Make yourself visible and let companies apply to you.
Roles
Contract Frontend Engineer Jobs
Overview
Looking for top CONTRACT Frontend Engineer jobs? Haystack connects skilled frontend developers with leading companies offering flexible contract opportunities. Explore the latest contract frontend engineering roles and boost your career with exciting projects today!
Senior Python Developer
Experis
London
Hybrid
Senior
£500/day - £540/day
RECENTLY POSTED
+7

Duration: 14 Months

Location: London, UK (3 days in office)

Active SC Clearance required

Inside IR35 - Umbrella only

About the Role:

  • We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be responsible for both front-end and back-end development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming languages and frameworks, and a passion for building high-quality, scalable, and maintainable software. Drive the development of MVPs, ensuring timely delivery and alignment with business goals.

Key Responsibilities:

Full-Stack Development:

  • Contribute to both front-end and back-end development of applications and APIs interacting with the Azure Databricks platform.
  • Develop user interfaces using modern front-end frameworks (e.g., React, Angular, Vue.js) and ensure a seamless user experience.
  • Develop robust and efficient back-end services and APIs using Python.

Python Development:

  • Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
  • Utilise relevant Python libraries and frameworks (e.g., Flask, Django, Pandas, NumPy).
  • Collaborate with cross-functional teams to build and enhance banking applications
  • Work closely with UI/UX Designers to integrate visualizations seamlessly into web applications or other platforms
  • Work on data interfaces to connect various systems within the bank.
  • Write unit and integration tests to ensure code quality and reliability.

.NET Development (Optional): Develop and maintain .NET code for back-end services, APIs, and integrations with other systems.

  • Utilise relevant .NET frameworks and technologies (e.g., ASP.NET Core, C#, Entity Framework).
  • Write unit and integration tests to ensure code quality and reliability.

Reverse Engineering:

  • Analyse and understand existing codebases (potentially Python) to identify areas for improvement, bug fixes, and new feature implementation.
  • Document findings and create clear specifications for changes.
  • Implement changes while maintaining the stability and functionality of the existing system.

Join us to work on impactful projects, utilise cutting-edge tech, and be part of a collaborative team shaping public sector innovation. Apply now to make a difference!

Senior Python Developer
Experis IT
London
Hybrid
Senior
£500/day - £540/day
RECENTLY POSTED
+7

Duration: 14 Months

Location: London, UK (3 days in office)

Active SC Clearance required

Inside IR35 - Umbrella only

About the Role:

We are seeking a highly skilled and versatile Senior Developer to join our team and contribute to the development and maintenance of our cutting-edge Azure Databricks platform for economic data. This platform is critical for our Monetary Analysis, Forecasting, and Modelling activities. The Senior Developer will be responsible for both Front End and Back End development, with a focus on Python, including the challenging but rewarding task of reverse engineering an existing codebase to integrate new features and improvements. This role requires a strong understanding of software development principles, experience with various programming languages and frameworks, and a passion for building high-quality, scalable, and maintainable software. Drive the development of MVPs, ensuring timely delivery and alignment with business goals.

Key Responsibilities:

Full-Stack Development:

  • Contribute to both Front End and Back End development of applications and APIs interacting with the Azure Databricks platform.
  • Develop user interfaces using modern Front End frameworks (eg, React, Angular, Vue.js) and ensure a seamless user experience.
  • Develop robust and efficient Back End services and APIs using Python.

Python Development:

  • Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
  • Utilise relevant Python libraries and frameworks (eg, Flask, Django, Pandas, NumPy).
  • Collaborate with cross-functional teams to build and enhance banking applications
  • Work closely with UI/UX Designers to integrate visualizations seamlessly into web applications or other platforms
  • Work on data interfaces to connect various systems within the bank.
  • Write unit and integration tests to ensure code quality and reliability.

.NET Development (Optional):

  • Develop and maintain .NET code for Back End services, APIs, and integrations with other systems.
  • Utilise relevant .NET frameworks and technologies (eg, ASP.NET Core, C#, Entity Framework).
  • Write unit and integration tests to ensure code quality and reliability.

Reverse Engineering:

  • Analyse and understand existing codebases (potentially Python) to identify areas for improvement, bug fixes, and new feature implementation.
  • Document findings and create clear specifications for changes.
  • Implement changes while maintaining the stability and functionality of the existing system.

Join us to work on impactful projects, utilise cutting-edge tech, and be part of a collaborative team shaping public sector innovation. Apply now to make a difference!

Senior React UI Developer - TypeScript, Redux, AgGrid, Tailwind - Investment Bank
Adlam Consulting Ltd
London
Remote or hybrid
Senior
£900/day - £950/day
RECENTLY POSTED
+10
  • Mandatory skills: TypeScript, React, Redux, AgGrid, Tailwind
  • Prefrerred Tech skills: Vite and Vitest, C#, MS SQL
  • Banking Industry Esssential
  • Soft skills: good team player, able to support/train juniors

We’re looking for a passionate Senior React Developer to lead the evolution of our UI platform, ensuring we build scalable, high-performance, Real Time, and maintainable Front End solutions. You’ll oversee development direction, collaborate with Back End teams proving APIs, and work closely with end-users to deliver exceptional experiences.

The role is in RISK XVA Front Office - Experience of Investment banking ESSENTIAL. XVA risk is desirable

This role is perfect for someone who thrives in a collaborative, agile environment, loves clean code and refactoring, and enjoys mentoring while staying hands-on with modern Front End technologies.

Tech Stack

Front: JavaScript, TypeScript, React, Redux Toolkit, AgGrid, SignalR, HTML 5, CSS, Tailwind CSS, NodeJS, Vite, Vitest, SSO, JWT, AUTH, MSW, IIS DevOps: GIT (Bitbucket), TeamCity, PowerShell Back: MS SQL

Nice to haves:

Back End skills: C#, .NET, Windows Services, ClickHouse, ASP .NET Web API, asynchronous message-driven communication, ORM libraries

Functional skills: Experience with Risk, XVA or Liquidity systems

Competencies:

Deep understanding with multiple significant projects on Web applications Deep understanding and experience of Object-Oriented Programming, patterns, and principles.

Deep understanding and experience of service-oriented architectures.

Deep understanding and experience of MS SQL.

Demonstrable experience with DevOps tools.

Ability to work independently and collaboratively in a team.

Excellent communication, analytical and organisational skills.

Attention to detail is essential especially when under pressure and time constraints.

Proactive and flexible approach to dealing with challenges.

Highly motivated to work directly for a Front Office IT team.

Acts with integrity and discipline.

Inside IR35; Partly Remote

Adlam Consulting operates as an Employment Agency & an Employment Business Applicants must be eligible to work in the specified location

Frontend Developer
Rullion - Eon
London
Hybrid
Mid - Senior
Private salary
RECENTLY POSTED

We are seeking a talented and motivated Frontend Developer with strong expertise in TypeScript to join our growing development team. In this role, you will work on building high-quality, scalable, and responsive web applications using React and TypeScript. You will collaborate closely with cross-functional teams to deliver exceptional user experiences, optimize performance, and contribute to the overall architecture of our platform.

Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London office. It is a full-time role, 40 hours per week.

Accountabilities:

  • Develop and maintain scalable and responsive web applications using React.js and TypeScript.
  • Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces.
  • Write clean, maintainable, and efficient code while adhering to best practices.
  • Optimize applications for maximum performance across a wide range of devices and browsers.
  • Participate in code reviews and maintain a high level of code quality.
  • Troubleshoot and debug issues in both development and production environments.
  • Contribute to architectural decisions and collaborate with other engineers on overall application design.
  • Ensure the scalability and security of applications by following best development practices.
  • Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the project as appropriate.
  • Work with version control systems like Git and ensure continuous integration and deployment processes are followed.
  • Collaborate with back-end developers to integrate RESTful APIs and handle data flow effectively.

Knowledge and Skills:

  • Proven experience in React.js and TypeScript development.
  • Strong understanding of JavaScript and modern front-end technologies.
  • Experience with state management libraries like Redux, Recoil, or similar.
  • Familiarity with RESTful APIs
  • Experience with version control systems, such as Git.
  • Solid understanding of web development fundamentals: HTML, CSS, and responsive design.
  • Strong debugging skills and the ability to troubleshoot performance issues.
  • Ability to write clean, modular, and well-documented code.
  • Strong communication skills and the ability to collaborate effectively in a team-oriented environment.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

SharePoint 365 Developer
Pontoon
London
Hybrid
Junior - Mid
£400/day - £415/day
RECENTLY POSTED

Join Our Team as a SharePoint 365 Developer!

Located London (3 days a week in office)

Rate: £415 Per Day Umbrella (no movement)

Duration: Minimum 6 months but likely long term.

Are you an innovative SharePoint Developer looking for an exciting opportunity in the financial sector for one of the biggest banks in the world? We invite you to bring your expertise and creativity to our dynamic team at a leading Financial Institution & Insurance provider based in Greater London!

About Us:
We pride ourselves on being at the forefront of technology in the finance industry. With a commitment to excellence and innovation, we empower our team to deliver top-notch solutions. Our office is just a cheerful 6-minute stroll from Crossharbour train station, making your daily commute a breeze!

What You’ll Do:
As a SharePoint Developer, you’ll play a pivotal role in designing, developing, and maintaining our SharePoint applications. Your contributions will enhance collaboration and streamline processes across the organization.

Your responsibilities will include:

  • Designing and implementing SharePoint solutions tailored to our business needs.
  • Collaborating with stakeholders to gather requirements and translate them into technical solutions.
  • Ensuring system performance, security, and reliability through best practices.
  • Troubleshooting and resolving issues to enhance user experience.
  • Providing training and support to team members and users.

What We’re Looking For:
We want someone who is not only skilled but also passionate about SharePoint development.

If you’re a proactive problem-solver with a great attitude, you’ll fit right in! Ideal candidates will possess:

  • Proven experience in SharePoint development (preferably SharePoint Online).
  • Strong knowledge of SharePoint Framework (SPFx), REST APIs, and Microsoft Power Platform.
  • Familiarity with JavaScript, HTML, CSS, and related web technologies.
  • Excellent communication skills to engage with both technical and non-technical stakeholders.
  • A team-oriented mindset and a willingness to learn and grow.

Ready to Make an Impact?
If you’re excited about the prospect of working in a fast-paced, rewarding environment, we’d love to hear from you! This is your chance to contribute to meaningful projects that shape the future of our organisation.

How to Apply:
Please submit your CV along with a brief cover letter detailing your experience and why you’re a great fit for this role. We can’t wait to meet you!

Join us in transforming the financial landscape with your SharePoint expertise. Apply now and let’s embark on this exciting journey together!

We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Senior Software Developer
Queen Square Recruitment Ltd
Newcastle upon Tyne
Hybrid
Senior
£350/day - £400/day
RECENTLY POSTED
+6

Location: Hybrid - Newcastle office preferred. Other UK locations available including London. Start day: ASAP Contractor rate: £400 per day inside IR35 Duration: 6 months, initially Role Overview As a Senior Software Developer, you’ll design, build, and maintain full‑stack digital services that support citizen‑facing government platforms. Working within a multi‑disciplinary Agile team, you’ll contribute to solution design while ensuring the stability, security, and resilience of the products you deliver. You’ll work across modern cloud environments, develop scalable backend services, build high‑quality UIs, and support continuous delivery through strong engineering practices and automated testing. Key Responsibilities • Develop and maintain digital services and contribute to solution design • Build backend services using Java (8+), Node.js, and Spring Boot • Develop UI components with performance, usability, and security in mind • Build secure, scalable solutions using AWS or Azure • Work with APIs, RESTful services, and microservice architectures • Use Docker/Kubernetes for containerisation • Create automated test suites to support CI/CD • Follow engineering best practices and code quality standards • Collaborate across Agile ceremonies with BA/DevOps/QA teams • Ensure accessibility standards (WCAG 2.2 AAA) are met Skills & Experience Essential • Full‑stack development experience • Strong hands‑on Java (8+), Node.js, Spring Boot • Experience with AWS and/or Azure • Knowledge of SQL and NoSQL databases • Docker and Kubernetes experience • Strong CI/CD and automated testing capability • Experience with APIs and microservices • Understanding of accessibility standards • Strong Agile delivery experience Desirable • Event‑driven architecture (e.g., Kafka) • ETL or external systems integration • Experience with SonarQube or similar tools • Background in accessible digital services • Cloud‑native/serverless familiarity • Awareness of AI/ML‑enabled development • Strong communication and hybrid‑working collaboration skills

Junior Software Developer - ReactNative and Javascript
Experis
Wrexham
In office
Junior
£250/day - £350/day
RECENTLY POSTED

Junior Software Developer - Contract

Contract: 12 months +

Location: Wrexham, 4-5 Days Onsite

A great opportunity for a Software developer who enjoys low-code configuration , automation, and problem-solving. You’ll help configure and deploy a digital platform by managing updates, integrations, and reusable components that support reliable, scalable product delivery.

Most of the role is focused on JSON-driven configuration , testing, and quality-not heavy coding.

What You’ll Do:

Configure and deploy updates, scripts, and fixes

Manage automated application deployments

Upload and validate translations

Test and verify all updates

Complete required GxP documentation

Collaborate with global engineering teams

Tech Environment

Frontend: JavaScript, React Native

Backend: Java

Platforms: Web + Android/iOS (no SDK work)

Cloud: Azure (AWS experience a bonus)

Heavy use of JSON , Git, and configuration tool

What We’re Looking For

3+ years’ software development experience or relevant degree

Exposure to Java, JavaScript, or React Native (personal projects welcome)

Strong problem-solving and testing mindset

Good understanding of JSON

Familiar with Git branching and version control

Clear communication skills and good teamwork

Please apply for immediate consideration.

TPBN1_UKTJ

Junior Software Developer - ReactNative and Javascript
Experis
Wrexham
In office
Junior
£250/day - £350/day
RECENTLY POSTED

Junior Software Developer - Contract Contract: 12 months + Location: Wrexham, 4-5 Days Onsite A great opportunity for a Software developer who enjoys low‑code configuration, automation, and problem‑solving. You'll help configure and deploy a digital platform by managing updates, integrations, and reusable components that support reliable, scalable product delivery. Most of the role is focused on JSON‑driven configuration, testing, and quality-not heavy coding. What You'll Do: Configure and deploy updates, scripts, and fixes Manage automated application deployments Upload and validate translations Test and verify all updates Complete required GxP documentation Collaborate with global engineering teamsTech Environment Frontend: JavaScript, React Native Backend: Java Platforms: Web + Android/iOS (no SDK work) Cloud: Azure (AWS experience a bonus) Heavy use of JSON, Git, and configuration toolWhat We're Looking For 3+ years' software development experience or relevant degree Exposure to Java, JavaScript, or React Native (personal projects welcome) Strong problem‑solving and testing mindset Good understanding of JSON Familiar with Git branching and version control Clear communication skills and good teamworkPlease apply for immediate consideration

Full Stack Software Engineer
Matchtech
Tring
Hybrid
Senior
£70/hour
RECENTLY POSTED
+2

Location: Tring (Predominately onsite with flex where project allows) Duration: 4-6 month contract IR35: Outside IR35 Role detaills: Our client, a leading entity in the Defence & Security sector, is seeking a highly motivated Senior Software Engineer to join them on a contract basis - The role will encompass the design and development of a web-based control and monitoring dashboard application for an antenna terminal system. Key Responsibilities: Design and develop a web-based control and monitoring dashboard application for an antenna terminal system. Engage in the full design life cycle from specifications generation to thorough regression testing of pre-production units. Build and maintain React/Next.js frontend applications and NestJS backend services within a shared pnpm monorepo environment. Integrate user-facing components with backend services using various communication protocols (REST, WebSockets, SNMP, MQTT, etc.). Develop the GUI using a mix of off-the-shelf UI components and custom modules. Ensure the UI code is well-structured, scalable, and testable, conforming to UX/architecture guidelines. Ensure compliance with modern accessibility standards and usability best practices across browsers and devices. Contribute to software architecture, project planning, and specification documentation. Job Requirements: Proficiency in frontend technologies including HTML5, CSS3, JavaScript, TypeScript, React, and Next.js. Experience with backend services using NestJS and related TypeScript tooling. Understanding of various communication protocols like TCP/IP, HTTP, and SNMP. Experience with containerization tools such as Docker. Ability to design, implement, integrate, and verify software applications on Linux and Windows OS. Proven product development experience from concept through deployment. Familiarity with networked applications that require low-latency and high-availability. Preferred Experience: Knowledge of communication systems design. Understanding of various communication protocols, including RS-232, I2C, CAN, SPI, USB, TCP, and UDP over IP. Familiarity with databases, web servers (e.g. Apache), and UI/UX design. Interested? Apply today via the link provided

Fullstack Engineer
Pontoon
London
Hybrid
Mid - Senior
Private salary
RECENTLY POSTED

Full-Stack Engineer (FX Trading Applications)

Location: London (onsite 3 days per week)Day Rate: £700 (via Umbrella Company)Contract: Fixed Term Contract until 31 December 2026

About the Role

Are you ready to dive into the dynamic world of FX Trading technology? Our client is seeking a talented Full-Stack Engineer with strong Java expertise and a passion for solving complex technical challenges. You’ll play a key role in building mission-critical components that power high-performance trading systems-working closely with cross-functional teams in a fast-paced, agile environment.

Key ResponsibilitiesEngineering & Development

  • Design and develop backend and frontend features for FX Trading applications.
  • Write well-designed, testable, and efficient code across the full stack.
  • Build automated test suites (unit, integration, contract, UI/API, performance).
  • Define metrics and implement automated evaluation and drift detection for AI-related components.
  • Reduce technical debt while improving modularity, observability, reliability, and performance.

Architecture & Integration

  • Integrate software components into cohesive, production-ready systems.
  • Design clear, maintainable API contracts and ensure backward-compatible changes.
  • Optimise low-latency, high-throughput services.

Operational Excellence

  • Troubleshoot, debug, and enhance existing systems.
  • Instrument services with metrics, logs, and traces for faster incident resolution.
  • Participate in deployments in line with strict change-control processes.
  • Champion production-ready development through CI/CD gates, feature flags, and safe rollout/rollback strategies.

Collaboration & Continuous Improvement

  • Partner with Product, Sales, Trading, Operations, and Data Science teams to deliver business-aligned features.
  • Participate in peer reviews while promoting secure coding and performance best practices.
  • Recommend improvements in architecture, tooling, developer experience, and testing strategy.
  • Contribute to a culture of engineering excellence and innovation.

About You

You’re an engineer who thrives in agile, collaborative environments and enjoys building systems that genuinely influence business outcomes. You bring strong Java expertise, familiarity with Spring/Spring Boot, and a solid understanding of RESTful APIs and microservices. Experience with Kafka, SQL, and frontend technologies like Angular or React will help you shine. And if you have exposure to AI or Machine Learning, even better-that’s a bonus our client truly values.

Qualifications

  • Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
  • 5-9 years of hands-on professional software development experience.
  • Experience in financial services-particularly within FX Trading-is highly desirable.
  • Strong communication skills and proven success working in agile, cross-functional teams.

Join the Team

Join a vibrant, forward-thinking engineering group dedicated to pushing the boundaries of technology in financial services. If you’re excited to build mission-critical systems that elevate trading performance and user experience, we want to hear from you.

Apply now and take the next step in your engineering career!

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone’s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive.

We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

Due to the high volume of applications we receive, we are unable to respond to everyone individually. If you do not hear from us within 48 hours of applying, please assume that your application has been unsuccessful on this occasion.

Full Stack Developer (Python / React)
Rise Technical Recruitment
London
In office
Mid - Senior
£60,000 - £70,000
RECENTLY POSTED
+2

Camden - Office Based
6-9 month FTC
60,000 to 70,000 Pro Rata + Benefits

Exciting opportunity for a skilled Full Stack Developer to join a fast-growing London business, helping to design and build the backend systems, automation tools, and cloud infrastructure that support the company’s technology roadmap.

The business is expanding its internal systems and automation capabilities and is looking for a developer with strong experience in Python, AWS cloud services, and modern API development. This role offers the chance to work on impactful projects including business automation, data processing systems, and modern web applications.

In this role you will collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and automation tools. You will work with technologies such as Python, AWS services including Lambda, EC2, S3, RDS, and API Gateway, as well as SQL databases and data processing libraries. You will also contribute to front end development using React where required and support integrations with Microsoft Office workflows and reporting systems.

The ideal candidate will have strong commercial experience developing backend systems using Python and building modern APIs. Experience with React, JavaScript or TypeScript, AWS cloud services, and SQL databases is essential.

Experience building automation tools, working with large datasets, or integrating with Microsoft Office workflows would be highly beneficial.

This is a unique opportunity to join a growing company at an exciting stage, working on modern cloud based systems while helping to improve automation, data processing, and development practices across the business.
The Role:
Design and develop backend systems and APIs using Python
Build secure, scalable, and maintainable cloud services within AWS
Develop automation tools and scripts that integrate with Microsoft Office workflows
Contribute to front end development using React where required
Design and maintain data processing pipelines and reporting systems
Optimise SQL queries and database performance
Collaborate with engineering teams and business stakeholders to build technical solutions
Contribute to improvements in development processes, tooling, and code quality
The Person:
Experienced Full Stack Developer with strong Python backend development skills
Commercial experience developing RESTful APIs and backend systems
Experience building modern web applications using React
Strong understanding of SQL databases, data modelling, and query optimisation
Experience working with AWS cloud services such as Lambda, EC2, S3, RDS, and API Gateway
Interest in automation, data processing, and business workflow integrations
Strong problem solving skills, attention to detail, and effective communication
Experience with Microsoft Office automation, data pipelines, or CI/CD pipelines is a plus

Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client.

We are an equal opportunities company and welcome applications from all suitable candidates.

Senior Android Engineer
Infoplus Technologies UK Ltd
Bristol
Remote or hybrid
Senior
£350/day - £400/day
RECENTLY POSTED

Mandatory skills

MVVM/MVI architecture

Java/Kotlin

Job Description

Were looking for a self- motivated Senior Android Engineer, proficient in Android mobile
development. Youll have technical know-how from crafting, developing, and producing mobile
components and services, stakeholder management working closely with strategy teams to architect, design and implement solutions.

What we need from you / essential skills & experience:

Excellent knowledge of Kotlin/Java.
Strong knowledge of Android SDK, Android UI design principles, patterns, and best
practices
Experience with offline storage, threading, and performance tuning
Awesome knowledge of the open-source Android ecosystem and the libraries available
for common tasks and benchmarking and optimisation
Proficient in Google’s Android design principles, interface guidelines and code versioning
tools, such as Git
Applying SOLID Principles
MVVM/MVI architecture, Android Architecture Components and other Jetpack libraries
Jetpack Compose
Working in a modularised codebase
UI testing

Frontend Developer
TXP
London
Hybrid
Junior - Mid
£575/day

Front-end Developer (Public Sector)

6 Month Contract - £575/day Inside IR35

Role Details

* Location: London, Bristol, or Manchester (flexible, most team in London) - minimum 2
days/week onsite at base
* Duration: 6 months | Rate: £575/day inside IR35
* Clearance: Active SC preferred (BPSS with SC eligibility minimum accepted)

Required experience:

* Owned frontend deliverables:
* Minimum 2 years: Frontend development experience
* Ruby and Python: Familiarity required, Python preference
* User-centered design focus: Essential approach

Collaboration & Working Style

* Team working: Comfortable collaborating with colleagues
* Independent & proactive: Able to hit ground running within first few weeks (support provided)
* Enthusiasm for learning: Eager to try new things
* Work with back-end developers and designers: Primary collaboration

Accessibility & Design

* WCAG: Knowledge of Web Content Accessibility Guidelines
* Figma experience: Prototyping software experience
* GDS Standards: Knowledge of GDS design systems desirable

SharePoint developer
HAYS
Glasgow
Hybrid
Mid - Senior
£320/day

Contract job - M365 SharePoint Developer -Galsgow

  • Job Title: M365 SharePoint Developer (BPSS Eligible)
  • Location: Glasgow
  • Contract Duration: Until 31/12/2026
  • On Site Requirement: 2-3 days per week
  • Day Rate: £320Clearance
  • Role Overview We are seeking an experienced M365 SharePoint Developer with strong front end expertise to support the design, development, and maintenance of SharePoint applications across both SharePoint Online and On Prem environments. The ideal candidate will have approximately 8 years of relevant experience and a solid background in React and modern front end technologies.

Role SummaryThe successful candidate will be responsible for designing, developing, customising, and maintaining SharePoint solutions that enhance collaboration, document management, and business process automation.Key Responsibilities

  • Build and maintain SharePoint sites, applications, lists, libraries, and web parts.
  • Customise SharePoint Online and SharePoint Server using SPFx, JavaScript/TypeScript, React, HTML, and CSS.
  • Develop workflows, forms, and automation using Power Automate, Power Apps, and SharePoint Designer.
  • Integrate SharePoint with third party and enterprise systems.
  • Troubleshoot SharePoint issues and provide user support and training.
  • Ensure platform performance, security, documentation, and adherence to best practices.

Required Skills

  • SharePoint Online and On Prem development
  • SPFx, JavaScript/TypeScript, HTML/CSS, React
  • Power Apps and Power Automate
  • Experience with lists, libraries, content types, and permissions
  • Proficiency in REST APIs, CSOM, PnP
  • Strong troubleshooting capabilities and documentation skills

Preferred Skills

  • Experience integrating SharePoint with external systems
  • Basic exposure to Power BI
  • Understanding of Azure AD / Entra ID fundamentals
  • Familiarity with CI/CD practices

Learning Digital Developer
Robert Walters
Edinburgh
Hybrid
Mid
£200/day - £250/day

Temporary Digital Learning Developer

Contract: Up to 12-month temporary
Day rate: £200 - £250
Location: Edinburgh (E12) - 3 days onsite, 2 days working from home
Hours: Mon-Fri, 9-5
Intevriew: 2 stages - 1 virtual, 1 F2F

Keywords: digital learning, micro-learning, e-learning, accessibility, agile development, interactive content, global team, educational technology, engagement, learning solutions

An exciting opportunity has arisen for a Digital Learning Developer to join a forward-thinking Operational Learning team based in Edinburgh. This role is perfect for someone who is passionate about transforming the way employees learn and develop, with a focus on delivering engaging, skills-based digital learning experiences. The successful candidate will play a pivotal part in shaping innovative micro-learning strategies that support business up-skilling and drive learner engagement across a global organisation. With access to cutting-edge tools and the chance to work alongside knowledgeable professionals, you will be empowered to create impactful content that truly makes a difference. Flexible working opportunities and a supportive environment ensure you can thrive while contributing to meaningful projects that enhance employee knowledge and performance.

  • Be at the forefront of digital learning transformation, designing unique and interactive experiences that foster real skill development and engagement.
  • Collaborate with a global network of experts in an inclusive, supportive team environment where your ideas are valued and your growth is encouraged.
  • Enjoy flexible working opportunities and access to advanced educational technology as you help shape the future of operational learning.

What you’ll do:

As a Digital Learning Developer, you will immerse yourself in the creation of engaging digital content designed to elevate employee knowledge and job performance. Your day-to-day activities will involve collaborating closely with colleagues across different regions to deliver micro-learning modules that are both visually appealing and pedagogically sound. You will be responsible for ensuring all materials meet rigorous accessibility standards while also reflecting the latest trends in educational technology. By leveraging your expertise in tools such as Adobe Creative Suite, Articulate Storyline, Figma, Vyond, Centrical, Synthesia, SCORM compliance, and LMS platforms like Oracle, you will bring innovative ideas to life. Success in this role means not only producing high-quality digital assets but also fostering an inclusive learning culture where every employee feels supported on their development journey.

  • Design and develop impactful digital learning solutions tailored to diverse audiences, ensuring each piece of content supports business upskilling objectives.
  • Utilise agile development methodologies to create engaging e-learning courses, infographics, animations, simulations, assessments, microlearnings, and interactive learning games.
  • Ensure all training materials adhere strictly to audio/visual technical specifications, brand guidelines, accessibility standards such as WCAG 2.1 A-AA, and industry best practices.
  • Work collaboratively on multiple large-scale projects with stakeholders from various departments as part of a global Learning Development team.
  • Produce high-quality digital learning assets consistently while maintaining project schedules and meeting agreed deadlines.
  • Apply up-to-date knowledge of current trends in e-learning, including advancements in artificial intelligence usage within learning environments.
  • Develop fully accessible digital solutions that cater to all learners, ensuring inclusivity is at the heart of every project delivered.
  • Maintain strong communication with stakeholders to gather requirements, provide updates, and incorporate feedback into ongoing projects.
  • Continuously improve personal expertise in educational technology, adult learning principles, and instructional design best practices through research and professional development.
  • Support the implementation and integration of digital learning solutions within existing Learning Management Systems (LMS) platforms.

What you bring:

To excel as a Digital Learning Developer in this environment, your background should include substantial hands-on experience creating interactive digital content for corporate audiences using leading industry tools. Your approach should reflect a deep understanding of how adults learn best online-balancing creativity with adherence to technical specifications and accessibility requirements. You will bring an empathetic mindset that values inclusivity while demonstrating dependability through consistent delivery of high-quality work. Your collaborative spirit will shine as you connect with colleagues globally to share insights and co-operate on shared goals. Additionally, your enthusiasm for staying abreast of emerging technologies ensures your contributions remain fresh and relevant within an ever-evolving landscape.

  • Demonstrated experience building digital learning solutions using a variety of authoring tools such as Adobe Creative Suite applications, Articulate Storyline, Figma, Vyond, Centrical, Synthesia, SCORM compliance tools, and Microsoft Office suite.
  • Proven ability to design engaging e-learning interventions that go beyond traditional page-turners by incorporating interactivity and multimedia elements.
  • Comprehensive understanding of accessibility standards including WCAG 2.1 levels A-AA requirements with hands-on experience developing fully accessible digital content.
  • Up-to-date knowledge of current trends in e-learning technology with particular awareness of advancements in artificial intelligence for education.
  • Experience working within agile development frameworks to deliver projects efficiently while adapting quickly to changing priorities or stakeholder needs.
  • Strong interpersonal skills enabling effective collaboration with global teams and stakeholders from diverse backgrounds.
  • Excellent organisational abilities allowing you to manage multiple large-scale projects simultaneously without compromising quality or deadlines.
  • Commitment to continuous professional development in educational technology, adult learning theory, and instructional design best practices.
  • Ability to communicate complex concepts clearly both verbally and in writing when liaising with stakeholders or presenting new ideas.

What sets this company apart:

This organisation stands out for its commitment to radically transforming operational learning by prioritising proactive skills-based strategies that empower employees at every level. The team fosters an inclusive culture where sharing knowledge is celebrated and everyone’s input is valued-creating an environment where you can grow professionally while making a tangible impact on others’ careers. With access to state-of-the-art tools and resources plus opportunities for ongoing training and development, you’ll find yourself supported by considerate leadership who genuinely care about your success. Flexible working arrangements further enhance work-life balance so you can perform at your best while enjoying personal wellbeing. If you’re looking for a place where innovation meets compassion-and where your efforts directly contribute to collective achievement-this is the ideal setting for your next career move.

What’s next:

If you are ready to make a meaningful difference by shaping the future of digital learning within a supportive global team, this is your moment! Apply today by clicking on the link - take the next step towards an inspiring new chapter in your career.

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Front End Developer
ISR RECRUITMENT LIMITED
London
Hybrid
Senior - Leader
£600/day - £700/day
  • Senior Front-End Developer (Creative Technologist)
  • 6-month contract (initially)
  • Market Rates
  • Inside IR35
  • Remote Working (plus x1 day per week in central London)

The Opportunity

Our client is seeking a Senior Creative Technologist / Senior Front-End Developer to play a pivotal role in shaping the future of the Client Design Practice for a $bn US tech platform and influence the delivery of globally recognised digital experiences,

Joining a forward-thinking organisation at the intersection of design, technology and innovation, where you will help define how advanced prototypes and production-ready digital platforms are conceived, engineered and delivered, while working within a highly creative and technically ambitious environment.

You will be consulting alongside the Technology Director, Lead Visual Designer and an established Offshore Development team to ensure creative ideas are not only technically achievable but executed to an exceptional standard.

You will operate as a senior technical voice within the business, translating conceptual ideas into high-performance digital experiences while influencing architectural and technology decisions across a range of complex projects.

NB: This role is remote-first, with collaborative in-person sessions in the central London office one day per week.

Skills and Experience

Essential

  • A proven pedigree with a minimum of 7 years professional front-end development experience, including senior or leadership responsibilities
  • Expert knowledge of JavaScript, TypeScript, React and modern build pipelines
  • Experienced in delivering technically complex prototypes and digital products with a strong background in creative technology and interactive digital experience development
  • Advanced experience with animation frameworks such as GSAP, Lottie or Framer Motion, with experience integrating APIs, headless CMS platforms and cloud-based architectures
  • Demonstrated experience collaborating across global and cross-functional teams, possessing strong communication skills with ability to engage both technical and creative stakeholders

Desirable

  • Experience with web-based 3D technologies including Three.js, WebGL or shader development
  • Exposure to AI or machine-learning driven creative workflows
  • Previous experience within digital agencies, creative studios or innovation environments

Applications:

Please contact Edward here at ISR Recruitment to learn more about our client and how they are leading the way in developing the next generation of technology solutions within their sector through innovation and transformational technology?

Full Stack Developer
ISR RECRUITMENT LIMITED
Not Specified
Remote or hybrid
Mid - Senior
£300/day - £325/day
+4

The Opportunity:

We are seeking a Full Stack Developer to join a live GOV-UK service environment in a hands-on role within an agile, autonomous delivery team.

You will contribute across both backend and frontend development, helping refine and evolve a live digital service where user impact and service reliability are paramount.

The role requires strong technical delivery capability, sound engineering judgement and the confidence to engage constructively with both technical and non-technical stakeholders.

This is not a maintenance-only position, you will play an active role in architectural discussions, continuous improvement and shaping the technical direction of the service.

Skills and Experience:

  • Ruby on Rails
  • Java (Spring Boot)
  • AWS
  • Experience deploying and managing serverless applications within AWS (Lambda and/or Fargate).
  • Infrastructure as Code experience using Terraform.
  • Solid working knowledge of PostgreSQL.
  • Experience with Git, CI/CD pipelines and cloud-based development environments.
  • Proven experience working within agile teams on live services, working closely with user-centred designers.
  • Experience working within GDS/GOV-UK service standards would be ideal.

Role and Responsibilities:

  • Build and maintain backend services using Java (Spring Boot) and PostgreSQL.
  • Develop and enhance frontend functionality using Ruby on Rails and GOV-UK frontend.
  • Contribute to architectural decisions and technical direction.
  • Write clean, maintainable, well-tested code in line with modern engineering standards.
  • Participate in code reviews, agile ceremonies and iterative delivery cycles.
  • Ensure changes are assessed carefully for impact on live users.
  • Support demonstrations and provide clear technical updates to clients and stakeholders.
  • Collaborate with technical and non-technical stakeholders to refine and improve a live GOV-UK service.
  • Working alongside user-centred designers to improve user experience.
  • Engaging directly with clients and explaining technical concepts clearly.

NB: The successful candidate will be required to undergo a basic level of security clearance before undertaking the assignment (two to four weeks lead-time).

Applications:

Please contact Edward Laing here at ISR to learn more about our client and how they are leading the way in developing the next generation of technical solutions through innovation and transformational technology

Senior Front-End Developer
ISR RECRUITMENT LIMITED
London
Hybrid
Senior
Private salary
  • Senior Front-End Developer (Creative Technologist)
  • 6-month contract (initially)
  • Market Rates
  • Inside IR35
  • Remote Working (+ x1 day per week in central London)

The Opportunity

Our client is seeking a Senior Creative Technologist / Senior Front-End Developer to play a pivotal role in shaping the future of their digital experience delivery.

Joining a forward-thinking organisation at the intersection of design, technology and innovation, where you will help define how advanced prototypes and production-ready digital platforms are conceived, engineered and delivered.

You will be consulting alongside the Technology Director, Lead Visual Designer and an established Offshore Development team to ensure creative ideas are not only technically achievable but executed to an exceptional standard.

The successful candidate will bring experience partnering with leading, high profile, global brands providing creative technology consultancy that aligns creative ambition with technical feasibility across multidisciplinary creative and development teams.

The Role:

This is an opportunity to influence the delivery of globally recognised digital experiences while working within a highly creative and technically ambitious environment where you will have genuine input into technology direction, innovation strategy and creative execution.

You will operate as a senior technical voice within the business, translating conceptual ideas into high-performance digital experiences while influencing architectural and technology decisions across a range of complex projects.

NB: This role is remote-first, with collaborative in-person sessions in the central London office one day per week.*

Skills and Experience

Essential

  • Minimum of 7 years professional front-end development experience, including senior or leadership responsibility
  • Expert knowledge of JavaScript, TypeScript, React and modern build pipelines
  • Proven experience delivering technically complex prototypes and digital products with a strong background in creative technology and interactive digital experience development
  • Advanced experience with animation frameworks such as GSAP, Lottie or Framer Motion, with experience integrating APIs, headless CMS platforms and cloud-based architectures
  • Demonstrated experience collaborating across global and cross-functional teams, possessing strong communication skills with ability to engage both technical and creative stakeholders

Desirable

  • Experience with web-based 3D technologies including Three.js, WebGL or shader development
  • Exposure to AI or machine-learning driven creative workflows
  • Previous experience within digital agencies, creative studios or innovation environments

Role and Responsibilities:

Creative Technology Leadership

  • Lead development of high-fidelity prototypes, proof-of-concepts and immersive digital experiences
  • Drive adoption and exploration of emerging technologies including AI-driven creative tooling, WebGL, WebAR, immersive web and creative coding techniques
  • Translate conceptual and design-led thinking into scalable technical solutions
  • Provide technical insight to creative and strategic stakeholders on feasibility, innovation opportunities and implementation approaches

Senior Front-End Engineering

  • Own the front-end architecture and delivery across complex digital builds
  • Develop sophisticated, high-performance interfaces using React, TypeScript, and modern front-end tooling
  • Contribute to the evolution of component libraries and internal design systems
  • Deliver best-in-class animation, interaction, accessibility and performance optimisation

Cross-Disciplinary Collaboration

  • Partner closely with design leadership to deliver visually exceptional, pixel-perfect user experiences
  • Support technical discovery, scoping workshops and stakeholder presentations
  • Mentor developers and promote knowledge sharing across distributed teams

Innovation and Standards

  • Evaluate and introduce emerging frameworks, tools and methodologies
  • Champion best practice across performance, testing, accessibility and development workflows
  • Contribute to long-term creative technology strategy and capability development

Applications:

Please contact Edward here at ISR Recruitment regarding this newly created contract role working as a Senior Front End Developer (Creative Technology) on an Inside IR35 basis; as well as learning more about our client and how they are leading the way in developing the next generation of technology solutions within their sector through innovation and transformational technology?

Senior Cloud Full Stack Developer
James Newbury
Dunstable
Hybrid
Senior
£60,000 - £80,000
+1

If you are a versatile and highly skilled Senior Cloud & Full Stack Engineer ready to work, support and advance this UK leading companies modern application ecosystem, then please, do read on!

This role requires strong expertise across cloud infrastructure, backend microservices, frontend development, and legacy system support. The ideal candidate will possess comprehensive skills in all these areas, ensuring a well-rounded and robust contribution to our technology landscape.

Duration: temporary contract for 3-6months or so

This is a paid per hour PAYE temporary role

Rate of Pay PH: 33-43ph plus holiday pay (circa 60-80,000 if salaried)

Location: hybrid. Need to work in the office in Central Bedfordshire for meetings, reviews and handovers, which will be once a week or so.

Hours: 35 hrs per week 9am-5pm (1 hr lunch) Days: Mon-Fri

Benefits:

  • free parking
  • electric vehicle charge points
  • holiday pay accrual
  • wfh most of the time
  • pension after a qualifying period

Key Responsibilities

  • Design, build, and maintain AWS infrastructure-as-code deployments using Terraform and related tooling.
  • Manage and optimize serverless microservices, including Lambda functions, API Gateway, and Amplify-hosted applications.
  • Support and enhance Python-based Lambda microservices and Node.js backend components.
  • Maintain and develop React-based front-end applications, including complex UI components and dynamic API integrations.
  • Oversee database administration for MySQL/RDS
  • Apply strong security best practices across infrastructure, applications, and data flows.
  • Provide maintenance and incremental improvements to legacy .NET applications where required.
  • Produce and maintain clear technical documentation for infrastructure, services, and processes.
  • Collaborate effectively with cross functional teams through strong communication and teamwork.

Core Technical Skills (Primary Focus & Essentials/Nice to have)

  • AWS (essential) IaC & Terraform
  • Python (essential) for Lambda microservices
  • Node.js backend development (essential)
  • MySQL/RDS administration (essential)
  • React, HTML, CSS, and AG Grid
  • API Gateway & dynamic API integrations
  • Documentation and communication excellence (essential)
  • AWS Amplify workflows
  • Legacy .NET application support

Ideal Candidate Profile

  • Comfortable working across cloud infrastructure, backend services, and front-end applications.
  • Able to take ownership of systems end-to-end, from architecture to deployment.
  • Strong documentation habits and the ability to communicate clearly with technical and non?technical stakeholders.
  • A collaborative mindset with a focus on team alignment and shared problem?solving.
  • Eager to learn new technologies and expand into unfamiliar areas.
  • Excellent communication skills and a proactive approach.
  • Proven relevant experience, 3 years or more.
  • Eligibility to work in the UK on a full time basis (please, no student visas as it will not cover the duration of the hours/contract)
  • Ideally, a driver as the location of the office is not close by any public transport links

This is to start asap. So if you are this amazing, talented Cloud & Full Stack Engineer, then please send your cv to James Newbury Appointments for immediate review. If you do not hear back within 3 working days, unfortunately, you will not have been shortlisted on this occasion, however ,we would like to thank you for your interest and wish you all of the very best in your search.

Senior Moodle Developer
SF Recruitment
Coventry
Hybrid
Senior
£47,000 - £56,000

(Full Stack / PHP) - 6 Month FTC - Hybrid 1 day a week, West Midlands
£47,000 - £56,000 per annum

SF Technology are supporting a leading UK Higher Education institution in the recruitment of a Senior Moodle Developer to join their Digital Learning team on a 6-month fixed-term contract.

This is a hands-on, senior-level development role requiring strong experience in Moodle plugin development, integrations and enterprise-scale platform enhancement.

The Role
You will be responsible for the ongoing development, integration and optimisation of a large-scale Moodle environment within a complex Higher Education setting.

Key responsibilities:
Developing and maintaining custom Moodle plugins
Building and supporting deep Moodle integrations (REST APIs, LTI, data exchange)
Enhancing performance through logging, caching and clean code practices
Supporting Echo360 and related learning technologies
Providing senior-level troubleshooting (2nd/3rd line support)
Collaborating with internal developers and technical stakeholders
Contributing to continuous improvement and technical best practice
This role requires someone who can operate independently and deliver high-quality, scalable solutions.

Essential Experience
Proven hands-on Moodle development experience
Moodle plugin development (build or significant customisation)
Strong PHP development skills
REST API design and implementation experience
JavaScript, CSS and front-end development capability
Experience working with integrations across multiple systems
Linux command line familiarity
Higher Education experience is highly desirable.

Working Arrangement
1 day a week on site
West Midlands University
6-month fixed-term contract
Pro rata salary
Immediate start preferred

Due to the specialist nature of this role, we are particularly keen to speak with developers who can demonstrate deep Moodle plugin and integration expertise.
Apply via SF Technology for a confidential discussion.

Software Developer (SC Cleared)
Syntax Consultancy Ltd
London
Hybrid
Mid - Senior
£700/day

London (Hybrid)
6 Month Contract
to £700/day (Inside IR35)

Software Developer needed with active SC Security Clearance and strong C#, .NET, SQL, Angular, HTML and JavaScript skills.

6 Month Contract based in Central London (Hybrid). Start ASAP in Feb/March 2026.

Hybrid Working - 2 days/week remote (WFH), and 3 days/week working on-site from the Central London office.

A chance to work with a leading global IT and Digital transformation business specialising in Government projects:

  • Experienced Software Developer / Software Engineer needed to join our team working on the development of data modelling solutions.
  • Must have in-depth C#, .NET, SQL, Angular, HTML + JavaScript development expertise.
  • Experience of Agile methods, Azure DevOps, CI/CD pipeline maintenance + automation scripting, also strongly preferred.
  • Banking / Financial Services domain experience preferred.
  • Must hold active SC Security Clearance used on a project within the past 12 Months.
Page 1 of 2
Frequently asked questions
Haystack offers a variety of contract Frontend Engineer positions, ranging from short-term projects to long-term contracts across different industries, including startups, tech companies, and agencies.
To apply, simply create a profile on Haystack, upload your resume, and browse the available contract Frontend Engineer listings. When you find a job that fits, click the apply button and follow the instructions provided.
Both options are available. Many contract Frontend Engineer jobs on Haystack offer remote work opportunities, but some may require you to work on-site depending on the employer's requirements. You can filter jobs based on your preference.
Common skills for contract Frontend Engineers include proficiency in JavaScript frameworks like React, Angular, or Vue.js, HTML, CSS, version control systems like Git, and experience with responsive design and cross-browser compatibility.
Haystack facilitates the connection between you and the employer but contract negotiations including duration, pay rate, and other terms are typically handled directly between the contractor and the employer once you are shortlisted or offered the job.