SharePoint / Microsoft 365 Application Developer required by our market leading client in Bristol. This will be a 3 month initial contract, likely to extend and will sit Outside IR35.

We are looking for an experienced SharePoint / Microsoft 365 Application Developer to support ongoing digital transformation projects. This is a hands-on role requiring strong technical expertise, problem-solving skills, and the ability to deliver independently in a fast-paced environment.

Key Responsibilities:

• Design, develop, and maintain SharePoint Online sites, libraries, lists, and workflows.
• Build custom solutions using Power Apps, Power Automate, and PowerShell.
• Develop modern SharePoint components using SPFx (SharePoint Framework).
• Integrate Microsoft 365 services including Teams, OneDrive, Azure AD, and Exchange Online.
• Migrate content from legacy SharePoint or file systems into SharePoint Online.
• Create reusable templates, components, and governance-aligned solutions.
• Troubleshoot and resolve issues across SharePoint and Microsoft 365 applications.
• Ensure solutions follow security, compliance, and best practice guidelines.

Essential Skills & Experience:

• Strong experience with SharePoint Online development and configuration.
• Expertise in SPFx, TypeScript, React, and modern SharePoint development.
• Deep understanding of Power Platform (Power Apps, Power Automate).
• Experience with Microsoft Graph API and REST APIs.
• Strong knowledge of Azure AD, permissions, and identity management.
• Understanding of Microsoft 365 governance, security, and compliance.

Desirable Skills:

• Experience with SharePoint migrations (ShareGate, AvePoint, etc.).
• Knowledge of Azure Functions, Logic Apps, or other Azure services.
• Teams app development and AI experience.
• Familiarity with DevOps pipelines for SPFx deployments.
• Understanding of information architecture and UX best practices.

Ideal Candidate:

• Someone who can take ownership of requirements and deliver end-to-end solutions.
• Comfortable working in a hybrid or remote environment.
• Able to advise on best practices and suggest improvements to existing processes.

SharePoint/ Office 365 Consultant - Hybrid / Canary Wharf - 6 month Contract - Banking

TIER 1 BANK IN CANARY WHARF

Role - SharePoint/ Office 365 Consultant

Duration - 6 months with very likely extension

Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office

Rate - 415 per day (Inside IR35)

Tech Stack -

• Sharepoint
• Office 365
• Power apps
• Power Automate
• HTML, Javascript, CSS

Tasks -

• Working with the team and the wider development team to both grow and to help adopt Agile like methodologies with practical implementation alongside the daily operation support people for existing SharePoint/Office 365 applications.
• Working with the wider Development and Architecture teams to develop and establish best practices of SharePoint/Office 365.
• Contributing to and regularly leading the technical and design workshops within the team.
• Critically and actively conducting code review procedures to ensure improvement in skills across the team.
• Participating in exercises to both plan and estimate upcoming work volumes.
• Contributing to the rollout of new tools and applications that will improve the development processes.
• Enhancing performance, scalability and security issues across the design and implementation phases.
• Following “Change Management Control procedures” to get approvals for any updates in the Production systems and providing “Maintenance reports” for non-Production environments.
• Participating in both definition and configuration of SharePoint/Office 365 environments in the Disaster Recovery sites.
• Encouraging and supporting the continuous improvement and upskilling of all members in the team, as well as the wider development department
• Development of Office 365 tools including SharePoint Online (PowerApps, Power Automate and SPFX or ReactJS).
• Analysing of business requirements and providing constructive feedback.
• Creating documentation to detail deliverables by the relevant teams with enough depth for both technical and business viewpoints.
• Providing scripts for database enquiry languages, i.e., T-SQL (SQL Server) and PL/SQL (Oracle) to provide both analysis and exporting data etc. based on business requirements.

GCS is acting as an Employment Business in relation to this vacancy.

Craft CMS Developer - Part-Time Contract Role

We’re looking for an experienced Craft CMS Developer to join a digital team and help deliver high-quality, content-rich websites for higher education institutions.

Please note this is a part-time contract role offering 2 days per week on an ongoing basis.

You’ll work closely with designers, project managers, and content teams to build, maintain, and support Craft CMS websites that are robust, accessible, and easy to manage. This role is ideal for someone who enjoys working on thoughtful, design-led projects and is comfortable taking ownership of builds and ongoing support.
Key Responsibilities

• Build and maintain websites usingCraft CMS, following best practices and modern development standards

• Develop custom Craft CMS templates, fields, and components

• Collaborate with designers to implement responsive, accessible front-end solutions

• Work withPHP,Twig,JavaScript, andBootstrapto deliver high-quality user experiences

• Set up, configure, and support hosting environments, including:

• Craft CMS Hosting

• Cloud platforms such asGoogle Cloud Platform (GCP)and/orAWS

• Manage deployments, updates, and ongoing site maintenance

• Troubleshoot bugs, performance issues, and hosting-related problems

• Contribute to technical planning and provide input on implementation approaches

• Ensure projects meet accessibility, security, and performance standards (e.g. WCAG awareness)

Required Skills & Experience

• Commercial experience working withCraft CMS(2+ years preferred)

• Strong working knowledge of:

• PHP

• Twig

• JavaScript

• Bootstrap(or similar CSS frameworks)

Rate: 450 a day
IR35: Inside IR35
Location: Derby - 40% on site
Duration: Initially 6 months

You will join a global IT Consultancy delivering digital transformation to their financial services client.
In this role you will design and deliver intuitive, high-quality user interfaces the client’s platform, contributing to a series of incremental enhancements and small-scale initiatives.
The role will focus on improving customer and adviser experiences, ensuring usability, accessibility, and performance across the front end.

Your Skills & Experience

. Strong experience as a Front End Developer, delivering modern web applications.
. Proficiency in: Angular (primary framework) HTML, CSS, and TypeScript
. Experience integrating with RESTful APIs and backend services.
. Understanding of responsive design, accessibility (e.g. WCAG), and performance optimisation.
. Experience working within Agile or hybrid delivery environments.
. Familiarity with tools such as Git, CI/CD pipelines, and modern front-end build tools.

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

Front End Developer (SC Cleared)

Location: Ipswich (100% On-site)

Contract Length: 6 Months

Security Clearance: Active SC Clearance Required (Immediate Start)

The Role

We are seeking a highly skilled Front End Developer with a strong software engineering background to lead the modernization of our application suite at Adastral Park. This is a hands-on role where you will be responsible for transitioning existing applications to a TypeScript and React baseline, utilizing our established internal boilerplate to drive security, performance, and development efficiencies.

As a key contributor in an Agile environment, you won’t just be coding; you will be the bridge between technical execution and product vision-capturing requirements directly from Product Owners and translating them into high-quality, version-controlled software.

Core Objectives

• Modernization: Align legacy applications with our current TypeScript/React baseline and internal standards.
• Security & Efficiency: Enhance application security protocols and streamline front-end performance.
• End-to-End Delivery: Manage the full development lifecycle, from requirement capture in JIRA to final stakeholder demos.
• Agile Leadership: Drive sprint ceremonies and maintain transparency through regular progress demonstrations.

Key Responsibilities

• Technical Audit: Assess and document the current state of existing applications to identify rewrite constraints.
• Requirement Engineering: Collaborate with Product Owners to define features and break them down into actionable JIRA stories.
• Development: Execute the re-write of applications using React and TypeScript, ensuring strict adherence to version control and coding standards.
• Collaboration: Participate in all Agile ceremonies (stand-ups, retrospectives, and planning) and lead demos for stakeholders.
• Documentation: Ensure all technical documentation is updated to reflect the new architecture and deployment workflows.

Technical Requirements

• Core Stack: Expert-level proficiency in React and TypeScript.
• Engineering Excellence: A deep background in software engineering principles (DRY, SOLID, Modular Design).
• Tooling: Experience with JIRA for task management and Git for version control.
• Standardization: Proven experience working with “Boilerplate” architectures to ensure consistency across large-scale projects.
• Process: Strong familiarity with Agile methodologies and the full SDLC.

Mandatory Criteria

• Security Clearance: You must hold current and active SC Clearance due to the nature of the site and data.
• On-site Presence: This role requires being on-site 5 days a week at Ipswich. No remote/hybrid options are available for this initial 6-month term.
• Availability: Immediate start preferred.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

If you are a Full Stack Developer with strong UI experience, we have a new 1-year FTC we’d like to discuss with you. This role would be ideal for someone with 3-5 years’ experience and requires 3 days per week onsite in The City of London.

About the Company

A leading global financial services firm specialising in electronic trading and liquidity solutions is undergoing a significant technology transformation. With an established presence across major financial hubs, the business works with top-tier institutional clients and is investing heavily in modernising its trading platforms and infrastructure.

This is an opportunity to join a high-performing, collaborative technology team working on cutting-edge, real-time systems within a fast-paced environment.

The Role

We’re looking for a mid-level Full Stack Developer with strong front-end expertise to play a key role in delivering next-generation trading applications.

You’ll join a small Agile team, working closely with both technology and business stakeholders on greenfield and enhancement projects, with a particular focus on real-time UI development.

This role would suit someone who thrives in a dynamic environment and enjoys building high-performance, user-centric applications.

Key Responsibilities

• Translate user stories into scalable, high-quality technical solutions
• Contribute to Agile ceremonies including sprint planning, stand-ups, and retrospectives
• Design, build, test, and deploy applications within a microservices architecture
• Develop responsive, real-time front-end interfaces for trading workflows
• Build proof-of-concepts (PoCs) and UI prototypes to support business requirements
• Write and maintain integration tests as part of the development lifecycle
• Collaborate with cross-functional teams to deliver key milestones
• Provide support for production systems when required

Technical Skills & Experience

Essential:

• Strong experience with Next.js, React, and TypeScript
• Solid front-end engineering experience, ideally within real-time or trading environments
• Experience with WebSockets or SignalR for real-time communication
• Backend development experience with .NET (C#) and/or Python
• Strong understanding of REST APIs and microservices architecture
• Experience with message brokers (e.g. RabbitMQ or Kafka)
• Knowledge of caching technologies (e.g. Redis)
• Experience with Azure DevOps / CI/CD pipelines / Git
• Working knowledge of SQL and NoSQL databases
• Experience with cloud platforms (Azure or AWS)

Desirable:

• Experience with containerisation (Docker, Kubernetes)
• Knowledge of financial systems or trading platforms
• Exposure to FIX protocol
• Understanding of asset classes such as FX, derivatives, or similar

Qualifications & Experience

• Degree in Computer Science, Engineering, or a related field
• 2-3 years’ experience in full stack or front-end development
• Prior experience working on data-driven or real-time UI applications preferred
• Exposure to Agile delivery environments

Key Attributes

• Proactive and self-motivated, with the ability to work independently
• Comfortable working in a fast-paced, evolving environment
• Strong attention to detail and quality
• Effective problem solver with a pragmatic approach
• Collaborative team player with strong communication skills

IntaPeople are looking for a Full Stack PHP Developer to join our Cardiff based client on an inital 3 month contract basis. Travel will be needed on an Adhoc basis.

Responsibilities

• Developing and delivering features across the full stack (including use of modern PHP frameworks, front-end frameworks, and other tools)
• Closely supporting the effective design of new features and solutions
• Contributing to the quality assurance effort, particularly through use of test automation tools (such as Cypress and Postman) and Continuous Integration tools (such as GitLab and GitHub)
• Providing technical input and guidance to our cross-functional agile product development teams
• Working closely with the product owner and project management to deliver timely products and enhancements.

Requirements

• Capable and enthusiastic technologist, able to demonstrate a broad technical knowledge in PHP development using modern PHP frameworks (Laravel or similar)
• Working experience in an Agile environment
• Strong experience with Linux
• Good understanding of CI/CD
• Experience working with and optimising use of relational databases such as MySQL or similar
• Experience of front-end frameworks, such as Vuejs or React

If you are interested in the role please click APPLY now.

Role: React Front End Developer
Type: Contracts (8 Months)
Location: London, UK
Working Model: Fully Onsite Initially (5 Days in Office)

The Must-Haves:

• Advanced proficiency in React.js.
• Ability to act as a subject matter expert, manage the team to perform effectively, and take responsibility for team decisions.
• Proven experience developing custom software solutions using modern frameworks and agile practices.
• Capability to take full ownership of specific software components and ensure their performance meets project standards.
• Strong problem-solving skills to provide solutions within your immediate team and across multiple cross-functional teams

This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. Com

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Front End Developer (SC Cleared)

Location: Ipswich (100% On-site)

Contract Length: 6 Months

Security Clearance: Active SC Clearance Required (Immediate Start)

The Role

We are seeking a highly skilled Front End Developer with a strong software engineering background to lead the modernization of our application suite at Adastral Park. This is a hands-on role where you will be responsible for transitioning existing applications to a TypeScript and React baseline, utilizing our established internal boilerplate to drive security, performance, and development efficiencies.

As a key contributor in an Agile environment, you won’t just be coding; you will be the bridge between technical execution and product vision-capturing requirements directly from Product Owners and translating them into high-quality, version-controlled software.

Core Objectives

• Modernization: Align legacy applications with our current TypeScript/React baseline and internal standards.
• Security & Efficiency: Enhance application security protocols and streamline front-end performance.
• End-to-End Delivery: Manage the full development lifecycle, from requirement capture in JIRA to final stakeholder demos.
• Agile Leadership: Drive sprint ceremonies and maintain transparency through regular progress demonstrations.

Key Responsibilities

• Technical Audit: Assess and document the current state of existing applications to identify rewrite constraints.
• Requirement Engineering: Collaborate with Product Owners to define features and break them down into actionable JIRA stories.
• Development: Execute the re-write of applications using React and TypeScript, ensuring strict adherence to version control and coding standards.
• Collaboration: Participate in all Agile ceremonies (stand-ups, retrospectives, and planning) and lead demos for stakeholders.
• Documentation: Ensure all technical documentation is updated to reflect the new architecture and deployment workflows.

Technical Requirements

• Core Stack: Expert-level proficiency in React and TypeScript.
• Engineering Excellence: A deep background in software engineering principles (DRY, SOLID, Modular Design).
• Tooling: Experience with JIRA for task management and Git for version control.
• Standardization: Proven experience working with “Boilerplate” architectures to ensure consistency across large-scale projects.
• Process: Strong familiarity with Agile methodologies and the full SDLC.

Mandatory Criteria

• Security Clearance: You must hold current and active SC Clearance due to the nature of the site and data.
• On-site Presence: This role requires being on-site 5 days a week at Ipswich. No remote/hybrid options are available for this initial 6-month term.
• Availability: Immediate start preferred.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Role Overview We are seeking a skilled Full-Stack Software Engineer with exclusive expertise in React for frontend development and Python for backend development. The role focuses on building scalable, secure, and high-performance web applications while working closely with product, design, and platform teams. Key Responsibilities Frontend (React) Design and develop responsive, modular, and accessible user interfaces using React Build reusable React components, shared libraries, and frontend design systems Manage complex client-side state and optimize frontend performance Integrate frontend applications with REST APIs Ensure high standards of UX, accessibility, and cross-browser compatibility Backend (Python) Design and implement scalable backend services using Python Develop RESTful APIs using Python frameworks such as Django / FastAPI / Flask Handle authentication, authorization, and secure data flows Work with relational and/or NoSQL databases Implement logging, monitoring, and error-handling mechanisms to ensure reliability System & Collaboration Collaborate with cross-functional teams on requirements, design, and architecture Write clean, testable, maintainable, and well-documented code Participate in code reviews and CI/CD pipelines Support production systems and troubleshoot issues as needed

I am recruiting for an experienced Full Stack Engineer to work on a hybrid basis - 3 days in London, 2 days remote. The role falls inside IR35 so you will be required to work through an umbrella company for the duration of the contract. I am seeking a Senior Full-Stack Engineer with several years of experience who operates as a hands-on, independent contributor and takes full ownership of building, scaling, and running production systems. This role is designed for engineers who have built and operated large-scale systems end-to-end, not those with superficial exposure or purely design-focused experience. Candidates must have strong experience of Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern Front End frameworks. Hands on expertise in API design and development (REST/JSON), including versioning and backward compatibility. Experience with UI testing, component testing, and Front End build tooling. Experience in CI/CD pipelines, GitOps workflows, A/B testing strategies and also automating the workflows and repeatable tasks. Please apply ASAP for full role details.

Job Title: Senior Java/Python Full Stack Developer
Location: Glasgow (x 5 days in office)
Salary/Rate: £410 a day (Inside IR35)
Start Date: April 2026
Job Type: Contract - 6 months

Job Overview:

We are seeking an experienced Senior Java/Python Full Stack Developer to design, develop, and maintain scalable enterprise applications. The successful candidate will play a key role in delivering high-quality solutions usingJava, Python, Spring Boot, AWS, and modern Front End technologies.

You will collaborate with cross-functional teams to build robust, high-performance applications while ensuring code quality, scalability, and security across the development life cycle.

Key Responsibilities

• Develop high-quality software design and architecture using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, Python and MySQL.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Some hands on knowledge on React JS, Redux, HTML5, CSS3

• Some exposure to Front End testing tools like Jest

• Ensure the performance, quality, and responsiveness of applications.

• Identify and correct bottlenecks and fix bugs.

• Maintain code quality, organization, and automation.

• Implement security and data protection measures.

• Conduct software analysis, programming, testing, and debugging.

• Oversee the development of documentation throughout the software development life cycle.

• Provide technical guidance and support to team members.

• Stay up-to-date with emerging technologies and industry trends.

• Optimize applications for maximum speed and scalability.

• Participate in code reviews to maintain high code quality standards.

• Contribute to continuous improvement by investigating alternatives and technologies.

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.

Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

(Apply online only) per day (Inside IR35)
6 months
Location - Hybrid - 1-2 days per week on site in London

Requirements

• React Native
• Node
• Take ownership of things like features and technical improvements and must be able to express ideas cleanly and concisely.

Desirables

• TanStack Query
• Nest.js
• Integration Testing experience - Even better if this is Detox or Appium
• System/Service Design

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited (“ARM”). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

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!

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.

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