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Full Stack Engineer Jobs in London
Overview
Looking for Full Stack Engineer jobs in London? Discover top IT opportunities on Haystack, your go-to job board for skilled developers. Whether you specialize in front-end, back-end, or both, find the latest Full Stack Engineer roles in London’s thriving tech scene and boost your career today.
Node, TypeScript, React Developer
The Portfolio Group
London
Remote or hybrid
Senior
ÂŁ70,000
RECENTLY POSTED
+1

We’re looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You’ll be instrumental in our transition away from Drupal as we modernise and scale our platform.

Tech Stack:

At least 6-8 years commercial experience with Node, JavaScript or TypeScript
Exposure of Laravel and/or Python (Django or Flask a plus)
Familiarity with Drupal and some knowledge of modern front-end frameworks (React, Vue, etc.)

What You’ll Do:

Build scalable applications using modern frameworks and clean architecture
Contribute to backend services and APIs (Python or Laravel-based)
Help re-platform and migrate to a modern stack
Collaborate cross-functionally with UX, Product, and DevOps

What We Offer:

A supportive environment that encourages professional growth and continuous learning.
An inclusive, collaborative culture within one of the UK’s leading business services providers.
A competitive salary and benefits package.

49904MS

INDLON

Portfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy

Senior Salesforce Developer - Service Could - Experience Cloud - Marketing Cloud - Apex - LWC
Nexere Consulting Limited
London
Hybrid
Senior
ÂŁ80,000 - ÂŁ95,000
RECENTLY POSTED
  • Role - Senior Salesforce Developer
  • Salary - up to ÂŁ90,000 + Benefits
  • Location - London Bridge
  • Working Situation - Hybrid (2x per week in the office)

My client who are leaders in their field are looking for a Senior Salesforce Developer who will be responsible for hands-on development, platform optimisation, and delivering scalable solutions across Service Cloud and Marketing Cloud. The role leads Apex development, configuration, and CI/CD processes, while ensuring platform stability, assessing release impacts, resolving BAU issues, and driving continuous improvement.

Key Responsibilities

Salesforce Development

  • Design and deliver scalable, high-performance Salesforce solutions.
  • Build and configure functionality across Service Cloud and Marketing Cloud.
  • Write clean Apex code and use declarative tools to meet business needs.
  • Complete unit testing, documentation, and support system testing.

Collaboration & Stakeholder Engagement

  • Work with Product Owners and Business Analysts to translate requirements into effective solutions.
  • Participate in Agile ceremonies (sprint planning, grooming, retros).
  • Advise teams on Salesforce capabilities, limitations, and best practices.

Platform Management & BAU

  • Support ongoing maintenance and optimisation of the Salesforce platform.
  • Troubleshoot, resolve, and document issues for both projects and BAU.

Essential Skills & Experience

  • Extensive hands-on Salesforce development experience in complex environments.
  • Strong skills in Apex, LWC, SOQL, REST/SOAP APIs, and Salesforce configuration.
  • Solid understanding of Service Cloud and Experience Cloud (essential); Marketing Cloud and Sales Cloud (desirable).
  • Experience with CI/CD, Git/GitHub, and structured deployment processes.
  • Strong grasp of Salesforce data architecture, platform limits, and security
Software Developer
Hunter Bond
London
In office
Mid - Senior
ÂŁ350,000
RECENTLY POSTED

Role: Software Developer

Salary: ÂŁ350,000 T/C

Location: London

Client: Top Fintech

An exciting opportunity has arisen for a highly skilled C++ Developer with excellent technical and communication abilities to join a successful and fast-paced tech-driven team within the finance sector.

You’ll be working alongside top-tier technologists with backgrounds from some of the most respected tech and trading environments, collaborating on cutting-edge systems that push the boundaries of performance and scalability in financial software.

This role offers the chance to contribute to the development of one of the most robust and scalable data platforms in the industry. You’ll have end-to-end involvement in the software development life cycle, with real influence over the direction and implementation of key technical solutions.

Key Requirements:

  • Strong commercial experience with C++ and Python (2+ years)
  • Proven experience building and consuming RESTful microservices
  • Experience handling large-scale or high-throughput data systems
  • Prior experience in the finance sector (preferred but not essential)
  • Solid academic background, ideally in Computer Science or a related discipline from a top University

If you’re a talented software developer ready to make a meaningful impact in a technically sophisticated environment, apply now - interviews are taking place immediately.

Feel free to get in touch directly with any questions!

Senior Cloud Engineer - AWS, Azure, Terraform, Developer Tooling
Morson Edge
London
Remote or hybrid
Senior
ÂŁ80,000 - ÂŁ85,000
RECENTLY POSTED

Senior Cloud Engineer - AWS, Azure, Terraform, Developer Tooling, Developer Experience, DevOps, CI/CD, Retail Banking, Digital Banking, Platform Engineering, Product Management A leading UK Digital Banking organisation are seeking a talented individual experienced in building and maintaining cloud platforms and developer tooling to join their inhouse Cloud and DevEx team, who provide cloud/technical solutions as products to the business and wider engineering teams. The existing cloud platform is built exclusively on AWS, but with a plan to move to a hybrid setup with Azure and so you will need to bring experience of both, working with the team through the adoption & setup of Azure. You will also ideally come from a software engineering background demonstrating expertise across Developer Experience more broadly, as the platform is responsible for all software engineering CI/CD, their GitHub repository and other services. In addition to this, the team are also responsible for the development of core products that can be utilised across the business, such as a standardised data ingestion and distribution exchange for engaging with 3rd party data providers. Finally, you will also be a proponent of agile practises and clean, well-documented engineering, supporting auditability and efficient delivery of software into the cloud estate.

Backend Software Engineer (JuniorMid Level) Programmatic
Mobkoi
City of London
Hybrid
Junior - Mid
Private salary
RECENTLY POSTED

Location: Hybrid UK
Contract Type:Permanent
Hours: Full time
Salary: Competitive

COMPANY OVERVIEW

MOBKOI is a fast-growing mobile company headquartered in London, with offices across central Europe, US and Asia. We use the latest in mobile ad technology to help premium brands effectively reach and engage with their clients’ audiences.

Bringing to market the most selective site list of premium global and local publishers enabling brands to be selective of where their ads are going to run and thus ensuring brand safety. MOBKOI prides itself on offering full transparency, bespoke creative builds and local market coordination. We are part of The Brandtech Group, formerly known as You & Mr Jones, working with partners developing the best technology across the globe.

ROLE OVERVIEW

As a Backend Software Engineer (JuniorMid Level) Programmatic, you will contribute to the development and evolution of MOBKOIs programmatic advertising platform. You will work closely with experienced engineers on backend systems that power real-time bidding (RTB), campaign delivery, and large-scale integrations with SSPs and DSPs.

This role is well suited to engineers early in their career who want to deepen their expertise in distributed systems, low-latency services, and cloud-based infrastructure, while gaining exposure to the programmatic advertising ecosystem. You will be supported through mentorship, code reviews, and progressive ownership of backend components.

RESPONSIBILITIES

Contribute to the development and improvement of MOBKOIs programmatic backend systems, including components of the real-time bidding (RTB) pipeline.
Support the design and implementation of scalable, reliable, and high-performance services handling large volumes of traffic.
Work alongside senior engineers to help evolve system architecture while balancing performance, cost efficiency, and reliability.
Assist in monitoring system performance and contribute to initiatives that optimise infrastructure usage and operational cost.
Participate in diagnosing and resolving issues related to distributed systems, including latency, availability, and scaling challenges.
Implement backend components following best practices in fault tolerance, load balancing, and resilient design.
Develop an understanding of the programmatic advertising ecosystem, including SSPs, DSPs, bidding flows, and ad exchanges.
Contribute to discussions around technology selection, tooling, and build-vs-buy decisions.
Collaborate with product, data, and business teams to ensure technical solutions align with business needs.
Actively participate in code reviews, technical discussions, and continuous improvement initiatives.

KEY SKILLS & COMPETENCIES

Experience in backend software development, gained through a first professional role, internship, or apprenticeship.
Solid engineering fundamentals with Go (or another backend language with a strong willingness to learn Go).
Interest in or exposure to distributed systems and high-traffic environments.
Understanding of core concepts around scalability, reliability, and high availability.
Familiarity with cloud platforms such as AWS or GCP.
Awareness of cost-efficient engineering practices and infrastructure optimisation.
Curiosity about the programmatic advertising landscape and how technical systems support business outcomes.
Strong collaboration skills and the ability to communicate clearly within a cross-functional team.

BEHAVIOURS

This role operates in a fast-moving, high-standards environment and requires someone who is motivated to learn, take ownership, and deliver quality work. The role holder is expected to manage their time effectively, adapt to change, and contribute positively to team and business outcomes.

The role offers autonomy and is suited to someone who is comfortable balancing independent work with cross-functional collaboration.

What were looking for:

Motivation to contribute to the growth and success of the business
A proactive, adaptable mindset with the ability to learn quickly
Strong ownership and accountability for outcomes
Clear and professional communication with a range of stakeholders

You may also have experience in the following: Backend Software Engineer, Junior Backend Engineer, Mid-Level Backend Developer, Go Developer (Golang Engineer), Software Engineer Backend, Programmatic Engineer, AdTech Engineer, RTB Engineer (Real-Time Bidding Engineer), Distributed Systems Engineer, Cloud Backend Engineer (AWS / GCP), Platform Engineer AdTech, API Developer (Backend), High-Performance Systems Engineer, Programmatic Advertising Developer, Software Engineer AdTech

REF-226 991

Applications Developer
Ryder Reid Legal Ltd
London
In office
Mid
Private salary
RECENTLY POSTED
+2

Applications Developer - London

Are you passionate about building innovative applications and delivering cutting-edge solutions? We are working with a leading global law firm to recruit an Applications Developer to join their dynamic technology team in London.

This is an exciting opportunity to work on high-performance web, mobile, and client-server applications, as well as maintain and enhance existing systems. The role also involves managing and developing SharePoint environments (on-premise and cloud), ensuring optimal performance, security, and scalability.

Key Responsibilities

  • Design, develop, and maintain custom ASP.NET MVC web applications and SharePoint solutions.
  • Implement responsive, user-friendly interfaces using frameworks such as React, Angular, Bootstrap, and jQuery.
  • Develop and optimize SQL databases to support application needs.
  • Utilize low-code platforms like PowerApps and Power Automate to streamline workflows.
  • Create and manage reports using SSRS and Power BI.
  • Provide technical support, troubleshoot issues, and ensure system reliability.
  • Collaborate with cross-functional teams to deliver solutions aligned with business goals.

What They Are Looking For

  • Degree in Computer Science, Information Systems, or related field.
  • Minimum 3 years’ experience in software development, with strong skills in SharePoint, SQL Server, and the .NET environment.
  • Proficiency in C#, ASP.NET MVC/Core, and web API development.
  • Experience with front-end frameworks and modern development practices.
  • Strong problem-solving skills and ability to manage multiple projects.
  • Excellent communication and collaboration skills.

Why Apply?

This is a fantastic opportunity to join a prestigious global organization that values innovation and offers a collaborative, forward-thinking environment. You’ll work on impactful projects and have the chance to shape technology solutions for a world-class firm.

Due to the high volume of applications, we are not able to respond to all enquiries. If you have not received a response within 72 hours, please assume you have not been shortlisted at this stage, however thank you for taking the time to apply.

Ryder Reid Legal is a recruitment specialist. For over thirty years we’ve been connecting legal talent with many of the leading law firms in London and internationally. Follow our LinkedIn page for the latest vacancies.

https://company/ryder-reid-legal

Ruby on Rails Engineer
Canada Life UK
Multiple locations
Remote or hybrid
Junior - Mid
Private salary
RECENTLY POSTED
+4

Canada Life UK has helped individuals, families and businesses secure their financial futures for over 120 years. We are evolving into a more modern, customer-centric, and engineering-led organisation. As we modernise our IT estate and shifting our focus towards cloud, SaaS/PaaS, and product-centric delivery models, we are creating engineering excellence and empowered teams.

Job Purpose

We are looking for Ruby on Rails Software Engineers to join our Home Finance Product Engineering team, who look after the systems that power our mortgage origination and servicing capabilities.

Why join us?

  • Shape the future of Home Finance - Play a pivotal role in evolving our bespoke Ruby on Rails-based mortgage origination and servicing platform, building modern, resilient and scalable solutions critical to our Home Finance business.
  • True empowerment and autonomy - You will work in a stream aligned product team with real influence over how we design, build and operate our applications. You’ll collaborate closely with your Engineering Manager, Product Owner and fellow engineers to deliver outcomes that matter.
  • Modern engineering focus - Design, build, test, deploy and support software using agile and DevOps practices. You’ll contribute to automation, CI/CD pipelines and continuous improvement of our route to production.

Key Duties/Responsibilities

  • Design, build, test, deploy and support features on our Ruby on Rails, MySQL and JavaScript based mortgage platform.
  • Participate fully in development activities - writing code, reviewing code and releasing changes into production within your product team.
  • Work closely with your Product Owner, Engineering Manager and engineering colleagues to deliver secure, stable and scalable solutions that support Home Finance operations and customer outcomes.
  • Apply agile and DevOps practices, balancing build and run responsibilities and improving reliability through automation and better engineering practices.
  • Build, configure and support automated CI/CD pipelines across all environments up to and including production.
  • Ensure deliverables meet Canada Life engineering standards and best practice, measured through OKRs, KRIs and engineering guardrails.
  • Contribute to risk management, security, monitoring and troubleshooting in line with company, regulatory and legal requirements.
  • Take ownership of your learning path, continuously building skills that benefit your team and platforms.

Skills, Knowledge and Experience

Technical

  • Ruby on Rails experience building MVC applications and APIs.
  • Relational SQL databases (e.g. MySQL), including schema design, performance considerations and effective querying.
  • Strong software engineering fundamentals including design, analysis, testing, code quality and secure coding.
  • Experience designing, building, testing, deploying and supporting software using agile and DevOps practices.
  • Familiarity with CI/CD tooling (e.g. Azure DevOps, Jenkins, GitLab CI/CD).
  • Understanding of cloud platforms, particularly Azure; experience with GCP is also valuable.
  • Awareness of security practices, monitoring and troubleshooting in production environments.

Desirable

  • Experience with React or other modern JavaScript frameworks.
  • Exposure to containerisation and orchestration (e.g. Docker, Kubernetes).
  • Experience in regulated financial services or mortgage origination/administration systems.

How you work

  • Strong teamwork, communication and problem solving skills, able to collaborate across cross functional teams.
  • Comfortable working within an agile development methodology and contributing to continuous improvement.
  • Ability to plan and organise your work, prioritising effectively and taking responsibility for quality and integrity.
  • Good judgement in problem solving and decision-making, able to identify root causes and propose pragmatic solutions.
  • A mindset of continuous learning and staying up to date with evolving technologies and industry trends.

Benefits of working at Canada Life

We believe in recognising and rewarding our people, so we offer a competitive salary and benefits package that’s regularly reviewed. As a Canada Life UK colleague, you’ll receive a competitive salary and comprehensive reward package including a generous pension and bonus scheme, along with, income protection, private medical insurance and life assurance. We have a fantastic number of other benefits and support services as well as regular personal and professional development.

How we work at Canada Life

Our culture is unique and incredibly important to us. We care about doing the right thing for our people, customers and community and helping others to build better futures. Our blueprint behaviours shape and influence how we work, and are central to the relationships we have with others. Every day we are encouraged to be more curious, own the outcome, face into things together and find a way forward.

We want colleagues to have rewarding careers with us so we invest in the development of our people, technology and workplaces. That’s why we offer a range of training, flexible working and opportunities to grow and develop.

Diversity and inclusion

Building an inclusive workplace with a diverse workforce where everyone can feel they belong and achieve their potential regardless of gender, ethnicity or any other characteristic is a key commitment for us. We are proud of the progress we’re making in DEI, and we continue for it to be a significant focus.

“At Canada Life we believe in the power of great people from different backgrounds, experiences and perspectives coming together to build better futures. Emerging talent is crucial to our growth and creating an environment that continues to inspire us all.” Nick Harding, Chief People Officer, Canada Life UK

We appreciate that everyone has different work and life responsibilities. We’re happy to discuss flexible working arrangements, including part time, for any of our roles should this be a requirement for you.

FS Engineer
Bloc Recruitment
London
In office
Mid - Senior
ÂŁ100,000
RECENTLY POSTED

x12 Fullstack Engineer (Product-Focused) | (NextJS, NestJS, TypeScript)
Salary up to ÂŁ140k + Equity
London Based

This isn’t a ticket-taking role. You’ll own ideas end-to-end, from customer conversations (yes, including on-site visits) to shipping production-ready features that solve real enterprise pain points.

What You’ll Do

  • Take ownership of high-impact ideas and ship them fast
  • Talk directly to customers and translate problems into product
  • Work across the stack — architecture → backend → UI
  • Make smart trade-offs to maximise impact
  • Build, test, iterate in tight 6-week cycles
  • Help shape new paradigms for AI-powered software in industrial inspection

What We’re Looking For

  • 2-8 years shipping fullstack features in real-world products
  • Experience in high-growth environments
  • Founder or 0→1 experience (bonus if you’ve built something revenue-generating)
  • Strong product instincts and a bias toward action
  • Stack: NextJS, NestJS, TypeScript

We have more high-impact ideas than we have bandwidth. We’re looking for someone who wants to own them.

If you’re excited by autonomy, speed, and building category-defining AI software let’s talk.

Software Developer
Reed Technology
City of London
Hybrid
Junior - Mid
ÂŁ45,000
RECENTLY POSTED
+2

Annual Salary: ÂŁ40k - ÂŁ45k, dependent on experience

Location: Cannon Street, London

Job Type: Permanent - 4 days a week onsite

Start Date: Immediately

A new exciting permanent opportunity, for a Software Developer to join an exciting financial bridging loan, property lender organisation in an exciting phase of growth and are now seeking to develop and implement a highly automated lending process. They are currently building an in-house, bespoke software to execute various day-to-day lending analyses and processes. This software is expected to significantly enhance their operating efficiency and scalability, contributing to future growth.

They are now looking to accelerate the development of this software by adding a Software Developer to their current team of 3. This role is backend-focused but will require frontend skills. You will have the opportunity to work closely with key stakeholders in the company.

Day-to-day of the role:

Develop and implement frontend and backend components for bespoke software.

Collaborate with co-founders and other team members to define software requirements and take the lead on operational and technical projects.

Utilise React and Next.js for modern web application development.

Use Node.js and related tools for effective backend development.

Design and implement effective UIs with a focus on user experience, using TypeScript, JavaScript, and CSS.

Integrate frontend and backend aspects of the application using RESTful APIs.

Participate in continuous integration and deployment (CI/CD) pipelines.

Ensure software quality by incorporating best practices in testing, including TDD.

Required Skills & Qualifications:

Strong experience with React and Next.js.

Proficiency in Node.js and related web development tools.

Proven ability in UI development and design, focusing on clean, intuitive user interfaces.

Proficiency in TypeScript and JavaScript.

Solid understanding of CSS, styling libraries, and modern styling approaches.

Working knowledge of RESTful APIs and frontend-backend integration.

Experience with CI/CD pipelines.

Understanding of testing practices, including TDD.

Nice to have:

Familiarity with cloud platforms such as AWS, GCP, or Azure.

Experience with Python/Fast API for backend development.

Experience using AI-assisted development tools.

Awareness or exposure to Model Context Protocol.

Experience working with Figma or collaborating from design files.

Exposure to AI agents or agent-based workflows.

Benefits:

Competitive salary based on experience.

Opportunity to work on transformative technology in a dynamic environment.

Exposure to critical and strategic projects.

Professional growth and development opportunities.

To apply for this Software Developer position, please submit your CV to be immediately considered for this role.

TPBN1_UKTJ

Software Developer
Experis
City of London
Fully remote
Junior - Mid
ÂŁ600/day - ÂŁ601/day
RECENTLY POSTED
+6

6-12 months London - Remote ÂŁ600 per day inside IR35 - umbrella only Overview Our developers work within multidisciplinary Agile teams to deliver secure, robust, and user centred digital services. The role involves building high quality software, contributing to technical design, and continually improving codebases to meet service and safety requirements. Soft Skills & Behaviours: Clear and confident communicator , able to work with designers, product teams, testers, engineers, and external partners. Highly collaborative , supporting team success and contributing to shared goals. Positive, engaged, and proactive , bringing energy to team ceremonies and wider delivery activities. Comfortable with change , able to work through evolving requirements or priorities. Keen to learn and share knowledge , contributing to code reviews, pair?programming, and community?of?practice activities. Experienced working within Agile delivery , contributing to stand-ups, planning, reviews, retrospectives, and show?and?tell sessions. Delivers with quality , making sensible trade-offs and managing technical debt thoughtfully. Stays informed about modern technologies and practices , promoting proportionate adoption of tools that add value. Technical Skills & Responsibilities: Intermediate to advanced practical experience with: React and TypeScript Python AWS services i.e. Athena/Glue, DynamoDB, ECS, S3, Lambda, SQS, Step Function, etc Automated testing frameworks for Python and JavaScript Terraform for infrastructure-as-code Agile delivery workflows Tooling experience: Git Jira Confluence Desirable (Nice to Have): Cypress GitHub Actions Splunk Other Requirements: Eligible for BPSS and SC clearance , due to interaction with sensitive or protected systems. Previous NHS experience is desirable , including understanding of NHS digital services or national systems. Exposure to digital product development and live?service environments is advantageous. TPBN1\_UKTJ

Full Stack Software Engineer React Typescript Java
Huxley Associates
City of London
Hybrid
Mid - Senior
ÂŁ50,000 - ÂŁ130,000
RECENTLY POSTED

Full Stack Software Engineer React Typescript Java Banking London

This is a new and exclusive opportunity for a Full Stack Software Engineer who is primarily front office focused with React (75%) and Java (25%) to join this thriving front office derivatives team in this investment bank

Role details

Title: Full Stack Software Engineer
Technical focus - React (75%) and Java (25%)
Employer: front office banking derivatives
Permanent role salary ÂŁ85- ÂŁ125,000 plus bonus and pension
Location: London City and home working hybrid 50/50%
Technical stack: primarily Front end React/ typescript node.JS focused with a java base

This is an VP Banking front office Full Stack Software Engineer which is primarily GUI focused on React, 70% and some back end with Java 30%

This is a front office derivatives investment bank, and you will be working with international teams on big front office trading projects

This role will be interviewed in December, and offer out in January

Position Description

Derivatives Front Office Full Stack Application

We’re looking for a Software Engineer for our front office suite of application supporting trading, marketing, trade analysis and research.

You will be a Hands-on Full Stack developer using React as front end and Java 21 as the primary language for back end

Work with other teams including Front office risk teams, trading desk, Quants, and DevOps to build state of the art front to back pricing and risk solution

This is an interesting role in a thriving area of the bank

For more information, and the chance to be considered, please do send through a CV- Good luck

React and java and full and stack and (bank or derivatives)

To find out more about Huxley, please visit

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales

Junior C# Developer - SC Cleared
VIQU IT
London
Hybrid
Junior
ÂŁ300/day - ÂŁ350/day
RECENTLY POSTED

Junior C# Developer 6-month contract London SC Cleared Inside IR35

My Financial Services customer is looking for a Junior C# Developer, that will play a key role in triaging and resolving technical queries during the development of the Synchronisation Lab to act as a platform for industry to demonstrate use cases and understand business models for synchronisation. The Junior C# Developer will proactively engage with Product and development teams to ensure timely responses to queries.

You ll be joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure

Junior C# Developer Skills & Experience required:
• Active SC Clearance.
• Strong hands-on experience with C#, .NET.
• Experience with Agile ways of working.
• Experience with a Microsoft Azure based environment.
• Experience in the Financial Services sector.
• High level support with incident response and troubleshooting.
• Eagerness to learn and improve interpersonal skills.

Junior C# Developer Key Responsibilities:
• Triaging and resolving technical queries.
• Build and maintain database structures and queries using SQL.
• Support the enhancement of synchronisation models based on participant feedback.
• Collaborate with developers and the production team.
• Delivering the technical release of later synchro models.

You must be able to work onsite 2 days per week in London.

Apply now to speak with VIQU IT in confidence. Or reach out to Louise Davies via the VIQU IT website.

For more exciting roles and opportunities like this, please follow us on IT Recruitment.

Software Developer
JAM Recruitment Ltd
London
In office
Mid - Senior
ÂŁ595/day
RECENTLY POSTED
+3

Location: London

Day Rate: 595 per day (Umbrella, inside IR35, based on an 8-hour day)

Clearance: Live & transferrable SC required, ideally Home Office SC

Start Date: Subject to SC transfer

We’re looking for a full-stack Java Software Engineer to join a fast-growing team delivering high-impact solutions for UK Government and Law Enforcement sectors. You’ll work in agile, multi-disciplinary teams solving complex problems with cutting-edge technologies, while contributing to software solutions you can be proud of.

What You’ll Do

  • Design, develop, and deliver high-quality software solutions in Java, React, PostGres, Kafka, ElasticSearch, AWS, Ansible, REST, Docker, API Gateways, JavaScript, Mongo, and SQL.
  • Work hands-on across the full stack while ensuring delivery pipelines, NFRs, and industry best practices are met.
  • Collaborate with enterprise teams in an agile environment, shaping technical solutions and mentoring peers.

What We’re Looking For

  • Proven experience as a full-stack Java developer, with hands-on knowledge of modern frameworks, databases, APIs, and cloud services.
  • Strong understanding of agile delivery practices and enterprise software development pipelines.
  • A proactive, collaborative mindset and a passion for delivering innovative, high-quality software.
  • Live & transferrable SC clearance essential (Home Office SC preferred).

If you’re an SC Cleared Software Developer looking for your next contract within a secure, cutting-edge programme, I’d be keen to speak with you.

Apply now or message me directly for a confidential discussion.

Software Developer
Experis IT
London
Fully remote
Junior - Mid
ÂŁ600/day
RECENTLY POSTED
+2

6-12 months
London - Remote
ÂŁ600 per day inside IR35 - umbrella only

Overview
Our developers work within multidisciplinary Agile teams to deliver secure, robust, and user centred digital services. The role involves building high quality software, contributing to technical design, and continually improving codebases to meet service and safety requirements.

Soft Skills & Behaviours:
Clear and confident communicator, able to work with designers, product teams, testers, engineers, and external partners.

  • Highly collaborative, supporting team success and contributing to shared goals.
  • Positive, engaged, and proactive, bringing energy to team ceremonies and wider delivery activities.
  • Comfortable with change, able to work through evolving requirements or priorities.
  • Keen to learn and share knowledge, contributing to code reviews, pair programming, and community of practice activities.
  • Experienced working within Agile delivery, contributing to stand-ups, planning, reviews, retrospectives, and show and tell sessions.
  • Delivers with quality, making sensible trade-offs and managing technical debt thoughtfully.
  • Stays informed about modern technologies and practices, promoting proportionate adoption of tools that add value.

Technical Skills & Responsibilities:
Intermediate to advanced practical experience with:

  • React and TypeScript
  • Python
  • AWS services ie Athena/Glue, DynamoDB, ECS, S3, Lambda, SQS, Step Function, etc
  • Automated testing frameworks for Python and JavaScript
  • Terraform for infrastructure-as-code
  • Agile delivery workflows

Tooling experience:

  • Git
  • Jira
  • Confluence

Desirable (Nice to Have):

  • Cypress
  • GitHub Actions
  • Splunk

Other Requirements:

  • Eligible for BPSS and SC clearance, due to interaction with sensitive or protected systems.
  • Previous NHS experience is desirable, including understanding of NHS digital services or national systems.
  • Exposure to digital product development and live’service environments is advantageous.
Software Developer
Reed Technology
London
Hybrid
Mid
ÂŁ40,000 - ÂŁ45,000
+2
  • Annual Salary: 40k - 45k, dependent on experience
  • Location: Cannon Street, London
  • Job Type: Permanent - 4 days a week onsite
  • Start Date: Immediately

A new exciting permanent opportunity, for a Software Developer to join an exciting financial bridging loan, property lender organisation in an exciting phase of growth and are now seeking to develop and implement a highly automated lending process. They are currently building an in-house, bespoke software to execute various day-to-day lending analyses and processes. This software is expected to significantly enhance their operating efficiency and scalability, contributing to future growth.

They are now looking to accelerate the development of this software by adding a Software Developer to their current team of 3. This role is backend-focused but will require frontend skills. You will have the opportunity to work closely with key stakeholders in the company.

Day-to-day of the role:

  • Develop and implement frontend and backend components for bespoke software.
  • Collaborate with co-founders and other team members to define software requirements and take the lead on operational and technical projects.
  • Utilise React and Next.js for modern web application development.
  • Use Node.js and related tools for effective backend development.
  • Design and implement effective UIs with a focus on user experience, using TypeScript, JavaScript, and CSS.
  • Integrate frontend and backend aspects of the application using RESTful APIs.
  • Participate in continuous integration and deployment (CI/CD) pipelines.
  • Ensure software quality by incorporating best practices in testing, including TDD.

Required Skills & Qualifications:

  • Strong experience with React and Next.js.
  • Proficiency in Node.js and related web development tools.
  • Proven ability in UI development and design, focusing on clean, intuitive user interfaces.
  • Proficiency in TypeScript and JavaScript.
  • Solid understanding of CSS, styling libraries, and modern styling approaches.
  • Working knowledge of RESTful APIs and frontend-backend integration.
  • Experience with CI/CD pipelines.
  • Understanding of testing practices, including TDD.

Nice to have:

  • Familiarity with cloud platforms such as AWS, GCP, or Azure.
  • Experience with Python/Fast API for backend development.
  • Experience using AI-assisted development tools.
  • Awareness or exposure to Model Context Protocol.
  • Experience working with Figma or collaborating from design files.
  • Exposure to AI agents or agent-based workflows.

Benefits:

  • Competitive salary based on experience.
  • Opportunity to work on transformative technology in a dynamic environment.
  • Exposure to critical and strategic projects.
  • Professional growth and development opportunities.

To apply for this Software Developer position, please submit your CV to be immediately considered for this role.

C# .net software developer Investment banking
Huxley Associates
London
In office
Mid - Senior
ÂŁ40,000 - ÂŁ100,000

Role details

  • Title: C# .net software developer
  • Employer: Investment banking
  • Permanent role Salary range: 75k-95k
  • Role focus: translation from one language to another
  • Role requirements: C#.NET Development, Fixed income/ derivatives or any banking is beneficial

This is a new and exclusive Software Engineer - C# / .Net developer to join this investment bank as they expand their software development team. This role is focused on translating one file or language into something the current system can use. You will need to use your software development skills, to understand what a file needs, testing your solution in C#.Net and ensuring it has been translated correctly

As the C# .net software developer, you will be leading on fixed income/ derivative projects within this Investment banking.

Qualifications and Skills

  • Be well-versed in C#/.Net and/or C++ and have an active interest in other computing technology and tools.
  • Familiarity with Fixed Income/ Derivatives is a big plus.

For more information and the chance to be considered, please do send through a CV good luck

To find out more about Huxley, please visit (url removed)

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Salesforce Engineer
Stepstone UK
London
Hybrid
Mid - Senior
Private salary

At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring.

Join our team of 3,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform.

Job Description

We have an opportunity for a Salesforce Engineer to join our thriving development community at Stepstone. You will be responsible for developing solutions that support our global Commercial strategy.

Working in the CRM function, you will be working with our internal stakeholders and product managers to understand their needs and work with your colleagues to create innovative solutions to drive our business systems forward.

You will play a vital role as we reimagine the labour market to make it work for everybody.

Your responsibilities:

  • Apex, Aura/LWC, Visualforce development and tools such as Salesforce, Lightning (Aura &Web Component)
  • Use Salesforce APIs to integrate with other systems used in the organization
  • Adhere to Salesforce best practices, maintain code documentation, and write / maintain test classes for all custom development and assist/take ownership with each release cycle to implement and deploy new/updates to existing applications and code
  • Drive initiatives, help the team deliver, translate non technical jargon into technical tasks and be responsible for having discussion with business stakeholders and product
  • Work with the following tech/tools/methodology; Java, JavaScript, HTML, CSS, TDD, Agile, pair programming, Bitbucket, Bamboo

Qualifications

  • Experience in the Salesforce platform
  • Apex, Aura/LWC, Visualforce development with a strong understanding of development best practices
  • Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API
  • Experience working with Salesforce CPQ, Salesforce Billing, Revenue Recognition
  • Certinia Financial Management and Accounting(Desirable)

Additional Information

Were a community here that cares as much about your life outside work as how you feel when youre with us. Because your job shouldnt take over your life, it should enrich it. Here are some of the benefits we offer:

  • 29 days holiday allowance + bank holidays
  • Private medical and dental healthcare
  • Matching pension contribution of 4 or 5% (after 3 years of service up to 10%)
  • 24/7 Employee Assistance Programme
  • Life Assurance Cover
  • Cycle to work scheme
  • Hybrid working model (3 days working fromthe office)
  • Volunteering days
  • and you can bring your dog to the office onMondays and Fridays!

Our commitment

Equal opportunities are important to us. We believe that diversity and inclusion at The Stepstone Group are critical to our success as a global company, so we want to recruit, develop, and keep the best talent. We encourage applications from everyone, regardless of background, gender identity, sexual orientation, disability status, ethnicity, belief, age, family or parental status, and any other characteristic.

As a global business we further our DEI and sustainability progress by working with national and international bodies and are proud to have been recognised for our work - both locally and internationally, including:

  • Armed Forces Covenant: SilverAward, Employer Recognition Scheme
  • EcoVadis: Bronze Award
  • Fertility Friendly Employer, accredited by Fertility Matters at Work
  • RIDI (Recruitment Industry Disability) Awards: Inclusive Technology Award 2024
  • Stonewall: Gold Award
  • Stonewall: Top 100 Workplace Equality Index (85)
Senior Software Engineer - Ruby
Spectrum IT Recruitment
London
Remote or hybrid
Senior
ÂŁ80,000 - ÂŁ95,000

Senior Software Engineer - SaaS / AI scale up

80- 90,000+ benefits and remote working

A Senior Software / Principal Software Engineer opportunity for an exciting tech business offering innovative products to a global customer base. This is a senior hands-on engineer position in a Ruby, Rails, React, AWS stack leading projects in a scale up environment.

The business is developing a genuinely exciting product and are growing; they promote autonomy and collaboration and support remote working. Previous experience in a full stack engineer role using Ruby, TypeScript, React is essential. Previous experience with AI or Autonomous vehicles, is desirable.

Essential requirements:

  • A hands-on background within a Ruby, Rails, TypeScript, React, AWS or similar stack
  • Excellent problem-solving skills and the ability to work in a collaborative product led team
  • Advocate for Software engineering best practice - Unit testing, CI/CD, Pair Programming, etc
  • Interested in working on complex problems with senior engineers
  • The ability to work to set timescales for external customers

The company offer emote working options, all candidates applying must be UK based and eligible to work in the UK

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

AI Engineer
Tech Mahindra
London
Remote or hybrid
Senior - Leader
ÂŁ60,000 - ÂŁ75,000

AI & GenAI Solutions \* Design and delivery of production‑grade GenAI applications \* LLMs: Gemini (Flash), OpenAI, LLaMA \* Retrieval‑Augmented Generation (RAG), OCR‑based document intelligence \* AI‑driven automation for network design audit and compliance \* Full‑Stack Application Development \* Backend: Python, FastAPI, Django REST \* Frontend: Next.js, Angular \* Secure API design, document parsing, PDF obfuscation, data extraction \* Network Automation & Telco Domain Expertise \* RAN design validation and automation \* Network automation using APIs and intent‑based workflows \* Strong understanding of telecom network architecture and operations \* Cloud & Platform Engineering \* Cloud platforms: GCP (primary), AWS, Azure \* Containerized and cloud‑native application design \* CI/CD, Git-based workflows \* DevOps & Automation \* Infrastructure automation and orchestration \* End‑to‑end testing automation \* Performance optimization and operational efficiency improvements. \* Architecture & Technical Leadership \* End‑to‑end ownership from architecture to production \* Stakeholder collaboration with engineering, operations, and business teams \* Delivery of high‑impact solutions with measurable cost and time savings

Application Software Engineer – JavaScript
RedTech Recruitment Ltd
London
Hybrid
Graduate - Junior
Private salary
+7

A fantastic opportunity for talented Software Developers, to join an industry-leading software company in either London or Cambridge offering the opportunity to work on a wide variety of web application infrastructure projects using a diverse toolset, with an emphasis on JavaScript, Node.js and related frameworks. Location: London or Cambridge (3 days on site, 2 days remote) Salary: Negotiable + comprehensive benefits Requirements for Application Software Engineer: History of academic excellence including a 2:1 or 1st class honours degree from a leading university plus AAB at A Level (or equivalent UCAS points) Solid commercial experience using JavaScript and ideally, node.js and related technologies/frameworks - top new graduates considered for the Cambridge office You class yourself as a tech innovator and the idea of shaping products and suggesting new technologies really appeals Ability to quickly pick up new technologies – working in JavaScript you’re aware new technologies/frameworks emerge all of the time, and you will need to stay abreast of the latest and best technologies to apply to any given project Good communication skills Responsibilities for Application Software Engineer – Graduate Considered: Work on web applications using a diverse toolset based around JavaScript technologies. While there will be opportunities to work across the stack. The current tech stack includes: Web (UI): JavaScript (backbone.js, d3.js, three.js, pdf.js), Less/CSS Web (Backend): Node.js, PostgreSQL, Elasticsearch, Redis Develop, deploy and maintain web application infrastructure Be a tech innovator and put ideas forward to the team If you are keen there is the opportunity to mentor junior members of staff What the role offers: The chance to work on a diverse toolset of cutting-edge tech Working for a leading software company who have a fantastic track record of successfully training and promoting internally A great remuneration and benefits package Applications: If you would like to apply for this unique Developer role then please send your CV via the relevant links! We’re committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the review process, please highlight this by emailing (if this email address has been removed by the job-board, full details for contact are available on our website). Keywords: Software Engineer / Application Developer / Back-End Software Engineer / node.js developer / node.js Software Engineer / Full-Stack Developer / UI/UX Developer / JavaScript Developer / Vue.js Developer / MEAN Stack Developer / MERN Stack Developer / Meteor.js Developer / Express.js Developer / Web Design Engineer / Web Integration Developer / Web Architect / Software Engineer (Web) / Web Systems Developer/ Web Software Engineer / Web Programmer / JavaScript / Node.js / backbone.js / HTML5 / Less CSS / Computer Science / Web Development / Web Software Engineer / PHP Astrophysics / Software Engineering / JavaScript / React.js / AngularJS / Vue.js / Node.js / ExpressJS / Web UI / Front-end / full-stack / back-end / Developer --- RedTech Recruitment Ltd focus on finding roles for Engineers and Scientists. Even if the above role isn’t of interest, please visit our website to see our other opportunities. We are an equal opportunity employer and value diversity at RedTech. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status

Software Developer
Vermillion Analytics
Epsom
Hybrid
Mid - Senior
ÂŁ50,000 - ÂŁ60,000

Make an Impact with Technology That Matters Imagine building software that millions of people rely on to receive critical information. You will be shaping a platform that supports government bodies, national institutions, and education services, helping deliver communications efficiently, securely, and ethically. Right now, a brand-new platform is being built from scratch, and this is your chance to influence its architecture, technology choices, and future direction. You will be joining at the perfect moment to make your mark. What You Will Do \* Shape the architecture of a next-generation SaaS platform \* Build robust microservices that scale and perform \* Develop in .NET and C# on the backend \* Create intuitive, high-performing frontends with React and TypeScript \* Deploy cloud-native solutions in Azure \* Collaborate closely with senior technical leadership, helping set engineering standards \* See your work directly impact real-world public sector users \* You will take ownership, make decisions that matter, and help define how the platform evolves. Why You Will Love This Role \* You will influence a product from day one, your ideas and decisions will shape the future \* You will work on meaningful projects that make public sector communications more reliable, efficient, and ethical \* You will have autonomy once onboarded, with flexibility to work remotely \* You will be part of a small, collaborative team where your input is heard and valued \* You will learn and grow alongside highly experienced technical leadership What You Bring \* Deep experience in .NET/C# and building backend services \* Strong React skills, with a solid understanding of its fundamentals \* Experience designing or contributing to microservices architectures \* Confidence in containerisation (Docker) and cloud-native solutions (Azure) \* A solid grasp of SOLID principles, clean architecture, and maintainable code Bonus if you have worked in SaaS, public sector systems, or scalable high-availability platforms. How You Will Start Month 1 – Office-Based in Epsom \* Weeks 1–2: Immerse yourself in the product and business, meet the team, and understand the roadmap \* Weeks 3–4: Start hands-on development, working closely with the CTO, gradually taking ownership and ramping up at a pace that suits you After onboarding: \* Work remotely with flexible arrangements \* Required office attendance once every 3-week sprint (Mondays) \* Take full ownership of your work and influence the platform All recent hires have been fully productive within the first month. You can too. Who You Are You are someone who: \* Wants to build things properly from the ground up \* Loves solving complex technical challenges \* Cares about clean, maintainable architecture \* Wants your work to have visible, real-world impact \* Thrives in a collaborative team but can work autonomously \* Are happy to travel to Epsom, particularly during the first month for onboarding and induction \* Has the right to work in the UK (please note that visa sponsorship is not available) If you want more than just another job and want to help shape a platform that matters, this is the role for you

Frequently asked questions
London offers a wide range of Full Stack Engineer positions across various industries, including finance, tech startups, healthcare, and e-commerce. Roles vary from entry-level to senior positions, often requiring experience with popular front-end and back-end technologies.
Commonly required skills include proficiency in JavaScript frameworks like React or Angular, back-end technologies such as Node.js, Python, or Java, experience with databases like SQL or NoSQL, and knowledge of cloud platforms such as AWS or Azure.
You can create a profile on our platform, upload your CV, and search for Full Stack Engineer roles in London using our filters. Once you find suitable jobs, you can apply directly through the job board with a single click.
Yes, many employers in London offer remote or hybrid working options for Full Stack Engineers. You can filter your job search by location or work type to find roles that suit your preferences.
Salaries for Full Stack Engineers in London vary based on experience and company size but generally range from ÂŁ45,000 to ÂŁ90,000 per year. Senior or specialized roles can offer higher compensation.