131 software engineer jobs found

Senior SDET / Software Engineer in Test – Azure / C# / CI/CD UK Remote Contract - Outside IR35 Initial 6 Months ASAP I'm looking for a Senior SDET / Software Engineer in Test to join a major transformation programme. You'll be working on a legacy Microsoft application that's been migrated into Azure, helping improve automated testing, CI/CD pipelines and release processes. This is a hands-on engineering role, ideal for someone who can produce code, understands cloud infrastructure and enjoys improving how software is tested and delivered. What you'll be doing: Building and integrating automated integration and end-to-end tests into GitHub Actions . Automating Azure test environments, including infrastructure setup and teardown. Developing reliable test data creation and clean-up processes. Working with engineering and QA teams to improve test coverage and reduce manual testing. Driving improvements to CI/CD practices and release automation....

London UAS Software Engineer Location: London / Hybrid, 2 days per week Sector: UAV / Unmanned Systems / Edge Technology Rate: £58 - £70 per hour, Outside IR35 We are recruiting a UAS Software & Avionics Integration Engineer to join a team developing next-generation unmanned aircraft systems. The role covers ArduPilot firmware development and hardware-level system integration, from bench through to flight test. What you'll be doing: Developing and modifying ArduPilot source code to deliver new features and platform-specific capabilities Integrating flight controllers, companion computers, sensors, datalinks, payloads and ground control systems Implementing and maintaining interfaces over MAVLink, serial, CAN, Ethernet, SPI and I2C Leading system integration, fault diagnosis, ground testing and flight testing Analysing flight logs and telemetry data to drive performance improvements What you'll bring: Proven experience developing and customising...

Senior SDET/Software Engineer in Test - Azure/C#/CI/CD UK Remote | Contract - Outside IR35 | Initial 6 months | ASAP I'm looking for a Senior SDET/Software Engineer in Test to join a major transformation programme. You'll be working on a Legacy Microsoft application that's been migrated into Azure, helping improve automated testing, CI/CD pipelines and release processes. This is a hands-on engineering role, ideal for someone who can produce code, understands cloud infrastructure and enjoys improving how software is tested and delivered. What you'll be doing: Building and integrating automated integration and end-to-end tests into GitHub Actions . Automating Azure test environments, including infrastructure setup and teardown. Developing reliable test data creation and clean-up processes. Working with engineering and QA teams to improve test coverage and reduce manual testing. Driving improvements to CI/CD practices and release automation. What...

Fully Remote (UK) | Outside IR35 | Day Rate Flexbile (DOE) Fancy getting in early on a medical device project? We're working with a client who needs an experienced Embedded engineer to help bring a Legacy system up to scratch, reporting directly to the technical lead. What you'll be doing: Developing and maintaining Embedded C firmware on STM32 Working within an ISO 13485/IEC 62304 regulated environment Getting to grips with (and improving) a Legacy codebase Helping shape the project scope and timelines from the start What they're looking for: Strong Embedded C on ARM microcontrollers, ideally STM32 Hands-on experience of IEC 62304 and ISO 13485 Keil experience is a bonus Bonus points if you've got opinions on how AI coding tools fit into Embedded work The project is still being scoped, so it's a great chance to have a say in how it's shaped. If it sounds like your kind of thing, drop me a message or send over your CV.

Backend Software Engineer (Python/Django) x4 Contract £450 to £475 per day Outside IR35 Bath, Hybrid or Remote Bright Purple is partnering with a well-established B2B software business to bring in a contract Backend Software Engineers. You will join the team redesigning their client portal. This is a hands-on role for an experienced mid-level or senior Python engineer. You will design and build the APIs and backend workflows behind new portal features and own your work through to production. You will work in a collaborative product team that values good engineering, uses AI-assisted development well and wants contractors who will add to technical decisions. What you’ll be doing Designing, building and maintaining backend services and APIs using Python and Django Owning work end to end, from technical refinement through to deployment and monitoring Working closely with product, programme management, QA, platform engineering and other developers to shape practical...

Frontend Software Engineer (Angular) X4 Bath / Hybrid/Remote £450 - £475 per day Outside IR35 Bright Purple is partnering with a well-established B2B software business to hire a Frontend Software Engineer. You will play a key part in the redesign of their client portal. This is a hands-on role for an experienced mid-level or senior engineer who knows Angular inside out, writes clean TypeScript and enjoys owning work from idea to production. You will join a collaborative product team that values good engineering, makes the most of AI-assisted development and wants people who will shape technical decisions. What you’ll be doing Designing, building and maintaining responsive, accessible web applications in Angular and TypeScript Owning features end to end, from technical refinement through to deployment and monitoring Working closely with product, UX/design, QA, platform and backend colleagues to turn user needs into well-crafted interfaces...

Frontend Software Engineer (Angular) x4 | Bath / Hybrid/Remote | £450 - £475 per day Outside IR35 Bright Purple is partnering with a well-established B2B software business to hire a Frontend Software Engineer. You will play a key part in the redesign of their client portal. This is a hands-on role for an experienced mid-level or senior engineer who knows Angular inside out, writes clean TypeScript and enjoys owning work from idea to production. You will join a collaborative product team that values good engineering, makes the most of AI-assisted development and wants people who will shape technical decisions. What you’ll be doing Designing, building and maintaining responsive, accessible web applications in Angular and TypeScript Owning features end to end, from technical refinement through to deployment and monitoring Working closely with product, UX/design, QA, platform and backend colleagues to turn user needs into well-crafted interfaces Building reusable,...

Frontend Software Engineer (Angular) X4 | Bath / Hybrid/Remote | £450 - £475 per day Outside IR35 Bright Purple is partnering with a well-established B2B software business to hire a Frontend Software Engineer. You will play a key part in the redesign of their client portal. This is a hands-on role for an experienced mid-level or senior engineer who knows Angular inside out, writes clean TypeScript and enjoys owning work from idea to production. You will join a collaborative product team that values good engineering, makes the most of AI-assisted development and wants people who will shape technical decisions.   What you’ll be doing Designing, building and maintaining responsive, accessible web applications in Angular and TypeScript Owning features end to end, from technical refinement through to deployment and monitoring Working closely with product, UX/design, QA, platform and backend colleagues to turn user needs into well-crafted interfaces...

Backend Software Engineer (Python/Django) x4 Contract £450 to £475 per day Outside IR35 Bath, Hybrid or Remote Bright Purple is partnering with a well-established B2B software business to bring in a contract Backend Software Engineers. You will join the team redesigning their client portal. This is a hands-on role for an experienced mid-level or senior Python engineer click apply for full job details

Ruby On Rails Software Engineer - 100% REMOTE. £600-£650/day OUTSIDE IR35, 12 MONTH CONTRACT. Ruby Software Engineer sought for our prestigious client. For the immediate term work is primarily Rails, React and Python, with anticipated increasing exposure to Java and/or Rust. Deliverables: Taking a lead role in a small team, channel your inner product owner to meet customer requirements sustainably, meeting time-critical deadlines when required. Ensure outputs are designed to be simple, maintainable, and scalable. Drive requirements and display ownership of large, complex projects or systems. Work with stakeholders across multiple projects and communicate consistently and proactively. Identify, drive and support broader engineering efforts that improve the codebase to the benefit of multiple teams Ownership of code quality and user experience. Drive code quality for projects and guide others in performing code reviews. Ensure code passes standards for cleanliness,...

CONTRACT AI SOFTWARE ENGINEER - OUTSIDE IR35 - SC Cleared NEW CONTRACT OPPORTUNITY AVAILABLE Rate: Up to £600 per day Location: London / Remote-first Working Pattern: Part-time, 2-3 days per week; predominantly remote with occasional London workshops Contract Length: 3 months initially, with extension likely IR35 Status: Outside IR35 Start Date: 19th October 2026 (subject to availability) I 'm currently working with an organisation delivering innovative AI and data solutions within the UK public sector, who are looking for an experienced AI Software Engineer to join an initial 3-month engagement on a part-time basis. This is an opportunity to help shape how a new public sector organisation operates using AI from the outset, combining hands-on engineering with the design of AI-enabled workflows, governance and operating models. THE ROLE You 'll work as part of a collaborative engineering team, helping design and build...

UAV Autopilot Software Engineer (ArduPilot/PX4) Location: South West - On site initially, moving to a hybrid arrangement once familiar Duration: 6 months initial Option to go permanent Target rate: £60-65 ph Ltd Negotiable Outside IR35 Role Summary We are looking for an Autopilot Software Engineer to develop, integrate, and test flight control software for our unmanned aerial systems us click apply for full job details

About Us In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations. TwinStream was formed to bring together their collective expertise and experience into a single business, focused on delivering technical excellence and high-quality service to clients. Since then, the company has grown to over 100 team members across the UK, with colleagues working both on-site with clients, hybrid and remotely from home. Details: Rate: £450 - £550 Outside of IR35 Location: Remote with travel to Bristol as required Security Clearance: Must have DV clearance About the role: TwinStream software engineers (Java) develop components of a cross-domain security system within an agile development team. They are involved in the entire software development lifecycle, which includes understanding the need for change, software design, coding, testing, delivery, and support. A TwinStream software engineer is...

UAV Autopilot Software Engineer (ArduPilot/PX4) Location: South West - On site initially, moving to a hybrid arrangement once familiar Duration: 6 months initial Option to go permanent Target rate: £60-65 ph Ltd Negotiable Outside IR35 Role Summary We are looking for an Autopilot Software Engineer to develop, integrate, and test flight control software for our unmanned aerial systems us click apply for full job details

Azure Software Engineer Azure Software Engineer 7-month Contract, Full time (until March 2027) £609 per day, Outside IR35 Epsom, Surrey Hybrid working (3 days on site) TLP have been working with Toyota (GB) PLC for over 25 years and are a trusted partner. This role will be employed by TLP (secondment to Toyota (GB) PLC). We are looking for an experienced Azure Software Engineer to join the New Vehicle Sales team, supporting the delivery, development and maintenance of applications as part of a major AS400 modernisation programme. This is an exciting opportunity for an experienced Software Engineer with strong Azure experience to work across a modern technology stack, developing and integrating systems covering retail and fleet vehicle ordering, vehicle registration, vehicle pricing, order stock allocation, finance and invoicing, as well as other applications required across the modernisation programme. The role will involve working closely with Product Owners, Business...

OB Collective develops independent verification technology for organisations operating in government, regulated and high-assurance environments. Our work is concerned with establishing reliable evidence about information and automated actions before organisations rely on them. We’re building a senior technical team for a six-to-twelve-month engagement on a UK public-sector R&D programme focused on the cybersecurity and operational assurance of AI agents. We’re looking for a Senior Software Engineer – AI Agent Integrations to develop the integrations connecting agent environments and enterprise systems with our existing verification capability. As AI agents gain access to organisational data, credentials, tools, APIs and enterprise systems, organisations need stronger ways to understand what agents are permitted to do, what systems they can access and the actions they actually perform. The programme will extend an existing software capability to collect and verify...

Senior Backend Engineer - Node.js / TypeScript 12-Month Contract Fully Remote Outside IR35 We’re looking for a Senior Backend Engineer to join an exciting fintech business, working on highly scalable, mission-critical financial systems. The role is heavily focused on Node.js, TypeScript and AWS , with genuine ownership across the full lifecycle — from system design and architecture through to development, release and production support. You’ll have the opportunity to work on new products and capabilities from an early stage , making key technical decisions and helping shape how the platform evolves. What you’ll be working on Design, build and operate reliable, scalable backend services Own areas of the platform, including architecture and technical direction Build resilient APIs and distributed systems within a regulated financial environment Work with AWS serverless technologies , including Lambda, SQS, EventBridge and API Gateway Work with MongoDB and...

C++ Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The successful candidate will have experience in Financial Markets Technology and Real Time market data expertise. It's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include: Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build Real Time market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems, Interfaces and tools to historical market data simulations to increase research...

Senior Backend Engineer - Node.js/TypeScript 12-Month Contract | Fully Remote | Outside IR35 We're looking for a Senior Backend Engineer to join an exciting fintech business, working on highly scalable, mission-critical financial systems. The role is heavily focused on Node.js, TypeScript and AWS , with genuine ownership across the full lifecycle — from system design and architecture through to development, release and production support. You'll have the opportunity to work on new products and capabilities from an early stage , making key technical decisions and helping shape how the platform evolves. What you'll be working on Design, build and operate reliable, scalable Back End services Own areas of the platform, including architecture and technical direction Build resilient APIs and distributed systems within a regulated financial environment Work with AWS serverless technologies , including Lambda, SQS, EventBridge and API Gateway Work with MongoDB and...

About the job Senior Java Developer London Contract £650 - £750 per day outside IR35 Hybrid - 2/3 days onsite in the City We're partnering with a specialist consultancy to build a greenfield asset tokenisation platform for a major global financial institution. This is a hands-on Java engineering role focused on building the platform from scratch, solving complex technical challenges and shaping the future of the firm's digital assets capability. You'll be joining at the start of the journey, with the opportunity to influence both the platform and the wider programme as it grows. What you'll be doing Build a greenfield asset tokenisation platform using Java. Develop new services and platform components in a Linux environment. Work closely with other engineers to shape the design and direction of the platform. Solve complex engineering problems in a fast-moving environment. Use modern AI coding tools such as Claude Code, Windsurf or Devin as part of...