101 to 125 of 201 Open Source Jobs in the UK

Software Engineer (RISC-V/Compiler)

Hiring Organisation
microTECH Global LTD
Location
Cambridge, England, United Kingdom
computer architecture; some experience with assembly languages (x86, RISC-V); familiarity with hardware design is a plus. - Good knowledge of Linux. - Experience contributing to open source projects. - Higher degree levels and academic research experience are highly valued. ...

Senior Developer

Hiring Organisation
ISR Recruitment Ltd
Location
Redhill, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 Annual
Senior Developer to lead and work as part of a team in the system design/development processes. You will be using bespoke and open-source software, primarily Linux based to bring additional value to their in-house and customer solutions. In co-ordination with the Head ...

IT Integration Developer

Hiring Organisation
Profectus Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum, Inc benefits
programmes • Experience working alongside AI, Automation or Power Platform teams • Background in software development with the ability to work with internal codebases • PHP or open source framework experience would be beneficial • Microsoft Azure certifications would be advantageous Why Apply? This is an opportunity to join a forward thinking ...

Lead Systems Developer

Hiring Organisation
Rise Technical Recruitment
Location
Redhill, Surrey, United Kingdom
Employment Type
Permanent
value added services across satellite, mobile and terrestrial networks. You will take a lead role in system design and development, working with bespoke and open source technologies to enhance in house platforms and customer solutions. Working closely with senior technical leadership, you will mentor developers, shape development standards ...

Application Engineer III - Java

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Permanent
Salary
£52000 - £89000/annum £52,000 - £89,000
takes: Experience in Test Driven Development and strong knowledge of Java (17 or higher), Spring Boot, Spring MVC, RESTFul API implementation, GraphQL, and open-source frameworks Experience in software development using cloud technologies (AWS preferred) Knowledge of build/deployment/testing/logging/monitoring tools ...

Senior AI Infrastructure Engineer

Hiring Organisation
Hamilton Barnes 🌳
Location
United Kingdom
sense of accountability. Nice to Have Exposure to GPU-based infrastructure, large-scale compute platforms, or HPC. Familiarity with advanced networking technologies. Contributions to open-source or cloud-native communities. What’s on Offer? Impact: The opportunity to make a visible, meaningful impact on a platform used ...

Bio Machine Learning Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
tools (e.g. FASTQ, BAM, variant calling) Knowledge of protein structure modelling or drug discovery workflows Exposure to MLOps, deployment, and production systems Publications or open-source contributions in relevant domains Why Join Them Opportunity to work on genuinely impactful problems in healthcare and life sciences Early-stage equity ...

Engineering Manager

Hiring Organisation
Canada Life
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

LLM Engineer

Hiring Organisation
Ultralytics
Location
London Area, United Kingdom
plus local holidays. Flexible Hours: Tailor your working hours to suit your productivity. Tech: Engage with cutting-edge AI projects and contribute to leading open-source software. Gear: Brand-new Apple MacBook and Apple Display provided. Team: Become part of a supportive and passionate team environment. ...

Senior Backend Engineer

Hiring Organisation
Nelly Works
Location
City of London, London, United Kingdom
powered features is valuable but not required. End-to-end ownership mindset : You've shipped something meaningful on your own—a project, open source tool, or business—and you drive work from conception to production. Modern backend fundamentals : Comfortable with modern backend languages and frameworks, plus exposure ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
Experience working with mobile applications (React Native/Kotlin/Swift). Experience working in regulated industries or multi-client B2B systems. Contributions to open-source Ruby projects or technical blogging. Benefits Private healthcare after your probation (including children) Hybrid working model 25 days holiday Volunteering Leave Free ...

Vice President, AI Deployment & Strategy (UK, Italy, France or Germany)

Hiring Organisation
SaxeCap
Location
London Area, United Kingdom
worked on a live deal, you know what this feels like. Builder DNA. You don't just recommend, you build. Side projects, open-source contributions, 0-to-1 products, or intrapreneurial ventures all signal the instinct we're looking for. Structured synthesis at scale. You can process massive ...

Engineering Manager

Hiring Organisation
Canada Life UK
Location
City of London, London, United Kingdom
Employment Type
Part Time
optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

Engineering Manager

Hiring Organisation
Canada Life UK
Location
Isle Of Man, North West, United Kingdom
Employment Type
Part Time
optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

Engineering Manager

Hiring Organisation
Canada Life UK
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Part Time
optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

Engineering Manager

Hiring Organisation
Canada Life UK
Location
Potters Bar, Hertfordshire, South East, United Kingdom
Employment Type
Part Time
optimise flow, deliver customer value and modernise our platforms. Our bespoke mortgage system is built using Ruby on Rails, MySQL, JavaScript, and other open-source technologies, with a clear roadmap toward cloud-native evolution. Key responsibilities Lead, coach and inspire a stream-aligned product engineering team, fostering ...

Head of Technology (Technical)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
waterfall and Agile methodology. Experience of many different technology types and approaches, front end, back end, SaaS, IaaS, PaaS, cloud, hybrid Cloud, Opensource, ERP, CRM, Web, Automation, DevOps, Scrum. Expertise in both the strategy and execution of digital and technology transformation. Develop and lead substantial technology and implementation functions. Support ...

Lead Data Engineer (eDV)

Hiring Organisation
Aker Systems Limited
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
will assist in the development of a secure batch/real-time data platform for a government client leveraging the latest commercial and open-source technologies. This involves getting data from a variety of different sources, getting it into the right format, assuring alignment to target models … Terraform for IaC deployments Experience in Linux and Windows Aker Systems Attributes At Aker we work as a team; we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider Aker. ...

Senior Software Engineer (Java Script)

Hiring Organisation
Hamilton Barnes 🌳
Location
London Area, United Kingdom
Software Engineering Trading experience Deep Java Script expertise Experience refactoring existing software Bonus points for experience with Docker, distributed systems, testing, Rust/WebAssembly, open-source projects, or an interest in finance. #Unforutnately their is no sponsorship available for this role. If you like solving hard engineering problems ...

Cloud Architect- eDV Cleared

Hiring Organisation
Searchability NS&D
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £115,000 per annum, Negotiable
commute to Manchester.- Experience as a hands-on cloud architect CLOUD ARCHITECT ESSENTIAL SKILLS- Expertise in delivering AWS Cloud native solutions- Background in Open-source technologies and frameworks- Experience with micro-service based architectures- Experience working with structured architecture approaches (TOGAF or SAFe)- Leadership and stakeholder management experience ...

Cloud Architect- eDV Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £120,000 per annum, Negotiable
commute to London.- Experience as a hands-on cloud architect CLOUD ARCHITECT ESSENTIAL SKILLS- Expertise in delivering AWS Cloud native solutions- Background in Open-source technologies and frameworks- Experience with micro-service based architectures- Experience working with structured architecture approaches (TOGAF or SAFe)- Leadership and stakeholder management experience ...

Cloud Architect- eDV Cleared

Hiring Organisation
Searchability NS&D
Location
Cheltenham, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £115,000 per annum
commute to Cheltenham.- Experience as a hands-on cloud architect CLOUD ARCHITECT ESSENTIAL SKILLS- Expertise in delivering AWS Cloud native solutions- Background in Open-source technologies and frameworks- Experience with micro-service based architectures- Experience working with structured architecture approaches (TOGAF or SAFe)- Leadership and stakeholder management experience ...

Senior AI Engineer

Hiring Organisation
Enablis
Location
Leeds, England, United Kingdom
evolving AI tooling (MCP, A2A, Threads or similar) Consultancy or client-facing delivery experience Desirable: Vector databases, embeddings, fine-tuning Cloud experience (AWS preferred) Open-source contributions or visible AI side projects This is not a research role. We’re looking for builders. If you want to help ...

Lead Developer

Hiring Organisation
Reed
Location
Redhill, Surrey, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum, Inc benefits
mentoring developers, and driving best practice across modern software delivery. You will be leading development across Linux based systems, working with both bespoke and open source technologies, and playing a key role in the ongoing evolution of in house platforms covering areas such as VoIP, networking services, traffic ...

Machine Learning Engineer (Computer Vision)

Hiring Organisation
Matchtech
Location
Surrey, United Kingdom
Employment Type
Permanent
/deployment tooling (ONNX, TensorRT) Edge deployment experience (e.g., NVIDIA Jetson or other resource-constrained devices) Familiarity with MLOps tooling (e.g., DVC, MLflow) Relevant open-source contributions in computer vision Interested? If this sounds like you, apply with your CV or get in touch to discuss the role ...