76 to 100 of 191 Open Source Jobs in the UK

Global Banking & Markets - Trading Systems Support Engineer - Associate/Vice President - London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
provide liquidity and execution services for institutional clients around the world, two important revenue drivers for the firm. In Futures Engineering we use both opensource industry standard and internal proprietary technologies to build cutting‐edge platforms for pricing, execution, and control over each of these millions ...

Quant Developer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£180000 - £200000/annum
Asian options, barrier structures, or path-dependent exotics common in commodity markets Machine learning applied to vol forecasting, regime detection, or execution cost optimisation Open-source quant library contributions, published research, or CQF/MFE/PhD in a quantitative discipline What We're Looking ...

Graduate AI Software Engineer

Hiring Organisation
X-on Health
Location
Woodbridge, England, United Kingdom
models) and prototyping how they can be applied to our products Operations: Optionally contribute to our AI infrastructure to help operate self-hosted open-source models Testing & Validation: Development of tooling to assist our Test Team in conducting evals against our many provider models to ensure ...

Data Scientist

Hiring Organisation
DCV Technologies Limited
Location
Central London, London, United Kingdom
Employment Type
Contract
skills/knowledge/experience: (Up to 10, Avoid repetition) Role- Data Scientist (5 to 12 Yrs) Hands-on experience with GenAI, Gemini or Open source LLMs and develop GenAI applications for Code Translation, Text Extraction, Summarisation and SDLC Optimization etc. Hands-on Experience with AI Agents, Chat ...

Global Banking & Markets - Trading Systems Support Engineer - Associate/Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
provide liquidity and execution services for institutional clients around the world, two important revenue drivers for the firm. In Futures Engineering we use both open-source industry standard and internal proprietary technologies to build cutting-edge platforms for pricing, execution, and control over each of these millions ...

Global Banking & Markets - Trading Systems Support Engineer - Associate/Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
provide liquidity and execution services for institutional clients around the world, two important revenue drivers for the firm. In Futures Engineering we use both open-source industry standard and internal proprietary technologies to build cutting‐edge platforms for pricing, execution, and control over each of these millions ...

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. ...

Data Scientist

Hiring Organisation
Queen Square Recruitment
Location
City of London, London, United Kingdom
Experience 5–12 years of experience in Data Science, Machine Learning, or AI-related roles Strong hands-on experience with GenAI, including Gemini or open-source LLMs Experience building GenAI applications such as code translation, summarisation, text extraction, and SDLC optimisation Hands-on experience with AI Agents, chatbots ...

Lead Software Engineer

Hiring Organisation
Burns Sheehan
Location
London Area, United Kingdom
solving ambiguous and complex challenges. Experience working on software infrastructure or building Cloud native software using Kubernetes. Understanding of systems design and Open Source components. If you have knowledge of building virtual machines - Virtual servers, virtual networking or network programming - that's a plus... but definitely not needed ...

Quant Developer

Hiring Organisation
Huxley Associates
Location
London, United Kingdom
Employment Type
Permanent
Salary
£180000 - £200000/annum
Asian options, barrier structures, or path-dependent exotics common in commodity markets Machine learning applied to vol forecasting, regime detection, or execution cost optimisation Open-source quant library contributions, published research, or CQF/MFE/PhD in a quantitative discipline To find out more about Huxley, please ...

SOFTWARE ENGINEER / OFFENSIVE SECURITY

Hiring Organisation
Secure Recruitment Ltd
Location
North London, London, United Kingdom
Employment Type
Permanent, Work From Home
Proactive Approach to Navigating Technical Challenges. Experience of working within Fast-Moving Growth Environments or B2B Scale-UpsFocusing on Enterprise Clients Bonus: Contributions to Open-Source Projects or Public Security Tooling Responsibilities of Application Security Engineer: Cloud-Driven Engineering: Utilise Cloud-Native Services to Develop Resilient, Big Data ...

.NET Developer

Hiring Organisation
Reed Technology
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
Salary
£55,000
What You'll Be Working On You'll help build a modern, cloud-first application from the ground up, leveraging the latest Microsoft and open-source technologies. Expect to work with: MS .NET (latest versions) React for a clean, dynamic front-end Microservices architecture Azure cloud services Modern ...

Solutions Engineer

Hiring Organisation
HireCapital
Location
City of London, London, United Kingdom
customers Lead customer workshops on Property-Based Testing (PBT) and related methodologies Support the sales team with technical qualification and consultation Find bugs. Break open source software. Make a point of it. Build, maintain, and deliver product demos that land with technical audiences Guide customers and prospects ...

AI Engineer / Machine Learning Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Science, or a related field, or equivalent practical experience. Experience Extensive experience in applying theoretical knowledge in practical scenarios through traditional employment, freelance projects, open-source contributions, or coding bootcamps. Demonstrated leadership experience in AI and machine learning projects. Note: Successful applicants will receive a coding challenge ...

LLM Engineer

Hiring Organisation
Ultralytics
Location
City of London, London, 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. ...

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

Hiring Organisation
Transreport
Location
London Area, 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 ...

Infrastructure Engineer

Hiring Organisation
Lockheed Martin
Location
Brockworth, England, United Kingdom
formal product sell off Experience in automated testing in the software domain Experience in developing GitLab CI/CD Pipelines. Experience with Commercial and Open Source automated testing frameworks Experience working with Git, Atlassian suite, Jira, Confluence or similar Knowledge and automation of both functional and non-functional ...

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 ...

Sr. BI & Data Architect [Fixed - Term Contract]

Hiring Organisation
Cint
Location
United Kingdom
implement the Unity Catalog structure — Catalogs, Schemas, and Volumes — to create a governed, secure, and well-documented data environment that serves as a Single Source of Truth across the organization. Lead the migration of complex business logic from legacy systems into a unified Databricks Lakehouse, refactoring tightly coupled … into modular, maintainable, and performant code. Architect our internal transformation framework using open-source tooling (Delta Live Tables or custom Python/SQL Spark pipelines), building scalable pipelines without reliance on managed SaaS platforms. Serve as the resident query performance expert — analyze Spark execution plans and Spark ...

Software Engineer (Rust)

Hiring Organisation
Microtech Global Ltd
Location
Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
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. ...

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 ...

Graduate Software Developer

Hiring Organisation
Newton Blue
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£30,000
their practical integration into products (e.g. for assisted data entry, summarisation, or knowledge retrieval) and experience with document AI platforms or frameworks (commercial or open-source). ...

Software Engineer

Hiring Organisation
Square One Resources
Location
Basildon, England, United Kingdom
with tools such as: IntelliJ IDEA (or other JetBrains products) SonarQube (or similar code quality tools) Checkmarx (or similar security testing tools) FOSSA (or open-source compliance tools) Cycode (or software supply chain security platforms) What We’re Looking For Excellent verbal communication skills and strong team collaboration ...