1 to 25 of 68 Open Source Jobs in London

SAM Consultant - OSS

Hiring Organisation
Talent Smart
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 595 - 630 Daily
financial services client is seeking a Software Licensing Specialist to support the governance, processes and controls surrounding the consumption and contribution of Free and Open Source Software (FOSS). This role sits within an international team and involves close collaboration with Engineering, Tooling and Legal functions. … well suited to candidates with strong expertise in open-source licensing, or those with a background in Software Asset Management (SAM)/IT Asset Management (ITAM) within a commercial environment. The successful candidate will be a proactive self-starter, comfortable working independently and delivering to tight deadlines ...

SAM Consultant - OSS

Hiring Organisation
Talent Smart
Location
E14, Canary Wharf, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£595 - £630/day
financial services client is seeking a Software Licensing Specialist to support the governance, processes and controls surrounding the consumption and contribution of Free and Open Source Software (FOSS). This role sits within an international team and involves close collaboration with Engineering, Tooling and Legal functions. … well suited to candidates with strong expertise in open-source licensing, or those with a background in Software Asset Management (SAM)/IT Asset Management (ITAM) within a commercial environment. The successful candidate will be a proactive self-starter, comfortable working independently and delivering to tight deadlines ...

Technical Architect Principal (UK)

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
responsible for designing major solution components, defining reference architectures, and guiding development teams through POCs to production-scale implementations. The role has a strong open-source, distributed systems, and data architecture focus, with frequent CIO-level technical interactions. Your Responsibilities Architecture & Blueprint Design Define end-to-end architecture … components for scalability, resilience, and performance. Lead tool selection and POC execution, validating architectural choices. Guide teams from conceptual design to production-ready architecture. Open Source & Platform Architecture Act as the open-source architecture authority, ensuring correct adoption and customization. Evaluate and recommend open-source ...

Solutions Architect - Applications, Open Source, Kafka, Biztalk, Angular

Hiring Organisation
Bangura Solutions
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 95,000 Annual
Solution Architect - Applications, Open Source, Kafka, Biztalk, Angular Exciting career opportunity available for a proven Applications Solutions Architect who has depth and breadth in designing and building technical Open Source - Kafka, Biztalk, Angular solutions. Working for a global financial services organisation, you will get the opportunity … working closely with business teams in making the right technology choices for the organisation. It may also suit an experienced Solutions Architect - Applications, Open Source, who is looking for a new environment to apply your lesson learned in a new global environment to challenge yourself. Our client believes ...

Software Licensing Analyst/Engineer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £620/day
Software Licensing Analyst/FOSS Licensing SME to support the development of processes and controls governing the use and contribution of Free and Open-Source Software (FOSS) across the organisation. This role sits within the Technology CTO/Engineering Practice function and will play a key part … strengthening open-source governance, compliance, and licensing frameworks. The role requires a proactive self-starter who can work independently, manage competing priorities, and deliver results under tight deadlines. Key Responsibilities Evaluate and communicate the implications of open-source software licenses to both technical and non-technical ...

Research Engineer

Hiring Organisation
Arrows
Location
City of London, London, United Kingdom
Research Engineers | Frontier AI Lab I am partnering with a high-growth Frontier AI Lab, developing an open-source platform to unify structured and unstructured data into advanced knowledge graphs. The company is now expanding its research team and seeking exceptional AI Research Engineers to contribute … role focused solely on applying existing models. Responsibility: • Designing and developing novel model architectures in-house • Post-training and adapting state-of-the-art open-source foundation models • Owning projects end-to-end, from initial research through to production Experience: • Strong ML research track record (publications, open ...

Senior Full Stack Engineer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
analysis using Python (pandas, numpy) Understanding of data pipelines and ETL processes AI/LLM Engineering Experience integrating LLM APIs (OpenAI, Anthropic, Gemini, or open-source equivalents) into production applications Understanding of core LLM concepts: context windows, token limits, temperature, system prompts, and model selection trade-offs Experience … Experience building scalable backend systems Ability to work across multiple domains (backend, DevOps, data) Examples of taking projects from idea to production Contributions to open source or personal projects Note : Prolo is a startup with a small engineering team, which means you'll be expected to be versatile ...

Machine Learning Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
refine them through A/B testing and user feedback* Actively monitor the market and research landscape for new developments in Gen AI, evaluate open-source models and third-party AI APIs/services to inform build-vs-buy decisions to leverage the best available tools (or iterate … them) to keep Snap’s products at the cutting edge* Evaluate open-source Gen AI models and APIsKnowledge, Skills & Abilities:* A proven passion for machine learning; you stay up-to-date with research and are excited about prototyping new ideas quickly* Knowledge of mathematics and deep learning foundations ...

Computer Vision Engineer

Hiring Organisation
Ultralytics
Location
London Area, United Kingdom
What You'll Do As a Computer Vision Engineer at Ultralytics, you will be at the forefront of developing and refining our world-class, open-source AI models. You will drive the entire lifecycle of our models, from research to real-world deployment. Key responsibilities include: Developing, training … Excellent problem-solving skills and the ability to perform in a fast-paced, high-intensity environment. A strong portfolio of projects or contributions to open-source AI repositories. 🌟 Cultural Fit - Intensity Required Ultralytics is a high-performance environment for world-class talent obsessed with achieving extraordinary results. ...

Product and Platform Specialist

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
requirements into epics, features, and user stories. Work closely with Business Analysts to ensure documentation quality and traceability. Cross-Functional Leadership Collaborate with: Architects (open source and enterprise) Designers (solution components) Developers (POCs and platform build-out) Guide teams on best practices, standards, and reusable platform components. Your … with time-series databases (e.g., Prometheus, VictoriaMetrics, OpenSearch, InfluxDB, etc.). Technical & Platform Expertise Platform design for large-scale, distributed systems. Strong knowledge of open-source observability stacks. Experience driving POCs into enterprise-grade solutions. Leadership & Communication Proven experience engaging with CIOs and senior technology leaders. Ability ...

Founding Design Engineer

Hiring Organisation
Healf
Location
London Area, United Kingdom
irrelevant. The output is everything. You have a trail of things you've made. Not just a portfolio of screens. Actual things. Side projects, open-source components, personal sites that are themselves demonstrations of craft. When someone visits your work, they don't just see what … surprised you. The only question is how far you can push it. Show us → Something you made outside of work. A side project, an open-source component, a personal site that demonstrates how you think and what you care about. → A product you designed and built where ...

Agentic RAG Engineer/Architect - London (Contract)

Hiring Organisation
FUTURUS FINANCIAL RECRUITMENT LTD
Location
City of London, London, United Kingdom
Architecture — Design an end-to-end agentic retrieval architecture where retrieval is not a static pipeline but an agent-driven process: query planning, source selection, parallel retrieval, result fusion, self-critique, and iterative refinement. Implement advanced patterns including corrective RAG (detect and recover from poor retrieval), adaptive RAG (dynamically … feature engineering. 6. Query Routing & Orchestration — Implement intelligent query routing agents that decompose complex user questions into sub-queries, determine the optimal retrieval source (vector, graph, tabular, API) for each, execute in parallel, and synthesise coherent answers. 7. Retrieval Quality & Evaluation — Build evaluation frameworks for retrieval quality: precision, recall ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National ...

Principle Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National ...

Professional Services DevOps Consultant

Hiring Organisation
REAL Technical Solutions Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 - 130,000 Annual
supporting both on-premise and cloud-based environments. Exposure to software architecture and system design is a plus. Strong learning mindset and passion for open-source technologies. Why Join the team: Work with cutting-edge technologies in a rapidly evolving space. Engage with leading enterprise customers on complex ...

Lead Gen AI Engineer/Architect

Hiring Organisation
MBN Solutions
Location
City of London, London, United Kingdom
senior stakeholders. Deep domain experience in regulated or data-rich industries (e.g. financial services, healthcare). Track record of thought leadership (publications, patents, open source, or industry impact). Technical Excellence Expert Python and modern ML frameworks (PyTorch, TensorFlow). Strong experience with Generative AI tooling (e.g. LangChain ...

Lead AI Architect - Permanent - Hybrid - Insurance

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
along with data scientists, MLOps engineers, GenAI engineers, and business teams to design architecture and pilot use cases. Evaluate and select appropriate technologies from open-source and commercial ecosystems, considering deployment models and integration with existing enterprise tools. Support the successful delivery and ongoing operational improvement ...

AI Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £475 per day
enterprise workflows Your Profile Essential Skills/Knowledge/Experience AI Engineer (5 to 12 Years) Hands-on experience with GenAI, Gemini or Open source LLMs, Train, finetune and Onboard new LLMs Experience in building GenAI applications using Python Hands-on Experience with API Development and Microservices architecture ...

Lead AI Architect, Associate Director - Insurance, AI&Data, Technology & Transformation

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Architects, Data scientists, MLOps & GenAI Engineers, and Business teams to pilot use cases and discuss architectural design. Select appropriate technologies from a pool of open-source and commercial offerings, considering deployment models and integration with existing tools. Be responsible for the successful execution and operational improvement ...

Principal Architect - Gen AI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Ensure compliance with industry standards and international regulations. What you'll bring: Advanced degree in Computer Science, AI, or a related field. Contributions to opensource AI projects or published research in AI/ML. Extensive experience in software or systems architecture, with strong focus in AI/ ...

Forensic Data Analytics Manager

Hiring Organisation
KPMG UK
Location
London Area, United Kingdom
role The role will involve leading a team deploying forensic analytics (including testing routines across structured data and LLM-enabled unstructured, structured and open-source data analysis) over large datasets to help our clients solve their most complex fraud, misconduct and integrity matters. This role requires a deep … need to do is apply, create a profile, upload your CV and begin to make your mark with KPMG. Our Locations: We are open to talk to Forensic talent across the country but our core hubs for this role are: Birmingham London Canary Wharf Manchester With 20 sites across ...

Observability SRE / Platform Engineer – Elite Quant Hedge Fund

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
bias for systemic platform fixes. Strong software engineering skills: high proficiency in at least one modern programming language (Python preferred). Modern open-source observability knowledge: Experience within the ecosystem (e.g. OpenTelemetry, LGTM stack, Prometheus, Grafana, Loki). Unsiloed cross-platform operator: Confidence taming complex technical landscapes spanning ...

Principal Software Engineer - AI and Innovation

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Permanent
guiding technical teams to deliver Desirable Experience DevOps practices and CI/CD pipelines Secure-by-design development and security best practices Contributions to open-source projects ...

Senior Software Engineer

Hiring Organisation
Burns Sheehan
Location
City of London, London, United Kingdom
performance, reliability and availability are key considerations. 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 ...

Back End Developer

Hiring Organisation
Albert Bow
Location
London Area, United Kingdom
RabbitMQ, NSQ, or Pulsar Integrating external APIs/services Performance optimisation & working under performance budgets Interest or experience in cryptocurrencies, Web3, or digital assets Opensource contributions or tech blogs/talks Why apply? Work on real financial infrastructure , not internal tooling Engineering‐driven culture focused on quality ...