1 to 25 of 80 Open Source Jobs in London

Software Asset Management Consultant

Hiring Organisation
Talent Smart
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 630 Daily
someone with a strong background in software development or programming, to support governance, processes, and controls around the use and contribution of Free and Open Source Software (FOSS). The role is ideally suited to someone who has previously built or maintained software and has developed a strong … developer-focused guidance to engineering teams on the implications of FOSS licensing within their applications and codebases. Analyse licensing and copyright considerations for new open-source software requests, with an understanding of real-world development use cases. Use FOSS scanning and composition analysis tools to identify licensing risks ...

Software Asset Management Consultant

Hiring Organisation
Talent Smart
Location
E14, Canary Wharf, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £630/day
someone with a strong background in software development or programming, to support governance, processes, and controls around the use and contribution of Free and Open Source Software (FOSS). The role is ideally suited to someone who has previously built or maintained software and has developed a strong … developer-focused guidance to engineering teams on the implications of FOSS licensing within their applications and codebases. Analyse licensing and copyright considerations for new open-source software requests, with an understanding of real-world development use cases. Use FOSS scanning and composition analysis tools to identify licensing risks ...

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 ...

Lead Javascript Engineer

Hiring Organisation
Hydrogen Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 - 95,000 Annual
positive direction. Foster and build culture within your team using the values that we set out as an organisation You encourage and drive an open source way of development abiding by open source principles You drive evolutionary and challenging architectural solutions which maintain cohesiveness across … always have an eye on the industry trends You ensure we follow industry best practices You have: Experience creating/contributing to an open source project Experience managing a team of software engineers Architected and built performant, scalable, resilient public facing products Experience in Javascript Experience with state ...

Java full stack developer

Hiring Organisation
Skywaves Rise
Location
London Area, United Kingdom
team and approved as false positives • Upgrade dependencies both Java as well as Typescript/Javascript libraries • Resolve security vulnerabilities in no longer supported open source libraries • Ensure any security related changes will not break existing functionality What you will need: • At least 7+ year’s hands … Experience in working in a distributed global environment • Experience in investigating and resolving security related findings • Experience in upgrading and working with 3rd party open source dependencies • Very good expertise in Java SE/JEE, TypeScript • Very good expertise in software design patterns, integration patterns and enterprise architectural ...

Senior Golang Developer

Hiring Organisation
Levy Global
Location
London Area, United Kingdom
this role, you will focus on developing and maintaining high-performance applications using Golang, contributing to code-based deployment strategies, and collaborating on open-source projects. Your expertise will drive the deployment and management of cutting-edge solutions using technologies like Temporal. Responsibilities: Develop and maintain robust, scalable … design and implementation of code-based deployment strategies. Manage and optimize deployment and management processes for applications. Collaborate with the team on open-source projects and initiatives. Implement solutions using Temporal and similar technologies to enhance application performance. Ensure code quality through testing, code reviews, and adhering ...

JAVA Security Analyst

Hiring Organisation
Skywaves Rise
Location
City of London, London, United Kingdom
team and approved as false positives • Upgrade dependencies both Java as well as Typescript/Javascript libraries • Resolve security vulnerabilities in no longer supported open source libraries • Ensure any security related changes will not break existing functionality What you will need: • At least 7+ year’s hands … Experience in working in a distributed global environment • Experience in investigating and resolving security related findings • Experience in upgrading and working with 3rd party open source dependencies • Very good expertise in Java SE/JEE, TypeScript • Very good expertise in software design patterns, integration patterns and enterprise architectural ...

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 focuses on developing new novel architectures. 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 ...

Technical Support Engineer

Hiring Organisation
Formance
Location
City of London, Greater London, UK
terms of responsiveness, resolution time, tone, and knowledge Support the customer throughout their entire lifecycle Provide expert-level technical support for customers using our Open Source Ledger and other backend modules. Troubleshoot complex issues, investigating and diagnosing problems quickly, and escalating them to the development team when necessary. … support and relay feedback for continuous improvement. Ability to prioritize and manage multiple tickets/issues Fluent in English Nice to have : Familiarity with open-source ecosystems, APIs, webhooks, or BE tools Basic understanding of financial services infrastructure (ledgers, reconciliation, transactions) Benefits We offer a competitive package including ...

Account Executive

Hiring Organisation
Ultralytics
Location
City of London, Greater London, UK
Ultralytics , we are shaping the future of Vision AI. Our groundbreaking YOLO (You Only Look Once) models are the world’s most widely used open-source object detection tools, empowering millions of developers and enterprises to build intelligent applications that see and understand the world. Now backed … hand in hand. Why This Role and Why Now Be part of a once-in-a-decade AI success story with an enormous open-source following and clear product-market fit. Join at the moment when Ultralytics is transitioning from foundation building to large-scale global growth. Sell ...

Senior ML Research Engineer

Hiring Organisation
Zettafleet
Location
City of London, Greater London, UK
would love to hear from you. Nice to have: Publications: At top-tier ML/CV/NLP conferences (NeurIPS, ICML, ICLR, CVPR, ICCV) Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. ...

Graduate ML Research Engineer

Hiring Organisation
Zettafleet
Location
City of London, Greater London, UK
would love to hear from you. Nice to have: Publications: At top-tier ML/CV/NLP conferences (NeurIPS, ICML, ICLR, CVPR, ICCV) Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. ...

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 ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, Greater London, UK
already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of ex-Palantir and ex-Open AI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging … experience working with cross-functional software development teams Experience shipping and iterating on production-grade software components professionally and/or in the open-source community Ability to write robust, well tested, and well-designed code that frequently gets deployed to users Strong understanding of product development ...

Telemetry and Observability Engineer

Hiring Organisation
Oscar Associates Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 475 - 515 Daily
systems Build and enhance observability tooling, including dashboards, monitoring systems, alerting frameworks, and reliability standards Develop and maintain telemetry solutions using OpenTelemetry and related open-source technologies Automate observability infrastructure using Terraform and infrastructure-as-code practices Integrate monitoring and observability into CI/CD pipelines and SDLC … Experience Experience in regulated or large enterprise environments Exposure to AI/ML-driven observability or proactive monitoring initiatives Contribution to or involvement with open-source observability projects If this sounds like a fit, APPLY NOW! Telemetry & Observability Engineer | Contract | £475-£515 p/d | Inside IR35 | London ...

Software Integration Engineer

Hiring Organisation
microTECH Global LTD
Location
London, UK
layers. Integration work for other compression solutions, such as VC6 and point cloud compression, into different video editing and creation applications. Engaging with the open-source community to contribute changes upstream to video player open-source projects and assist with their integration of LCEVC. Development activity ...

Senior Machine Learning Engineer

Hiring Organisation
OJ Digital
Location
Greater London, England, United Kingdom
primarily office led. 🚀 Key Responsibilities Design and implement state of the art instruction tuning and information retrieval methods Fine tune and deploy large open source LLMs in production Apply reinforcement learning approaches including SFT, DPO, PPO and GRPO Develop models that outperform closed source alternatives Break down … fine tuning and deploying LLMs in production Strong hands on reinforcement learning experience Familiarity with SFT, DPO, PPO and GRPO Experience working with large open source language models such as Llama Strong engineering fundamentals and ability to write clean, production ready ML code Experience generating, curating or synthesising ...

Computer Vision Engineer

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

Design Verification Engineer

Hiring Organisation
Platform Recruitment
Location
London Area, United Kingdom
supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation’s mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. Proficiency in Python ...

Enterprise Account Executive (Founding)

Hiring Organisation
Sauced
Location
London Area, United Kingdom
offices in San Francisco and an expanding EMEA presence. With ~55 employees globally, they've built one of the world's most widely used open source data labelling platforms — trusted by over 350,000 data scientists and ML engineers worldwide. Their platform enables enterprises to train, evaluate … business. You'll be expected to generate a portion of your own pipeline alongside strong inbound demand generated through their large and active open-source community — a genuine differentiator in terms of brand awareness and warm engagement. What You'll Need - A proven track record in complex, full ...

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 ...

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 ...

Staff Software Engineer

Hiring Organisation
ShareChat
Location
City of London, London, United Kingdom
large-scale models using tools such as Tensorflow or PyTorch is a plus. You stay up-to-date with the state-of-the-art open source infrastructure solutions applicable to designing and improving large scale recommender systems, data engineering, and machine learning You have a Master ...