1 to 25 of 149 Open Source Jobs in London

Legal Counsel

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
business that generates revenue directly: the AGPL‐3.0/Enterprise dual‐licensing model behind YOLO. Every company using Ultralytics’ models commercially either open‐sources their entire project under AGPL‐3.0 or buys an Enterprise license. Supporting compliance, converting to contract, and negotiating the Enterprise agreements themselves – is core … background compliance task. We need someone who’s done this kind of work before, not someone learning opensource licensing on the job. What you’ll do Opensource licensing and IP Own the AGPL‐3.0/Enterprise licensing model end to end: detect likely violations ...

Site Reliability / Gitops Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the world's leading … automation‐first” technologist with a passion for Linux to build a career with Canonical and drive the success with those leveraging Ubuntu and open source products. If you have experience of IT operations automation, Infrastructure as Code and a passion for technology, then you will enjoy working with ...

Public Sector Account Executive (Education)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
usage-based pricing, and modern data architectures. Solve Complex Problems: Move beyond simple transactions to address the intricate data challenges our customers face. Champion Open Source: Articulate the value of our advanced commercial features while advocating for our Open-Source offerings. Identify New Use Cases: Showcase … date. Ability to create alignment across teams to accelerate deals. AI Mindset: Use new technologies for performance advantage and deal structuring. Open-Source Appreciation: Enthusiasm for the Open-Source model and the community relying on our solutions. Additional Information - We Take Care of Our People ...

Senior Software Engineer, Docker Agents (London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
implement systems that leverage Docker containers as the ideal runtime for AI agents, ensuring isolation, scalability, and portability. Expand cagent: maintain and evolve the opensource cagent project, adding new capabilities for containerized agent deployment and orchestration. Agent runtime development: build robust infrastructure for packaging, deploying, and managing … agent performance, reliability, and containerized deployment effectiveness. Rapid prototyping: iterate quickly on new agent capabilities and deployment patterns, moving from concept to production efficiently. Open source community: engage with the cagent community, review contributions, and help grow the ecosystem. Cross‐functional collaboration: work closely with product managers, designers ...

Enterprise Account Executive (UK)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series … contributions can shape how this technology shows up in the real world. Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open ...

Staff Software Engineer, Docker Agents (London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
implement systems that leverage Docker containers as the ideal runtime for AI agents, ensuring isolation, scalability, and portability. Expand cagent: Maintain and evolve the open-source cagent project, adding new capabilities for containerized agent deployment and orchestration. Agent Runtime Development: Build robust infrastructure for packaging, deploying, and managing … agent performance, reliability, and containerized deployment effectiveness. Rapid Prototyping: Iterate quickly on new agent capabilities and deployment patterns, moving from concept to production efficiently. Open Source Community: Engage with the cagent community, review contributions, and help grow the ecosystem. Cross‐functional Collaboration: Work closely with product managers, designers ...

Salesforce/NetSuite Engineering Manager, Commercial Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Salesforce/NetSuite Engineering Manager, Commercial Systems Home based - EMEA Canonical is a leading provider of open-source software and operating systems for global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation … skills of their direct reports, and who has the drive to deliver. This is an exciting opportunity to work with great people and exciting open-source solutions on innovative engineering solutions supporting Canonical's growth. The Commercial Systems unit is conceived as six engineering teams that closely collaborate ...

Engineering Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
London, you'll be the founding leader of a team working on two products: Hegel , our property-based testing library family, and Bombadil , our open-source browser testing product. This isn't a "manage the roadmap and attend standups" kind of role — you'll be in the code … London team — hire exceptional engineers, onboard them well, and create the kind of environment where they do the best work of their careers. Foster Open Source Communities – Further our OSS testing frameworks by interacting with the community to build sustainable and rich relationships between Antithesis, our users ...

Enterprise Architect - AI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
trail, and approval‐gate processes for production AI systems. Security & Cloud AI‐specific security fundamentals: model security, prompt‐injection defenses, supply chain security for opensource/open‐weight models. Solutions‐architect level expertise in at least one hyperscaler (AWS, Azure, or GCP), including their native …/AI/ML or related) beneficial but not required given sufficient hands‐on depth. Continuous, demonstrable learning in AI — publications, opensource contributions, conference speaking, or lab‐based experimentation are all valued signals. WWT is an Equal Opportunity Employer Employment decisions are made without regard to race ...

Founding Engineering - Top London Software House

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 per annum
solving difficult problems rather than following established processes. Strong Signals First-class degree or equivalent academic achievement. Competitive programming, mathematical competitions or research experience. Open-source contributions or technically ambitious personal projects. Experience building products, platforms or infrastructure from scratch. Experience at high-performing technology companies, research labs … NoSQL, PostgreSQL, System Architecture, Technical Leadership, Engineering Strategy, Software Reliability, Performance Optimisation, Automation, DevOps, CI/CD, AWS, Azure, Google Cloud, Kubernetes, Docker, Open Source, GitHub, Research Engineering, Machine Learning Engineering, AI Engineering, Deep Learning, Mathematical Modelling, Competitive Programming, Hackathons, Research Projects, Technical Projects, Product Development, MVP Development ...

Manager, Lead Research Scientist, LLM Agents (Foundational Research)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
curious and open-minded individual with an interest in conducting state-of-the-art foundational machine learning research? Thomson Reuters Labs is seeking Research Scientists with a passion for building complex agent-based AI systems in a data-rich, complex academic environment driven by real-world problems. Foundational Research … model training. Extensive experience working on agent‐based systems, tool‐using AI, or multi‐agent coordination in LLM contexts (e.g., startup, industry, or extensive opensource experience). Strong software and/or infrastructure engineering skills and ensuring well‐managed software delivery, as evidenced by code contributions ...

Senior Software Enginner

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
distributed systems, data pipelines, and platform architecture. Establish CI/CD pipelines, Infrastructure as Code, automated testing, and deployment practices. Evaluate and integrate open-source technologies and distributed data frameworks. Mentor engineers and promote engineering excellence across the team. Work closely with architecture, product, security, and external stakeholders. … secure data access models. Exposure to event-driven architectures and streaming technologies such as Kafka, Flink, or Spark Streaming. Experience evaluating or contributing to open-source technologies. ...

Security Architect

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650 per day
candidate will have come from a strong technical background, and have an understanding of attack vectors for high threat environments, across both proprietary and open-source technology stacks. You will advise and enable technical teams to make security decisions and provide advice and guidance, ensuring the effective … programmes, projects or a product-centric organisation. You will have a good understanding of a broad range of industry-standard technologies, both proprietary and open source, across a diverse range of Microsoft and Linux-based deployments, across physical, virtual and containerised compute. You will have experience in securing ...

AI Platform engineer

Hiring Organisation
Nextech Group Limited
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
/SQS for async processing of high-volume inference requests Implement observability and cost-tracking for token usage across multiple LLM providers (Anthropic, OpenAI, open-source models via vLLM) Own database performance for both relational (Postgres) and vector (pgvector/Pinecone) workloads Collaborate with ML engineers on model … limits, streaming responses, token cost optimisation) Solid understanding of API design, security, and scalability best practices Nice to Have: Experience fine-tuning or evaluating open-source models Familiarity with agentic frameworks (function calling, tool use, MCP) Prior startup/scale-up experience Benefits: 25 days holiday + bank ...

(DV cleared) Data Architect (AWS/Cyber)

Hiring Organisation
Methods Business and Digital Technology Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 Daily
data sources and technologies Working experience in migrating workloads from on premise to cloud environment Experience in monitoring distributed infrastructure, using AWS tools or open source ones Experience in monitoring distributed infrastructure, using AWS tools or open source ones such as CloudWatch, Prometheus ...

Director, Data Science, Digital & Insights, Strategic Communications

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
integral part of a focused team where you can make a real impact. You’ll be surrounded by an open, collaborative culture that embraces diversity, recognition, professional development and, most importantly, you.Are you ready to make your impact?**About The Role**We are looking for a talented, ambitious … requires a significant level of technical knowledge relating to, for example:* AI platforms and solutions across algorithmic and agentic categories (e.g., AI vendor APIs, open-source tooling such as LlamaIndex, HuggingFace, Claude Code or similar)* Manipulating datasets in Python, SQL and Excel* Deep familiarity with GitHub to collaborate ...

Applied Control Researcher

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
monitors, including chain-of-thought reasoning, structured outputs, and multi-step verification Future projects (likely not in the first 6 months) Fine-tune smaller open-source models to create efficient, specialized monitors for high-volume production environments Design and build agentic monitoring systems that autonomously investigate logs … based on empirical findings (e.g., prompting, scaffolding, agent design, fine-tuning, or RL). Strong Python programming skills Demonstrated ability to work independently on open-ended research problems Bonus: Experience with AI evaluation frameworks, in particular Inspect (though other frameworks are relevant as well) Familiarity with AI safety concepts ...

ML Research Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
process over 100M+ API calls every month We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model We’re a small, highly focused team. If you want to work deeply on hard problems, see your work ship to production … prior work with safety/moderation datasets, policy/rule systems, or high-volume logging/observability. A big plus: A public builder footprint: open-source models, datasets, or training frameworks on HuggingFace/GitHub, benchmarks, papers (workshop or main conference), or technical posts with real usage. Experience ...

Regional HR Manager - EMEA

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. Our customers include the world's leading … handling and overseeing complex ER matters across multiple jurisdictions Fluent in business English (written and spoken) Self‐motivated, organized, accurate, confident, authentic, results‐orientated, open‐minded, enthusiastic and energetic Willingness to travel up to 4 times a year for internal events Nice‐to‐have skills Experience with immigration policies ...

Applied AI ML Director

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Machine Learning team in Corporate and Investment Banking is transforming the operations of the world’s largest bank by leveraging the latest advancements in open source artificial intelligence and proprietary frontier models. To facilitate rapid growth, the team is focusing expertise in key "Domains" that are crucial … Domains. We seek an team member with a strong foundation in artificial intelligence and software engineering, who has made significant contributions to open source projects and/or led the development and maintenance of AI systems vital to business operations. As an Applied AI ML Director within ...

Business Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
onboarding of new team membersWillingness to travel 25% of the timeMinimum Qualifications3+ years as a software engineer building and shipping production quality codeExperience with open source languages such as PHP, Python, Java, or JavaScript FrameworksExperience with writing and shipping reliable, scalable, and efficient code, with an emphasis … joining MetaPreferred QualificationsDemonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologiesExperience contributing to open source projects, shared code repositories, and/or personal projectsExperience working in highly collaborative environmentsClient facing and/or experience communicating to an audienceExperience ...

Solution Architect (SC)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Contribute to the practice development through thought leadership and development of innovative services and offerings. We expect you to have: Strong working knowledge of open source, open standards and cloud technologies. Good understanding of architectural concepts, methodologies and approaches. Excellent working knowledge of design patterns and modelling ...

Head of Legal - Octant.app

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
developed under the Golem Foundation, designed to reimagine funding mechanisms for public goods in the Web3 ecosystem. We sit at the intersection of decentralization, open-source coordination, and blockchain innovation. Our mission is to empower communities and prioritize public good funding through novel governance and incentive systems. What … face. Maintain up-to-date knowledge of relevant developments in crypto regulation, DAOs, and digital asset law. Ensure legal frameworks support public goods funding, open-source contributions, and decentralization principles. Manage relationships with external legal counsel in various countries. Qualifications 5+ years of legal experience, preferably in Web3 ...

Partner Technical Architect - Agentforce

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
software, agents, automations, internal tools, or technical demos. You can show your work: GitHub repos, demo apps, notebooks, architecture docs, eval harnesses, demo orgs, opensource contributions, or equivalent artifacts. You learn new platforms by building with them, not by waiting for perfect documentation. You can move fast …/AI experience into partner‐ready Agentforce patterns. Experience working with system integrators, partner delivery teams, or complex enterprise implementation programs. Published technical work: opensource projects, internal platform docs, talks, blog posts, or reusable architecture patterns. Experience creating maturity models, readiness checks, production‐readiness scorecards, or technical ...

Partner Technical Architect - Agentforce

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
software, agents, automations, internal tools, or technical demos. You can show your work: GitHub repos, demo apps, notebooks, architecture docs, eval harnesses, demo orgs, opensource contributions, or equivalent artifacts. You learn new platforms by building with them, not by waiting for perfect documentation. You can move fast …/AI experience into partner‐ready Agentforce patterns. Experience working with system integrators, partner delivery teams, or complex enterprise implementation programs. Published technical work: opensource projects, internal platform docs, talks, blog posts, or reusable architecture patterns. Experience creating maturity models, readiness checks, production‐readiness scorecards, or technical ...