76 to 94 of 94 Open Source Jobs in London

Frontend Developer

Hiring Organisation
Albert Bow
Location
London Area, United Kingdom
spoken English Nice to Have Experience with additional programming languages Test automation experience Multi-language application development Knowledge of digital assets/cryptocurrency ecosystems Open-source contributions, technical writing, or community involvement What’s On Offer Competitive base salary + annual performance bonus Hybrid working (London-based) Home ...

Head of Engineering

Hiring Organisation
Lightdash
Location
City of London, London, United Kingdom
moving at startup speed Establish a culture where iteration is celebrated and perfectionism is challenged How we work at Lightdash We build in public. Open source means moving fast with shared context. We challenge problems, not people. No blame, just solutions. We’re highly collaborative. Independent ...

Strategy and Operations

Hiring Organisation
Foresight Data Machines
Location
London, England, United Kingdom
people with the following attributes: Exceptional ability. Whether in work, school, side projects, or elsewhere, you will have demonstrated exceptional ability. We are open minded about the exact form this takes. Some examples we look for: You have played a key role in an early stage startup You have … hackathons, music, sport, math or other competitions You have an impressive side project, like a popular blog or open source library. Excellent communication in speech and writing. Conscientiousness. You want to do good work, regardless of oversight. You are excited to have freedom to work without too much ...

Director of AI Systems & Foundation Models

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £180,000 per annum
decisions across models, tooling and external partnerships Sets standards for model evaluation, bench-marking, validation and data quality Represents the organisation externally through publications, open-source contribution or recognised thought leadership What success looks like Reusable AI systems that are actively leveraged across multiple high-value applications Models … Mindset and style Comfortable with ambiguity and research uncertainty Commercially and impact-oriented, not research-for-research's-sake Curious, rigorous and opinionated, but open to challenge Sets a high bar for quality, documentation and reproducibility Motivated by building things that matter, not just publishing them Why this role ...

Founding Product Engineer (£70K - £120K + Equity) at cubic

Hiring Organisation
Jack & Jill
Location
Greater London, England, United Kingdom
/Next.js ecosystem and a passion for crafting high-quality user experiences and product outcomes. Proven self-starter mentality evidenced by significant side projects, open-source contributions, or previous experience in early-stage startups. Who are Jack & Jill? Ok, I'll go first. I'm Jack … Jack will find you excellent alternatives. All for free. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which ...

Python Developer

Hiring Organisation
CODEVERSE LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 per annum
validation, and transformation utilities Ensure outputs are analysis-ready and consistent Write clear documentation, examples, and usage guides Produce production-quality code suitable for open-source or public distribution Package and publish the library to PyPI Required Skills & Experience Strong Python development experience Experience working with REST APIs ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £115000/annum
commercial C++ expertise Significant bias towards C++ development Genuine passion for writing clean, performant code Bonus if : Commercial C++ experience Have worked on open-source projects Have an activity portfolio of personal C++ projects Full details are available. Please don't hesitate to get in touch. ...

Software Engineer C++

Hiring Organisation
Platform Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
commercial C++ expertise Significant bias towards C++ development Genuine passion for writing clean, performant code Bonus if : Commercial C++ experience Have worked on open-source projects Have an activity portfolio of personal C++ projects Full details are available. Please don't hesitate to get in touch. ...

OSINT Analyst

Hiring Organisation
IO Associates
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 30,000 - 60,000 Annual
corporate clients in finance, law, and insurance. Their work includes due diligence, tracking counterfeit products, and producing intelligence for legal cases. Key Responsibilities: Conduct open-source investigations using a variety of online tools and platforms. Compile findings into detailed, professional reports for clients and legal proceedings. Support ...

Senior Backend Engineer

Hiring Organisation
Plexus Resource Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
with Typescript, Node, AWS 4 years+ writing production software. Web3 experience Experience creating and sustaining a production system at scale. Significant public code or open source contributions. Benefits: Competitive stock option grant. Remote first environment. High ownership and autonomy. Work directly with cross-functional teams. If youre interested ...

Frontend Engineer

Hiring Organisation
Albert Bow
Location
London Area, United Kingdom
JavaScript (ES6+) and revision control systems Team player with excellent communication skills and focus on delivery Bonus: crypto/digital asset knowledge, test automation, open-source contributions Benefits Competitive salary with performance bonuses Flexible hybrid working and home office stipend Training, mentorship, and development opportunities Annual leave, healthcare ...

Cloud Data Engineer

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
collation and storage of data for critical client projects. How to develop and enhance your knowledge of agile ways of working and working in open source stack (PySpark/PySql). Quality engineering professionals utilise Accenture delivery assets to plan and implement quality initiatives to ensure solution quality ...

Director of Developer Relations

Hiring Organisation
Ripple
Location
London, England, United Kingdom
technologies, APIs, developer platforms, or emerging financial technologies Background in building developer communities around new technology categories, particularly in fintech or blockchain Experience with open-source ecosystems, community management, and collaborative development practices Public speaking experience at industry conferences and events, particularly fintech or blockchain conferences Content creation ...

Ecosystem Growth Manager

Hiring Organisation
Metrics Recruitment
Location
South London, UK
Employment Type
Full-time
Metrics Recruitment is partnering with a global blockchain infrastructure organization building open-source technology for next-generation financial markets. We are hiring a Senior Ecosystem Growth Manager (Europe) to drive real-world adoption of a high-performance Layer 1 network across the region. This role focuses on accelerating … across fintech, TradFi, VCs, and ecosystem partners throughout Europe. Key Responsibilities: Execute ecosystem growth strategy across European markets, adapting to regulatory and commercial dynamics. Source and support startups and developers building on the network. Structure and manage strategic partnerships, accelerators, and VC relationships. Build top-of-funnel pipeline through ...

Full Stack Developer

Hiring Organisation
83zero Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
+ equity We're hiring for a UK cyber security startup building a platform that helps organisations detect malicious open-source code and secure their software supply chain in real time. The product continuously scans dependencies, surfaces risk clearly, and helps teams prevent compromised packages from entering ...

SailPoint Tester

Hiring Organisation
CodeConvergence
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
identify a tester with this area of knowledge . Client is to use Selenium and Java but they are also flexible with some other open source tool if it is more suitable and faster but the candidate needs to bring in that thought process Very Strong experience ...

Founding Sales Development Representative

Hiring Organisation
Aurasell AI
Location
Greater London, England, United Kingdom
Love Prior SDR/BDR experience (internship to 2+ years) or other quota-carrying background Familiarity with cloud/SaaS, data tooling, or open-source ecosystems (nice to have) Comfort testing new channels (events, communities, partners) and documenting what works Why Aurasell High impact & visibility: Direct access ...

Product Manager

Hiring Organisation
Hollbridge
Location
London Area, United Kingdom
customer and ecosystem requirements into technical deliverables Lead proof-of-concepts, trials, and reference integrations Support commercial engagements with strategic partners Drive adoption within open-source frameworks and industry platforms This is a technically focused product role suited to someone comfortable working with SDKs, APIs, reference integrations ...

Data Visualisation Engineer | JavaScript | TypeScript | 2D Graphics | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
shape how developers around the world tell visual stories with data. You’ll join a highly respected, product-led engineering team building a modern, open-source JavaScript charting library used at serious scale, from complex enterprise systems to high-stakes decision-making tools. Your mission: Raise the visual ...