951 to 975 of 1,233 Permanent Open Source Jobs

Tools & Compilers Research and Development Internship, Flexible

Location
Greater London, England, United Kingdom
optimiser, adding feedback-directed optimisation, and improving profiling, debugging, documentation, and build automation. A large portion of the team’s work is open source, and Jane Street upstreams changes to the mainstream OCaml compiler where possible. What the internship looks like You spend roughly 10–12 weeks ...

Technical Solutions Consultant

Hiring Organisation
Profile 29
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
need to be dynamic, personable, have excellent communication skills, passionate about technology and enjoy being client facing.Ideally, you will have encountered some enterprise or open-source workflow/orchestration products before, but soft skills and general technical credibility are more important. They will expose you to their specific ...

Technical Solutions Consultant

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
need to be dynamic, personable, have excellent communication skills, passionate about technology and enjoy being client facing.Ideally, you will have encountered some enterprise or open-source workflow/orchestration products before, but soft skills and general technical credibility are more important. They will expose you to their specific ...

Technical Solutions Consultant

Location
London, United Kingdom
dynamic, personable, have excellent communication skills, passionate about technology and enjoy being client facing. Ideally, you will have encountered some enterprise or open-source workflow/orchestration products before, but soft skills and general technical credibility are more important. They will expose you to their specific technologies when ...

Research Engineer — Applied Science (ML)

Location
Greater London, England, United Kingdom
have An advanced degree (MSc/PhD) in a quantitative field; experience with large-scale generative models orspatial, time-series, or geometric data; open-source contributions or publications at NeurIPS, ICML, ICLR, or CVPR. #J-18808-Ljbffr ...

Senior Verification Engineer

Location
Greater London, England, United Kingdom
Contribute to the architecture roadmap.* Facilitate collaboration between hardware and software teams.**Experience:*** Prior experience developing verification plans.* Experience with AXI protocols.* Familiar with open-source verification tools (Cocotb, Verilator) as well as commercial EDA tools.* Experience with scripting languages (Python, Tcl) for automation.* Familiar with CI/ ...

GIS Manager

Location
City Of London, England, United Kingdom
hybrid working with three days per week in our London office About Us Praetorian Connections Ltd (PCL) is a leading provider of language-enabled Open Source Intelligence (OSINT), supporting geopolitical, security, and risk-focused decision making. We are currently recruiting for a GIS Manager. The successful candidate will ...

GIS Manager

Location
Slough, England, United Kingdom
hybrid working with three days per week in our London office About Us Praetorian Connections Ltd (PCL) is a leading provider of language-enabled Open Source Intelligence (OSINT), supporting geopolitical, security, and risk-focused decision making. We are currently recruiting for a GIS Manager. The successful candidate will ...

Founding Engineer - Chief of AI and Computer Vision

Location
Salisbury, England, United Kingdom
testing tools and frameworks for AI-driven systems Intuitive problem-solving skills with the ability to adapt on the fly Familiarity with commercial/open source UAV flight controllers and firmware. What you'll get Significant Equity – as a founding team member, you will own a significant stake ...

Senior Magento Developer

Location
Manchester, England, United Kingdom
Translate business requirements into clear technical briefs Own release coordination and environments so nothing lands in production untested Essential 5+ years commercial Magento 2 (Open Source or Adobe Commerce) development, ideally as a contractor Strong PHP 8.x and deep knowledge of Magento architecture: modules, plugins, observers, dependency injection ...

Senior Product Engineer (Backend)

Location
Greater London, England, United Kingdom
communicate technical ideas to the wider team and influence stakeholders across Engineering, Product and Design Nice to have: Experience contributing to, or participating in open source projects An interest or experience in mentoring other members of the team Experience working with data-rich backend applications, or processing large ...

Senior User Researcher – AI

Location
United Kingdom
evaluating human-in-the-loop or escalation workflows Familiarity with accessibility research methods and inclusive design principles Exposure to research repositories, tooling, or open-source UX research communities #J-18808-Ljbffr ...

CFD Engineer - Process

Location
Silverstone, England, United Kingdom
Ability to deliver accurate, high‐quality work under tight deadlines Strong communication skills and ability to engage with technical stakeholders Experience with commercial/open‐source CFD solvers Experience developing automated workflows or optimisation pipelines A team like no other. The Cadillac Formula 1® Team challenges conventions ...

AI Security Researcher/Research Engineer

Location
Greater London, England, United Kingdom
consider some exceptions with industry experience Skills That Will Set You Apart from the Competition Knowledge of AI Systems (pipelines, security evaluation, etc.) Open source projects on security/privacy Experience with confidential computing and ZKP/SMPC protocols Ph.D. in computer science from a top-tier school ...

Frontend Engineer

Location
Greater London, England, United Kingdom
design systems, component libraries, or design tokens at scale Interest in financial technology, fintech UX, or regulated-industry product design Contributions to personal or open-source projects, or a public design portfolio Familiarity with agentic coding/working, such as Cursor/Antigravity/Claude Interest in Artificial ...

Data & Analytics Lead

Location
United Kingdom
anomaly detection to product and business questions. A strong public track record in the DeFi data ecosystem, such as high‐quality Dune dashboards, research, open‐source contributions, or community analytics. #J-18808-Ljbffr ...

Senior Backend Engineer

Location
United Kingdom
similar) Experience with iOS development or mobile development using React‐Native Experience developing and maintaining protocols Experience with decentralised identity, DIDComm, encrypted messaging protocols Open‐source contributions to Web3, Account Abstraction, Decentralised identity, Cryptography Equal Opportunity We are committed to equal employment opportunity and believe that diverse teams ...

Postdoctoral Researcher - AI Scientist & Computational Cancer Biology

Location
Oxford, England, United Kingdom
computational research within the programme, developing and applying artificial intelligence and computational biology approaches to large-scale cancer datasets. They will use frontier and open-source AI models, develop AI models and agentic scientific systems, and integrate genomic, immunological and experimental data to improve cancer vaccine target discovery ...

Software Developer, Offers

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
full stack, the role focuses on Golang, TypeScript, React, SQL and Kafka, with systems deployed to GKE. You will tackle complex technical challenges, explore open-source technologies, and bring innovative ideas to life in a collaborative, delivery-driven setting. This role is eligible for inclusion in our hybrid ...

Senior / Principal Rust Engineer

Location
Greater London, England, United Kingdom
exchange or HFT-grade systems Async Rust and Tokio for control-plane and tooling work, distinct from the hot path Experience contributing to open-source or internal frameworks What we offer Work on a high-profile, long-term programme with a global financial leader. You'll have ...

Solution Architect (8 Month FTC)

Location
Greater London, England, United Kingdom
working and building relationships with all levels of seniority, from clients to dev teams. It's helpful if you also have: Good knowledge of open source technologies (in full-stack environments) and stretching into code management, testing and deployment tools You have worked for a professional services business ...

Software Developer, Offers

Location
Hempstalls, England, United Kingdom
full stack, the role focuses on Golang, TypeScript, React, SQL and Kafka, with systems deployed to GKE. You will tackle complex technical challenges, explore open-source technologies, and bring innovative ideas to life in a collaborative, delivery-driven setting. This role is eligible for inclusion in our hybrid ...

Software Engineer

Location
Greater London, England, United Kingdom
backend and frontend technologies Openness to new technologies and creative solutions Comfortable working within a fast-paced, high growth environment Preferred Qualifications Contribution to open-source projects Experience with Agentic Coding Tools 2-5 years of relevant software engineering experience Yext is an equal opportunity employer committed ...

Solution Architect (8 Month FTC)

Hiring Organisation
Hackajob Ltd
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
/working and building relationships with all levels of seniority, from clients to dev teams. Its helpful if you also have: Good knowledge of open source technologies (in full-stack environments) and stretching into code management, testing and deployment tools You have worked for a professional services business ...

Agent/ Data Engineer

Location
Greater London, England, United Kingdom
frameworks Familiarity with observability, logging, and evaluation of LLM-based systems Experience working closely with design or research teams on conversational UX Contributions to open-source AI or data tooling projects Our Principles Trust We earn confidence through consistent delivery, thoughtful collaboration, and transparent communication. That extends ...