1 to 25 of 32 Open Source Jobs in London

Engineering: Java Open-Source Data Infrastructure Package: £175k - £217k base + 15% bonus + options Location: UK remote-first. My client, a profitable, Series-D software company (circa 110 people, $40-45M ARR) behind one of the most widely-used open-source real-time data … levels deep: distributed systems, low-latency engineering, JVM performance, stream processing, or storage and replication internals. You've probably written or contributed to Java open source, spoken at conferences, and within the last couple of years you've personally worked a hard technical problem, not just funded one. ...

engineering and product delivery -Design, build and deliver new data products in response to operational needs -Develop, maintain and improve data pipelines. -Use predominantly open-source technologies to create practical data solutions. -Build solutions from the ground up within short and potentially changing delivery timescales. -Contribute to data … engineering within an Azure Stack Hub environment. -Evaluate or work with emerging technologies where relevant, including pipeline orchestration and graph database tools. Essential -Python -Open-source data engineering technologies -Data pipeline development -Linux or Unix -Continuous integration and continuous delivery -Containerisation -Kubernetes Preferred -Apache Airflow -OpenSearch -Azure -Azure ...

experience — proven ability to evolve existing platforms while simultaneously designing and delivering new systems; comfort making bold architectural decisions in both constrained legacy and open greenfield environments People leadership and talent development — demonstrated ability to attract, grow, and retain exceptional engineers and engineering leaders; a builder of teams … services domain knowledge — familiarity with analytical workflows, credit ratings processes, or how technology creates leverage in financial decision-making Technical thought leadership — contributing to open source, speaking at industry events, publishing engineering content, or establishing technical direction that influences well beyond your immediate team What We Offer ...

effectively with product squads and business partners, translate complex AI/ML concepts for non-technical stakeholders, and bring your whole self while remaining open to others' perspectives What Would Make You Stand Out: Cutting-edge AI research to production experience – Track record of taking breakthrough AI capabilities from … enterprise-grade ML systems with real users ML thought leadership and technical strategy – History of establishing technical direction for ML initiatives, contributing to open-source ML projects, speaking at AI/ML conferences, publishing research, or writing about practical applications of emerging AI technologies Multi-agent and agentic ...

. Secure-by-design development principles, including ISO 27001, NIST or OWASP. Experience within defence, national security or other highly regulated environments. Contributions to open-source AI/ML projects. Security Clearance Due to the nature of the work, applicants must be eligible to obtain UK security clearance ...

frameworks (MLflow, Kubeflow, Airflow). Familiarity with SQL, NoSQL, and distributed data technologies. Experience deploying AI models in production environments. Publications, patents, or open-source contributions in ML/AI. Benefits What We Offer: Competitive Salary Bonus Scheme Private Healthcare Insurance 25 Days Annual Leave + Bank Holidays ...

Google Cloud certifications , such as Developer, Solutions Architect or Security. Experience implementing cloud security practices including secure coding, threat modelling, compliance and incident response. Open-source contributions or a strong track record of technical knowledge sharing. Experience leading multi-team initiatives spanning infrastructure, application and platform engineering. Damia ...

level React Native or equivalent building native mobile from a React codebase Design system or component library ownership Consultancy or client-facing delivery background Open-source contributions, conference talks, or published technical writing Polyglot beyond Java Other Stuff NB: for non-UK Citizens; we cannot accept applications from ...

level React Native or equivalent building native mobile from a React codebase Design system or component library ownership Consultancy or client-facing delivery background Open-source contributions, conference talks, or published technical writing Polyglot beyond Java Other Stuff NB: for non-UK Citizens; we cannot accept applications from ...

agent orchestration, reasoning workflows, and agent-driven scientific discovery. Consistent record of innovation through publications in peer-reviewed venues, invention disclosures (IDFs), patents, or open-source contributions in machine learning or AI. Experience building ML platforms, reusable scientific computing frameworks, or internal tooling that accelerates delivery across teams. ...

effectively than being strictly tied to one programming language. Bonus Points Experience migrating legacy applications (e.g., Ruby/Python to Rust). Contributions to open-source projects in Rust, Ruby, or Python. Familiarity with WebAssembly (Wasm). If you are interested then kindly submit your resume at Prasanna ...

environments and like solving real problems and learning fast. Proven impact: youve built and scaled products, led projects that made a difference, contributed to open-source, or delivered results that truly moved the needle. Practical AI experience: some experience building with LLMs, retrieval, agents or related technologies ...

deception strategy, detection coverage, residual risk, and security improvements to senior stakeholders. Qualifications What you'll bring: Required Skills & Experience: Hands-on experience with: Open-source and commercial deception/honeypot platforms (e.g., Thinkst Canary, T-Pot, Cowrie, OpenCanary, Zscaler Deception) Advanced KQL for detection engineering and threat ...

infrastructure. Strong understanding of Network Functions Virtualisation (NFV) and cloud-native telecoms architectures. Hands-on experience with network orchestration platforms, including ETSI MANO/Open Source MANO (OSM). Experience managing Virtual Network Functions (VNFs) and Cloud Native Network Functions (CNFs). Strong experience with Kubernetes and containerised … networking concepts, IP networking and virtualised infrastructure. Experience troubleshooting complex carrier-grade network environments. Desirable Skills Experience within Mobile Core, RAN, Private 5G or Open RAN environments. Knowledge of ETSI NFV and SDN architectures. Experience creating or maintaining YANG-based descriptors. Experience integrating orchestration platforms with multiple cloud environments. ...

sufficient to support confident release decisions.? Tech stack Expertise in test automation using JavaScript based test frameworks such as WebdriverIO, Playwright or Cypress Open-source JS based libraries or frameworks for API testing, or Postman. Jmeter or K6 for load and performance testing Continuous integration pipelines using Jenkins ...

focussed team, gaining exposure to: Implementing software solutions including design, development and testing Using a wide range of technologies, specialising in the use of open-source libraries and components Utilising tools such as GitLab to build continuous integration pipelines, which help monitor and ensure software quality and security ...

London - Hybrid (4 Days on-site, 1 day WFH each week) Inside IR35 Contract Are you a build and deployment engineer who can open up the C# code behind a pipeline and fix it yourself? That combination is exactly what's needed here. You'll join the Platform Engineering … function of one of the world's largest financial groups, owning the on-premises toolchain that takes software from source code to production. GitHub Enterprise, TeamCity, JFrog Artifactory and Xray, and Octopus Deploy, all integrated with ServiceNow change and vulnerability management. In a regulated banking environment, every build ...

join our close knit Linux development team. A genuine interest in product development is key as everyones contribution counts in our informal and open Agile working environment. Principle duties: Development and maintenance of Linux based operating systems Work on Linux Distros with a focus on security Configure and customize … Debian package management Bash scripting Object oriented programming in C++ A degree in STEM or significant programming experience Desirable Python programming Linux kernel programming Open source development Security infrastructure Why Join Us: Shape the future of secure endpoint technology. Work on high-impact projects for global, high-profile ...

experience operating multi-tenant analytical systems at significant scale. Strong understanding of database internals, query optimisation, distributed architectures, sharding and replication. Experience contributing to open-source database projects or working at source-code level would be highly advantageous. A proven track record building scalable, observable and resilient ...

data integration approach Experience being a hands-on data architect Experience with Big Data technologies Experience with Microsoft Azure and services Experience with both open source and vendor data platforms. Experience with data architecture, architectural concepts, methodologies and approaches. Experience with microservices architecture Experience of designing for both ...

Some consultancy or client-facing experience, or a strong interest in moving into it Desirable: Vector databases, embeddings, fine-tuning Cloud experience (AWS preferred) Open-source contributions or visible AI side projects Experience shipping AI-powered features to production This is not a research role. We're looking ...

when something isn't worth building Desirable Skills * Vector databases, embeddings, fine-tuning * Cloud experience (AWS/Google preferred) * Former founder or startup experience * Open-source contributions or visible AI side projects ...

tools such as SLURM and Kubernetes The ideal candidate would have: Strong background in high-performance computing environments and infrastructure design Experience working with open-source technologies and software-defined data centres Knowledge of HPC software stacks including MPI, CUDA, compilers, and scientific libraries Familiarity with containerisation ...

Some consultancy or client-facing experience, or a strong interest in moving into it Desirable: Vector databases, embeddings, fine-tuning Cloud experience (AWS preferred) Open-source contributions or visible AI side projects Experience shipping AI-powered features to production This is not a research role. We're looking ...

wider Claude ecosystem . OpenAI and GPT-based technologies . AWS Bedrock . Google Gemini and associated AI technologies . Enterprise use of open-source large language models . Agentic development frameworks and tooling . AI-assisted software engineering environments . Prompt and context engineering . API-driven ...