1 to 25 of 33 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. ...

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 ...

intuitive trading technology solutions. We are looking for a Senior Software Development Engineer in Test to join our team and help develop our open-source and proprietary platform products. YOU ARE: Self-directed, with the ability to define and manage priorities independently. A great team player who loves ...

Azure including Bedrock, SageMaker, Azure AI Search), workflow orchestration (Airflow), and API development for ML systems Software development fundamentals – Deep understanding of automated testing, source version control, code optimization, software architecture, and building scalable, maintainable systems Technical leadership through influence – Track record of leading project initiatives, mentoring team members … management systems experience – Experience developing or integrating ML functionality for document management systems, content platforms, or document intelligence solutions Technical thought leadership – Contributions to open source ML projects, conference presentations, published research, blog posts about practical ML applications, or active participation in the ML engineering community Financial services ...

techniques. Experience with vector databases, semantic search, knowledge graphs or related technologies. Familiarity with AI governance frameworks, security standards or ISO 42001. Contributions to open-source projects, research or the wider AI engineering community. Experience supporting presales, shaping AI propositions or identifying opportunities to commercialise AI capabilities. ...

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 ...

/JavaScript, modern API frameworks, front-end frameworks, automated testing and software design patterns. Claude Code or comparable AI coding assistants integrated with enterprise source control and CI/CD workflows. MCP client/server development or comparable secure tool-integration patterns for agentic applications. Agent orchestration, tool calling … DevSecOps Set yourself apart: Production delivery of Claude-based applications, agents or Claude Code enablement. Published MCP servers, reusable agent components, evaluation harnesses or open-source contributions. Experience building developer platforms or AI-enabled SDLC accelerators. Experience delivering AI solutions in regulated environments. Relevant cloud, software engineering, machine ...

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 ...

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 ...

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 ...

data architect (only when needed) with programme languages like Java, Scala, Python, or architecture-as-code such as linkml, turtle, owl 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 ...

data architect (only when needed) with programme languages like Java, Scala, Python, or architecture-as-code such as linkml, turtle, owl 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 ...

hands-on data architect (only when needed)with programme languageslikeJava, Scala,Python, or architecture-as-code such aslinkml, turtle, owl Experience with both open source and vendor data platforms Experience with data architecture, architectural concepts,methodologiesand approaches Experience with microservices architecture Experience of designing for both structured ...

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 ...

Istio, Linkerd) and workload identity. Experience in detection engineering, logging pipeline development, or SIEM tuning in containerised environments. Experience in contributing to security-focused open-source projects or internal security platform tooling. Responsibilities: Deploy, configure, and manage cloud security platform tools and technologies, including Security Information and Event ...

Istio, Linkerd) and workload identity. Experience in detection engineering, logging pipeline development, or SIEM tuning in containerised environments. Experience in contributing to security-focused open-source projects or internal security platform tooling. Responsibilities: Deploy, configure, and manage cloud security platform tools and technologies, including Security Information and Event ...

Istio, Linkerd) and workload identity. Experience in detection engineering, logging pipeline development, or SIEM tuning in containerised environments. Experience in contributing to security-focused open-source projects or internal security platform tooling. Responsibilities: Deploy, configure, and manage cloud security platform tools and technologies, including Security Information and Event ...

Aeron - our flagship high-performance messaging infrastructure. Hydra - our developer framework for accelerating the development and delivery of trading systems. Artio - our market-leading open-source FIX engine. Aeron Sequencer - replicated state machines at scale. YOU ARE: A great team player who loves sharing knowledge and learning from ...

only when needed with programme languages Java, Scala and Python) 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 ...

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 ...

technical leadership role. Experience working on embedded security design and development. Experience in application security, cryptography, systems security or malware analysis. Experience with open source development. Responsibilities: Work on next generation Pixel security designs and projects. Harden embedded system software components critical to Pixel security. Develop embedded security ...

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 ...