1 to 25 of 113 Open Source Jobs in Central London

Hands-on experience with: · Developing data pipelines (Snowflake), writing complex SQL queries. · Building ETL/ELT/data pipelines. · Kubernetes and Linux containers (e.g., Docker). · Related/complementary open-source software platforms and languages (e.g., Scala, Python, Java, Linux). · Experience with both relational (RDBMS) and non-relational databases. · Analytical and problem-solving skills applied to big More ❯

the needs and interests of developers Automation Strong focus on automating repetitive tasks to increase efficiency Inner and Open Source Contribution Encouraging contributions to both internal and opensource projects You May Be a Fit If You have at least 6 years of experience working in a professional environment as a software engineer You have led the design and … mix of private and public clouds Terraform We build infrastructureascode tooling by publishing Terraform modules and providers We manage state and Terraform execution on Terraform Enterprise server Sentinel and Open Policy Agent OPA We use policyascode to build compliant and secure infrastructure More ❯

Doing Leading a growing team (currently 2 engineers + external partners) across complex data and cloud engineering projects Designing and delivering distributed solutions on an AWS-centric stack, with open-source flexibility Working with Databricks, Apache Iceberg, and Kubernetes in a cloud-agnostic environment Guiding architecture and implementation of large-scale data pipelines for structured and unstructured data … someone that is adaptable Tech Stack Snapshot Languages: Python Cloud: AWS preferred, cloud-agnostic approach encouraged Data: SQL, Databricks, Iceberg, Kubernetes, large-scale data pipelines CI/CD & Ops: Open source tools, modern DevOps principles Why Join? Impactful Work – Help solve security problems that truly matter Ownership & Autonomy – Freedom to shape the stack and drive strategy alongside the More ❯

enjoy solving complex challenges, we would love to hear from you. Nice to have: Machine Learning: Experience in generative models, LLMs, multi-modal models and Deep Learning more generally. Open-source: Contributions to and experience in open-source projects. Front-end: Experience with TypeScript and front-end libraries such as React or Next.js. Startup experience: Experience More ❯

enjoy solving complex challenges, we would love to hear from you. Nice to have: Machine Learning: Experience in generative models, LLMs, multi-modal models and Deep Learning more generally. Open-source: Contributions to and experience in open-source projects. Front-end: Experience with TypeScript and front-end libraries such as React or Next.js. Startup experience: Experience More ❯

of our technology initiatives. Duties The successful candidate will develop, deploy, and maintain scalable, secure, and reliable services based on tools such as Docker, Kubernetes, Rocket.Chat, Jitsi, and similar open-source technologies. You'll be part of a multidisciplinary team building communication and collaboration platforms that may be deployed on-premise or in secure cloud environments. Develop and More ❯

with Linux and/or Windows systems About you (ideally): • Demonstrate a working knowledge of DevOps practices such as CI, CD, Infra as Code, Cloud, Monitoring • A passion for open-source programming or commercial tooling • A strong background in leadership of multiple engineering teams • Experience in building up and mentoring teams • Being part of implementing end to end More ❯

enjoy solving complex challenges, we would love to hear from you. Nice to have: Machine Learning: Experience in generative models, LLMs, multi-modal models and Deep Learning more generally. Open-source: Contributions to and experience in open-source projects. Front-end: Experience with TypeScript and front-end libraries such as React or Next.js. Startup experience: Experience More ❯

Software Engineering, or related field. Experience with accounting platform integrations (Xero, QuickBooks, Sage). Familiarity with financial data handling and compliance. Experience with high-availability performance optimisation. Contributions to open-source projects or developer community involvement. Perks and Benefits Early-stage opportunity with influence on future growth. Company events and innovation sharing sessions. Continuous internal and external development More ❯

debug an API contract. Thrive in an early-stage, high-ownership environment—prototype today, deploy tomorrow, iterate next week. Bonus Points Experience deploying or consuming LLM-powered services (OpenAI, open-source models, RAG, vector stores) can be a bonus. However, we consider many great candidates without previous AI experience. What we're offering: Base salary from More ❯

with unit testing tools: React : Vitest, Jest, React Testing Library Angular : Jasmine, Karma, TestBed E2E Testing : Experience with Playwright Tooling Experience with: Static code analysis tools (ESLint, Prettier, Sonar) Source control (Git) and workflows (Pull Requests, trunk-based development, Gitflow) Frontend build tools/bundlers: Webpack, Vite, Rollup DevOps & CI/CD CI tools: TeamCity, Jenkins, Tekton Containerization: Docker … security issues Web security concepts: HTTPS, CORS, OAuth, JWT RESTful API integration CSS preprocessors (SASS, LESS) and styling libraries (CSS Modules, Styled Components, TailwindCSS) Nice to Have Contributions to open-source projects Experience with performance optimization and accessibility best practices RE Partners is a technology consulting firm for those leaders that want to become champions by choosing a More ❯

Doing Leading a growing team (currently 2 engineers + external partners) on complex data and cloud engineering projects Designing and delivering distributed solutions on an AWS-centric stack, with open-source flexibility Working with Databricks, Apache Iceberg, and Kubernetes in a cloud-agnostic environment Guiding architecture and implementation of large-scale data pipelines for structured and unstructured data … Iceberg, or similar modern data platforms Experience building software environments from scratch, setting standards and best practices Experience leading and mentoring teams Startup/scaleup background and adaptability Languages: Open to any engineering language; some Python experience is a plus but not essential Cloud: AWS preferred, open to cloud-agnostic approaches CI/CD & Ops: Experience with open-source tools and modern DevOps principles Why Join Us? Impactful Work – Help solve security problems that truly matter Ownership & Autonomy – Shape the tech stack and strategy alongside the CTO Growth – Be part of a company at the forefront of data and intelligence Flexibility – Hybrid and remote-friendly, minimal in-office requirements £140k base salary with flexibility 10% performance More ❯

and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a passionate GoLang Developer seeking a challenging and rewarding contract role with a reputable tech company, apply now! Our client is looking to More ❯

and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a passionate GoLang Developer seeking a challenging and rewarding contract role with a reputable tech company, apply now! Our client is looking to More ❯

AWS native initiative operating as a start up within the firm. You will have ownership of projects in this group from inception to production, with the freedom to use opensource technologies to make sending, trading and accessing assets in real-time achievable. Requirements: 6+ years in any JVM language (ideally Core Java) Kafka Streaming Kubernetes Cloud (AWS) TDD, Pair Programming More ❯

Key Responsibilities: Lead the design and implementation of cloud-native solutions using AWS services. Architect scalable, secure, and resilient applications using microservices and containerisation technologies. Champion the use of open-source frameworks and API-centric architecture to enable interoperability and reuse. Work closely with development, security, and operations teams to align on best practices and design standards. Contribute … or SAFe. Apply domain-driven design principles and event sourcing patterns in application development. Skills & Experience: Proven expertise in delivering AWS-based solutions in secure environments. Strong understanding of open-source technologies and frameworks. Experience with microservice architecture, containerisation (e.g., Docker, Kubernetes), and event-driven systems. Familiarity with structured architecture methodologies (e.g., TOGAF, SAFe). Ability to communicate More ❯

ruggedized Kubernetes offerings operating under complex and novel constraints.Kubernetes offerings operati Ideal candidates are passionate about infrastructure at scale, adept in Ceph, and eager to contribute to the broader open-source ecosystem. Key Responsibilities Manage Ceph at Scale : Design, deploy, and maintain Ceph storage solutions across a variety of hardware environments with an emphasis on high availability and … minimizing manual effort and maximizing operational efficiency. Innovate and Contribute : Drive the integration of emerging tools and features from the Ceph and CNCF ecosystems, and contribute upstream to relevant open-source projects. Community Engagement : Actively participate in the Ceph developer and CNCF communities through collaboration, contribution, and knowledge sharing. Infrastructure Evolution : Partner with peers to architect and build More ❯

software development. This is a unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending open-source libraries. Set up and configure code repositories, including Dockerization and environment setup. Evaluating unit test coverage and quality. Modify and run codebases locally to assess LLM performance … with Git, Docker, and basic software pipeline setup. Ability to understand and navigate complex codebases. Comfortable running, modifying, and testing real-world projects locally. Experience contributing to or evaluating open-source projects is a plus. Note: Experience working with well-maintained, widely-used repositories (500+ stars) is required. Nice to Have: Previous participation in LLM research or evaluation More ❯

software development. This is a unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending open-source libraries. Set up and configure code repositories, including Dockerization and environment setup. Evaluating unit test coverage and quality. Modify and run codebases locally to assess LLM performance … with Git, Docker, and basic software pipeline setup. Ability to understand and navigate complex codebases. Comfortable running, modifying, and testing real-world projects locally. Experience contributing to or evaluating open-source projects is a plus. Note: Experience working with well-maintained, widely-used repositories (500+ stars) is required. Nice to Have: Previous participation in LLM research or evaluation More ❯

software development. This is a unique opportunity to blend practical software engineering with AI research. What does day-to-day look like: Analyze and triage GitHub issues across trending open-source libraries. Set up and configure code repositories, including Dockerization and environment setup. Evaluating unit test coverage and quality. Modify and run codebases locally to assess LLM performance … with Git, Docker, and basic software pipeline setup. Ability to understand and navigate complex codebases. Comfortable running, modifying, and testing real-world projects locally. Experience contributing to or evaluating open-source projects is a plus. Note: Experience working with well-maintained, widely-used repositories (500+ stars) is required. Nice to Have: Previous participation in LLM research or evaluation More ❯

AKS, Azure DevOps, storage, networking) Languages: Java (API/tooling), Bash, YAML, Go (optional) CI/CD: GitHub Actions, Argo CD, Terraform, Concourse (legacy) Observability: Datadog, custom metrics ingestion Source Control: GitHub Enterprise Orchestration: Kubernetes (Helm-based), Argo CD, Terraform What You’ll Bring: Deep experience designing and maintaining Azure-based infrastructure at scale. Solid engineering skills in Java … response in production environments. Nice to Have: Background in financial services, trading infrastructure, or regulated environments. Experience with GitHub Enterprise, Argo CD patterns, or Kubernetes policy enforcement. Contributions to open-source tooling in CI/CD, observability, or platform engineering. This is a hands-on, high-leverage role for engineers who want to build resilient systems and own More ❯

capabilities of the entire engineering team. Influencing Future Direction: Contributing to architectural discussions, evaluating emerging technologies, and shaping the future technical direction. What They're Seeking: The team is open to both experienced senior engineers and promising mid-level candidates. Ideal applicants will possess: A profound understanding of backend fundamentals, including queues, databases, message brokers, event-driven architectures, and … and typical fintech/compliance requirements. A results-oriented mindset, focused on continuous delivery, iteration, and improvement. Desirable Attributes: Prior experience in fintech or payments (e.g., with PCI, PSD2, Open Banking standards). Hands-on experience with serverless, event-sourcing, or CQRS patterns. Contributions to open-source projects or technical publications. Experience in mentoring engineers or leading More ❯

both structured and unstructured) for analysis · 4+ years of experience in applying ML/statistical methodologies on large datasets of respondent level, log file, or transactional level · Ambitious and open to learning many more ML and statistical methods, under mentorship of some recognised AI and software leaders. · Experience in working with large datasets (> 1TB) · Able to implement production level … an engaged customer base · Experience researching and implementing latest scientific literature on NLP/CV and ML · Experience building prototypes and experiments to validate technical ideas · Extensive knowledge of open-source NLP & CV libraries · Skilled at explaining the technical subject matter to non-technical audiences (in English) · Nice to have: Experience working on an agile software engineering team More ❯

thrive in a fast-paced startup. Desirable Experience: Background in network engineering or close collaboration with network operations teams. Experience building platform integrations and/or asynchronous automation systems. Open-source contributions in related domains. You ve worked at an early-stage startup before and understand what hands-on really means. More ❯

with our AI research team to integrate the latest computer vision advancements into the platform. Upholding best practices in code quality, testing, and performance, and actively contributing to our open-source ecosystem. Your strategic vision and technical expertise will be essential in supporting Ultralytics' mission of delivering top-tier machine learning tools and models to the community. 🛠️ Skills More ❯