1 to 25 of 66 Open Source Jobs in Central London

authorization to work in the UK or Spain Department: Growth Reports to: VP of Growth 🔥 Who We Are Ultralytics is the company behind YOLO, the world’s most popular open-source computer vision framework . Our mission is to make advanced AI vision accessible, ethical, and impactful , empowering industries from healthcare and robotics to space and mobility. We … re a fast-moving Series A startup building the bridge between open source and enterprise AI adoption , trusted by hundreds of organizations and millions of developers globally. Now, we’re expanding our partner ecosystem, and we’re looking for a bold, outcome-driven Head of Partnerships to lead that charge. 🚀 About the Role As Head of Partnerships , you … ll work cross-functionally with Sales, Product, and Marketing to connect innovation, community, and industry. If you thrive on creating meaningful relationships, driving adoption through collaboration, and elevating an open-source technology into an ecosystem standard, this role is for you. 🚀 What You’ll Do Ecosystem Strategy & Expansion Define and own Ultralytics’ partnership roadmap across hardware, cloud, dataset More ❯

Role: Head of Partnerships Location: London or Madrid Language: English WFH policy: Hybrid, with international travel Industry: Computer Vision, AI, Open Source Product: Open-source AI models & enterprise platform Size and functions of local team: Leadership present in both Madrid and London Partnerships team includes 1 technical and 1 operational staff Function currently reports into VP … Represent the business at major ecosystem events and conferences Manage and grow the existing partnerships team Unique about the company: Massive inbound demand from global tech players due to open-source dominance Partnerships are driven by product adoption, not cold outreach Strong technical footprint across hardware, ML, and deployment partners Real impact on product development, integrations, and commercial … partnerships Technical acumen to lead integrations and influence product Experience managing cross-functional delivery (technical and business) Management of small teams International partnership experience Nice to haves: Background at open-source or developer-first companies Familiarity with companies like Hugging Face, Mistral, Databricks, Anaconda Prior co-marketing or GTM collaboration experience Exposure to OSS licensing and compliance frameworks More ❯

junior-to-mid Legal Counsel to join a pivotal in-house team and support a business at the intersection of software development and AI, with a particular focus on open-source compliance and licensing. The Opportunity This newly created role reports directly to the General Counsel and offers the chance to provide practical, commercial legal advice across the … business, including to senior leadership. You will: Advise on commercial contracts, open-source licensing, and data processing agreements. Manage intellectual property and ensure data privacy compliance. Support product development to mitigate legal risk. Advise on disputes and emerging legal issues. Monitor trends in AI, technology law, and open-source compliance to provide actionable guidance. Hybrid role … based 3 days a week in the Central London office. Experience & Skills Qualified solicitor with 3+ PQE, experienced in drafting, reviewing, and negotiating commercial agreements. Experience with open-source software or licensing is highly desirable. In-house experience (current or via secondment) is advantageous. Commercially minded, confident, and able to manage competing priorities independently. Able to provide practical More ❯

days per week in office) Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger"—set to replace legacy infrastructure at Tier 1 banks. We're looking for a Principal Platform Engineer to drive the infrastructure behind mission … incident response AI-curious or AI-native: excited to build agent-powered ops Someone who is currently hands on (not someone primarily focused on strategy & people management) Passion for open-source, clean architecture Software Development experience (Bonus points for Go(Golang)) Bonus: background in financial systems, core banking, or regulated infra Why join: Huge ownership: build core infra … Work with a high-caliber team, fast-paced and product-minded founders who have worked in some of the most recognised tech businesses in the world. Help define an open-source platform from day one. Clear path to tech unicorn status with fruitful equity included. Recently raised 8 figures in funding. If your skillset matches, apply within. Please More ❯

scaling and optimising storage systems that support critical research and trading workloads. This role offers the opportunity to work on innovative, high-impact projects at the intersection of cloud, open-source, and high-performance computing. The Role: Design and develop scalable data orchestration services across cloud and on-prem environments. Create unified platform abstractions to streamline data access … across diverse storage technologies. Integrate open-source and vendor storage solutions through rapid prototyping and engineering. Optimise storage performance and efficiency across large-scale infrastructure. Collaborate across engineering functions to deliver robust end-to-end platform capabilities. Own operational responsibilities: troubleshooting, performance tuning, and user support. Your Background: 5+ years' development experience with a degree in Computer Science … complex backend systems at scale. Experience with Elasticsearch, Prometheus, Grafana and/or Datadog. Exposure either AWS or GCP plus IaC, (Terraform or similar) would be beneficial. Knowledge with open-source storage tools (Ceph, Minio, JuiceFS or Fuse) and familiarity with high-performance data transport protocols (RDMA, GPUDirect, DPDK) would be well received. This is a chance to More ❯

enable researchers, engineers, and investment teams to access and analyse data at scale. You’ll join a small, highly capable team operating in a cloud-native, Kubernetes environment, combining open-source tools and modern engineering practices to create a unified, next-generation data platform. What You’ll Get A key engineering role within a world-class technology organisation … that values innovation and impact. Exposure to a modern data ecosystem including Iceberg, Kafka, Airflow, and other open-source technologies. A collaborative, intellectually curious culture where engineers are trusted to take ownership and drive outcomes. Excellent compensation package with strong performance incentives. What You’ll Do Design, develop, and maintain high-performance APIs and core data service s More ❯

Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of ex-Palantir and ex-Open AI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, Generative AI, and reinforcement … or equivalent experience 5+ years of experience working with cross-functional software development teams Experience shipping and iterating on production-grade software components professionally and/or in the open-source community Ability to write robust, well tested, and well-designed code that frequently gets deployed to users Strong understanding of product development and navigating large codebases Located … in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript + React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support Min. 3 months fully paid parental leave 25 days holiday + bonus days for company closure Subsidised lunches More ❯

the core C++ codec integration layers. Integration work for other compression solutions, such as VC6 and point cloud compression, into different video editing and creation applications. Engaging with the open-source community to contribute changes upstream to video player open-source projects and assist with their integration of LCEVC. Development activity planning, including sprint planning and More ❯

to £200k + Equity | London Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger" —set to replace legacy infrastructure at Tier 1 banks. We're looking for a Senior Engineer specialising in Go to contribute to v1 … distributed, multi-region infra with five-nines reliability Contribute to backend, DevOps, and CI/CD decision-making Embed AI into engineering workflows & ops Self-motivated, problem-solving mindset; open to non-traditional backgrounds. You should have: Expert backend skill ideally in Golang, or Rust, Zig or C. Deep expereince building distributed systems from scratch. Experience in greenfield projects … Work with a high-caliber team, fast-paced and product-minded founders who have worked in some of the most recognised tech businesses in the world. Help define an open-source platform from day one. Clear path to tech unicorn status with fruitful equity included. Recently raised 8 figures in funding. Apply within if your skillset matches! Please More ❯

to maximise efficiency Automate model experimentation, tuning and retraining in partnership with research teams Work with infrastructure specialists to optimise workflows and reduce compute costs Assess and integrate emerging open-source tools to enhance ML development and deployment Skills and Experience 5+ years’ experience in machine learning with a focus on training and inference systems Strong programming expertise … Hands-on experience with GPU acceleration and distributed training (Horovod, NCCL or similar) Background in real-time, low-latency ML pipelines Familiarity with cloud and orchestration technologies Contributions to open-source ML or distributed systems projects are advantageous Why This Firm? Direct impact: your work feeds into live trading strategies, not just experiments. Buy-side edge : fewer layers More ❯

a distinctive angle from the ground up, focusing on the flow of funds first to help businesses realize their product visions on a solid financial foundation. Starting with an Open Source Ledger (i.e. a database for financial transactions), we’re building a comprehensive suite of modern financial backend modules, including native and automated reconciliation, workflow engines, and connectors … the trusted financial backend for leading SaaS companies and financial institutions like Booksy, Doctolib, and Liberis, along with many others worldwide. Our success stems from the trust in our open-source foundation, the high level of programmability of our solutions, and our software-first approach, moving beyond traditional payment business models. We’ve recently opened two new offices More ❯

AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on-premises or in cloud environments. Our offerings include … mindset and willingness to "roll up your sleeves" to get things done. Commitment to responsible AI, including fairness, transparency, and accountability in content usages. Knowledge of US copyright law, open-source licensing, or AI/ML technologies is a strong plus. Benefits Competitive cash salary and equity Food : Daily lunch vouchers Sport : Monthly contribution to a Gympass subscription More ❯

in architectural discussions and technology decision-making. Help improve CI/CD pipelines and infrastructure (AWS, Ansible, GitHub Actions). Write clean, maintainable, and well-tested code. Contribute to open-source libraries and research where relevant. Demonstrate a strong understanding of BondAval's ethos and values in your work. Actively seek to understand the business, product, and our … databases (Postgres) and NoSQL databases (MongoDB, Redis, Cassandra). Experience with RESTful API design and integration. Familiarity with front-end frameworks (VueJS, React, or Angular). Good knowledge of source control (Git) and CI/CD tools. Understanding of infrastructure and deployment (AWS, Ansible, Kubernetes). Architectural skills and experience with microservices. A genuine interest in AI and LLMs More ❯

to establish coding standards and best practices across teams AI/ML Expertise Strong understanding of machine learning frameworks (TensorFlow, PyTorch, Scikit-learn) Experience with LLM integration (OpenAI, Anthropic, open-source models) Knowledge of RAG architectures, prompt engineering, and vector databases (Pinecone, Weaviate) Experience with MLOps tools and monitoring model performance in production Automation Architecture Deep knowledge of More ❯

using Kafka and Confluent components. You will collaborate with data engineers, architects, and DevOps teams to deliver robust streaming solutions. Required: • Hands-on experience with Apache Kafka (any distribution: open-source, Confluent, Cloudera, AWS MSK, etc.) • Strong proficiency in Java, Python, or Scala • Solid understanding of event-driven architecture and data streaming patterns • Experience deploying Kafka on cloud More ❯

facing off to cyber security specialists. The successful candidate will meet all of the following essential criteria: Demonstrable experience in designing large scale cloud migration projects/programmes with open source and commercial software within AWS, Azure, GCP or hybrid Experience in operating within a multi-disciplined team and clearly communicating complex technology solutions to technical and non … CD and Infrastructure-as-Code Understanding of NCSC Cloud Security Principles and its practical implementations Aker Systems Attributes At Aker we work as a team, we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider Aker. We help out our More ❯

on experience with cloud platforms (AWS, GCP, Azure) and Kubernetes • Familiarity with CI/CD pipelines and infrastructure automation (Ansible, CFK) Required: • Experience with other Kafka platforms such as Open-source Kafka, Cloudera Kafka, AWS MSK, etc. • Solid understanding of Kafka architecture and operational management in enterprise environments. • Experience in professional services or implementation consulting for SaaS products More ❯

debugging Golang based systems Good skills in web front end technologies such as HTML, CSS, Bootstrap Golang Spring Boot Docker Kubernetes Atlassian Build tools: Maven, Gradle, Ant Familiar with source control systems, such as GIT, including branching, merging, etc. Testing: TDD, unit testing, JUnit, Mockito, Cypress Good knowledge of relational databases such as MySQL and PostgreSQL including data modelling … SQL scripts, store procedures Shift to the left: Functional test automation (API testing, UI testing [cucumber, nightwatch]) Nice to have skills: AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti or Flowable) Experience on a front-end javascript framework such as react, angular or vue.js RedHat OpenShift for container orchestration Knowledge of NCSCs 14 cloud security principles. More ❯

healthcare environments (ideal). MSc in Computer Science or equivalent experience. Bonus Familiarity with PyTorch, JAX, Hugging Face, and AWS ML services. Experience optimizing models for low-latency inference. Open-source contributions and/or startup experience. Why This Is Unique Globally competitive salary + equity. Shape how customers access and deploy state-of-the-art biological foundation More ❯

toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools and ML tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning More ❯

scale, data-driven applications Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups) Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage Open-source contributions are beneficial If you’re a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today. We are More ❯

logging) Confident debugging and resolving issues in complex distributed systems Product-oriented mindset with a collaborative approach to improving developer experience Bonus: experience with Kafka, gRPC, or contributing to open-source projects If you’re a Senior Platform Engineer who thrives on building tools and systems that empower developers and accelerate delivery, apply today. The client is looking More ❯

AI or automation into operational workflows (e.g., monitoring, alerting, or data pipelines) Some knowledge of Atlassian Jira & Confluence Interest in emerging technologies (AI/ML, blockchain, IoT, edge computing) Open-source contributions or personal tech projects you're proud of Other Highly Desirable Skills: Previous Application Support - Ideally Trading/Market Data - Futures & Options Trading/Settlement Systems More ❯

tuning, feature engineering, and MLOps practices for production deployment. Generative AI & LLM Integration - Proficient in working with Large Language Models including OpenAI GPT models, Anthropic Claude, Azure OpenAI, and open-source alternatives (Llama, Mistral). Experience with prompt engineering, fine-tuning, RAG (Retrieval Augmented Generation) architectures, vector databases (Pinecone, ChromaDB, FAISS), embeddings, and building AI-powered automation solutions More ❯

or event-driven architectures Experience leading migrations (e.g., monolith → services, PHP upgrades, cloud re-architecture) Exposure to front-end frameworks (React, Vue, etc.) for full-stack collaboration Contribution to open-source projects or technical community involvement More ❯