1 to 25 of 40 Permanent Open Source Jobs in the Thames Valley

Level Software Engineer Salary: £45,000 - £55,000 Location: Oxford (Hybrid - 3 days per week in office) Industry: Open-Source Software/Digital Platforms The Opportunity I'm recruiting for an innovative Oxford-based tech company that's expanding its engineering team to support its growing suite … open-source digital platforms. This role is perfect for a mid-level Software Engineer who wants to take on exciting projects while benefiting from mentorship and guidance from a supportive senior engineering team. You'll join an engineering team of around 12 developers, working in a collaborative environment ...

like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. How we work: We are a small, early-stage team with big ambitions. … motivated by impact tend to thrive. 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. Startup experience: Experience in an early-stage startup environment. Why join ...

like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. How we work: We are a small, early-stage team with big ambitions. … motivated by impact tend to thrive. 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. Startup experience: Experience in an early-stage startup environment. Why join ...

like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. How we work: We are a small, early-stage team with big ambitions. … motivated by impact tend to thrive. 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. Startup experience: Experience in an early-stage startup environment. Why join ...

full software development lifecycle, including architecture, technical design, C++ development, bug fixing, as well as functional and performance validations. Be part of the open-source XRP ledger community, setting high standards for coding, testing, and deployment. Actively participate in code reviews to maintain the high quality … Ability to learn new technologies and languages quickly. Ability to independently solve highly complex problems with creative solutions. Nice to have: Experience in developing open-source software and contributing to collaborative blockchain communities. WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced ...

full software development lifecycle, including architecture, technical design, C++ development, bug fixing, as well as functional and performance validations. Be part of the open-source XRP ledger community, setting high standards for coding, testing, and deployment. Actively participate in code reviews to maintain the high quality … Ability to learn new technologies and languages quickly. Ability to independently solve highly complex problems with creative solutions. Nice to have: Experience in developing open-source software and contributing to collaborative blockchain communities. Other common names for this role: C++ Developer, Staff C++ Engineer ...

supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation's mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. At least two years ...

that scale across thousands of nodes • Performance-critical modules for consensus, networking, and data pipelines • Internal tooling for observability, testing, and simulation • Contributions to open-source infra and protocol-level primitives What You Bring • 5+ years of backend engineering experience in systems-level environments • Deep knowledge of distributed … cloud-native infra • Familiarity with blockchain, cryptographic protocols, or decentralized coordination Bonus Points • Experience in zero-knowledge systems, MPC, or verifiable computation • Contributions to open-source infra projects • Prior work in Layer 1 or Layer 2 blockchain development Why Join • Stealth-stage impact with protocol-grade ownership • Competitive ...

model safety, bias mitigation, evaluation frameworks and governance. Background in Computer Science, AI/ML, Engineering, or related fields. Experience deploying or fine-tuning open-source LLMs. TECH STACK LLMs: GPT-4/5, Claude 3.x, Gemini 2.x, Mistral Large, LLaMA 3, Cohere Command R+, DeepSeek Frameworks: LangChain ...

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 ...

Science, Engineering, or related field (PhD preferred). Nice to Have: Experience building Agentic applications Experience training or fine-tuning foundation models. Contributions to open-source ML or LLM frameworks. Understanding of Responsible AI, bias mitigation, and model interpretability. Perks of Freelancing With Turing: Work in a fully ...

software engineering skills with a focus velocity Excellent communication skills and the ability to flourish in a team Located in London/Paris and open to working in office Tech Stack: Python FastAPI Python, Typescript, or React Open source LLMs Building for production Benefits Currently Offered (likely ...

Design, develop, and fine-tune Large Language Models (LLMs) and Generative AI solutions using frameworks like OpenAI, Anthropic Claude, Gemini, or open-source models. Build and optimise RAG pipelines, vector databases, and prompt engineering strategies for enhanced AI responses. Develop AI-powered applications integrating LLMs with APIs, agents ...

distributed systems, concurrency, or network programming Experience working with low-latency or real-time systems Familiarity with trading platforms, data pipelines, or simulation tools Open-source contributions or personal technical projects that demonstrate initiative Contact Ciara Clarke at Harrington Starr for a confidential discussion. ...

style. Nice to Have · Experience with model serving, quantisation, or distributed inference. · Exposure to containerisation and cloud environments (AWS/DO). · Projects or open-source contributions demonstrating capability and initiative. · Experience in data engineering, cybersecurity, prediction systems or financial systems. · Ability to own the delivery pipeline from ...

style. Nice to Have · Experience with model serving, quantisation, or distributed inference. · Exposure to containerisation and cloud environments (AWS/DO). · Projects or open-source contributions demonstrating capability and initiative. · Experience in data engineering, cybersecurity, prediction systems or financial systems. · Ability to own the delivery pipeline from ...

style. Nice to Have · Experience with model serving, quantisation, or distributed inference. · Exposure to containerisation and cloud environments (AWS/DO). · Projects or open-source contributions demonstrating capability and initiative. · Experience in data engineering, cybersecurity, prediction systems or financial systems. · Ability to own the delivery pipeline from ...

Experience building pipelines for scientific or healthcare data Knowledge of cluster compute, distributed training and GPUs Understanding of healthcare data or regulated environments Open-source contributions Cloud experience (AWS/GCP/Azure) Compensation & Benefits Excellent base salary Generous equity allocation from day one Comprehensive health & wellness package ...

performance, reliability and availability are key considerations. Experience working on software infrastructure or building Cloud native software using Kubernetes Understanding of systems design and Open Source components. If you have knowledge of building virtual machines - Virtual servers, virtual networking or network programming - that's a plus... but definitely ...

optimization affects performance Next-generation simulation and HPC compute pipelines, supporting ML/AI workflows at scale. Integration and continuous improvement of internal and open-source tools for automation and reliability. Strategic platform direction: shaping foundational systems for critical infrastructure in an elite trading environment. Team and Culture ...

optimization affects performance Next-generation simulation and HPC compute pipelines, supporting ML/AI workflows at scale. Integration and continuous improvement of internal and open-source tools for automation and reliability. Strategic platform direction: shaping foundational systems for critical infrastructure in an elite trading environment. Team and Culture ...

expertise: Understanding of adversarial AI, prompt injection, or system security • Real-time systems experience: Trading systems, fraud detection, or other low-latency critical infrastructure • Open source contributions in relevant domains (AI frameworks, monitoring tools, security infrastructure) Bonus Points (Nice to Have) • Understanding of regulatory frameworks ...

firm's global production trading infrastructure—from hardware and Linux systems to Kubernetes, observability, and build platforms. They work with a mix of open-source and in-house technologies to solve scaling, reliability, and performance problems in a highly collaborative environment. We're expanding the team with ...

firm's global production trading infrastructure—from hardware and Linux systems to Kubernetes, observability, and build platforms. They work with a mix of open-source and in-house technologies to solve scaling, reliability, and performance problems in a highly collaborative environment. We're expanding the team with ...

firm's global production trading infrastructure—from hardware and Linux systems to Kubernetes, observability, and build platforms. They work with a mix of open-source and in-house technologies to solve scaling, reliability, and performance problems in a highly collaborative environment. We're expanding the team with ...