1 to 25 of 94 Open Source Jobs in London

financial services client is seeking a Software Licensing Specialist to support the governance, processes and controls surrounding the consumption and contribution of Free and Open Source Software (FOSS). This role sits within an international team and involves close collaboration with Engineering, Tooling and Legal functions. … well suited to candidates with strong expertise in open-source licensing, or those with a background in Software Asset Management (SAM)/IT Asset Management (ITAM) within a commercial environment. The successful candidate will be a proactive self-starter, comfortable working independently and delivering to tight deadlines ...

financial services client is seeking a Software Licensing Specialist to support the governance, processes and controls surrounding the consumption and contribution of Free and Open Source Software (FOSS). This role sits within an international team and involves close collaboration with Engineering, Tooling and Legal functions. … well suited to candidates with strong expertise in open-source licensing, or those with a background in Software Asset Management (SAM)/IT Asset Management (ITAM) within a commercial environment. The successful candidate will be a proactive self-starter, comfortable working independently and delivering to tight deadlines ...

financial services client is seeking a Software Licensing Specialist to support the governance, processes and controls surrounding the consumption and contribution of Free and Open Source Software (FOSS). This role sits within an international team and involves close collaboration with Engineering, Tooling and Legal functions. … well suited to candidates with strong expertise in open-source licensing, or those with a background in Software Asset Management (SAM)/IT Asset Management (ITAM) within a commercial environment. The successful candidate will be a proactive self-starter, comfortable working independently and delivering to tight deadlines ...

Account Executive – EMEA B2B SaaS/Data Infrastructure/IoT/Streaming/Open Source Join a profitable, well-funded global software company building the backbone of real-time connectivity for modern enterprises. This company is the creator of one of the world's most widely adopted open-source messaging and data streaming platforms, trusted by developers and enterprises to power mission-critical systems across IoT, industrial automation, energy, automotive, financial services, AI, and event-driven architectures. With deep roots in open source and a strong engineering-led culture, the platform is used globally ...

methods * Fine-tune and deploy LLMs in production environments * Apply reinforcement learning techniques (SFT, PPO, DPO, GRPO) * Run hands-on experimentation to outperform closed-source models * Break down ambiguous research ideas into structured roadmaps * Optimise open-source LLMs (LoRa, Llama etc.) for enterprise deployment One hire will … applied AI/ML (exceptional 3+ years considered) * Deep experience in fine-tuning + reinforcement learning * Experience shipping ML systems from research into production * Open-source LLM experience essential * Product-driven engineering mindset (Apple, LinkedIn, Amazon style environments ideal but must be willing to work in a start ...

+ equity We're hiring for a UK cyber security startup building a platform that helps organisations detect malicious open-source code and secure their software supply chain in real time. The product continuously scans dependencies, surfaces risk clearly, and helps teams prevent compromised packages from entering … curious about cyber security, this is a chance to build something genuinely important. Why this is interesting (especially if you like cyber) Open source and third-party dependencies are now one of the biggest attack paths for modern organisations. This team is tackling that head-on with ...

FinOps & Model Routing • Framework Expertise: Hands-on development experience with one or more orchestration frameworks (e.g., LangChain, LlamaIndex, Semantic Kernel). • Thought Leadership & Open Source: Published work (whitepapers, patents), conference speaking engagements, or active contributions to relevant open-source projects. • Certifications: Professional-level cloud certifications (e.g. ...

your skills and develop your career across a range of languages and platforms. Many of their projects also involve Geographic Information Systems (GIS) and open-source geospatial technologies, helping clients unlock the value of location-based data through mapping, spatial analysis and data-driven decision making. Skills … enhancing and maintaining software, infrastructure and deployment pipelines that are robust, secure and scalable. Projects may include solutions involving geospatial data, GIS platforms and open-source mapping tools. Work collaboratively across disciplines: partnering with Senior and Lead Engineers, Delivery Managers, Designers and Data Scientists to shape solutions, contribute ...

Ability to debug complex systems, optimize for latency and cost, and navigate ambiguity. Proven Track Record: Demonstrable experience through previous roles, side projects, or open-source contributions in the AI/ML space. Bonus Points Fundamentals of statistics, machine learning, and deep learning. Experience with evaluation frameworks … observability tools. Contributions to open-source AI projects or published research. Familiarity with MLOps, model serving (vLLM, TGI), and infrastructure for AI at scale. Background in fine-tuning, RLHF, or working with open-weight models. ...

with the latest technologies and trends in Python development and actively contribute to the team's technical knowledge base. Contribute to Machine Learning related Open Source initiatives. Requirements : The technical requirements for the role are: Extensive professional experience as a Python-based developer. Experience with modern Python development … pipelines. Advanced proficiency with code maintenance tools and best practice, including Git and configuring workflows. Experience either contributing to or maintaining Python based open-source projects. Have a passion for code quality and things done right. Additional beneficial experience includes: Familiarity with CUDA and optimising highly parallelised ...

primarily office led. 🚀 Key Responsibilities Design and implement state of the art instruction tuning and information retrieval methods Fine tune and deploy large open source LLMs in production Apply reinforcement learning approaches including SFT, DPO, PPO and GRPO Develop models that outperform closed source alternatives Break down … fine tuning and deploying LLMs in production Strong hands on reinforcement learning experience Familiarity with SFT, DPO, PPO and GRPO Experience working with large open source language models such as Llama Strong engineering fundamentals and ability to write clean, production ready ML code Experience generating, curating or synthesising ...

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 ...

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 … 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. ...

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. Proficiency in Python ...

Canvas | Data Visualisation | 2D Graphics London | to £200,000 depending on exp. I'm hiring a Senior Engineer to work on a widely-used, open-source charting library relied on by thousands of engineers building data-intensive products. This is not a typical frontend role. … product theatre. No endless hand-offs. Just proper engineering responsibility. Your work is visible and respected You’ll be contributing to a well-known open-source project used in serious production environments — experience that carries weight long after this role. A grown-up engineering culture No outsourcing. ...

proof systems Drive continuous improvement of development processes, deployment pipelines, and system reliability Represent Entrust's technical capabilities in industry forums and contribute to open-source biometric standards Your future short-term and major projects: Grow adoption of Biometrics products, from face matching, liveness detection and authentication ...

Role : Full Stack Engineer Location: Glasgow, UK Hybrid: 2 days to office Job Type : Permanent role Summary: Looking for Expertise in advanced Java and open-source technologies. Skilled in Spring Boot, Hibernate, Microservices, Docker, Kubernetes, JPA, MySQL, SQL Server, Snowflake, REST API, Apache Kafka, Jenkins, CI/ ...

Junior Systems Engineer/Harrow (Hybrid)/Up to £35K & Great Benefits Open Answers ((url removed)) is a provider of premium quality digital technology services to blue chip customers and the public sector, specialising in cloud systems integration. Customers include British Airways, Allwyn (The National Lottery) and Channel … successful company you will have the opportunity to make the most of and enhance your skills, working as part of a great team. Open Answers provides a happy, respectful and collaborative working environment and we give our employees the freedom to find innovative solutions for themselves. Working conditions ...

Prompting, Reasoning & Agentic Systems Design, test, and optimize prompts for leading frontier models (GPT-4.x/5, Claude 3+, Gemini, LLaMA, DeepSeek, and emerging open-weight models). Apply advanced prompting and reasoning techniques, including: Chain-of-Thought, ReAct, Tree-of-Thoughts, Graph-of-Thoughts, Program-of-Thoughts Self … mitigation, governance, and compliance frameworks. Background in Computer Science, AI/ML, Engineering, or a related technical discipline. Experience deploying, fine-tuning, or serving open-source LLMs in production. Staffworx is a UK-based Talent & Recruiting Partner supporting organisations across Digital Commerce, Software Engineering, and Value-Add Consulting ...

case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National ...

case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National ...

solutions to complex technical problems independently Desirable experience Experience in designing and implementing Docker images through containerisation Experience in prototyping through reuse of existing Open-Source components Benefits In return, you can expect a planned, transparent progression with learning and development tailored to your role, an environment with ...

designing and deploying agentic solutions (agents, orchestration, context engineering, RAG, workflows) in production environments. Strong experience with AI platforms — OpenAI, Claude, Vertex AI, plus open-source models — including building abstraction layers to manage multi-provider pipelines. Strong programming experience in Python, Java, C# or equivalent; familiarity with evaluation ...

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 … 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 ...

Gemini), machine learning libraries (e.g. scikit-learn, XGBoost). Experience with data storage for AI, vector databases, semantic search, and knowledge graphs. Contributions to open-source AI projects or research publications. Familiarity with AI security, privacy, and compliance standards e.g. ISO42001. ...