226 to 250 of 357 Open Source Jobs in London

AWS and Azure. Backend Java, Node.js, C#, Python, PHP, Scala, Power Platform. Test Frameworks PowerApps test studio & test engine, Playwright, Python-based frameworks like Pytest, and several techniques including Open-Source technologies and object-oriented design. Programming languages such as C# (or Java), Python, and TypeScript. PowerApps platform tools, Azure (or AWS) tool stack, test tools like Playwright More ❯

Hugging Face, OpenAI, LangChain) Model fine-tuning, RAG pipelines, vector databases (e.g. FAISS, Pinecone) Cloud (AWS/GCP), CI/CD, Docker Bonus: Knowledge of model optimization, quantization, or open-source contributions. 📩 If interested send your CV to adeeb.rahman@opusrs.com More ❯

Hugging Face, OpenAI, LangChain) Model fine-tuning, RAG pipelines, vector databases (e.g. FAISS, Pinecone) Cloud (AWS/GCP), CI/CD, Docker Bonus: Knowledge of model optimization, quantization, or open-source contributions. 📩 If interested send your CV to adeeb.rahman@opusrs.com More ❯

Hugging Face, OpenAI, LangChain) Model fine-tuning, RAG pipelines, vector databases (e.g. FAISS, Pinecone) Cloud (AWS/GCP), CI/CD, Docker Bonus: Knowledge of model optimization, quantization, or open-source contributions. 📩 If interested send your CV to adeeb.rahman@opusrs.com More ❯

LLM Engineer to support the development of GenAI-powered tools for document understanding, summarisation, and intelligent search. You'll be working with a small, agile team focused on deploying open-source models into production environments. Key Responsibilities Fine-tune and evaluate LLMs for domain-specific tasks Build and optimise RAG pipelines using vector databases Develop prompt engineering strategies More ❯

role, you will be a skilled Systems Administrator with experience of working in a Trading or comparable Financial Services environment. You will have excellent knowledge of AWS, working with open source systems and extensive experience with Linux, Kubernetes, Ansible & git. You will have good people skills and be able to effectively work with the existing IT function to More ❯

infrastructure to deployment automation. Building and maintaining Kubernetes clusters, Helm charts, and cloud-native workloads (or eagerness to learn quickly). Interest in tech side projects, home labs, or open source contributions. More ❯

and backend workflows. Demonstrated ability to work independently on complex technical challenges while collaborating closely with business stakeholders. Passion for AI/LLM exploration - you may have personal or open-source projects demonstrating your curiosity and skills. Comfortable balancing innovation with compliance, privacy, and security best practices. Technology Stack Languages: Python, TypeScript Frameworks: Next.js, LangChain Cloud & Infrastructure: AWS More ❯

About LangChain At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks - LangChain and LangGraph - see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting More ❯

opportunity to learn and contribute to the backend technologies that power the AI magic behind Marker. Our AI engine uses a cutting edge agentic approach with models ranging from open source fine-tuned systems to the latest reasoning models from Anthropic and OpenAI. Apply now! Interested? Email us at with your CV (or a link to your CV More ❯

agentic systems using models like Gemini. Research and product by translating complex technical concepts into actionable plans and user value, while advocating research excellence through publications in conferences and open-source contributions. Google is proud to be an equal opportunity and affirmative action employer. We are committed to building a workforce that is representative of the users we More ❯

customer experience. Preferred Qualifications Background in fraud or risk engineering at scale. Experience with AI/ML-specific security challenges. Knowledge of financial security and compliance standards. Contributions to open-source security projects. Experience at consumer-facing technology companies. Benefits & perks (UK full-time employees): Generous PTO, plus company holidays Comprehensive medical and dental insurance Paid parental leave More ❯

ll be responsible for growing and managing a high-performing team of software engineers, contributing to technical designs, and ensuring code quality and best practices. Android is Google's open-source mobile operating system powering more than 3 billion devices worldwide. Android is about bringing computing to everyone in the world. We believe computing is a super power More ❯

Functional programming/concepts Experience with CI/CD development methodologies and tools (fastlane, Jenkins, Travis, GoCD, etc) Ability/experience testing code and/or writing testable code Open Source contributions and/or willingness to contribute What you'll be doing: Developing and maintaining features in a collaborative, Agile environment; Writing testable code and ensuring the More ❯

learning models including large generative models for language, vision and other modalities}. Experience writing C Triton/CUDA kernels for performance optimisation of ML models. Have contributed to open-source projects or published research papers in relevant fields. Knowledge of cloud computing platforms. Keen to present, publish and deliver talks in the AI community. Benefits In addition More ❯

for machine learning and data manipulation (pandas, NumPy). Advanced experience with SQL for data querying and manipulation. Experience with Git, Bash, Docker, and machine learning pipelines. Experience with open-source machine learning libraries like scikit-learn, PyTorch, TensorFlow, and SciPy. Hands-on experience working with multi-modal data (images, text) and relevant ML techniques. Experience with cloud More ❯

for machine learning and data manipulation (pandas, NumPy). Advanced experience with SQL for data querying and manipulation. Experience with Git, Bash, Docker, and machine learning pipelines. Experience with open-source machine learning libraries like scikit-learn, PyTorch, TensorFlow, and SciPy. Hands-on experience working with multi-modal data (images, text) and relevant ML techniques. Experience with cloud More ❯

gap between imagination and creation, Lightricks is dedicated to bringing cutting-edge technology to the creative and business spaces. Our advanced AI photo and video generation models, including our open-source LTXV model, power our apps and platforms including Facetune, Photoleap, Videoleap, and LTX Studio, allowing creators and brands to leverage the latest research breakthroughs, offering endless control More ❯

challenging engineering problems. Intellectually curious with a growth mindset - able to tackle entirely novel challenges that lack prior precedent through applying strong fundamentals and first principles thinking. Familiarity with open-source technology and a desire to explore and experiment with new solutions. Experience building 0-1 with a strong product sense. Excellent communication skills and the ability to More ❯

We specialise in agile custom software development and integration at an enterprise scale. Our capabilities cover a wide variety of Integration, Open Source, and proprietary technologies. We are seeking an experienced webMethods Software Engineer to deliver some of the largest, complex and most innovative enterprise Digital projects. Hybrid working: The places that you work from day to day More ❯

AML) Conversational finance assistants (customer service, advisory) Automated risk and compliance workflows Synthetic data generation for testing and modeling Personalized financial insights and reporting Select the right GenAI technologies (open-source, proprietary, cloud, or hybrid) to meet client goals without being tied to a specific vendor stack. Lead solution blueprinting, technical feasibility assessments, and road mapping. 2. Customer More ❯

AML) Conversational finance assistants (customer service, advisory) Automated risk and compliance workflows Synthetic data generation for testing and modeling Personalized financial insights and reporting Select the right GenAI technologies (open-source, proprietary, cloud, or hybrid) to meet client goals without being tied to a specific vendor stack. Lead solution blueprinting, technical feasibility assessments, and road mapping. 2. Customer More ❯

model customization techniques such as fine-tuning, continued pre-training, and LLM-as-judge evaluation Experience with optimization of models on GPUs, Amazon Silicon, or TPUs, also experience with open source frameworks for building applications powered by LLMs like LangChain, LlamaIndex, and/or similar tools Experience building generative AI applications on AWS using services such as Amazon More ❯

To be successful in the role, you'll need: 5+ years of hands-on data science experience. In-depth knowledge of AI/ML/DL, Statistics, and related open-source libraries. Awareness of current ML techniques, keen on self-improvement and striving to solve real-world data challenges. Strong skills in SQL and at least one programming More ❯

To be successful in the role, you'll need: 5+ years of hands-on data science experience. In-depth knowledge of AI/ML/DL, Statistics, and related open-source libraries. Awareness of current ML techniques, keen on self-improvement and striving to solve real-world data challenges. Strong skills in SQL and at least one programming More ❯