1 to 25 of 86 Open Source Jobs in London

Software Asset Management Consultant

Hiring Organisation
Talent Smart
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 630 Daily
someone with a strong background in software development or programming, to support governance, processes, and controls around the use and contribution of Free and Open Source Software (FOSS). The role is ideally suited to someone who has previously built or maintained software and has developed a strong … developer-focused guidance to engineering teams on the implications of FOSS licensing within their applications and codebases. Analyse licensing and copyright considerations for new open-source software requests, with an understanding of real-world development use cases. Use FOSS scanning and composition analysis tools to identify licensing risks ...

Software Asset Management Consultant

Hiring Organisation
Talent Smart
Location
E14, Canary Wharf, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £630/day
someone with a strong background in software development or programming, to support governance, processes, and controls around the use and contribution of Free and Open Source Software (FOSS). The role is ideally suited to someone who has previously built or maintained software and has developed a strong … developer-focused guidance to engineering teams on the implications of FOSS licensing within their applications and codebases. Analyse licensing and copyright considerations for new open-source software requests, with an understanding of real-world development use cases. Use FOSS scanning and composition analysis tools to identify licensing risks ...

Senior Golang Developer

Hiring Organisation
Levy Global
Location
London Area, United Kingdom
this role, you will focus on developing and maintaining high-performance applications using Golang, contributing to code-based deployment strategies, and collaborating on open-source projects. Your expertise will drive the deployment and management of cutting-edge solutions using technologies like Temporal. Responsibilities: Develop and maintain robust, scalable … design and implementation of code-based deployment strategies. Manage and optimize deployment and management processes for applications. Collaborate with the team on open-source projects and initiatives. Implement solutions using Temporal and similar technologies to enhance application performance. Ensure code quality through testing, code reviews, and adhering ...

Technical Support Engineer

Hiring Organisation
Formance
Location
City of London, Greater London, UK
terms of responsiveness, resolution time, tone, and knowledge Support the customer throughout their entire lifecycle Provide expert-level technical support for customers using our Open Source Ledger and other backend modules. Troubleshoot complex issues, investigating and diagnosing problems quickly, and escalating them to the development team when necessary. … support and relay feedback for continuous improvement. Ability to prioritize and manage multiple tickets/issues Fluent in English Nice to have : Familiarity with open-source ecosystems, APIs, webhooks, or BE tools Basic understanding of financial services infrastructure (ledgers, reconciliation, transactions) Benefits We offer a competitive package including ...

Account Executive

Hiring Organisation
Ultralytics
Location
City of London, Greater London, UK
Ultralytics , we are shaping the future of Vision AI. Our groundbreaking YOLO (You Only Look Once) models are the world’s most widely used open-source object detection tools, empowering millions of developers and enterprises to build intelligent applications that see and understand the world. Now backed … hand in hand. Why This Role and Why Now Be part of a once-in-a-decade AI success story with an enormous open-source following and clear product-market fit. Join at the moment when Ultralytics is transitioning from foundation building to large-scale global growth. Sell ...

Senior ML Research Engineer

Hiring Organisation
Zettafleet
Location
City of London, Greater London, UK
would love to hear from you. Nice to have: Publications: At top-tier ML/CV/NLP conferences (NeurIPS, ICML, ICLR, CVPR, ICCV) Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. ...

Senior Full Stack Engineer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
analysis using Python (pandas, numpy) Understanding of data pipelines and ETL processes AI/LLM Engineering Experience integrating LLM APIs (OpenAI, Anthropic, Gemini, or open-source equivalents) into production applications Understanding of core LLM concepts: context windows, token limits, temperature, system prompts, and model selection trade-offs Experience … Experience building scalable backend systems Ability to work across multiple domains (backend, DevOps, data) Examples of taking projects from idea to production Contributions to open source or personal projects Note : Prolo is a startup with a small engineering team, which means you'll be expected to be versatile ...

Graduate ML Research Engineer

Hiring Organisation
Zettafleet
Location
City of London, Greater London, UK
would love to hear from you. Nice to have: Publications: At top-tier ML/CV/NLP conferences (NeurIPS, ICML, ICLR, CVPR, ICCV) Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, Greater London, UK
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 … 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 ...

Telemetry and Observability Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £515 per day
systems Build and enhance observability tooling, including dashboards, monitoring systems, alerting frameworks, and reliability standards Develop and maintain telemetry solutions using OpenTelemetry and related open-source technologies Automate observability infrastructure using Terraform and infrastructure-as-code practices Integrate monitoring and observability into CI/CD pipelines and SDLC … Experience Experience in regulated or large enterprise environments Exposure to AI/ML-driven observability or proactive monitoring initiatives Contribution to or involvement with open-source observability projects If this sounds like a fit, APPLY NOW! Telemetry & Observability Engineer | Contract | £475-£515 p/d | Inside IR35 | London ...

Software Integration Engineer

Hiring Organisation
microTECH Global LTD
Location
London, UK
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 ...

Computer Vision Engineer

Hiring Organisation
Ultralytics
Location
London Area, United Kingdom
What You'll Do As a Computer Vision Engineer at Ultralytics, you will be at the forefront of developing and refining our world-class, open-source AI models. You will drive the entire lifecycle of our models, from research to real-world deployment. Key responsibilities include: Developing, training … Excellent problem-solving skills and the ability to perform in a fast-paced, high-intensity environment. A strong portfolio of projects or contributions to open-source AI repositories. 🌟 Cultural Fit - Intensity Required Ultralytics is a high-performance environment for world-class talent obsessed with achieving extraordinary results. ...

Senior/Staff Engineer - Hegel

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
role, on a team based in London, is responsible for building out Hegel, our new family of property-based testing libraries. We are building open source libraries to provide top quality property-based testing in every language, both for the benefit of the community at large, and because … languages. Expert-level in at least one language that you would be keen to be "tastemaker" for a Hegel implementation. Having maintained an active open source library is a strong plus. The Tech: You can see most of the tech in question on https://github.com/ ...

Enterprise Account Executive (Founding)

Hiring Organisation
Sauced
Location
London Area, United Kingdom
offices in San Francisco and an expanding EMEA presence. With ~55 employees globally, they've built one of the world's most widely used open source data labelling platforms — trusted by over 350,000 data scientists and ML engineers worldwide. Their platform enables enterprises to train, evaluate … business. You'll be expected to generate a portion of your own pipeline alongside strong inbound demand generated through their large and active open-source community — a genuine differentiator in terms of brand awareness and warm engagement. What You'll Need - A proven track record in complex, full ...

Software Engineer ( Python )

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
applications , translating complex business and analytical requirements into well-architected technical solutions. Implement and integrate large language models (LLMs) , including: Utilising both proprietary and open-source models Fine-tuning models to meet specific business use cases Delivering solutions via APIs, such as OpenAI APIs Collaborate closely with product ...

Global Banking & Markets - Software Engineer - Vice President - London London · United Kingdom [...]

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
reconciliation, and multi‐system migration environments. Other : Asynchronous/non‐blocking I/O frameworks (e.g., Vert.x, Netty), multi‐region/BCP architectures, and opensource contribution experience. Employment Verification and EEO Statement Goldman Sachs is an equal‐opportunity employer and does not discriminate on the basis ...

Global Banking & Markets - Software Engineer - Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
reconciliation, and multi‐system migration environments. Other: Asynchronous/non‐blocking I/O frameworks (e.g., Vert.x, Netty), multi‐region/BCP architectures, and opensource contribution experience. ABOUT GOLDMAN SACHS At Goldman Sachs, we commit our people, capital and ideas to help our clients, shareholders ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
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 ...

Principal Technical Consultant - Automation

Hiring Organisation
TEN10 SOLUTIONS LIMITED
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
implement innovative approaches across diverse client delivery landscapes. Design & Develop: Build and support automation and/or performance test frameworks using a variety of open-source, commercial, and bespoke solutions. Leadership & Mentorship: Lead a team of Quality Engineers, providing technical advice and supporting their professional learning and development. ...

Staff Software Engineer

Hiring Organisation
ShareChat
Location
City of London, London, United Kingdom
large-scale models using tools such as Tensorflow or PyTorch is a plus. You stay up-to-date with the state-of-the-art open source infrastructure solutions applicable to designing and improving large scale recommender systems, data engineering, and machine learning You have a Master ...

Managing Architect

Hiring Organisation
Aker Systems Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
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 ...

Full Stack Software Engineer (Golang/Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
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 ...

Machine Learning Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, Greater London, UK
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 ...

Senior AWS Data Engineer - SC Cleared

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £450 per day
robust data pipelines for ingestion, processing, and transformation Implement and maintain ETL/ELT workflows feeding data warehouses, data lakes, or lakehouse platforms Leverage open-source and AWS-native tools to deliver scalable data solutions Apply DevOps practices , including CI/CD and automation Ensure solutions align with … solutions Experience working in Agile (Scrum) delivery environments Strong communication and stakeholder-management skills Proactive, collaborative, and delivery-focused mindset Desirable Skills Knowledge of open table formats (Iceberg, Delta) Experience with additional AWS services (CloudWatch, SNS, Athena, DynamoDB, EMR, Kinesis) Data modelling Job scheduling and orchestration tools Data virtualisation ...

Data Scientist

Hiring Organisation
Oscar Technology
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
customer-facing AI tools, leveraging large language models and modern machine learning techniques. While the organisation operates in a regulated environment, they are open to candidates from a range of industry backgrounds, financial services experience is beneficial but not essential. Key Responsibilities Design, build, and deploy Generative AI solutions … with Generative AI (LLMs, prompt engineering, embeddings) Experience using frameworks such as LangChain, LlamaIndex, or similar Experience integrating with model APIs (e.g. OpenAI or open-source alternatives) Exposure to cloud environments (AWS, GCP or Azure) Strong problem-solving skills and a pragmatic, delivery-focused mindset Ability to work ...