9 of 9 Remote/Hybrid Open Source Jobs in the City of London

Senior Full Stack Engineer

Hiring Organisation
Prolo
Location
City of London, London, 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 ...

Full Stack Software Engineer

Hiring Organisation
83zero Ltd
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 - 130,000 Annual
architecture. In this role, you will empower the business with the technology and tools needed to leverage data throughout the organization. This Includes: Deploying open-source BI tools and platforms Setting up streaming data collection and validation services Implementing third-party analytic solutions Assisting with data-centric migration … implement solutions with minimal supervision Experience building internal-facing CRUD applications Familiarity with front-end development and ability to make basic modifications to open-source UI components Experience enabling data scientists and engineers with Python-based development workflows and tooling Technology Stack: Azure Cloud Services C# (.NET ...

Full Stack Engineer

Hiring Organisation
Prolo
Location
City of London, London, 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 ...

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 ...

IT Integration Developer

Hiring Organisation
Profectus Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum, Inc benefits
programmes • Experience working alongside AI, Automation or Power Platform teams • Background in software development with the ability to work with internal codebases • PHP or open source framework experience would be beneficial • Microsoft Azure certifications would be advantageous Why Apply? This is an opportunity to join a forward thinking ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
Experience working with mobile applications (React Native/Kotlin/Swift). Experience working in regulated industries or multi-client B2B systems. Contributions to open-source Ruby projects or technical blogging. Benefits Private healthcare after your probation (including children) Hybrid working model 25 days holiday Volunteering Leave Free ...

Principal AI Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
follow through Value collaboration, openness, and continuous improvement Bonus points if you’ve worked with APIs, cloud-native platforms, AI-enabled systems, or open source, but curiosity matters most. Life at Gravitee At Gravitee, we invest in humans, not just roles. You’ll get: Competitive medical coverage Pension ...

Member of Technical Staff

Hiring Organisation
Geometric
Location
City of London, London, United Kingdom
Deep Learning, Category Theory, Neuroevolution, Megakernels, or the work of François Chollet, Kenneth Stanley, Jeff Clune, Jurgen Schmidhuber, David Ha, and Christian Szegedy Bonus Open-source kernel contributions (FlashAttention, FlashInfer, vLLM, Unsloth, Liger-Kernels, ThunderKittens) Publications in ML/AI, kernel optimisation or evolutionary methods (NeurIPS, ICLR, CVPR ...

Backend Engineer

Hiring Organisation
Neulinx
Location
City of London, London, United Kingdom
first software Exposure to Cloudflare, real-time databases, or collaborative application backends Experience building infrastructure for products serving both end users and developer customers Open-source contributions or involvement in developer communities What’s on offer £90,000 - £130,000 salary Equity options Hybrid working ...