26 to 50 of 1,012 Open Source Jobs in England

ML Systems Engineer - Model Training and Infrastructure (SWE-focused LLMs)

Location
Greater London, England, United Kingdom
existing architectures, follow established patterns and produce software that engineers can actually maintain. We develop our agent tooling entirely in-house and post-train open-source models for reliable, enterprise-grade coding performance. Our products are designed for on-premise, VPC and fully air-gapped environments, including security … development tools. Develop custom PyTorch dataloaders, training objectives and evaluation workflows. Run and analyse fine‐tuning and RL experiments across large, modern open‐source models. Create the data that teaches models to engineer Develop synthetic data‐generation pipelines for future RL and fine‐tuning runs. Design systems ...

Senior Applied AI Engineer: Software

Location
Manchester, England, United Kingdom
building an engineering organisation for the next generation of AI. You'll work with modern AI technologies, strong software engineering practices and open-source tools, while having dedicated opportunities for R&D, learning and contributing back to the wider technical community. We value strong engineering foundations, a drive … Work at the frontier of Applied AI: Build with rapidly evolving AI technologies and help determine how they should be used in production, leveraging Open Source solutions when needed and delivering AI with impact for our clients. Work that has real impact: Work directly with varied organisations solving ...

Senior Product Manager - Open Source Software

Hiring Organisation
Riverlane
Location
Cambridge, Cambridgeshire, United Kingdom
Salary
£ 70 K
government agencies to make fault tolerant quantum computing a reality. We’re making remarkable progress and growing fast. About the roleDeltakit is Riverlane’s open-source software development kit (SDK) for QEC which is designed to help researchers build, test and run QEC workflows as the field … product’s value in a way that excites and inspires people to build with it.What you will doEngage with users, partners and the open-source community to gather insight and feedback Analyse product usage, developer behaviour and the broader ecosystem to inform priorities Define and communicate product vision ...

Technical Account Manager (UK, EMEA)

Location
Greater London, England, United Kingdom
Socket helps devs and security teams ship faster by cutting out security busywork. Thousands of orgs use Socket to safely find, audit, and manage open source code. Our customers - from Anthropic to xAI, and Figma to Vercel - love Socket (just check out their tweets) to see for yourself … Founded by Feross Aboukhadijeh, a long-time open source maintainer with software downloaded over a billion times a month, Socket has raised $125M from top angels, operators, and security leaders. About the Role You’ll own customer success post-sale for our European Customers. That means understanding ...

Design Engineer

Location
Greater London, England, United Kingdom
About Trigger.dev Trigger.dev is an open source platform used by developers to build production-grade AI agents. It's an SDK and the infrastructure to run agents reliably at scale, so teams can focus on the product instead of the plumbing. Our Cloud product is a managed service … fast and iterating in public If you're based in the UK and you are able to join the team in London Contributed to open source projects Previously been a venture-backed startup founder Have a social media presence About the team We are a small team with ...

ML Engineer/Researcher Engineering London

Location
Greater London, England, United Kingdom
that reflect real personal-finance tasks and make model strengths and failure modes clear. Second, we will train our own models on top of open source, tuned for financial advice and evaluated against standards we care about: numerical correctness, rule-following, and robustness on long, messy inputs. … evals for personal-finance guidance and advice, including numerical accuracy, constraint satisfaction, and long-document robustness. Model building. Fine-tune, distill, and post-train open models into Clove models for financial advice. Research. Investigate why models fail on numbers and layered rules, and turn those findings into methods that ...

Associate Director, Central Government, Solution Architect, Deloitte Digital

Hiring Organisation
Deloitte
Location
Bristol, Gloucestershire, United Kingdom
Salary
£ 60 K
design and development lifecycle, providing architectural guidance and assurance to delivery teams, ensuring adherence to design principles and standards, including the effective use of open-source components and cloud-native development practices.Stakeholder Engagement and Advisory: Facilitate workshops and discussions with diverse stakeholder groups (business, technical, security, policy … regulations and standards. Identify and mitigate architectural risks, proactively addressing potential issues related to performance, security, integration, and scalability, particularly in cloud-based and open-source environments.Team Leadership and Capability Building: Lead, mentor, and develop a team of architects and technical specialists, fostering a collaborative and high-performing ...

Associate Director, Central Government, Solution Architect, Deloitte Digital

Hiring Organisation
Deloitte
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 60 K
design and development lifecycle, providing architectural guidance and assurance to delivery teams, ensuring adherence to design principles and standards, including the effective use of open-source components and cloud-native development practices.Stakeholder Engagement and Advisory: Facilitate workshops and discussions with diverse stakeholder groups (business, technical, security, policy … regulations and standards. Identify and mitigate architectural risks, proactively addressing potential issues related to performance, security, integration, and scalability, particularly in cloud-based and open-source environments.Team Leadership and Capability Building: Lead, mentor, and develop a team of architects and technical specialists, fostering a collaborative and high-performing ...

Staff Solutions Engineer (UK)

Hiring Organisation
Kong
Location
London, United Kingdom
Salary
£ 70 K
events, etc.And any additional tasks required by manager.What You'll Bring:7+ years of pre-sales Solution Engineering or relevant experience at a SaaS, Open-source or Enterprise Software company.Experience working with Open-source technology.Foundational knowledge/understanding of API Management & Integration, Cloud computing trends, Open-source business models.Confident ability to present and lead discussions with C or Director level executives as well as Product Managers and Engineers.Enthusiasm for working in a high profile, fast-paced startup culture.Bonus Points:Previous experience with API Gateway or Service Mesh is preferred.Experience with Docker or Kubernetes.Strong knowledge ...

Open Source DevOps Engineer (Python/Golang) – Cloud & Linux

Location
Greater London, England, United Kingdom
Canonical is a leading provider of open source software and operating systems, with Ubuntu at the core of cloud, AI, and data initiatives. We seek a software engineer to lead a regional team in delivering Python and Go based open source operations code across the Linux ...

Sr. Solutions Engineer

Location
Greater London, England, United Kingdom
their own ground across modern data engineering (Spark, Delta, streaming), machine learning, and Generative AI, and integrate cleanly with their existing cloud and open-source stack. Move at start-up speed: qualify quickly, prove value early, and land in a way that sets up expansion. Make the technical … commercial case against competing tools, including cloud data warehouses, open-source stacks, and hyperscaler services. Demonstrate our Builder Culture and our principle of "show, not tell", supported by the latest AI tooling, to inspire customers on the art of the possible. Contribute to Databricks' technical community by developing ...

Software Engineering Manager (Backend SaaS)

Location
Greater London, England, United Kingdom
Software Engineering Manager (Backend SaaS) Canonical · London Licensed sponsor London On-Site Likely to sponsor About the role Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives … organisation Build automated, highly reliable image delivery, testing and publication pipelines Engage with many other teams at Canonical, as well as the open source community and commercial partners Work from home with global travel 4‐6 weeks per year for internal and external events Valued skills and experience ...

Senior Quantum Software Engineer

Location
Greater London, England, United Kingdom
growing user community. The main responsibilities include: Lead the strategy and design of ORCA's SDK and developer APIs that enable customers, ISVs and open-source community to build, deploy and integrate hybrid quantum classical applications in on-prem and as-a-Service environments using ORCA's photonic …/or HPC (CUDA, multi-GPU, accelerated simulation). Experience with quantum software frameworks (CUDA-Q, PennyLane, Qiskit, etc.). Experience releasing and maintaining open-source software and growing a developer community around it. Experience integrating scientific software with AI/ML tooling. Previous ownership of customer-facing ...

Junior Systems Administrator

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 50 K
main development team. Our client is one of the most famous global quantitative hedge funds. The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is calm and relaxed with an open dress code. This … petabyte storage storage solutions utilising ZFS, Ceph, NVMe and other cutting edge technologies Work on a diverse range of projects – recent examples include utilising Open Source technologies to build our own High Availability Virtual Machine cluster and a bespoke Container creation tool Contribute to the development of configuration ...

AI Technical Innovation Lead

Hiring Organisation
ARM
Location
Cambridge, Cambridgeshire, United Kingdom
Salary
£ 70 K
style integrations, AI coding assistants, and agentic use cases.Contribute to Arm’s emerging technical AI roadmap by assessing models, frameworks, whitepapers, open-source projects, and ecosystem shifts, including areas beyond standard enterprise AI.Lead AI experimentation and incubation, testing new ideas and turning the most promising into proofs … deployment.Solid understanding of AI architecture, cloud platforms, APIs, model-agnostic design, reusable frameworks, and scalable AI engineering practices.Demonstrated ability to turn emerging research, whitepapers, open‐source developments, and new tools into practical, high‐value solutions, moving from concept to MVP and production while balancing speed, engineering quality ...

Full Stack GIS Developer

Location
Altrincham, England, United Kingdom
opportunity to expand your skills, explore new technologies, and grow your career. Many of our projects also leverage Geographic Information Systems (GIS) and open-source geospatial tools, helping clients unlock the value of location data through innovative mapping and spatial analysis solutions. Role Responsibilities This is a varied … deployment pipelines for public and private sector clients, ensuring robustness and scalability. Projects may also include solutions with geospatial data, GIS platforms, and open-source mapping technologies. Collaborate across disciplines: Work closely with Senior and Lead Engineers, Delivery Managers, and colleagues in User-Centred Design and Data Science ...

Systems and Integration Engineer

Location
Cheltenham, England, United Kingdom
complex technical problems cleanly and reliably. We have broad autonomy to pick the right tool for the job, whether that is deploying cutting‐edge open‐source projects, engineering enterprise Windows and Linux systems, or writing custom integrations to tie disparate platforms together. Whether your background is rooted … Linux (RHEL, Ubuntu, Debian) or Windows (Active Directory, PowerShell, Core Services). Prototyping: Curiosity and confidence when exploring unfamiliar tools. Comfortable picking up new open‐source or enterprise technologies, experimenting in a test environment, and building Proofs of Concept to see what works. Network Fundamentals: Strong grasp ...

Systems and Integration Engineer

Hiring Organisation
BT Group
Location
Cheltenham, Gloucestershire, United Kingdom
Salary
£ 70 K
complex technical problems cleanly and reliably. We have broad autonomy to pick the right tool for the job, whether that is deploying cutting-edge open-source projects, engineering enterprise Windows and Linux systems, or writing custom integrations to tie disparate platforms together.Whether your background is rooted in core … either Linux (RHEL, Ubuntu, Debian) or Windows (Active Directory, PowerShell, Core Services).Prototyping:Curiosity and confidence when exploring unfamiliar tools. Comfortable picking up new open-source or enterprise technologies, experimenting in a test environment, and building Proofs of Concept to see what works.Network Fundamentals: Strong grasp of internet ...

Enterprise Account Executive - Northern Europe

Location
Greater London, England, United Kingdom
orchestration of your wildest imagination. n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and without limits. Backed by a fiercely inventive community … work smoothly with SE/CS/Marketing/RevOps and elevate the whole deal team, not just your own activity Nice-to-haves Open‐source/community experience: You’ve sold in or alongside open‐source ecosystems and understand bottoms‐up adoption and PLG signals ...

Technical Product Manager - GenAI Platforms - Agentic Infrastructure - CTO Office

Hiring Organisation
Bloomberg
Location
London, United Kingdom
Salary
£ 70 K
prototype the next generation of infrastructure, hardware, and applications that power the Bloomberg Terminal and beyond. Our work spans AI platforms, cloud infrastructure, open-source stewardship, and generative AI innovation. For over a decade, Bloomberg has been at the forefront of applying Artificial Intelligence … management. We’ll trust you to Define and drive the vision for Bloomberg’s Agentic Infrastructure, with a focus on agentic control planesTranslate emerging open source & industry standards into production-ready, enterprise-grade infrastructure capabilitiesCollaborate across Bloomberg’s AI platform teams to integrate agentic capabilities that support experimentation ...

Technical Product Manager - GenAI Platforms - Agentic Infrastructure - CTO Office London, GBR P[...]

Location
Greater London, England, United Kingdom
prototype the next generation of infrastructure, hardware, and applications that power the Bloomberg Terminal and beyond. Our work spans AI platforms, cloud infrastructure, open‐source stewardship, and generative AI innovation. For over a decade, Bloomberg has been at the forefront of applying AI, ML, and NLP to financial … trust you to Define and drive the vision for Bloomberg’s Agentic Infrastructure, with a focus on agentic control planes Translate emerging open source & industry standards into production‐ready, enterprise‐grade infrastructure capabilities Collaborate across Bloomberg’s AI platform teams to integrate agentic capabilities that support experimentation ...

Data and AI - AI Engineer

Location
City Of London, England, United Kingdom
This role is intentionallyplatform-agnostic . While experience with tools such as Anthropic Claude, OpenAI models (e.g. Codex/GPT), and other frontier or open‐source LLMs is valuable, we are primarily looking for individuals whounderstand core AI engineering principles and can apply them across ecosystems. This … client-facing or consulting environments, as well as leadingteams andprojects Strong communicationand stakeholder management skills Experience across multiple AI platforms (e.g., Claude, GPT, open-source models) Familiarity with orchestration frameworks (LangChain,LlamaIndex, etc.) Experience optimising AI systems for performance, cost, and reliability Knowledge of enterprise architecture and regulated ...

Enterprise Account Executive - Opensource Database Solutions

Hiring Organisation
MBR Partners
Location
London, United Kingdom
Salary
£ 70 K
client is in the database release automation segment of the DevOps market. Their open-source software enables DevOps teams around the globe to accelerate the software delivery process by automating database updates (the solution works across a huge number of databases including PostgreSQL, Snowflake, Databricks, MongoDB, Microsoft … Server, DB2 for zOS and many others.The client is in high growth mode, given their open-source core offering has been downloaded more than 75 million times, and there are a lot of incoming inquiries about moving from their core offering to the Enterprise version, which offers security ...

Senior Developer Advocate - Data Observability

Location
Greater London, England, United Kingdom
more mediums to build Datadog's reputation as a leader in data engineering and observability e.g. building demos, public speaking, blogging, documentation, webinars, open source, research reports and more Partner with and coach internal product and customer engineering teams on effective public communication and presentations for the work … systems 3+ years of experience in advocacy, developer relations, or equivalent experience reaching technical audiences through written content, conference talks, workshops, webinars, videos, or open‐source contributions Publicly available writing samples, demos, repositories, or recordings of technical presentations Familiarity with modern cloud infrastructure and container‐based systems ...

Salesforce/NetSuite Engineering Manager, Commercial Systems

Location
Greater London, England, United Kingdom
Canonical is a leading provider of open-source software and operating systems for global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. Our customers include the world's leading public … skills of their direct reports, and who has the drive to deliver. This is an exciting opportunity to work with great people and exciting open‐source solutions on innovative engineering solutions supporting Canonical's growth. The Commercial Systems unit is conceived as six engineering teams that closely collaborate ...