51 to 75 of 91 Open Source Jobs in London

Full Stack Engineer -TOP BANK!!

Hiring Organisation
Robert Half Limited
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
technologies. Tech & Projects Include: Python (FastAPI/Flask) JavaScript, REST APIs & SQL Server AI & LLM applications RAG pipelines & agentic AI workflows Locally hosted open-source LLMs Microsoft Power Platform LangChain, LangGraph, Semantic Kernel & Copilot Studio exposure Why this role stands out: Real AI engineering projects - not just ...

Senior Android Developer

Hiring Organisation
Revolut
Location
City of London, London, United Kingdom
Employment Type
Permanent
Fluency in English Nice to have A degree in computer science A perspective on mobile development best practices A GitHub portfolio showcasing personal or open-source projects Experience in financial services Familiarity with test-driven development ...

Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
requirements, then engineer efficient and effective solutions. Develop and maintain our proprietary software stack using C++, Python, and Java. Identifying, assessing, deploying the latest open-source and third-party software in both an on-prem and cloud environment. Relevant Skills and Experiences Significant experience programming ...

Research Engineer, Machine Learning – Paris/London/Zurich/Warsaw

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise as well as personal needs. ...

Commercial Customer Success Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Great candidates may also have one or more of these qualifications: Experience with code review processes and tools Familiarity with AI, software developer, and open source technologies Experience with GTM at early-stage, high-growth, VC-backed startups Familiarity with Git providers, e.g. GitHub, Bitbucket, GitLab, Azure DevOps ...

Senior Rates Developer - Java

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
performance testing prior to UAT. Deploy components into development, test and pre‐production environments. Work with external technical teams when required. Ensure removal of opensource or cyber vulnerabilities, contributing to strong risk and control governance. Participate in intraday or overnight support rota when required. Required Technical Skills ...

Cloud Architect

Hiring Organisation
Inspire People
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
DDaT standards. Lead technical specialists across multiple projects, solving complex architectural challenges and owning the technical design of services. Design and assure secure, open-source and user-centred systems, including integration, interoperability, cloud quality, security and performance. Provide technical governance, present designs to boards such as the Technical ...

Senior Commercial Legal Counsel, EMEA

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high-performance, optimized, open-source and cutting‐edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise as well as personal needs. ...

Research Engineer - Machine Learning (Contractor)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
algorithms for efficient decision‐making under uncertainty with applications to AI for science. Actively engage with the broader research community through publications and opensource contributions. This job description is only an outline of the tasks, responsibilities and outcomes required of the role. The jobholder will carry ...

Operations Engineer

Hiring Organisation
Morningstar
Location
Greater London, United Kingdom
Employment Type
Full Time
Wintel hardware Knowledge of network stacks, protocols and technologies. Demonstrative competency in scripting with Powershell and/or Python Experience with Enterprise and open source monitoring tools such as Splunk or New Relic Experience of working with CI/CD tooling such as GitHub, Bitbucket, Harness, Kubernetes , Terraform … Experience of working both independently and collaboratively in a fast paced, demanding IT environment with a strong focus on business outcomes. Comfortable with collaboration, open communication and reaching across functional borders. Any experience in the financial services industry is also a plus. Morningstar's hybrid work environment gives ...

Lead Solutions Architect (Digital Natives Business)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Established presence in the technical community (e.g., high‐impact blog, regular public speaking at major conferences like Data+AI Summit, AWS re:Invent, or significant opensource contributions). About Databricks Databricks is the data and AI company. More than 10,000 organizations worldwide — including Comcast, Condé Nast, Grammarly … ability, political affiliation, race, religion, sexual orientation, socio‐economic status, veteran status, and other protected characteristics. Compliance If access to export‐controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such ...

Site Reliability Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions & build new data centres Automate anything and everything with Python & config tools Innovate whilst bringing in new ideas Requirements Genuine passion in Linux & Open-source Excellent knowledge of Python Use of CI/CD, Docker, Ansible, Chef, Puppet Knowledge of large-scale storage systems (on-prem) What ...

Lead Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solving ambiguous and complex challenges. Experience working on software infrastructure or building Cloud native software using Kubernetes. Understanding of systems design and Open Source components. If you have knowledge of building virtual machines - Virtual servers, virtual networking or network programming - that\'s a plus... but definitely not needed ...

Product Counsel

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Product, Engineering, and R&D teams across the entire product lifecycle to identify and address legal risks in areas including AI, IP, privacy, security, open source, and marketing. Support commercialization efforts by advising Go-To-Market and Business Operations teams on product positioning, licensing models, and regulatory issues. ...

Android Developer

Hiring Organisation
Revolut
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Fluency in English Nice to have A degree in computer science A perspective on mobile development best practices A GitHub portfolio showcasing personal or open-source projects Experience in financial services Familiarity with test-driven development ...

Data Architect, Google Cloud

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
Professional Data Engineer, Professional Cloud Architect). Experience designing and implementing data governance, security, and compliance in a highly regulated environment. Experience contributing to opensource data projects. Familiarity with machine learning and AI concepts and their application in data management and analysis. Knowledge of emerging agentic technologies ...

Red Team Lead

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
following would be advantageous: Experience emulating named threat actors or advanced persistent threats Vulnerability research or proof-of-concept development Contributions to open-source security projects Conference speaking, technical blogging, or published research Experience working within frameworks such as CBEST, GBEST, TIBER-EU, or equivalent threat-led testing ...

Senior Director, Frontier Technology

Hiring Organisation
Fitch Group
Location
Greater London, United Kingdom
Employment Type
Full Time
hands-on level—but you also see the bigger picture. You have relentless curiosity. You're already tracking what Anthropic, OpenAI, and the open-source community are shipping. You have opinions on what's hype versus what's real. You communicate with clarity and conviction. Complex technical concepts ...

Principal Engineer - Edge Delivery & Observability

Hiring Organisation
Financial Times
Location
Greater London, United Kingdom
Employment Type
Full Time
Gateway team is a contract team, based in Bulgaria, who work on our API Gateway stack. This is built on top of Tyk, an open source API Gateway. Both teams are part of the Infrastructure & Operations Group at the Financial Times. We have a devops culture of empowered … teams across FT to make sure we are all working together effectively Model and help set and reinforce our inclusive, respectful, multidisciplinary and open culture Help continuously improve our technology, process and culture, take ownership of problems and see solutions through to completion Manage and maintain strong relationships with ...

VP of Network Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
scale. You set the bar, the culture, and the bench. Build a team that writes things down. Push our source‐of‐truth (Nautobot) and config automation (Jinja‐based generation) forward with the Systems and Dev teams, so the network is driven by data rather than tribal knowledge. … Nairobi and on calls with partners in the same time zone. Nice‐to‐have Experience running or contributing to SONiC, FRR, or other opensource networking stacks. Automation chops (Python, Go, or Bash), especially against NETCONF/gNMI, Nautobot, or Jinja‐driven config pipelines. IPv6 planning and dual ...

EMEA Deal Strategy & Operations Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
real world, helping developers move from prototypes to production‐ready AI agents that teams can rely on. We began as widely adopted opensource tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series ...

Sales Director UK&I

Hiring Organisation
SnooprID
Location
City of London, London, United Kingdom
driving the sales growth of a market leading and Enterprise wide Managed Cloud BPO services portfolio around AI influenced ERP/CRM/Open-Source/Data & FinTech solutions (including digital transformation projects) within UK & I and the wider European territory in the future. You will be responsible ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £115000/annum
commercial C++ expertise Significant bias towards C++ development Genuine passion for writing clean, performant code Bonus if : Commercial C++ experience Have worked on open-source projects Have an activity portfolio of personal C++ projects Full details are available. Please don't hesitate to get in touch. ...

Cyber Threat Intelligence Analyst

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Contract
closely related security issues. Familiarity with cyber threat frameworks, for example MITRE ATT&CK, the Diamond Model and the Intelligence Cycle. Experience using open-source and commercial research methods, threat intelligence platforms or security tooling. Strong analytical skills with the ability to recognise patterns and reach balanced, well ...

Junior Intelligence Consultant

Hiring Organisation
BrighterBox
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£31,000 - £35,000 per annum
Experience with SaaS platforms or client delivery work Working with data or analytics Interest in Regtech, AI or risk intelligence Any familiarity with open-source research or due diligence Interview process: Initial interview - focused on motivations and communication style (virtual or in person) Timed remote task - testing your ...