Average salary: £68,375 /yearly

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  •  ...Job Description Role Title: Java Open Source Contributor Role Type: Contract Location: Remote Scope of Work: Contribute production-quality code, reviews, and documentation to open-source repositories relevant to the customer's project.... 
    Suggested
    Remote job

    YO AI Labs

    London
    a month ago
  • £77k - £103k per annumEstimated
     ...single points of failure, using scalable architectural patterns. Develop secure code so that our customers and ourselves are protected...  ...platform that use other languages as needed. We look to use Open source when it makes sense and build ourselves when it doesn't. We... 
    Suggested
    Long-term contract
    On-site

    JPMorgan Chase & Co.

    London
    more than 2 months ago
  • £75k - £100k per annumEstimated
     ...powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and...  ...creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career... 
    Suggested
    Hybrid working
    On-site
    Shift work

    WPP

    London
    a month ago
  • £70k per annum

     ...Tech: HTML5 CSS3 JavaScript Angular / React Challenge: Develop Greenfield systems and increase functionality for existing high transaction...  ...be prototyping a new feature for the product, working on an open source project, data integration, or learning a new skill. •... 
    Suggested
    On-site

    Quant Capital

    London
    more than 2 months ago
  • £54k - £73k per annumEstimated
     ...the NHS. ABOUT THE ROLE We are looking for a Full Stack Developer to join our engineering team at our Canary Wharf headquarters....  ...define engineering processes and standards - Contributions to open-source projects LOGISTICS - Education: We value skills and... 
    Suggested
    Full-time
    On-site
    Immediate start
    5 days/week
    Flexible hours

    QuantumLoopAI

    London
    a month ago
  • £66k - £96k per annumEstimated
     ...behind these scams and gets them disabled at source. We report them to the mobile carriers and...  ...’ll need to be successful    Experience developing and maintaining production backend systems...  ...concepts clearly and concisely.   Open to using AI tooling in software development... 
    Suggested
    Long-term contract
    Hybrid working
    On-site
    Flexible hours

    Netcraft

    London
    a month ago
  • £80k - £110k per annum

     .... Write fluent technical documents and developer tickets distilling product requirements into...  ...data architectures, including event-sourced data models. The salary We expect to...  ...,000 - £110,000 for this role. But, we’re open-minded, so definitely include your salary... 
    Suggested
    Full-time
    Hybrid working
    Flexible hours
    Night shift

    iwoca.co.uk

    London
    5 hours ago
  • £77k - £100k per annumEstimated
     ...digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’...  .... Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes across a wide range of chains and ecosystems... 
    Suggested
    Long-term contract

    Fireblocks

    London
    18 days ago
  • £59k - £77k per annumEstimated
     ...About the Role We're seeking talented mid level backend developers to join our team. You'll play a pivotal role in individual contribution...  ...you write a blog, help with friends' websites, contribute to open source projects etc.) You've worked with LLMs such as Claude, and... 
    Suggested
    Full-time
    Hybrid working
    On-site
    Remote
    Work from home
    Flexible hours

    SeedLegals

    London
    3 days ago
  • £67k - £89k per annumEstimated
     ...Collaborate with backend engineers and product managers to design, develop, and deliver new features while offering technical input on API...  ...mechanisms, and proprietary state management built on top of open-source technologies.   About the Team:   - Mission: Deliver... 
    Suggested
    Full-time
    Hybrid working

    pigment

    London
    more than 2 months ago
  • £62.89k - £77.88k per annum

     ...tech non-profit founded in 2021. TransitionZero builds software to reduce the time to build clean energy at scale. We pioneer open-access and open-source tools that make electricity system modelling more transparent, accessible, and actionable for governments, financiers and... 
    Suggested
    Long-term contract
    Full-time
    Shift work

    TransitionZero

    London
    18 days ago
  • £62k - £82k per annumEstimated
     ...the centerpiece of our brand — the public source of truth about Intercom’s products and the...  ...performant experiences across web and mobile. Develop backend logic and APIs , manage data...  ...days per week. We have a radically open and accepting culture at Intercom. We avoid... 
    Suggested
    Hybrid working
    On-site
    Work from home
    Flexible hours
    Weekday work

    Intercom

    London
    more than 2 months ago
  • £36k - £48k per annumEstimated
     ...senior engineers. Help build interactions across multiple data sources, services, and blockchain protocols. Learn to model real...  ...demonstrate equivalent practical ability. Nice to Have Personal or open-source projects, or a GitHub profile we can look at. Exposure... 
    Suggested
    Full-time
    Internship
    Hybrid working
    Remote
    Flexible hours

    Software Engineering

    London
    more than 2 months ago
  •  ...they're now looking for a rockstar, jack of all trades backend developer to help to build the next generation of the apps that enables the...  ...An interest in financial markets and investment Passion for open-source technology and engaging with the wider technology community... 
    Suggested

    Dazzle: Commercial & Office Cleaning | London

    London
    more than 2 months ago
  • £59k - £79k per annumEstimated
     ...and Digital Democracy. The Role: As a Full Stack GIS Developer at Informed Solutions, you’ll play a key role in shaping, building...  ...also leverage Geographic Information Systems (GIS) and open-source geospatial tools, helping clients unlock the value of location... 
    Suggested
    Full-time
    Hybrid working
    On-site
    Flexible hours

    Informed Solutions

    London
    a month ago
  •  ...Zaizi is looking for a Senior Software Developer with solid technology skills, but who is also...  ...tools: Maven, Gradle, Ant Familiar with source control systems, such as GIT, including...  ...Nice to have skills: AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti... 
    Shift work

    Zaizi

    London
    a month ago
  •  ...you'll be part of a supportive and collaborative team that values open communication, shared successes, and meaningful relationships....  ...platform that maps large datasets and merges PIM data with external sources to stay compliant across every destination's regulatory... 
    Hybrid working
    Remote
    Work from home
    Flexible hours

    Akeneo

    London
    more than 2 months ago
  •  ...future of civilization. What You'll Be Doing: Designing, developing, and deploying scalable and robust SaaS applications using Python...  ...technologies, e.g. Docker, Kubernetes. Contributions to open-source projects. Familiarity with space situational awareness, space... 
    Full-time

    foundational

    London
    5 hours ago
  • £91k - £120k per annumEstimated
     ...safeguarding your Personal Data. We have developed policies and processes which are designed...  ...Personal Data fairly and lawfully, and being open and transparent about such Processing. For...  ..., scikit-learn to name a few of the open-source libraries we use extensively. We implement... 
    Long-term contract
    On-site
    Flexible hours

    Man Group

    London
    more than 2 months ago
  • £92k - £122k per annumEstimated
     ...The Equities Derivatives Front Office Flow Technology Team is developing the best in class pricing, quoting and market view application...  ...oriented platforms, and a good understanding of current generation open source frameworks About Us J.P. Morgan is a global leader in... 
    Long-term contract

    JPMorgan Chase & Co.

    London
    3 days ago
  • £75k - £97k per annumEstimated
     ...capabilities across any environment and data source; and an unmatched ecosystem trusted by 84...  ...inside the Neo4j Aura console. Develop and maintain the in-app GUI for the Neo4j...  ...) (we)-[:THRIVE_IN]- (:Culture {type: [‘Open’, ‘Inclusive’]}) (we)-[:ASSUME]- (:Intent... 
    Hybrid working

    Neo4j

    London
    4 days ago
  • £150k - £200k per annum

     ...0 + bonus Quant Capital is urgently looking for a Crypto FPGA Developer to join our high profile clients Team Our client is a well known...  ...The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is... 
    Remote

    Quant Capital

    London
    more than 2 months ago
  • £72k - £95k per annumEstimated
     ...estate.   Coaching & Influence   Be a source of mentorship and thought partnership for...  ...that you approach it with curiosity and an open mind.   Why This Role?  Influence some...  ...careers that open doors and help our team develop by providing an open and inclusive work environment... 
    Long-term contract
    Full-time
    Hybrid working
    On-site
    Work from home
    Shift work

    Rightmove Careers

    London
    more than 2 months ago
  •  ...Organisation (ITO). We are building proprietary AI infrastructure, developing consumer and enterprise digital products, and creating the data...  ...with production research experience Published research, open source work, conference talks, or other visible engineering community... 
    Long-term contract
    Permanent

    FlightStory

    London
    15 days ago
  • £90k per annum

     ...JavaScript Developer UI React TypeScript – Up to £90,000 p/a Quant Capital is urgently looking for a JavaScript Developer to...  ...write code. To deliver quickly you will leverage the best of the open source community, sometimes substituting your own solutions where... 
    Long-term contract
    On-site

    Quant Capital

    London
    more than 2 months ago
  • £27k - £36k per annumEstimated
     ...organisation that empowers our people to take ownership, innovate, and develop their expertise. As an equal opportunities employer, we are...  ...and AI model deployment pipelines. Contributions to open-source projects or technical communities. Benefits ~ Competitive... 
    Full-time
    Flexible hours

    Solirius Reply

    London
    a month ago
  • £55k - £73k per annumEstimated
     ...Excellent hands-on experience with Java and associated technologies. • Experience working with Spring Boot. • Hands-on knowledge of open-source tools, libraries and standards. • Some working knowledge of containers (Docker). • Strong experience of working in Test Driven... 
    Full-time

    Accenture

    London
    a month ago
  •  ...electronic-trading experience 4. Current base in the UK, NL, or FR and openness to a remote 12-month contract How we hire (AI transparency...  ...tools in parts of our recruitment process, including candidate sourcing and initial screening support. In line with the EU AI Act and... 
    Permanent
    Full-time
    Remote

    WhyHireWrong?

    London
    5 days ago
  •  ...maintainable, extendable services from first principles. We're open on language. PHP experience is useful (it's our primary stack),...  ...Cloudflare for CDN, queueing and workers Github and Github Actions for source control and CI Incident.io for incident management Datadog... 
    Long-term contract
    Hybrid working
    On-site
    Remote

    Ticket Tailor

    London
    1 day ago
  • £103k - £132k per annumEstimated
     ...Java Software Developer – Trading Systems (Remote) Amsterdam or London Quant Capital is partnered with a leading technology-driven...  ...requirements • Improve performance across internal software, open-source tools and Linux environments • Work on monitoring, alerting... 
    Remote

    Quant Capital

    London
    more than 2 months ago