Average salary: £93,620 /yearly
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- £76k - £101k per annumEstimated...their teammates. About the team You will work on the team that is responsible for the backend services that power grok.com and our API. Our team is currently based primarily in London with a small but growing number of engineers located in Palo Alto. We focus on writing...SuggestedOn-siteWork from home5 days/week
- £68k - £90k per annumEstimated...efficient financial markets infrastructure. At Flowdesk, our APIs are how the outside world trades with us. We’re opening a new... ...clear, accurate, and up-to-date API documentation that external developers actually want to read. Build secure, robust authentication flows...SuggestedFull-time
£100k - £120k per annum
...delivery speed. You'll work on complex systems that directly unblock organisational velocity, using AI to analyse codebases, extract clean APIs, refactor safely, and deliver fully tested, production-ready services. Alongside modernisation, you'll build the AI-powered...SuggestedFull-timeHybrid workingOn-site- ...Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines...SuggestedHybrid working
£450 per day
...Job description Mid-Level .NET / Full Stack Developer – Hybrid – £450/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven We have a great opportunity for a Mid-Level .NET / Full Stack Developer to join a growing payments company. As...SuggestedFull-timeHybrid workingOn-siteLondon21 hours ago£65k per annum
...C# API Developer £65,000 Plus Bonus Home work and flex work encouraged Quant Capital is urgently looking for a C# .NET Developer to join our high profile client. Our client is the world leader in Market data management systems, with clients globally such...SuggestedWork from home£350 - £500 per day
...API Software Developer – HIRING ASAP Start date: ASAP Duration: 12-month contract Location: Remote Rate: £350 - £500 per day PAYE Summary Our client is seeking a skilled Software Developer for a temporary assignment based in London, UK. This position offers...SuggestedTemporaryImmediate startRemote$200k per annum
...capable of through live sessions led by subject-matter experts. Developers attend a 60-90 minute session every week or two, learning... ...Development Event-Driven Architecture Domain-Driven Design REST API Design Security (e.g. OWASP top 10) Leadership,...SuggestedRemote jobHourly payLive-inFlexible hours- Company: SCOPE AT LIMITED Job Type: ContractSuggested
SCOPE AT LIMITED
London2 days ago - £49k - £65k per annumEstimated...Goland Developer Times Fastest Growing Quant Capital is urgently looking for a Golang Developer to join our high profile client in their... ...t have to be commercial PostgreSQL Celery Ideally APi Development You will gain exposure to NumPy, SciPy, pandas,...Suggested
- £48k - £66k per annumEstimated...to expand our team with the addition of an experienced Microsoft developer / lead developer that has an appetite for technical design and the... ...strong understanding of Logic Apps, Web Apps, Service Bus, Azure Functions, API Management and other Azure integration resources?...SuggestedFull-timeRemote
- Contract Job Title: Data Engineer, AI & Data, Defence & Security (DV clearance required) Contract Start Date: March 2026 Contract Length: Likely 6 months Contract Classification: Inside IR25 Contract Location: London (2/3 days in the office) Azure apps development...SuggestedOn-site
£90k per annum
...NodeJS Developer – Fintech To £90,000 Quant Capital is urgently looking for a JavaScript / NodeJS Developer to join our high profile... ...Work closely with the platform engineering team to flesh out APIs and prototype quickly. Define and create test suites proving your...SuggestedHybrid workingOn-site- £49k - £65k per annumEstimated...team having a big impact. Responsibilities ~ Design and develop scalable internal platforms and applications for core business functions... .... ~ Proven experience designing and developing robust APIs, microservices, and backend systems that power business-critical...SuggestedFull-time
£50k per annum
...Senior Front Office Developer – HFT Senior Software Engineer, Quant trading – Python, RUST, C++ London (Hybrid) £150,000-2000,000 + £50k+... ...Proficiency in inter-process messaging, micro-service architectures, and API design. Familiarity with Functional Programming and Immutable...SuggestedHybrid working£110k - £120k per annum
...shipping features that reach thousands of business users. What you'll do Architect, build, and evolve robust Back End services and APIs in PHP with a strong focus on performance, scalability, and reliability . Drive profiling and tuning for high-concurrency/low-...PermanentFull-timeRemote€195k per annum
...Rust Developer Trading Remote Up to €195,000 Plus Stock Options and bonus Quant Capital is urgently looking for a Rust Developer... ...external tools to support trading activities Integrating the APIs of cryptocurrency exchanges, banks and brokers Setup and...Remote£55k - £60k per annum
...hiring a Backend Engineer (PHP) remote in the UK to help scale the API backbone of our savings and investment platform. This role is... .... Chip is being built by a fast-growing team of designers, developers, customer service professionals, marketers, banking experts, and...Long-term contractRemoteMonday to ThursdayFlexible hoursWeekend workAfternoon shift$200k per annum
...This is a remote position. The employer develops a breakthrough high-performance onchain exchange that delivers institutional grade execution... ...layers to be consumed by the UI and Risk Dashboards via scalable APIs and WebSockets. System Architecture: Define the high-...PermanentRemoteFlexible hours- ...analytics and monitoring use cases. What You'll Be Doing Design, develop and maintain large-scale KDB+/q systems for Real Time and... ...replay Implement performant time-series data models, schemas, and APIs Optimize q code for latency, throughput, and memory efficiency...On-site
- £38k - £50k per annumEstimated...is the place for you! Essential Duties And Responsibilities Develop and maintain the frontend for the Uphold digital wallet, ensuring... ...feedback. Collaborate closely with backend engineers to integrate APIs and backend services seamlessly into the frontend, ensuring...On-siteWork from home
Uphold
London4 days ago - £39k - £50k per annumEstimated...looking for We're looking for a detail-oriented Frontend Component Developer with solid experience in JavaScript frameworks, component-driven... ...enjoy the craft of building reusable UI, taking pride in clean APIs, thorough documentation and pixel-perfect implementation. This...Full-timeHybrid workingOn-siteWork from home
- £69k - £90k per annumEstimated...team who help keep the UK safe? Join BAE Systems as a Front-End Developer. As a key member of a Software Engineering team, you’ll be working... ...teams and drive best practice Applied knowledge of Node API and node scripting Experience with JavaScript test frameworks,...Full-timePart-timeHybrid workingOn-siteRemoteFlexible hoursShift work
£15k - £20k per annum
...Requirements: Proven commercial experience working as a Front-End Developer within the Public Sector. Active SC Clearance. NPPV3... ...for efficient deployment. Integrate with back-end services and APIs, ensuring seamless data flow. Maintain CI/CD pipelines for ongoing...Full-timeImmediate startRemoteHays Technology
London8 days ago£345.86 per day
...00 End Time : 17:00 Salary: £345.86 per day The Front End Developer is responsible for creating high quality web applications using HTML... ...template languages such as liquid, JavaScript, HTML, and CSS. API development, working with REST and OData protocols Strong...Full-timeInterimImmediate start- £39k - £51k per annumEstimated...Working experience with JavaScript/TypeScript and at least one modern JavaScript framework (React, Angular, Vue), HTML, CSS, Git, and APIs is essential ~ Familiarity with browser testing and debugging ~ Experience writing unit and integration tests ~ An understanding...Full-timeRemoteFlexible hoursNight shift
- ...Role Description As a Frontend Developer at Eeze, you will be part of a fast-paced, innovative team building web-based gaming applications... ...-end developers and designers to ensure seamless integration of APIs and UI/UX designs. Participate in code reviews, technical discussions...
- £82k - £108k per annumEstimated...single points of failure, using scalable architectural patterns. Develop secure code so that our customers and ourselves are protected... ...Experience with cloud technologies and distributed systems, RESTful APIs and web technologies. Knowledge of messaging frameworks....Long-term contract
- ...Lead Frontend Developer Remote with ad-hoc travel to Manchester || Experience within UK central government required The Company... ...similar). ~ Hands-on experience building and consuming REST APIs . ~ Strong knowledge of responsive design and accessibility...RemoteFlexible hours
- £54k - £72k per annumEstimated...openly, and with over 400 professionals, including tax experts, developers, and IT security experts, we're rich in ideas and voices. The group... ...have professional experience of building robust and scalable APIs. You’re familiar with software development processes, tools and...Full-timeHybrid workingOn-siteFlexible hours
