Average salary: £93,606 /yearly
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- ...Work Set Up: Hybrid (BPSS clearance required) Our client in the Information Technology and Services industry is looking for an API Developer to design implement and maintain secure API integrations and webhook configurations that enable real-time communication between internal...SuggestedHybrid workingRemote
- £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
- £40k - £53k per annumEstimated...We are looking for a a Backend Engineer to leading our API and database this role you will own the data layer that powers our platform... ...thirdparty APIs handling inconsistencies failures and schema changes. Develop and optimise API endpoints using Python and FastAPI to serve data...SuggestedFull-timeSummer workHybrid workingOn-site
£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£40k - £70k per annum
...ownership of high-profile projects Experience designing and implementing scalable solutions for high throughput systems including WebSocket APIs and services Knowledge of queue or stream-based messaging systems (e.g., Amazon SQS, Kafka) Proficient in relational and non-...SuggestedFull-timeClient Server
Covent Garden, Greater London22 hours ago- ...client accounts and analytics, underpinned by a robust, security infrastructure. What you’ll be doing Design and develop scalable, high-performance REST APIs and microservices using C# and .NET Core. Implement cloud-native applications leveraging AWS services including...SuggestedOn-siteFlexible hours
£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£40k - £70k per annum
...business impact Technologies: Backend CI/CD DevOps JavaScript Kafka PostgreSQL RabbitMQ Redis Unix NodeJS API More: We are a global cryptocurrency market data and trade execution technology company located in Central London, experiencing...SuggestedClient Server
South East London22 hours ago- £82k - £106k per annumEstimated...engineering leadership to contribute to an agile team dedicated to developing enhancing and delivering trusted market-leading technology... ...Your technical leadership will be crucial in implementing top-tier API management platform solutions and guiding the team toward integration...SuggestedFull-time
- £43k - £57k per annumEstimatedCompany Description Depop is the community-powered circular fashion marketplace where anyone can buy sell and discover desirable secondhand fashion. With a community of over 35 million users Depop is on a mission to make fashion circular redefining fashion consumption....SuggestedFull-timeHybrid workingOn-siteRemoteFlexible hours
$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... ...Event-Driven Architecture Domain-Driven Design REST API Design Security (e.g. OWASP top 10) Leadership, Communication...SuggestedRemote jobHourly payLive-inFlexible hours£54k - £60k per annum
...Experience with SQL, Oracle, or DB2 databases Knowledge of ACBS APIs, batch jobs, and reporting tools Experience with Unix/Linux... ...version control tools (Git, Bitbucket) Responsibilities: Design, develop, and maintain solutions within FIS ACBS Customize and enhance...SuggestedDaily payFull-timeHybrid working3 days/week83zero Ltd
City of London, Greater London13 days ago- Company: SCOPE AT LIMITED Job Type: ContractSuggested
SCOPE AT LIMITED
London12 days ago - £53k - £69k per annumEstimated...Senior Developer Foster + Partners At Foster + Partners , we design some of the world’s most ambitious and influential buildings. Behind... ...Contributing to technical documentation, architecture, and API specifications Working within Agile/Scrum teams and CI/CD environments...
Foster + Partners
Battersea, Greater London22 days ago - £44k - £57k per annumEstimated...approaches to build solutions or break down technical problems Develops secure high-quality production code and reviews and debugs code... ...and respect Expand the capabilities and adoption of the modern API gateway for external and internal Payments Web APIs High attention...Full-time
£30k - £60k per annum
...JSON JavaScript Liquid Marketing SCSS Shopify TypeScript UX UI Design API Web More: We are looking for a Mid-weight Front-End Shopify Developer to join our team and play a key role in scaling our global DTC e-commerce experience, particularly...Full-timeOn-site5 days/weekHays Technology
Acton, Greater London22 hours ago- £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?...Full-timeRemote
- Contract Job Title: Data Engineer, AI & Data, Defence & Security 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 experience Hands-on...On-site
- ...work will span from translating product ideas and design concepts into polished interfaces, to wiring frontend components with backend APIs, to improving performance, accessibility, and reliability. You’ll collaborate closely with product managers, designers, and AI engineers...Hybrid workingOn-siteRemoteFlexible hours
- £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...Full-time
- £62k - £81k per annumEstimated...to make decisions that matter: data models integration patterns API design scalability choices and how we support a system used by hundreds... ...and care about the impact once its live Help improve developer experience tooling and internal standards Ensure security best...Full-timeOn-site2 days/week
- £68k - £90k per annumEstimated...for this role and help you find others if you ask. Shopify Developer Company Description: Made by Field - Design-led Shopify Plus... ...perfect precision. Integrate complex third-party apps and custom APIs to extend Shopify functionality and meet specific client business...Full-timeRemote
£56.38k - £61.65k per annum
...Salary: £56,376 - 61,653 per year Requirements: Experience developing solutions using the full Microsoft 365 development toolset, including... ...working with data sources including MS SQL, Dataverse, APIs, REST services, JSON/XML, and other integration methods. Strong...Full-timeHybrid workingOn-siteLondon Borough of Barnet
Barnet, Greater London11 days ago- £58k - £79k per annumEstimated...of geographically diversified software engineers responsible to develop scalable solutions by working directly with product development team... ...Boot etc.) Experience in designing and implementing REST APIs & micro services-based solutions. Solid Knowledge of User Interface...Full-timeSecond jobFlexible hours
- £44k - £56k per annumEstimated...design development testing and implementation Designing and developing solutions (configuration and development) in accordance with requirements... ...Java programming and Java-based web application development. MS/APIs - Knowledge of APIGee Kakfa Java Aurora Cassandra Springboot...Full-timeBank staffHybrid workingRemoteFlexible hours
£35k per annum
...features (with guidance) Write clean, reusable PHP and contribute to modern, responsive UI work (HTML/CSS/JS) Assist with RESTful APIs and system integrations (implementing defined tasks) Fix bugs, improve existing code, and contribute to small-to-medium enhancements...Full-timeRecruitmentRevolution.com
Old Street, Greater London8 days ago- £59k - £77k per annumEstimated...growing your skills in a supportive environment. As a Mid-Level Developer you will take ownership of complete features and components work... ...Service Bus. ~ Modern Patterns:Working knowledge of RESTful API designmicroservicesconcepts and event-driven architecture. ~...Full-time
£70k - £80k per annum
...PostgreSQL/MySQL and relational data modelling ~ Experience with API design, integrations, and web services ~ Familiarity with Git... ...engineering standards, and best practices Mentor and support other developers through pairing, coaching, unblocking, and raising capability...Full-timeHybrid workingOn-siteRecruitmentRevolution.com
Old Street, Greater London8 days ago
