Average salary: £83,452 /yearly
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- £89k - £120k per annumEstimated...Role: Senior Backend Engineer / Integration Engineer (Python, APIs, Distributed Systems) Location: London, Onsite Full Time... ...hands-on backend/integration engineer responsible for designing, developing, testing, and supporting automation for the Deal Entry Portal (DEP...SuggestedDaily payFull-timeImmediate start
£55k - £70k per annum
...connected third-party services. You will use PHP and Symfony to develop a portfolio of production integrations while also contributing to... ...launch and ongoing production support Strong understanding of REST APIs, webhooks, OAuth, rate limiting, retries, idempotency, queues and...SuggestedLong-term contractFull-timeRemoteRotating shiftsWeekend work£60k - £75k per annum
...: £60,000 - 75,000 per year Requirements: Strong commercial experience with Java and Spring Boot. Experience developing microservices and RESTful APIs. Commercial frontend development experience with Angular, React, or Vue.js; Angular is preferred, and candidates...SuggestedPermanentFull-timeHybrid workingOn-siteWork from homeAvanti Recruitment
Marylebone, Greater London11 days ago£60k - £75k per annum
...: £60,000 - 75,000 per year Requirements: Strong commercial experience with Java and Spring Boot. Experience developing microservices and RESTful APIs. Commercial frontend development experience with Angular, React, or Vue.js; Angular is preferred, and candidates...SuggestedPermanentFull-timeHybrid workingOn-siteWork from homeAvanti Recruitment
Marylebone, Greater London11 days ago£30k - £55k per annum
...30,000 - 55,000 per year Requirements: Demonstrated expertise as a Senior Backend Developer. Proficiency in Python as our primary language. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding...SuggestedFull-timeHybrid workingRullion - Eon
City of London, Greater London3 days ago- ...responsibility. Production experience with TypeScript/JavaScript, Node.js, API design, asynchronous programming, SQL, and relational data... .... Financial services or banking experience. Full-stack developers will also be considered. Desirable experience includes...SuggestedTemporaryHybrid working
Hays Technology
City of London, Greater London1 day ago £65k - £80k per annum
...Senior Full Stack Developer A unique opportunity for a Senior Full Stack Developer to join a well-funded early-stage technology company... ...-edge software platform, working across the front end, back end, APIs and data-driven workflows. Taking ownership of features throughout...SuggestedLong-term contractFull-timeHybrid workingOn-siteRemote£65k - £75k per annum
...Requirements for Senior Front-End Software Engineer: Strong commercial experience developing modern front-end applications using React, Next.js, TypeScript and REST APIs Commercial experience with front-end testing, writing clean, maintainable code, and delivering...SuggestedLong-term contractHybrid workingOn-siteRemote£70k - £90k per annum
...Holborn Our Client wants to recruit a Senior Front End Software Developer with at least 7 to 10 years expertise of working with D3 React... ...manipulation and the JavaScript object model Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web...SuggestedFull-time- £41k - £56k per annumEstimated...We are looking for two Boomi Developers with the following experience: Hands on Boomi experience. Able to translate business requirements... ..., and unit-test Boomi processes, connectors, mappings, and APIs. Maintain test scripts, troubleshoot integration issues, and...SuggestedRemote
£70k - £100k per annum
...is an outstanding opportunity to join an ambitious AI business developing solutions that help financial institutions automate complex financial... ...through to deployment, working across frontend, backend, APIs, databases and AI-powered workflows. You'll collaborate closely...SuggestedFull-time- £59k - £81k per annumEstimated...prioritisation of what to test. ~ Evaluate and help roll out LLM-based developer tools, for example Claude Code and similar, integrating them... ...with the Atlassian ecosystem (Jira, Confluence) and its APIs. ~ Prior experience in financial services, trading platforms,...SuggestedLong-term contractHybrid workingOn-siteFlexible hoursShift work
- £79k - £103k per annumEstimated...give you the platform to define what comes next. Join us at IG – the future gets built here. Your Team Join IG's public-facing API team, who own open spec trading APIs and FIX protocol using cutting edge tech for IG intuitional clients. Delivering secure, high-...SuggestedFull-timeHybrid workingOn-siteImmediate startFlexible hours
£45k - £60k per annum
...automation and customer acquisition. We are looking for a senior web developer to join our small agile team. You will be responsible for 6... ...and experience of hosting solutions ~ Experience with standard APIs ~ Experience with the maintenance, support and enhancements of...SuggestedPermanentFlexible hoursNight shift- £90k - £117k per annumEstimated...with the opportunity to influence technical decisions. - Keep learning - tackle problems involving algorithms, financial models, APIs and large datasets. - Make your work count - see your code move beyond development and become part of a live, customer-facing...SuggestedPermanentHybrid working
£45k - £50k per annum
C# .net Developer ? Insurance Our Client is an insurance underwriter in the City of London. They are now looking to grow their software... ...Expert in C# Development coupled with Java/jQuery Web development Web API, CSS. You will have solid SQL Server experience (stored...Full-timeOn-siteFlexible hours£50k - £75k per annum
C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit... ...Integrating to external reporting/tradeflow and pricing APIs. Maintaining the company?s daily operation on the existing platforms...Full-timeOn-site£100k - £110k per annum
...skills with JavaScript/TypeScript and Node.js Experience building APIs, backend services and cloud-based applications Familiarity... ...a Technical Lead Engineer for a tech-for-good business developing software for the care sector. This role combines technical leadership...Full-timeHybrid workingSpectrum IT Recruitment
City of London, Greater London12 hours ago- ..., Kafka, Kubernetes and Python. Key Responsibilities * Design, develop and maintain scalable data engineering solutions and services. *... ...applications. * Python - experience developing scripts, applications, APIs or data-processing solutions. * Strong understanding of software...TemporaryHybrid working
£90k - £100k per annum
...a full stack team, 2 front-end (TypeScript) and 2 back-end (Go) developers Collaborate with cross-functional teams to translate business... ...architecting systems ~ Comfortable integrating with external APIs and systems ~ Proven track record of technical leadership and...Long-term contractHybrid workingOn-site3 days/week£90k - £95k per annum
Frontend Engineer (UI/UX ) This is a Perm role In partnership with Robert Half Ltd and Tony Koyratty Location: Central London (3 days onsite and 2 days from home) THIS IS A UI/UX Focused role. YOU MUST HAVE STRONG UI/UX FOCUS Join a fast-growing, ...PermanentHybrid workingFlexible hours£45k - £70k per annum
A global technology transformation consultancy, offering a blend of strategic, creative and scientific capabilities. Proud to have been consistently recognised as a top employer in the UK, reflecting their commitment to creating an exceptional workplace for our people. If...Full-timeOn-siteFlexible hours£55k - £65k per annum
...Software Engineer specialising in Salesforce , you’ll design, develop, test and support solutions across an evolving enterprise Salesforce... ...Java, C#, JavaScript, TypeScript or Python. Understanding of APIs, data modelling, version control, testing and CI/CD. Experience...Long-term contractFull-timeOn-siteFlexible hours- Job title: Front End Developer (Vue.js / React) Contract: 12 months Location: London - Hybrid Start Date: ASAP IR35: Inside IR35 Sector: Public Sector We are currently recruiting for an experienced Front End Developer to support a major Public Sector digital programme based...Hybrid workingImmediate start
- £110k - £144k per annumEstimated..., evaluating output, and reviewing critically. • Contribute to developer experience and automation more broadly — AI-assisted testing, documentation... .... • Other market connectivity: native or binary exchange APIs (ITCH / OUCH and similar), broker and LP APIs, market data feeds,...Flexible hours
- ...performance fixes). ETL orchestration & data movement Design and develop robust ETL pipelines orchestrated in Airflow , including... ...separation Strong software engineering foundations: Python, APIs, configuration management, architecture design, testing strategy,...Long-term contract
£350 per day
...Senior Dynamics 365 CE Developer, Global (UK and Europe) Engagement: Day rate contract. Minimum 5 years. Start: November 2026 Location: Hybrid... ...team. Key responsibilities Build complex plugins, custom APIs, PCF controls and client-side logic. Build high-volume...Daily payHybrid workingWork visa- ...of SIP, RTP/RTCP, and SDP. Experience integrating cloud speech APIs, such as AWS Transcribe/Polly, Azure Speech, or Google Cloud... ...Docker and Kubernetes in cloud environments. Responsibilities: Develop, test, and maintain mid-to-high performance SIP-based voice services...Hybrid working
Experis
Holborn, Greater London10 days ago £62k - £75k per annum
...concepts Experience with one or more of the following: GenAI, LLM APIs, AI/ML solution design and deployment, chatbots or agents,... ...vector databases, or ML engineering Responsibilities: Design, develop, and implement AI-driven solutions to address complex business challenges...Full-timeHybrid workingWork from homeMichael Page
Strand, Greater London4 days ago- Job title: AI Developer (Backend & Frontend) Location: London (Hybrid, Minimum 2 Days Onsite per Week) Contract Length: 12 Months IR35 Status... ...& Tokenisation | AWS Services | Git / Version Control | REST APIs | Authentication, Authorisation, Firewalls & API Gateway Frontend...Long-term contractTemporaryHybrid workingFlexible hours
