Average salary: £85,919 /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
£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...SuggestedFull-timeInterimImmediate 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£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£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 - £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- £65k - £84k per annumEstimated...Join us as a Senior Java Developer in Private Bank & Wealth Management and contribute to the Investments Transformation Program, a strategic... ...enterprise applications. Validated expertise in Spring Boot 4.x, REST APIs, and Microservices, designing and implementing modern cloud-...SuggestedPermanentFull-timeOn-site
- £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
- £92k - £120k 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
Robert Half
City of London, Greater London22 days ago £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...SuggestedFull-timeOn-siteFlexible hours£50k - £60k per annum
C# .NET Software Developer with FX Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software... ...Integrating to external reporting/tradeflow and pricing APIs. Maintaining the company?s daily operation on the existing platforms...SuggestedFull-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...SuggestedFull-timeHybrid workingSpectrum IT Recruitment
City of London, Greater London10 hours ago£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, ...SuggestedPermanentHybrid workingFlexible hours- £47k - £61k per annumEstimated...Build and support integrations between the website, Chord, Braze, OneTrust, and related services using APIs, webhooks, and established integration patterns. - Develop SQL and dbt models that turn customer and event data into reliable datasets for engagement and personalisation...PermanentFull-timeOn-siteRemote
- £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
£40k - £70k per annum
...production Experience mentoring or supporting fellow engineers Strong communication and stakeholder management skills Experience developing and supporting applications in Linux environments Proactive, ownership-driven mindset Desirable: C++20, Python development,...Long-term contractFull-timeOn-siteFlexible hoursRotating shiftsHuxley Associates
City of London, Greater London4 days ago- £30k - £39k per annumEstimated...will work with experienced engineers and product stakeholders to develop, evaluate, deploy, and improve LLM and machine-learning applications... ...with SQL and data-processing workflows. Experience building APIs or backend services. Exposure to AWS or another cloud platform...Full-timeInternship
- ...In this role, you will design, develop, and maintain high-quality iOS applications that deliver exceptional user experiences. Working closely... ..., and user-focused mobile interfaces Optimise RESTful APIs and third-party services Write clean, scalable, and efficient...PermanentPart-timeHybrid workingFlexible hours
£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£308.33 per day
...generation digital platforms. This is an exciting opportunity to develop and enhance intelligent AI agents, copilots and machine learning... ...agents and copilot solutions using Python. Build and integrate APIs, agent tools and Model Context Protocol (MCP) servers to connect...Daily payHybrid workingOn-site£75k - £90k per annum
...Consultant / Solutions Architect / Python / Java / C++ / C# / Artificial Intelligence / Generative AI / Large Language Models / LLMs / APIs / Cloud Computing / AWS / Microsoft Azure / Google Cloud Platform / TypeScript / JavaScript / React / Node.js / SQL / Computer Science...On-siteWork from home£18k - £19.44k per annum
...testing Responsibilities: Contribute to both front-end and back-end development of applications and APIs interacting with the Azure Databricks platform Develop user interfaces using modern front-end frameworks to ensure a seamless user experience Develop robust and...Full-timeOn-siteRemoteExperis
City of London, Greater London11 days ago- ...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
City of London, Greater London10 days ago £60k - £70k per annum
...Copilot Application Developer – London (Hybrid) – Up to £70,000 We’re working with a leading professional services organisation that is... ...Automate Desktop and RPA tools. Supporting integrations with APIs, external platforms, and business systems. Working with Dataverse...PermanentHybrid working£50k - £60k per annum
...ownership of defined tasks, work independently and collaborate with technical and non-technical colleagues. Responsibilities: Develop and maintain software features, enhancements and bug fixes from Jira tickets, clarifying requirements and scoping technical solutions...Full-timeRemoteStratospherec Ltd
City of London, Greater London11 days ago£60k - £100k per annum
...issues to ensure system reliability. Participate in code reviews and provide constructive feedback to team members. Stay updated with the latest developments in Java and related technologies. Document code and processes to support knowledge sharing within the team....£350 per day
...Senior Power Platform Developer, Global (UK and Europe) Engagement: Day rate contract. Minimum 5 years. Start: November 2026 Location: Hybrid... ...plugins and custom connectors. Build Azure Functions and APIs that extend apps, flows and Copilot Studio agents. Review code and...Daily payHybrid workingWork visa
