1 to 25 of 138 API Design Jobs

GCP Solution Architect

Hiring Organisation
83zero Ltd
Location
Edinburgh, City of Edinburgh, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum
Location: Edinburgh Salary: £80,000 - £100,000 Job Type: Permanent The Role We are looking for an experienced Solution Architect - API & GCP to join a growing technology team in Edinburgh. You will play a key role in shaping the architecture and strategic evolution of an API Marketplace platform … working closely with product, engineering and business stakeholders. This is a great opportunity for an architect with strong API, cloud-native and Google Cloud Platform (GCP) experience to have a genuine influence on enterprise technology direction. Key Responsibilities Own and drive architectural decisions across the API Marketplace platform. ...

Technical Product Manager

Hiring Organisation
HUKM Development
Location
Buckinghamshire, England, United Kingdom
Probation: 6 months About the role As a Technical Product Manager at HUKM, you will lead the development and delivery of backend and API-driven products. You will manage development pods, translate business requirements into technical solutions, and drive execution through agile delivery. This is a hands-on technical … development pods of 15 to 20 engineers, ensuring effective collaboration and delivery Define product roadmaps, prioritise features, and maintain product backlogs for backend and API initiatives Design and document API specifications, data models, and system architecture alongside engineering teams Run sprint planning, daily standups, sprint reviews ...

Senior Full Stack Engineer - Vialto Rewards -

Hiring Organisation
Vialto Partners
Location
London, UK
Employment Type
Full-time
news in the industry. You can also follow us on Linkedin and Instagram. Role Summary Vialto is hiring a Senior Full Stack Engineer to design, build, and operate secure, scalable products that power our Compensation Collection, Shadow Payroll, and Equity offerings for the world's most complex multinational employers. … Shadow Payroll, and Equity products using Next.js, React, and TypeScript with a focus on performance, reliability, and clarity for tax, payroll, and mobility operators. Design and implement backend services and APIs using C#, .NET, and WebAPI to support compensation data ingestion, cross-border payroll calculations, equity event processing ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day 500/day (Outside IR35)
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto the strategic integration … platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library: design ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Limited
Location
Westminster, Greater London, UK
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto the strategic integration … platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library: design ...

Principal Engineer

Hiring Organisation
9fin
Location
London, UK
Employment Type
Full-time
them.Bring architectural coherence to decisions made within individual domainsIdentify technical risks and compounding complexity before they become incidentsSet standards for engineering quality — system design, observability, reliability, API design — that every team builds toBe the senior technical voice in cross-team planning, roadmap discussions, and major build vs. … intensive, fast-moving engineering org — and has the range to show for itCan credibly walk into a conversation about data pipeline architecture, RAG evaluation, API design, or system scalability — and add something useful in all of themOwns problems, not just opinions. You're not here to review ...

Principal Software Engineer

Hiring Organisation
Epicor Software Corporation
Location
Bracknell, Berkshire, UK
Employment Type
Full-time
transforms innovative AI concepts into enterprise-grade products trusted by enterprise customers.This is a hands-on engineering role, not a management position. You will design and build, set the technical bar for production quality, and provide the architectural judgement needed to take AI-driven products from promising prototype … designing for the incident nobody planned. This matters to us more than any specific framework.Distributed-systems fluency: service boundaries, transactional thinking, multi-tenant design, API design and versioning.Strong architectural communication - able to explain, document, and defend design decisions across teams, and to review others' designs constructively.Pragmatism ...

Integration Lead

Hiring Organisation
StepChange Debt Charity
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Ready to shape the future of our integration capability and become the technical authority behind enterprise-wide connectivity? Want to lead the design and delivery of scalable, secure, cloud-first integrations that power real business impact? Excited by the challenge of modernising legacy systems while driving best-practice engineering … architecture evolution and collaborate across teams to enable seamless, future-ready connectivity. What will you be doing? As a technical authority in integration and API design, youll set the standards that shape how our systems connectdefining integration patterns, ensuring architectural consistency and driving secure, scalable solutions across ...

Software Development Engineer III

Hiring Organisation
Expedia
Location
London, UK
Employment Type
Full-time
play a pivotal role in shaping our technical domain to power all Expedia Group's brands and product lines.In this role, you will:Design and implement scalable, robust, and maintainable systems and services across multiple domains, with a focus on reliability and performance.Develop complex application logic, APIs, and data … experience.5+ years of relevant professional experience.Strong software engineering fundamentals—data structures, and algorithms in Java or Kotlin, with familiarity across the JVM stack, system design, and distributed systems—and can understand highly complex systems, design moderately complex services, and guide integrations across teams within the business unit.Building ...

Senior Software Engineer, Embedded UI

Hiring Organisation
Roku
Location
Manchester, UK
Employment Type
Full-time
feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation … inventing the world of streaming media.What is the role As a Senior Software Engineer on the OS UI/SDK team, you will design, develop, and deliver engaging platform features — including screensavers, static and dynamic wallpapers, trivia, featured experiences, and AI-driven content initiatives — that reach millions of Roku ...

Senior Software Engineer, Embedded UI

Hiring Organisation
Roku
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation … inventing the world of streaming media.What is the role As a Senior Software Engineer on the OS UI/SDK team, you will design, develop, and deliver engaging platform features — including screensavers, static and dynamic wallpapers, trivia, featured experiences, and AI-driven content initiatives — that reach millions of Roku ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Euston, Norfolk, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 - 475 Daily
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You ll Be Doing ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
London, Euston, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You’ll Be Doing ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Birmingham, Solihull, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure … API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You’ll Be Doing ...

Software Development Engineer II

Hiring Organisation
Expedia
Location
London, UK
Employment Type
Full-time
great experience to delight our customers. Our goal is to enhance every traveler's experience and make it better!In this role, you will:Design, develop, and maintain high-throughput, low-latency distributed backend services that deliver efficient, optimal pricing solutions at scale.Implement robust caching mechanisms to enhance application … performance, reduce latency, and optimize resource utilization.Participate in system design, API design, and data modeling for scalable, reliable microservices.Contribute to technical documentation, detailed code reviews, and architecture discussions to ensure high-quality solutions.Analyze complex problems, break them down into manageable milestones, and collaborate with cross-functional teams ...

Product Manager - Global Card Issuing Platform (BaaS)

Hiring Organisation
WorldFirst
Location
London, UK
Employment Type
Full-time
grade infrastructure that allows clients to launch card programs anywhere in the world through a single integration.You will be responsible for a unified Global API and SDK suite that abstracts the complexity of regional payment networks. Whether a client is launching in Europe, North America, or APAC, your product … will provide a consistent, white-label experience. You will drive both the technical "how" (API/SDK design) and the strategic "where" (global expansion and regional issuing setups).What you'll do:Unified Global API Strategy: Design and maintain a single, polymorphic API architecture that ...

Director Data & Analytics API Experience - Data Services

Hiring Organisation
CME- Group
Location
Belfast, UK
Employment Type
Full-time
Director Data & Analytics API Experience - Data ServicesBackground:CME Group runs some of the world's largest and most important trading venues, including derivatives exchanges, FX/FI platforms. The trading participants include leading investment banks, hedge funds, proprietary trading firms, investment managers, and retail traders, as well as additional … stakeholders such as independent software vendors (ISVs) and data redistributors. To support our unique data and analytics products, we are now building a unified API-first distribution framework, simplifying consumption and value extraction.The Role:We are seeking a key stakeholder for the CMEG External Data-Analytics (DA) APIs ...

Tech Practice Principal - Backend Lead

Hiring Organisation
Hackajob Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Tech Practice Principal - Backend Lead Location: Hybrid: Client Site, AND Digital office, Remote. Proximity to Reading/Thames Valley is key Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud AND Introduction At AND, we accelerate the development of digital capabilities. In practice, that means helping ambitious leaders … oversee support for these backend systems. Engineering Culture: Set the "gold standard" for backend engineering routines. Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. Team Leadership & Delivery Management Delivery Accountability: Operates in "Project Mode," taking full accountability ...

Product Lead, EMEA Payments

Hiring Organisation
Stripe
Location
London, UK
Employment Type
Full-time
behind critical payment flows across EMEA.ResponsibilitiesDefine a multi-year vision for EMEA Payments that anticipates future merchant and ecosystem scale and complexityLead Engineering and Design through every phase of the product lifecycle, from 0-to-1 development to General AvailabilityEnforce rigorous standards for product quality, API design … related product roleA track record of shipping technical B2B2C products at a high velocityAn obsession with product quality in all its forms—from API design to dashboard UX and documentationExisting knowledge of the payments landscape or a demonstrated ability to learn complex domains quicklyStrong written and verbal communication ...

Senior Java Developer

Hiring Organisation
scrumconnect ltd
Location
Swansea, West Glamorgan, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
seeking a highly skilled and experienced Java Developer to lead the design, development, and delivery of scalable, secure, and high-performance enterprise applications. The ideal candidate will possess deep expertise in Java and Spring Boot, strong architectural knowledge, and proven experience leading development teams in delivering large-scale digital … developers, contribute to strategic technology decisions, and collaborate closely with cross-functional stakeholders to ensure successful project delivery. Key Responsibilities Technical Leadership Lead the design, development, and maintenance of enterprise-grade Back End applications using Java (8/11/17+) and Spring Boot. Define and drive technical architecture ...

Java Developer

Hiring Organisation
scrumconnect ltd
Location
Swansea, West Glamorgan, United Kingdom
Employment Type
Permanent
Salary
GBP 35,000 - 45,000 Annual
lives of over 40 million UK citizens. We deliver impactful technology solutions across UK government departments, working at the forefront of user-centred design, agile delivery, and scalable digital services that genuinely make a difference. Visa sponsorship available for eligible candidates Strong focus on work-life balance with … Swansea, South Wales - three days per week on-site Role Overview We are seeking a highly skilled and experienced Java Developer to lead the design, development, and delivery of scalable, secure, and high-performance enterprise applications. The ideal candidate will possess deep expertise in Java and Spring Boot, strong ...

Staff Software Engineer

Hiring Organisation
BP
Location
London, UK
Employment Type
Full-time
value as well as achieving our carbon net-zero goals.As an engineer on this project, you will collaborate with Product Managers and partners to design, develop and maintain enterprise scale software systems and tools.As part of a global team working on a global product, you will lead … distributed production systems.Passionate about mentoring and coaching engineers across both technical and soft skills.Product-centric mentality with the ability to understand business needs and design scalable, resilient systems and solutions.Strong empathy and curiosity to create exceptional user experiences.Self-starter with excellent communication skills, adept at handling ambiguity, navigating uncertainty ...

Staff Product Manager - API Connectivity

Hiring Organisation
ebury
Location
London, UK
Employment Type
Full-time
operate globally, get in touch - we'd love to discuss how Ebury can accelerate your career so you can shape the future.Staff Product Manager - API ConnectivityProduct Ebury London Office - Hybrid: 4 days in the office, 1 day working from home per weekWe are looking for an experienced Product Manager … API Connectivity with ERP and accounting platforms. This role will lead the strategy, delivery, and evolution of integrations with systems such as Sage, QuickBooks, and ERP aggregators (e.g. Codat, Merge, Apideck).You will be responsible for building scalable, high-quality integrations that power financial workflows for our partners ...

Senior Java Developer

Hiring Organisation
CODEVERSE LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
experienced Senior Java/Python Engineer to join a high-performing Agile engineering team delivering secure, highly available and scalable microservices and API platforms. You will be hands-on with modern engineering technologies, working across microservices, APIs, Kafka, cloud databases, containers and observability, while also providing technical leadership … mentoring junior engineers. Key Responsibilities Design and develop scalable Java/Python microservices and REST APIs. Build and operate event-driven solutions using Apache Kafka . Design and optimise AWS Aurora PostgreSQL databases and data platforms. Deploy and support applications using Docker and Kubernetes . Develop API ...

Java API Developer, Officer

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
Role Summary :We are seeking a Java API Developer to join our Digital Asset development team. This is a hands-on software engineering role responsible for designing, developing, testing, and supporting RESTful APIs and backend services in a financial services environment. The role contributes to building reliable, secure … will work closely with cross-functional teams to build robust, scalable, and secure digital asset products that meet our business and technical requirements.Role Description :Design, develop, and maintain Java-based backend services and REST APIs that support financial services workflows and data use cases.Implement APIs in line with internal ...