26 to 50 of 571 API Design Jobs in the UK

Gradle, Java, Kafka, REST APIs, Spring Boot We’re looking for an experienced Backend Engineer to design and build robust, scalable microservices. You’ll work across the full backend stack — from API design through to production-grade integration testing — using modern Java and Spring technologies. Mobility: Comfortable … Spring Boot 3 Proven experience building and maintaining microservices architectures Practical experience with Kafka (producers, consumers, event-driven patterns) Strong understanding of REST API design best practices Proficiency with Gradle for build management Familiarity with MapStruct and Feign Working knowledge of domain-driven design (DDD) patterns ...

Gradle, Java, Kafka, REST APIs, Spring Boot We’re looking for an experienced Backend Engineer to design and build robust, scalable microservices. You’ll work across the full backend stack — from API design through to production‐grade integration testing — using modern Java and Spring technologies. Requirements Strong … Spring Boot 3 Proven experience building and maintaining microservices architectures Practical experience with Kafka (producers, consumers, event‐driven patterns) Strong understanding of REST API design best practices Proficiency with Gradle for build management Familiarity with MapStruct and Feign Working knowledge of domain‐driven design (DDD) patterns ...

solutions that empower both our customers and our developers. Job Summary: As a Java Software Engineer in the Payments Developer Portal team, you will design, develop, and maintain backend services that power our public-facing web portal. You will work closely with product partners and technical teams to deliver … respect while advancing modern engineering practices. Job Responsibilities: Collaborate with technical teams, product partners, and stakeholders to deliver customer-facing capabilities and internal enablement Design, develop, and maintain secure, high-quality production Java services (APIs and supporting components), reviewing and debugging code Contribute to decisions influencing product design ...

Software Developer - API & Java Microservices Job Type: Permanent, Full Time The Opportunity We're looking for an experienced Software Developer/Software Development Engineer with strong Java and Spring Boot experience to join a growing Digital Technology team within a well-established UK organisation. This is an exciting opportunity … based technology environment. You'll be part of a collaborative Agile squad, working alongside Tech Leads, Architects, Analysts, Scrum Masters and Product Owners to design, build, test and deliver high-quality software that provides real value to customers. What You'll Be Doing As a Software Developer - API ...

Gradle, Java, Kafka, REST APIs, Spring Boot We’re looking for an experienced Backend Engineer to design and build robust, scalable microservices. You’ll work across the full backend stack — from API design through to production-grade integration testing — using modern Java and Spring technologies. Requirements Strong … Spring Boot 3 Proven experience building and maintaining microservices architectures Practical experience with Kafka (producers, consumers, event-driven patterns) Strong understanding of REST API design best practices Proficiency with Gradle for build management Familiarity with MapStruct and Feign Working knowledge of domain-driven design (DDD) patterns ...

transact), we are seeking a Principal Technical Architect. Serving as the senior technical authority on our AWS and cloud engagements, you will own the design and quality of robust, scalable applications. Key Responsibilities Architect Agentic Solutions: Design enterprise cloud applications, specializing in agentic AI platform components (orchestration, memory … doing Technical Leadership & Governance: Act as the account's senior authority on complex cloud architectures (esp. AWS serverless). Establish technical governance, design standards, and manage risk, non-functional requirements (NFRs), and technical debt. Agentic AI & Commerce Innovation: Design AWS-based agentic AI platforms (orchestration, RAG, memory, guardrails ...

days onsite is mandatory) Rate: £400 - £475 Role Summary We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures. This role focuses on building secure, scalable identity and access workflows across Google … APIs, Pub/Sub pipelines, and cloud-native applications. You will collaborate closely with tech leads, Cloud Security, DevOps, and Application Engineering teams to design and implement robust IAM automation, identity lifecycle workflows, and secure service integrations that support enterprise-level cloud and Identity operations. Key Responsibilities Identity Orchestration ...

connectivity across the clients core systems. Key Responsibilities: Own and evolve integration architecture aligned with enterprise standards Define and govern integration patterns across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/… Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts, ADRs) Guide teams on best practices, API governance, and event design Engage stakeholders and align cross-team integration efforts Primary Skills: Event-driven architecture and messaging systems (NATS, pub/sub, async patterns) API ...

connectivity across the clients core systems. Key Responsibilities: Own and evolve integration architecture aligned with enterprise standards Define and govern integration patterns across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/… Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts, ADRs) Guide teams on best practices, API governance, and event design Engage stakeholders and align cross-team integration efforts Primary Skills: Event-driven architecture and messaging systems (NATS, pub/sub, async patterns) API ...

MUST BE ELIGIBLE FOR BPSS MUST BE PAYE THROUGH UMBRELLA We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures. This role focuses on building secure, scalable identity and access workflows across … APIs, Pub/Sub pipelines, and cloud-native applications. You will collaborate closely with tech leads, Cloud Security, DevOps, and Application Engineering teams to design and implement robust IAM automation, identity lifecycle workflows, and secure service integrations that support enterprise-level cloud and Identity operations. Key Responsibilities 1. Identity ...

MUST BE ELIGIBLE FOR BPSS MUST BE PAYE THROUGH UMBRELLA We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures. This role focuses on building secure, scalable identity and access workflows across … APIs, Pub/Sub pipelines, and cloud-native applications. You will collaborate closely with tech leads, Cloud Security, DevOps, and Application Engineering teams to design and implement robust IAM automation, identity lifecycle workflows, and secure service integrations that support enterprise-level cloud and Identity operations. Key Responsibilities 1. Identity ...

Work with the Solution Architect of World-Check One – Risk Engineering Develop critical financial services including World-Check One, Screening and Due Diligence Design software solutions from the ground up and make high-level architectural decisions Direct engineering teams in building final products Build logical, physical, implementation and process … solution architecture designs Design cloud infrastructure and detailed application architecture Optimise cloud solution costs through waste reduction, automated cost management and autoscaling Support DevOps teams with CI/CD automation Support application development teams with governance, privacy gates, compliance and risk analysis Lead production issue root-cause analysis ...

experienced AI Architect who enjoys solving complex technical problems while staying close to delivery. This is a genuinely hands on role where you will design enterprise AI solutions, partner with senior stakeholders across the business and work alongside engineering teams to bring modern AI capabilities into production. … role where you can combine deep technical expertise with meaningful business impact, we would love to hear from you. ----------------------------------------- Key Responsibilities Architect Agentic Solutions: Design enterprise cloud applications, specializing in agentic AI platform components (orchestration, memory, tool integration, identity, guardrails, observability) and emerging Agentic Commerce. Lead Clients & Drive Growth ...

hands-on technical leadership position in the making. You will work across product management, engineering, and client-facing discussions to evolve the design of a distributed ledger-based post-trade platform operating within regulated financial services. You will initially contribute as a senior engineer while progressively taking ownership … system-level architecture, solution design, and technical direction. This role is ideal for someone who wants to: Move from senior engineer to architect; Work on real financial market infrastructure problems; Combine deep technical thinking with business context; Shape a product at an early stage. Why join ...

transact), we are seeking a Principal Technical Architect. Serving as the senior technical authority on our AWS and cloud engagements, you will own the design and quality of robust, scalable applications.In this outward-facing, energetic leadership role, you will architect enterprise-grade cloud applications with a strong focus … doingTechnical Leadership & Governance: Act as the account's senior authority on complex cloud architectures (esp. AWS serverless). Establish technical governance, design standards, and manage risk, non-functional requirements (NFRs), and technical debt.Agentic AI & Commerce Innovation: Design AWS-based agentic AI platforms (orchestration, RAG, memory, guardrails ...

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 … 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 ...

Come join the Risk Intelligence Content Curation and Distribution team as an Application Architect, and help drive application design, as we support our World-Check customers in protecting against sanctions evasion, money laundering, human trafficking, terrorisim and more! Role summary: The Application Architect plays a key technical role within … this role contributes to their the architecture and technical direction on the Risk Content Curation and Distribution PlatformThis role focuses on application‐level architecture, design quality, and technical guidance, working closely with Solution Architects, Product Owners, and engineering teams. You will help translate business and non‐functional requirements into ...

Come join the Risk Intelligence Content Curation and Distribution team as an Application Architect, and help drive application design, as we support our World-Check customers in protecting against sanctions evasion, money laundering, human trafficking, terrorisim and more! Role summary: The Application Architect plays a key technical role within … this role contributes to their the architecture and technical direction on the Risk Content Curation and Distribution PlatformThis role focuses on application‐level architecture, design quality, and technical guidance, working closely with Solution Architects, Product Owners, and engineering teams. You will help translate business and non‐functional requirements into ...

Full Stack Engineer to help build and evolve the services that support our customers and business. Working primarily within AWS serverless environments, you'll design and deliver scalable backend services, APIs and platform capabilities, while contributing across the full stack where required. You'll play a key role … team, you'll contribute to the adoption of modern cloud-native technologies, GraphQL architectures and AI-enabled development practices. What you'll be doing Design, develop and support scalable backend services and APIs. Build AWS serverless applications using modern engineering practices. Develop integrations with internal and external systems. Enhance ...

Full Stack Engineer to help build and evolve the services that support our customers and business. Working primarily within AWS serverless environments, you'll design and deliver scalable backend services, APIs and platform capabilities, while contributing across the full stack where required. You'll play a key role … team, you'll contribute to the adoption of modern cloud-native technologies, GraphQL architectures and AI-enabled development practices. What you'll be doing Design, develop and support scalable backend services and APIs. Build AWS serverless applications using modern engineering practices. Develop integrations with internal and external systems. Enhance ...

technical input, guidance and leadership to the team (including code quality, best practices, processes, some aspects of release management, etc.). Assist in the design and documenting of solutions meeting functional and non-functional requirements. Lead by example getting directly involved in the day-to-day delivery of work … bring Platform and controlplane engineering Practical experience designing and developing management and controlplane capabilities for lineofbusiness or SaaS applications, including stack/environment management, API design for platform services, and developer/operator UX. Experience working with or designing Azure stamp-based or scale‐unit architectures, including multi ...

customers in the dark. So, join us as a Senior AI Full Stack Engineer and find your superpower. This is a senior design role for someone who can operate across product design, AI-assisted delivery, strategic discovery and hands-on product development. The role is not limited … producing design artefacts or handing over designs to engineering. It is expected to work directly with product owners, engineers, data teams and senior stakeholders to turn ambiguous strategic intent into usable, valuable and deliverable product experiences. An immediate focus for the role is the Strategic Review platform: National Grid ...

DeveloperApply: London, United Kingdom: Full time: Posted 11 Days Ago: JR100464## Job Description:**Role Overview**We are seeking a Core Platform Developer to help design and build shared engineering foundations used across the firm. This role is focused on backend and platform capabilities that improve how internal teams build … patterns, and increase the reliability of internal systems. This person should be comfortable working across multiple areas of the stack, from service frameworks and API enablement to observability, governance, and developer workflows. This is a high-ownership role within a global, fast-moving engineering environment.**Key Responsibilities*** Design ...

Description: Role Overview We are seeking a Core Platform Developer to help design and build shared engineering foundations used across the firm. This role is focused on backend and platform capabilities that improve how internal teams build, integrate, deploy, and operate software. The ideal candidate is a strong software … patterns, and increase the reliability of internal systems. This person should be comfortable working across multiple areas of the stack, from service frameworks and API enablement to observability, governance, and developer workflows. This is a high-ownership role within a global, fast-moving engineering environment. Key Responsibilities Design ...

Build and maintain user interfaces for client-facing features, ensuring high-quality and performant UI delivery Collaborate with backend engineers and product managers to design, develop, and deliver new features while providing technical input on API design and data handling Implement and enhance AI-driven capabilities that … with complex workflows Develop advanced data visualizations, including charts, maps, and dashboards, that provide real-time interactive insights Contribute to and maintain the internal design system, including custom caching mechanisms and advanced state management solutions Balance new feature delivery with ongoing maintenance and performance optimization Identify and resolve issues ...