1 to 25 of 294 API Design Jobs in London

with AI SDLC. We are currently seeking a high caliber professional to join our team as Solution Architect. Principle Responsibilities Work as part of API Design and analysis team with responsibility for API Design, aligned to value streams. The solution architect is responsible for analysis … existing system and defining the API contract. Prepare Design Document and presentation for the stakeholders Work with Global Enterprise/Solution Architects to review end-to-end technical design. Review/Ensure the technical design is technically coherent and future proof and compliance with technology standards ...

pivotal role in shaping our technical domain with the goal of powering all Expedia Group’s brands and product lines.In this role, you will:Design, build, and evolve robust, scalable, and secure backend services and applications, including clear low-level and high-level designs, APIs, data models, and explicit … facing pricing and offers experiences across Expedia Group brands.Lead end‐to‐end implementation of complex features and systems within the Offers Domain, from technical design and coding through testing, deployment, monitoring, and ongoing operational support, ensuring simple, accurate, and transparent pricing throughout the shopping and booking journey.Partner closely with ...

role in shaping our technical domain with the goal of powering all Expedia Group’s brands and product lines. In this role, you will: Design, build, and evolve robust, scalable, and secure backend services and applications, including clear low-level and high-level designs, APIs, data models, and explicit … pricing and offers experiences across Expedia Group brands. Lead end-to-end implementation of complex features and systems within the Offers Domain, from technical design and coding through testing, deployment, monitoring, and ongoing operational support, ensuring simple, accurate, and transparent pricing throughout the shopping and booking journey. Partner closely ...

service-level APIs. This is not a traditional infrastructure operations role. You will write production-quality code every day, designing and building the API fabric that connects our Configuration Management Database (CMDB) to every layer of the infrastructure stack: physical sites, datacenter fabric, network, compute, storage, and cloud. This … role is central to our multi-year strategy to eliminate 90% of manual infrastructure operations by 2027 through self-service, API-driven automation at every exposed layer of the stack. You will be the technical owner of the interaction model between our source of truth (CMDB) and the systems ...

believe in the imaginative application of art and science to create beautiful ideas, products and services. With an entrepreneurial and collaborative approach, we design and build adaptive digital products, services and experiences that capture the imagination and deliver impressive returns for our clients. We are looking for a senior … technical leadership, architecture and team guidance. You will lead the technical direction of complex client programmes across MACH architectures and production Generative AI; spanning Design to Code workflows, solution design and API contracts through to cloud infrastructure, deployment and ongoing operation. You will own architecture decisions, write ...

guide users and streamline complex workflows.ð Visualize Complex Data: Build and optimize advanced data visualizations like charts, maps, and real-time dashboards.ð Shape the Design System: Influence and maintain our proprietary design system to deliver consistent, high-performance UIs.ð Tackle Real Challenges: Solve complex problems involving large datasets … working on production systems.- Proven expertise in building scalable UIs with React and TypeScript.- A track record of collaborating with backend engineers to shape API design and optimize data consumption.- Experience working with design systems, performance optimization, and handling large datasets.- Strong communication skills and a problem ...

capability is responsible for advancing Insulet’s AI enablement foundation through MuleSoft Anypoint Platform, MuleSoft AI Gateway, Model Context Protocol (MCP), MuleSoft Agent Fabric, API-led connectivity, event-driven integration, and secure agent-to-system orchestration. The role will help transform existing enterprise APIs and integrations into trusted, reusable … portfolio, lead a globally distributed MuleSoft engineering team, and partner with Enterprise Architecture, AI/ML, Salesforce, Data, Security, Product, and Platform teams to design and operate the integration layer for the agentic enterprise in a highly regulated healthcare environment. Global AI Enablement & Collaboration Model Serve as a primary ...

capability is responsible for advancing Insulet’s AI enablement foundation through MuleSoft Anypoint Platform, MuleSoft AI Gateway, Model Context Protocol (MCP), MuleSoft Agent Fabric, API-led connectivity, event-driven integration, and secure agent-to-system orchestration. The role will help transform existing enterprise APIs and integrations into trusted, reusable … portfolio, lead a globally distributed MuleSoft engineering team, and partner with Enterprise Architecture, AI/ML, Salesforce, Data, Security, Product, and Platform teams to design and operate the integration layer for the agentic enterprise in a highly regulated healthcare environment. Global AI Enablement & Collaboration Model Serve as a primary ...

that defines your career! Full-Stack Software Engineer, Model Development PlatformAs a Full-Stack Software Engineer within Wayve’s Model Development Platform, you will design, build, and operate the applications and services that support the development and testing of our autonomous driving models. These systems help researchers and engineers … production support.This is a hands-on engineering role with meaningful technical leadership responsibilities. You will influence technical decisions within the team, establish effective design patterns, contribute to architectural direction, and help engineers make sound technical choices. You will mentor less-experienced engineers through design discussions, code reviews, pairing ...

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 ...

govern the architecture of the Digital Backbone – the foundational layer that connects systems, data, and services across the enterprise – while driving adoption of API-first principles, integration best practices, and enterprise-wide governance.The Digital Backbone is Howden Group's foundational technology and integration layer, designed to eliminate fragmented systems … DesignDefine, own, and communicate the enterprise architecture of the Digital Backbone, establishing it as the strategic integration platform across Howden Group.Architect and lead the design, development, and deployment of APIs and integrations, ensuring alignment with enterprise-wide standards and the Digital Backbone's strategic goals.Drive adoption of API ...

. 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 ...

Terra — from upstream data suppliers (wearables, health apps, sensors) into our unified schema, and out to downstream developers and AI consumers via our REST API, Streaming API, and webhooks. This is not a maintenance role. You will build new data connectors, scale real-time streaming pipelines, harden … authentication layer, and design the systems that handle millions of API calls per day. You will work across the entire stack — from low-level data ingestion to developer-facing API surfaces. You will ship fast, iterate through feedback loops, and think in first principles. ...

across Expedia’s white‐label and partner platforms. We’re building the next generation of video ad infrastructure, AI‐powered tooling, and Rapid API integrations to deliver smarter, more engaging ad experiences. In this role, you will: Design, implement, and evolve high‐quality software services and components, including … system design, low‐level design, API design, and data modeling to support scalable, reliable products. Lead end‐to‐end delivery of complex technical features across services or domains, including requirements clarification, solution design, development, testing, deployment, and ongoing operational support. Collaborate closely with product, architecture ...

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 … 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 ...

across Expedia’s white-label and partner platforms. We’re building the next generation of video ad infrastructure, AI-powered tooling, and Rapid API integrations to deliver smarter, more engaging ad experiences.In this role, you will:Design, implement, and evolve high-quality software services and components, including system … design, low-level design, API design, and data modeling to support scalable, reliable products.Lead end-to-end delivery of complex technical features across services or domains, including requirements clarification, solution design, development, testing, deployment, and ongoing operational support.Collaborate closely with product, architecture, and cross-functional ...

across Expedia’s white-label and partner platforms. We’re building the next generation of video ad infrastructure, AI-powered tooling, and Rapid API integrations to deliver smarter, more engaging ad experiences. In this role, you will: Design, implement, and evolve high-quality software services and components, including … system design, low-level design, API design, and data modeling to support scalable, reliable products. Lead end-to-end delivery of complex technical features across services or domains, including requirements clarification, solution design, development, testing, deployment, and ongoing operational support. Collaborate closely with product, architecture ...

cloud, data, AI and emerging technologies.We are looking for a Technical Lead – Java & Web Platforms to join our growing xTech team and lead the design and delivery of complex, business-critical digital platforms for major UK and international clients.The roleThis is a hands-on technical leadership role combining software … engineering, solution design, team leadership and client engagement.You will provide technical direction to multidisciplinary engineering teams across back-end, front-end, DevOps and QA, while remaining close to the code and day-to-day delivery.Working across the full software delivery lifecycle, you will help shape scalable, secure and maintainable ...

data, AI and emerging technologies. We are looking for a Technical Lead – Java & Web Platforms to join our growing xTech team and lead the design and delivery of complex, business-critical digital platforms for major UK and international clients. The roleThis is a hands-on technical leadership role combining … software engineering, solution design, team leadership and client engagement. You will provide technical direction to multidisciplinary engineering teams across back-end, front-end, DevOps and QA, while remaining close to the code and day-to-day delivery. Working across the full software delivery lifecycle, you will help shape scalable ...

maintain high standards of engineering quality. How you will make an impact Build and maintain reliable JVM-based services using Kotlin or modern Java. Design and develop APIs and integrations following industry standards. Contribute to API design standards and documentation. Deliver complete end-to-end features … Understanding the difference between relational, NoSQL and other persistence technologies. Experience building shared platforms, common services or greenfield technical foundations. Building APIs adhering to design principles such as RESTful API design Building observable systems Experience in regulated or financial-services environments. Exposure to payments, transaction processing ...

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 ...

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 ...

believe in the imaginative application of art and science to create beautiful ideas, products and services. With an entrepreneurial and collaborative approach, we design and build adaptive digital products, services and experiences that capture the imagination and deliver impressive returns for our clients.We are looking for a senior, architecture … technical leadership, architecture and team guidance.You will lead the technical direction of complex client programmes across MACH architectures and production Generative AI; spanning Design to Code workflows, solution design and API contracts through to cloud infrastructure, deployment and ongoing operation. You will own architecture decisions, write ...

Data, AI, and real-time decision-making we turn energy complexity into growth opportunities for our partners. By combining predictive algorithms with human-centred design, the company makes clean energy dependable and affordable. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation … services. You move faster than a traditional sprint by using AI to handle the "heavy lifting" of boilerplate and logic generation. Technical Asset Development: Design, build, and maintain reusable mock services in Node.js/TypeScript. You’ll implement contract-first APIs (REST/GraphQL), manage AWS deployments (API ...