1 to 25 of 42 API Design Jobs in London

Role: API Platform Architect – Azure, Kubernetes, Terraform, API Management Location: London, UK (Hybrid) Employment type: Contract Key Responsibilities & Requirements 1. Architecture Leadership & Platform Ownership Own the architecture, design, standards, patterns, and roadmap of the enterprise API Platform across Azure, AKS, APIM, networking, security, observability, and DevOps … into scalable, secure, highly available platform architectures. Provide authoritative architectural guidance while remaining hands-on with implementation, debugging, optimisation, and reviews. Define and govern API standards, APIOps pipelines, lifecycle processes, platform SLAs/SLOs , and security enforcement. 2. Azure Cloud Expertise Extensive expert-level, hands-on experience with Azure ...

designed to enable long-term career progression. Role Summary Our client is seeking an experienced Technical Architect with strong expertise in integration architecture, systems design best practice, and API design. The role will take technical ownership of the organisations enterprise technology landscape. This is a pivotal position within … wide integration strategy, including the governance of integration patterns (such as synchronous APIs, event-driven architecture, asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams ...

designed to enable long-term career progression. Role Summary Our client is seeking an experienced Technical Architect with strong expertise in integration architecture, systems design best practice, and API design. The role will take technical ownership of the organisation’s enterprise technology landscape.This is a pivotal position within … wide integration strategy, including the governance of integration patterns (such as synchronous APIs, event-driven architecture, asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams ...

Project Manager, architects, clients & other stakeholders to implement MuleSoft APIs. This role will require knowledge of MuleSoft's Anypoint Studio & Anypoint Platform, which includes Design Center, Runtime Manager, API Manager, Exchange, etc. You must be capable of understanding business requirements, working with stakeholders & implementing complex integrations. Responsibilities: Designing … stakeholders to understand business requirements & translate them into integration solutions. Required Skills: Good experience of: Integration concepts & technologies. MuleSoft Anypoint Platform & components (Mule ESB, API Manager, CloudHub, etc.) Java programming & experience with other programming languages such as XML, JSON, SQL Agile software development methodologies. Cloud-based integration platforms such ...

technically proficient Data Analyst to join the IT Department within the Strategy & Architecture Team. This role will have a strong focus on API design and integrations between systems. This role is critical in enabling data-driven decision-making and ensuring seamless data exchange across internal systems and external … platforms. Key Responsibilities Analyse and interpret complex datasets to support IT operations and strategic initiatives. Design, document, and maintain APIs that facilitate secure and efficient integration of data between systems. Create data dictionaries that describe data structures, elements, their meanings, and relationships within a dataset or database. Create Business ...

Location: London, UK | 💼 Contract Role About the Role: We are seeking an experienced Cloud Native Developer with strong Python skills and AWS expertise to design, develop, and maintain scalable APIs and data solutions. Key Responsibilities Develop Cloud-Native APIs on AWS using Python and TDD . Design and maintain API contracts , ensuring version compatibility. Create low-level architecture diagrams and technical documentation. Implement secure coding practices and Python best practices. Required Skills 5+ years of experience with AWS API Gateway, Lambda, Glue using Python 3 (Java is a plus). Strong Python programming skills ...

building the new evolution of the financial infrastructure globally and you will be in the center of it. Your Primary Responsibilities: Architect Blockchain Solutions: Design end-to-end blockchain architectures for applications in digital assets, payments, settlement, identity, and smart contracts. Technology Strategy: Define blockchain adoption strategies aligned with … organizational goals, compliance standards, and market trends. Solution Design & Integration: Develop solution blueprints integrating blockchain with existing banking systems, APIs, cloud services, and fintech platforms. Technical Leadership: Collaborate with development teams to ensure architectural consistency, performance, and security across blockchain-based applications. Stakeholder Collaboration: Work closely with business leaders ...

seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. This is our right to win, and you will be the engineer responsible for building the bridge to it. You will be the Critical … build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. ? Architect and implement a carrier-agnostic, vendor-agnostic connector layer to consume RESTful APIs from a heterogeneous global landscape of telco partners and IMS vendors ...

seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. This is our right to win, and you will be the engineer responsible for building the bridge to it. You will be the Critical … build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. ? Architect and implement a carrier-agnostic, vendor-agnostic connector layer to consume RESTful APIs from a heterogeneous global landscape of telco partners and IMS vendors ...

will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Working in a team of Front-End engineers Writing clear & concise code Working closely with Back-End engineers Participate … architecture design code reviews API design with the Back-End engineers and other team members to establish more functional, cohesive code Create, maintain documentation while implementing the best coding practices standards Hands-on approach Participation in sprint rituals What you’ll need 6+ years experience developing large ...

Service (PaaS) environment. What Youll Be Doing: Own architecture and technical decisions across squads; accountable for how software is built and shipped. Design and develop distributed, scalable microservices (C# .NET Core or Node.js) and REST/JSON APIs. Build modern React + TypeScript UIs with component-driven design, advanced state management, and reusable frameworks. Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM) to deliver secure, event-driven systems. Embed testing-first practices (TDD/BDD, contract tests, Jest/RTL, Playwright/Cypress, xUnit/NUnit) to raise code quality. Implement ...

Service (PaaS) environment. What You’ll Be Doing: Own architecture and technical decisions across squads; accountable for how software is built and shipped. Design and develop distributed, scalable microservices (C# .NET Core or Node.js) and REST/JSON APIs. Build modern React + TypeScript UIs with component-driven design, advanced state management, and reusable frameworks. Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM) to deliver secure, event-driven systems. Embed testing-first practices (TDD/BDD, contract tests, Jest/RTL, Playwright/Cypress, xUnit/NUnit) to raise code quality. Implement ...

engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture, API design (REST, GraphQL) Experience with containerization (Docker, Kubernetes) and cloud-native development patterns DevOps & SRE Practices Experience implementing CI/CD pipelines ...

Hybrid Employer: Global Technology Consultancy Mandatory Skill: Google Kubernetes Engine (GKE) Role Purpose We are seeking a hands-on Cloud Platform Engineering Lead to design, build and operate secure, automated cloud platform capabilities. You will enable product teams to deliver API-first services rapidly and reliably, while balancing … deep technical work with coaching and engineering leadership. Key Responsibilities Design, build, and operate platform capabilities using Infrastructure-as-Code and modern CI/CD . Embed secure-by-design principles from architecture to runtime. Define and manage SLOs/SLIs ; drive observability, performance tuning, and automation. Promote ...

data-powered applications. We are seeking an experienced Senior Product Manager who will be accountable for designing and delivering the road map for molecule design products to support GSK Research and Development. This role will be pivotal in ensuring a cohesive enterprise level strategy towards molecule design solutions … best-in-in-class technology products to improve research productivity and ultimately deliver new medicines for our patients. As the Product Director for Molecule Design Products, you will be a visionary leader responsible for defining and executing the comprehensive product strategy for our entire portfolio of AI-powered solutions ...

client mortgage journey. We’re looking for an experienced engineer who combines deep .NET and Azure expertise with a collaborative, pragmatic mindset. You’ll design and implement the backend services, APIs, and integrations that power our lending ecosystem, while working closely with front-end, product, and infrastructure teams. This … engineering principles. You’ll be part of a team where architectural thinking, reliability, and craftsmanship are valued just as much as delivery speed. Responsibilities Design, build, and maintain backend services using C# (.NET 8+) and Azure Services. Develop and secure Modern Distributed Systems using Azure Container Apps, integrating with ...

GoCardless, Skyscanner). The Role: Technical Lead We are looking for a Technical Lead to join our high-calibre software engineering team. You will design, build, and maintain the core services and APIs that power our proprietary platform, with opportunities to contribute to both back-end and front … next evolution of our platform, designing architecture, managing engineers and shaping how we integrate AI and large language models into our products and workflows. Design, implement, and maintain scalable back-end services and APIs (primarily in Go, with Python for scripting and data). Mentor and manage team members ...

week Job Overview: Data Architect plays a key role in CLS’s architecture/technology division. Role requires broad knowledge in data architecture and design, with a focus on OLTP, Data Warehouse, Data Reporting, API capability and other database interfaces. This role involves collaborating with cross-functional teams … understand business requirements, providing technical leadership, and ensuring the design meet CLS architectural principles and security standards. Person should be strong technologist very aware of current developments in technology spectrum. Key Responsibilities : Author High Level Solution Design, Solutions Overview and Conceptual Architectures. Design and architect solutions based ...

practices, with hands-on experience in GitHub workflows. Demonstrated success in automating build, test, and deployment pipelines to enhance development efficiency. Proficient in API design and development, with a deep understanding of RESTful principles and authentication mechanisms. Capable of leading API strategy, development, and integration initiatives. Desired … diverse network domains including WAN, SD-WAN, LAN, and WLAN. Certifications such as CCNP/CCIE or equivalent are preferred. Extensive experience in algorithm design, analysis, and optimization, with a strong aptitude for enhancing performance and efficiency in software solutions. Regards Anita ...

layers, contributing to mission-critical digital services used across the UK and internationally. What You'll Do As a Full Stack Developer, you'll design and develop robust APIs and backend services using Node.js, while also contributing to frontend interfaces that deliver seamless user experiences. You'll work within … deliver resilient, maintainable solutions. Responsibilities Develop and maintain backend services and APIs using Node.js Build responsive, accessible frontend components using modern JavaScript frameworks Design event-driven systems using Kafka and SQS Implement infrastructure automation with Terraform Deploy and manage services in AWS (ECS, Cognito, SQS) Containerise applications using Docker ...

layers, contributing to mission-critical digital services used across the UK and internationally. What You'll Do As a Full Stack Developer, you'll design and develop robust APIs and backend services using Node.js, while also contributing to frontend interfaces that deliver seamless user experiences. You'll work within … deliver resilient, maintainable solutions. Responsibilities Develop and maintain backend services and APIs using Node.js Build responsive, accessible frontend components using modern JavaScript frameworks Design event-driven systems using Kafka and SQS Implement infrastructure automation with Terraform Deploy and manage services in AWS (ECS, Cognito, SQS) Containerise applications using Docker ...

Pension, Support Leave Salary: £70,000 - £75,000 Per Annum. Overview A key role within the Technology function, responsible for shaping solution design for a major business programme. You'll ensure solutions align with architectural standards, support integration and reporting platforms, and work closely with engineering teams and suppliers … deliver high-quality, scalable, and secure outcomes. Key Responsibilities Lead solution design across major programme workstreams, aligning with architectural vision and technical standards. Support cloud and data governance; define best practice for integration and reporting. Maintain and enforce standards for API design, integration patterns, data schemas (including ...

communication tools) with large language models — creating intelligent tools and insights that enhance the way teams operate. What You’ll Do Lead the design, architecture, and implementation of internal AI/ML systems for business intelligence. Build robust APIs, microservices, and data pipelines to power intelligent, data-driven tools. … other backend language (TypeScript or Java preferred). Proven experience with AWS , containerisation, and infrastructure as code (Terraform, Docker). Solid understanding of API design, data modelling, and microservice architecture. Excellent communication skills, with the ability to translate technical outcomes into business impact. Tech Environment Languages: Python, TypeScript ...

/17+) Deep Spring Boot & microservices experience Strong AWS skills (EC2, S3, Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive ...

best practices Preferred Education Bachelor's Degree Required Technical And Professional Expertise Solid experience of: Integration concepts & technologies. MuleSoft Anypoint Platform & components (Mule ESB API Manager CloudHub etc.) Java programming & experience with other programming languages such as XML JSON SQL Cloud-based integration platforms such as Amazon Web Services … Microsoft Azure. Knowledge of RESTful web services SOAP & other integration protocols Familiarity with API design & development best practices Strong problem-solving skills & ability to troubleshoot integration issues. Good communication & teamwork skills Strong understanding of Agile development methodologies & experience working in an Agile environment As an equal opportunities’ employer ...