1 to 25 of 36 API Design Jobs in London

within our DNA. Invest in us andwellinvest in you!. Job Description We are looking for an experienced Integration Solutions Architect to lead the design, governance and modernisation of enterprise integration solutions across cloud-native, legacy and external partner environments. The role will have a strong focus on Microsoft … Azure and Azure API Management (APIM) , designing secure, scalable and resilient integration architectures. You will work closely with engineering, platform, DevOps and architecture teams to establish API standards, integration patterns, automated deployment approaches and secure connectivity across Azure environments. Key Responsibilities Lead the end-to-end architecture ...

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 … control plane engineering Practical experience designing and developing management and controlplane capabilities for line of business 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 ...

with a growth mindset. We value our team culture and work together from the office three times a week. In this role, you will: Design, build, and maintain robust full stack applications and scalable services across multiple domains, applying deep technical expertise and architectural skills. Lead … development process, including system design, API design, and data modelling, ensuring quality and maintainability of solutions. Collaborate across engineering, product, and business teams to define requirements, deliver impactful features, and drive technology strategy. Mentor and guide engineers, fostering best practices in coding, testing, and operational excellence within ...

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 ...

DescriptionRole Summary :We are seeking an experienced Java API Developer to join our Digital Asset development team. This is a hands‐on engineering role responsible for building and operating secure, resilient API services that power institutional digital asset capabilities—spanning digital custody, tokenization enablement, digital transfer agency … 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 backend services and REST APIs that support digital asset product flows (custody, tokenization, TA, digital cash/settlement) and integrate ...

drive high engineering velocity, this role offers an exceptional platform for technical leadership and impact.Key Responsibilities & Technical Leadership:Architectural Stewardship & Hands-On EngineeringArchitect, design, and deliver high-performance, resilient Java (21/25) and Spring Boot microservices powering core enterprise data ingestion, deduplication, and reconciliation engines.Lead the design … oversight across the full application stack, collaborating effectively with frontend engineers building modern React/TypeScript maintenance interfaces.Ensure seamless end-to-end integration, predictable API contracts, and consistent telemetry/monitoring across all tiers.Technical Profile & Qualifications:Required Technical Skills:7+ years of hands-on software engineering experience with deep ...

using Docker is desirable. Hands-on experience or academic exposure to Python for data science or AI/ML development. Basic understanding of RESTful API design principles. Familiar with model development workflows, including training, evaluation and basic tuning. Exposure to tools such as Azure ML, Prompt Flow … vector search, embeddings, or retrieval techniques is desirable. Assists with basic ML pipeline configuration under guidance. Ability to write clear technical documentation and maintain API specifications using Open API 3.0+ Basic understanding of System Design and Architecture Basic understanding of microservices architecture and distributed system design. Familiarity ...

Project description As a Senior Full Stack Java Engineer within the US Corporate Loans POD, you will design, develop, and deliver enterprise integration solutions connecting Loan IQ with upstream and downstream platforms. You will leverage modern cloud-native technologies, AI-assisted development tools, and Agentic AI practices to improve … building AI agents and intelligent engineering solutions that automate and enhance Software Development Lifecycle (SDLC) processes, improving developer productivity and accelerating delivery outcomes. Responsibilities Design and develop REST APIs, event-driven integrations, and messaging interfaces. Build and maintain integrations between Loan IQ and enterprise applications. Design and implement ...

tools.We actively embrace GenAI-assisted engineering (Devin, GitHub Copilot, Cursor) to automate boilerplate, accelerate unit testing, and achieve high engineering velocity.Key Responsibilities:Backend Microservices: Design, build, and maintain production-grade REST APIs and microservices using Java 21/25 and Spring Boot.Data Ingestion & Processing: Build resilient ETL and reconciliation … services that ingest, validate, and deduplicate complex monthly datasets from multiple upstream sources into a unified data model.Data Modeling & Storage: Design relational schemas (PostgreSQL/Oracle), optimize complex SQL queries, and implement transactional data integrity, staging layers, and immutable audit logs.Full Stack Collaboration (Bonus): Partner with or contribute ...

strategies that deliver secure, governed, and high-performing data platforms that create real business impact? About our Team The TIO Architecture Team is the design and architecture function of Elsevier's Technology Infrastructure and Operations organization and is responsible for architectural design and consultancy across a multitude … both AI developer tooling and end user GenAI technologies). About the Role This Solution Architect role is an exciting opportunity to lead the design and evolution of Elsevier's Operational Data Platform. You will work alongside an embedded engineering team to architect Snowflake-based data warehouse solutions ...

Bestway is modernising its application estate towards cloud-native architecture. We are looking for a hands-on Lead Application Architect to own application-level design, define our engineering standards, and introduce AI-assisted development practices across the team. You will sit between our Solution Architects, who define high-level … designs, and the development team, who deliver them. You will turn HLDs into well-documented, implementable designs (Low-Level Design) and make sure the code that results is consistent, secure and maintainable. About Bestway Bestway Group is a diversified multinational family owned business with annualised turnover in excess ...

Ireland providing specialist services to a wide range of blue-chip clients. The role We are seeking technical polyglots who enjoy both technical architectural design, hands-on coding and peer reviews, though also like the idea of the equally important social/client-facing aspect of the role. … development architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority (TDA) for delivery of technical stories and produce technical documentation artefacts to support the delivery process. Main Responsibilities Duties will include: The design ...

Danaher to understand their workflows, identify automation opportunities, and deliver solutions that legal teams trust and adopt. Architect and build AI-powered legal applications. Design end-to-end solutions for contract review, legal research, regulatory analysis, and compliance workflows using LLMs, retrieval-augmented generation (RAG), and agentic AI frameworks. … TypeScript) to deliver production applications using LLM APIs, orchestration frameworks (e.g., LangChain, LlamaIndex), and CI/CD pipelines — from prototype through deployment and monitoring. Design evaluation and quality framework. Build automated evaluation pipelines, test sets, and quality metrics specific to legal AI outputs, ensuring accuracy, consistency, and defensibility ...

Senior .Net Developer, C#/VB.Net, API, SQL, NW London to £85K A Back End Developer is required to join this established financial software house based in North London. They work with some of the leading brands in retail and media, offering financial management systems developed in house … required with expertise in Visual Basic .NET, C#, SQL Server, and SAP Business One integration. The ideal candidate should have strong skills in RESTful API development, database optimization, and Azure DevOps pipeline management. Knowledge of API security, CI/CD automation, and Swagger documentation is recommended. Responsibilities API ...

accordingly.The defining challenge of this role is composability: a marketing site that marketers, and increasingly AI agents, can build pages with, without breaking design, performance or SEO.What You'll DoBuild, scale and evolve our section library: the Astro components, Sanity schemas and design tokens that let us compose … marketing pages consistently and accessibly.Own the content model. Design schemas that resist misuse, so an editor, or an agent, can build a page that is correct by construction rather than correct by review.Take Figma component specs all the way to production: responsive across mobile, tablet and desktop, accessible ...

sector clients, helping to deliver our client services to the highest standard. The role will involve working with multiple business stakeholders, helping them to design business solutions which will then be implemented by the delivery teams. As a Junior Solution Architect, you will undertake structured analysis of technical issues … translating this analysis into designs that describe a solution. You will be consulted on design and can provide design patterns. You will identify the deeper issues that need fixing and look for opportunities to collaborate and reuse components, communicating with both technical and non-technical stakeholders. You will ...

cloud-native adoption, and AI-assisted development practices. Position As Lead Application Architect, you'll take ownership of application-level architecture and low-level design, helping to establish development standards and modern engineering practices across the organisation. Key responsibilities include: Producing component-level and code-level designs and detailed … Level Design (LLD) documentation Translating high-level architectural designs into clear implementation plans for development teams Creating and maintaining Architecture Decision Records (ADRs) and facilitating design reviews Defining and embedding engineering standards, coding principles, and security best practices Driving adoption of AI-assisted development tools across the software ...

native adoption, and AI-assisted development practices. The Role As Lead Application Architect, you'll take ownership of application-level architecture and low-level design, helping to establish development standards and modern engineering practices across the organisation. Key responsibilities include: Producing component-level and code-level designs and detailed … Level Design (LLD) documentation Translating high-level architectural designs into clear implementation plans for development teams Creating and maintaining Architecture Decision Records (ADRs) and facilitating design reviews Defining and embedding engineering standards, coding principles, and security best practices Driving adoption of AI-assisted development tools across the software ...

technical outcome of the project team. What you will doTechnical direction and qualitySet the team's technical direction and own architecture and design decisions across the composable stack. Select and justify the right headless CMS, front-end framework and hosting approach for each property, weighing editorial experience, performance, cost … lock-in. Design content models and component libraries that scale across multiple brands, sites, regions and locales. Uphold coding standards and best practices through consistent code review. Ensure developers test their own work before it reaches QA, with automated testing and CI/CD in place. Hold the team ...

works with top tier global financial institutions and major tech companies to offer our client products and services directly to their customers. Through our API, we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves our client by increasing … turnaround times. Designing and developing innovative new features that expand the functionality of our client's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of our client's platform. Diagnosing and resolving complex technical ...

works with top tier global financial institutions and major tech companies to offer our client products and services directly to their customers. Through our API, we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves our client by increasing … turnaround times. Designing and developing innovative new features that expand the functionality of our client's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of our client's platform. Diagnosing and resolving complex technical ...

core mission capabilities. You’ll work as part of empowered, autonomous DevOps teams with regular contact with end-users to flexibly and efficiently understand, design, develop, deploy and maintain applications and services on AWS. You’ll be encouraged to identify new ways of solving problems and get to work … help you with them AWS Certification at Associate level eg Solution Architect, Developer or DevOps Expertise in microservices and API design Docker, and container runtime platforms such as Kubernetes, EKS, ECS etc Strong understand of operational concepts on AWS, particularly monitoring and observability, FinOps Utilising CI/ ...

works with top tier global financial institutions and major tech companies to offer our client products and services directly to their customers. Through our API, we help partners to architect and build integrations to our world class-leading international finance products, which in turn improves our client by increasing … turnaround times. Designing and developing innovative new features that expand the functionality of our client's services and exposing these features through the public API, enabling seamless integration with partner systems and empowering them to leverage the full potential of our client's platform. Diagnosing and resolving complex technical ...

security etc). Working within a project management/agile delivery methodology Experience in technical ownership for a product or software solution, covering design, estimation, shaping and user story/requirement creation Documentation of solutions (e.g. architecture, configuration, release, support-handover Collaborate and liaise with other our client … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

Selective To Be Effective. Be Highly Aligned, Loosely Coupled. Disagree Transparently. Encourage Independent Decision-Making. Build Dream Teams. Who You Are: You'll design and build backend systems powering blockchain infrastructure and staking products across Galaxy — spanning Ethereum-based systems, staking infrastructure (native and liquid), and blockchain data systems … first development environment that increasingly leverages AI-assisted workflows. Typical time allocation: roughly 60% building systems and features, 20% code review and mentorship, 20% design, architecture, and product collaboration. What You'll Do: Build and own backend systemsDesign and build APIs, services, Ethereum data pipelines and indexers, staking ...