1 to 25 of 428 API Design Jobs in London

Senior Backend Software Engineer (C# .NET Core) - Revolutionise Healthcare with REST API Design! Are you ready to make a monumental impact in the healthcare industry? We're looking for a Senior/Lead Backend Software Engineer with a strong focus on REST API design to join … Reporting To: Vice President of Software Development Your Mission: Collaborate with a cross-functional team of Frontend Developers, QA Engineers, and DevOps Engineers to design secure, scalable REST API endpoints that will revolutionise clinical research applications. This critical role requires extensive experience in REST API design. You … will also develop relational database schemas and work within a containerized microservice platform. Key Responsibilities: REST API Design & Implementation: Develop and maintain REST APIs using C# and .NET Core SDK. Database Mastery: Design relational database schemas, utilize Entity Framework (ORM), manage database migrations, and work with PostgreSQL. More ❯

are successful. Our company is built on extraordinary people; we aim to attract, inspire, develop and retain them. YLD is a software engineering and design consultancy; we create digital capabilities for our clients that last beyond our engagement. We have offices in London, Lisbon and Porto. About the role … with those around you. Your day-to-day responsibilities will look like this: Architecting, designing, building, and delivering highly-available, always-on, zero downtime API products and solutions; Collaborating with engineers, product owners, and other colleagues to seek exciting and results-oriented problems for delivering value; Writing clear, maintainable … AWS, GCP; An awareness of a variety of cloud architectures; A good understanding of consistency, reliability, scalability of systems without downtime; An understanding of design patterns and API design; Experience in system design, design patterns, API design and implementation of large scale distributed More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design? Interested … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

Job Description Lead Software Engineer – UK Remote | £80,000 to £85,000 | Hands-on Leadership in Scalable Systems w/API Design Are you a technical leader ready to guide a high-performing engineering team? Do you enjoy mentoring others while staying close to architecture and system design … is Great Lead a talented team delivering software that supports the installation, configuration and maintenance of distributed systems at scale Balance hands-on technical design with mentoring and team development Collaborate across product, cloud, QA and systems engineering to deliver robust solutions Contribute to technical strategy, system architecture and … Node.js development, or similar backend technologies Designing and deploying services in a modern cloud environment Working with databases (SQL or NoSQL) and scalable system design Agile delivery and team collaboration Building for maintainability, performance and clear documentation Experience or interest in the following would also be valuable: Managing or More ❯

product success. Core Technical Skills: Expert understanding of Laravel 8.x framework Strong proficiency in PHP 8.3+ Object-Oriented Programming (OOP) principles SOLID principles and design patterns Laravel Ecosystem Knowledge: Laravel Passport, Laravel Horizon, Laravel Dusk, Laravel Pint Database & ORM: MySQL/PostgreSQL, Eloquent ORM, database optimisation, migrations, and seeders … API Development: RESTful API design principles, API authentication and authorisation, JWT implementation, API documentation, API versioning, API testing Third-Party Integrations: Experience with various external services, understanding of webhooks and event handling Testing & Quality Assurance: PHPUnit for unit testing, mocking, and testing strategies More ❯

deliver impactful results for industries such as telecommunications, international government bodies, media, and technology. At Aqovia, we pride ourselves on our ability to architect, design, and develop cutting-edge solutions that drive transformative projects. Our world class team, with decades of experience at leading blue-chip companies, brings unmatched … our own products and/or client projects. As a Technical Business Analyst you will be working on our consulting projects, primarily designing RESTful API services. Here's what you'll do: Capture and curate business requirements and system documentation in JIRA/Confluence as user stories, API design, API enhancements Write estimate-able user stories, in JIRA, for developers including acceptance criteria Design RESTful web APIs for new and existing products in an API first context, in accordance with strategic guidance provided by the technical architect. Collaborate with engineering team members and More ❯

engaged with the open source community surrounding them – potentially, even to the level of contributing pull requests. In this role, you will Lead the design, development, and implementation of scalable APIs that meet the requirements of internal and external stakeholders. Ensure APIs are secure, efficient, and user-friendly, following … industry best practices and standards. Collaborate with cross-functional teams to identify API requirements and provide technical guidance. Integrate APIs with systems and platforms for seamless data exchange and enhanced system functionality. Produce well-engineered software, including appropriate automated test suites, technical documentation, and operational strategy. Diverse problem solver … QMS framework and CI/CD best practices and help to guide improvements to them that improve ways of working. Stay updated on emerging API technologies, trends, and best practices. Identify areas for improvement in API architecture, performance, and development. Mentor and guide junior engineers, supporting their growth. More ❯

wider technology architecture. 1. Data & Analytics (D&A) Infrastructure Management: Develop, maintain, and optimize the D&A architecture on AWS and Azure, including the design, deployment, and maintenance of the cloud based Pladis' data platform (PDP). Deliver an architecture that's globally scalable, agile, and supportive of digital … services through Data and Insights as a service via APIs. 2. Data Technology Capability Enhancement: Design and oversee the implementation of the PDP 2.0 Tech stack. Design and oversee data architecture to harmonise external, internal and Microsoft Graph data to deliver AI use cases Champion engineering standards and … trends to keep the company at the technological forefront. Lay down AI architectural standards, best practices, and guidelines for system design. 5. AI Solutions Design and Integration: Design AI solutions that are robust, scalable, and in line with business requirements. Integrate generalized AI models into business processes and More ❯

robust integration solutions that connect our critical trading systems and data flows. This role demands exceptional expertise in Java backend development, middleware technologies, and API design, combined with the ability to build high-performance, scalable, and resilient integration architectures. A good understanding of the commodity trading business is … Framework, Spring Boot, and JVM optimisation techniques for high-performance applications. Integration Architecture : Deep understanding of enterprise integration patterns, microservices architecture, and event-driven design principles. Messaging Systems Knowledge : Advanced knowledge of Kafka architecture, configuration, and optimisation, along with experience in other messaging systems like Tibco Enterprise Message Service. … API Development : Strong capabilities in designing and implementing RESTful APIs and GraphQL services with a focus on security, performance, and usability. Database Management : Proficiency with both relational databases (Oracle, PostgreSQL) and NoSQL solutions (MongoDB, Cassandra), including optimisation of data access patterns. Performance Engineering : Ability to design, implement, and More ❯

AR Engineer (Typescript API) page is loaded AR Engineer (Typescript API) Apply locations London, United Kingdom time type Full time posted on Posted 30+ Days Ago job requisition id R Snap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way … s possible in AR. You will: Create developer-facing APIs and tools that enable teams to build envelope-pushing experiences on Spectacles Assist with API design, development, and documentation Build automated release processes and infrastructure Knowledge, Skills & Abilities: Strong knowledge in Typescript Strong understanding of API design More ❯

are looking for a talented software .NET developer with extensive experience in .NET/C# to join our team. In this role, you’ll design, develop, and maintain our Definely products—from rich WPF-based desktop applications to resilient backend services. This is an opportunity to lead by example … mentor junior team members, and drive the technical excellence that defines our suite of products. Key Responsibilities Application Development Architect, design, and implement rich desktop applications using WPF. Leverage modern UI design principles and patterns (such as MVVM) to ensure clean, maintainable, and scalable code. Build and maintain … robust backend services, APIs, and libraries using .NET/C#. Technical Leadership & Collaboration Participate in design and code reviews to ensure high-quality, maintainable solutions. Collaborate closely with product managers, designers, and other engineers to align on requirements and deliver innovative features. Provide technical mentorship and guidance to less More ❯

for our customers. Key Responsibilities Maintain the overall Internal and External APIs Technology Strategy and external developer experience. Specify standards, patterns, platform technology (e.g., API Gateways), API governance, and target state for effective at-scale market-unit-wide API management capabilities. Drive technical alignment across the API design community, including Enterprise, Solution Architecture, and Engineering, which spans multiple Business Units (BUs). Educate senior leadership (technology and business) to raise understanding of API-led technology architecture. Analyze industry trends to leverage technology and methodology advances. Set KPIs and perform progress tracking and reporting against … target state and API controls. Participate in CTAO Leadership forums, conducting QA and Review of architecture deliverables and strategic API contracts. Serve as the single point of contact and escalation for architecture development across business units and with senior business and technology leadership. Communicate architecture direction and its More ❯

advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯

advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯

advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … strong focus on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Architecture & Design: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution … architecture for the product, ensuring scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party More ❯

interactions and ensuring that our solutions meet their business needs. The role will report into the Director of Product and Technology. Responsibilities Architecture & Solution Design: Oversee the technical architecture of our solutions, ensuring they meet performance, scalability, and security requirements. Design and develop scalable AWS architectures for API … services such as S3, OpenSearch, Redshift, Step Functions, Lambda, Glue, and Athena. Architect RESTful APIs, ensuring security, performance, and scalability. Optimise microservices architecture and API management strategies, leveraging tools such as KONG Gateway, Lambda, and EKS. Collaborate with DevOps teams to implement CI/CD pipelines, Infrastructure as Code … opportunities. Document solutions with specifications, estimates, and delivery timelines. Leadership & Mentorship: Provide technical leadership and mentoring to development teams, ensuring best practices in AWS, API design, and data architecture. Support the technical delivery team with troubleshooting and solution design. Line manage a Product Specialist, providing guidance on product More ❯

with empathy, fostering a culture rooted in trust and continuous growth. Take ownership of tasks from inception to completion, including understanding requirements, technical specifications, design, architecture, implementation, unit testing, and code management. Ensure adherence to enterprise standards and promote best practices aligned with organizational guidelines. Drive and execute complex … who excels in both independent work and team collaboration. Demonstrate strong written and verbal communication skills. Proficiency in developing microservices using Spring Boot and API design with REST. Experience in supporting production environments. Expertise in building applications with serverless frameworks and container management tools. Strong experience with AWS. … Automation, Python, R, REST/OData, AWS, Angular/React, Tomcat, JMS, SQL, Databricks, and Oracle. Proven experience in contributing to application architecture and design, with a strong understanding of software/enterprise integration design patterns and full-stack technology stacks. A quality-first mindset with a background More ❯

Social network you want to login/join with: Business Analyst (API/Integration), buckinghamshire col-narrow-left Client: InterQuest Group Location: buckinghamshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description: Business … within the insurance/financial services industry, working with highly transactional digital platforms *Experience in defining APIs and technical business processes *Detailed understanding of API design principles and exposure to associated technologies. *Working knowledge of API management tools, middleware (Mulesoft), and integration platforms *Have an appreciation and … understanding of API design standards and technologies (e.g. JSON, XML, Swagger, RAML). Hands-on coding experience is not required. *Ability to utilise API testing tools such as Postman and SOAPUI to ensure solution integrity *Ability to break down high-level business requirements into epics and user More ❯

concepts and achieve clarity of thought about what will ultimately be built. Participate in the definition of the flows and interfaces for all channels (API, UI, Files, SWIFT) between all assets - Joint solution design with the Technology teams in charge of developing each of the Cross-Border Services … establish priorities and work independently under pressure and with limited supervision - Experience and proficiency with cloud technologies (IaaS, PaaS, serverless technology, NoSQL databases), microservice design, near real-time, scalable fault tolerant platform design, API design, and distributed systems operations in a DevOps model - Experience with XP More ❯

Leverage tooling and automated testing to deliver quality software at speed. Contribute to the core architecture of our systems, improving database performance, data integrity, API design, and distributed system reliability. Your experience with software resilience will help us build systems that gracefully handle unexpected scenarios. Must-have Strong … with full-stack web development using TypeScript or other typed languages. Experience with modern frontend frameworks (React preferred). Experience with backend development and API design ( Node.js preferred). Understanding of distributed systems concepts - if you've built reliable microservices or dealt with API synchronization, you already … it. Ability to work effectively in cross-functional teams. Strong communication skills and customer empathy. At least one of these areas Product thinking and design mentality : Experience working closely with users, translating complex requirements into simple interfaces, and making scope decisions based on customer value. Deep distributed systems expertise More ❯

API Product Manager - Vice President At BNY, our culture empowers you to grow and succeed. As a leading global financial services company at the center of the world’s financial system we touch nearly 20% of the world’s investible assets. Every day around the globe, our 50,000+ … make money work for the world. This is what #LifeAtBNY is all about. We’re seeking a future team member for the role of API Payments Product Manager – Vice President I to join our International Payments team. This role is in London, Hybrid. As API Product Manager, you … will play a critical role in defining, developing, and managing the lifecycle of our API products across BNY’s International Payment offering. You will work closely with cross-functional teams, including engineering, design, sales, and customer support, to ensure our APIs meet market demands and drive business growth. More ❯

without people management responsibilities. Key Responsibilities: Build and maintain features using C#, ASP.NET Core, TypeScript, and Vue.js (or React/Angular) Own architecture and design of key systems and applications Develop scalable, secure, and maintainable solutions Collaborate closely with senior leadership on high-priority projects Mentor developers and promote … engineering excellence Rapidly adapt to changing requirements and business needs Requirements: Expert-level experience in full-stack development Proficient in SQL and API design Track record of architecting and delivering complex systems Ability to work autonomously in a fast-moving environment Experience with Azure and Docker Familiarity with … without people management responsibilities. Key Responsibilities: Build and maintain features using C#, ASP.NET Core, TypeScript, and Vue.js (or React/Angular) Own architecture and design of key systems and applications Develop scalable, secure, and maintainable solutions Collaborate closely with senior leadership on high-priority projects Mentor developers and promote More ❯

advancements, initially targeting the medical, education, and legal sectors. We specialize in turning innovation into impact. We are seeking an experienced Solution Architect to design and own the solution architecture for our scalable SaaS and custom products . The ideal candidate will align with the product roadmap, purpose, and … on Microservices Architecture , ensuring that our solutions are scalable, configurable, and cloud-agnostic, with seamless integrations across various systems. Key Responsibilities: Microservices Focus : Architect, design, and implement a robust microservices-based solution, enabling agility, scalability, and independent service deployments. Define and own the solution architecture for the product, ensuring … scalability, configurability, and cloud-agnostic capabilities. Develop HLD (High-Level Design) and LLD (Low-Level Design) documents for the product. Create and maintain the deployment architecture , ensuring efficient and resilient deployment strategies. Design the integration architecture , including APIs, microservices, and third-party integrations. Technical Leadership: Guide engineering More ❯