1 to 25 of 1,002 Permanent API Design Jobs in the UK

Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216 Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216 Get AI-powered advice on this job and more exclusive features. This range is provided by Humand Talent. Your actual pay will be based … Community Builder and Team Bar Raiser 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 in shaping tools that support real-world infrastructure at scale? We’re recruiting for a Lead Software Engineer on behalf of a fast-growing technology company whose platform is relied upon across thousands of physical locations in the UK and internationally. Known for their More ❯

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 ❯

Social network you want to login/join with: Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216, bradford col-narrow-left Client: Humand Talent Location: bradford, 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: 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 in shaping tools that support real-world infrastructure at scale? We’re recruiting for a Lead Software Engineer on behalf of a fast-growing technology company whose platform is relied upon across thousands of physical locations in the UK and internationally. Known for their More ❯

Social network you want to login/join with: Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216, london col-narrow-left Client: Humand Talent Location: london, 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: 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 in shaping tools that support real-world infrastructure at scale? We’re recruiting for a Lead Software Engineer on behalf of a fast-growing technology company whose platform is relied upon across thousands of physical locations in the UK and internationally. Known for their More ❯

Social network you want to login/join with: Lead Software Engineer (Scalability and API Design) - 95% Remote - £85k - ID41216, slough col-narrow-left Client: Humand Talent Location: slough, 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: 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 in shaping tools that support real-world infrastructure at scale? We’re recruiting for a Lead Software Engineer on behalf of a fast-growing technology company whose platform is relied upon across thousands of physical locations in the UK and internationally. Known for their More ❯

Job Description Key Accountabilities Accountable for delivering effective solution designs within the Open Banking COE, taking the lead on the solution design from an API design and API Security perspective. Design end-to-end API solutions to meet business needs within the context of … solution planning, providing input into the estimation process as well as highlighting technical risks, issues, and assumptions. Define and derive best practices in the API space, adopting industry best practices and highlighting areas of improvement. Produce required design artefacts, independently or as part of a team. Engage with … Support the delivery lead in breaking down the solution for iterative delivery in sprints. Review requirements and monitor change requests to ensure the solution design remains fit for purpose. Essential Skills & Experience Deep experience of UK's open banking standards coupled with solution implementation experience in the UK Open More ❯

and 2018 Best Wealth Management Company - presented by Fintech Breakthrough Awards 2021 Most Innovative Companies - presented by Fast Company 2021 Best API & Best Trading Technology - presented by Global Fintech Awards ABOUT THIS ROLE Apex Fintech Solutions is recognized for disrupting the financial services industry, enabling Fintech standouts like Stash … high-performance, and high-volume solutions that support mission-critical operations across a diverse client base. This role offers the opportunity to spearhead the design and delivery of efficient, scalable, and cost-effective margin-focused products, empowering clients with specialized tools to maintain or gain a competitive advantage. We … team backlog while ensuring alignment with strategic objectives, navigating ambiguities and resolving internal and external team dependencies. Maintain a strong understanding of technical services, API design, database technologies, and operating concepts in fintech industry to ensure robust and scalable product solutions. Education and/or Experience Bachelor's 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 ❯

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 ❯

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 ❯

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 ❯

API Integration Technical Lead Bristol- Hybrid £85,000-£110k + bonus 10-15% About the business: Based in the heart of Bristol this FTSE 100 business work in a fast paced, agile environment. They value diversity, inclusion, and collaboration across all teams. Working in this exciting sector you'll … through investing in people and technology. The Role: As part of a multi-million pound digital transformation Programme the business is seeking an experienced API Integration Technical Lead as part of a newly created centralise Integration team. As the API Integration technical lead you will manage a team … of API engineers in designing, developing, and maintaining robust and scalable APIs, shaping the API architecture, and driving technical direction. API Integration Technical Lead Key Responsibilities: Lead and mentor API engineers. Define and enforce coding standards and best practices. Collaborate with cross-functional teams to define 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 ❯

Manager to join our team. This role is critical in shaping our Private Markets financial platform architecture, driving the product management function for our API strategy and standalone platform services, and building the technical foundation that supports all our product offerings. You'll create platform components that serve internal … and external developers, defining technical value propositions that align with product roadmaps and business goals. Partner with cross-functional teams to identify platform requirements, API specifications, standalone service functionalities, and technical dependencies, collaborating on Minimum-Viable Platform Services (MVPs) and key technical enablers. Balance innovation with practicality in platform … strategies, technical debt management, API design, and service development, using customer feedback, performance metrics, and industry standards to inform decisions. Create and evangelize industry practices around Security, API, and developer usage across multiple product lines, developing migration strategies for existing and new customers to adopt new platform More ❯

Job Title: MuleSoft Architect Contract Location: Plymouth, MA Experience: 12+ years Role Summary: We are looking for an experienced MuleSoft Architect to lead the design and delivery of API integration solutions. This role involves architecting and implementing secure, scalable, and reusable integrations using MuleSoft, aligning with 15-factor … principles and enterprise API strategies. Key Responsibilities: Define and own the API integration architecture using MuleSoft Anypoint Platform or similar iPaaS tools. Lead design and implementation of integrations with third-party APIs (REST/SOAP), regardless of backend technology (.NET, Java Spring Boot, Node.js, etc.). Implement … token-based authentication, authorization, and enforce API gateway policies. Establish best practices for API lifecycle management using Swagger/OpenAPI specifications. Design and manage sandbox environments with mock/test data for parallel system testing. Solve integration edge cases and performance bottlenecks proactively. Implement and promote 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 ❯

days being required onsite in Oxford and 3 days WFH. Ideally starting on the 1st Jan if not before. You will lead the design and implementation of enterprise integration, orchestration, and event-driven architecture solutions within cloud infrastructure. This role demands expertise in cloud architecture (particularly AWS), API design and development, AsyncAPI and OpenAPI specifications, and experience with event-driven architectures and frameworks. You will be responsible for building scalable, efficient solutions that enable seamless communication across systems, automate workflows, and integrate event-based systems. THIS IS A HANDS-ON LEADERSHIP ROLE WHERE YOU WILL ALSO … for integration purposes. Expertise in designing and implementing enterprise-level integration and orchestration solutions in AWS using services like EventBridge, Lambda, SNS/SQS, API Gateway, Transfer Family, AppFlow, Glue, Step Function, S3, Kinesis, MQ, and DynamoDB Streams. Expertise in designing and implementing data integration workflows using AWS services More ❯