126 to 139 of 139 API Design Jobs in England

Senior Android Engineer - Hybrid, £100K

Hiring Organisation
Oliver Bernard
Location
London Area, United Kingdom
share code with iOS. You’ll be joining a collaborative engineering group working on major new features, shaping technical discussions, influencing architecture and API design, and helping to evolve a category-defining product used across the UK, US and several new international markets launching in 2026. What they ...

Python Engineer at a Global Private Equity Firm

Hiring Organisation
Saragossa
Location
City of London, London, United Kingdom
team. You’ll be interfacing with the business regularly, so strong communication skills are important. Ideal person is tech first (Strong Python engineering fundamentals, API design) while getting exposure to modern tech across the stack such as UI's, messaging frameworks and data validation tools. Having the experience ...

Senior Technical Product Manager

Hiring Organisation
Randstad Digital
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£70 - £80 per hour
Backend/DevEx focus). Communication: Ability to bridge the gap between business goals and engineering constraints. Technical Skills: Deep understanding of distributed systems, API design (RESTful), and event-driven architecture. Mindset: Data-driven, analytical, and comfortable in ambiguous environments. Strategy: Proven ability to align roadmaps across multiple ...

Backend Engineer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Live platform Contributing to a shared transaction layer used across multiple products Collaborating with frontend and mobile engineers to deliver consistent experiences Key Responsibilities Design and build backend services end-to-end Contribute to platform and API design decisions Improve system performance and reliability Work within … evolving architecture with real production constraints Profile The Backend Engineer will have strong API and service development skills Experience working on transaction systems, payments, or eCommerce platforms is required Experience with GraphQL preferred Exposure to Elixir, Go, or similar backend technologies Ability to work effectively in ambiguous, fast-changing ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
City of London, Greater London, United Kingdom
Employment Type
Permanent
Salary
£90000 - £160000/annum
heavily backend-biased position but given the size of the team you will be working across the stack when needed Build scalable, performant systems Design and deliver end-to-end features with direct impact on customer value Work with product and ML teams to help translate abstract and complex … software function About you: Strong ability across scalable and performant systems You have a product mindset Statically typed language expertise Experience with API design Low ego and love of engineering Full details are available. Please don't hesitate to reach out for more information. ...

Lead Software Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
up to £650/ day Inside IR35
modern React/Next.js application at the core of the platform Contributing to micro-frontend architecture (Module Federation) Working closely with backend engineers on API design, data flow, and system integration Developing and integrating with .NET/C# backend services Deploying and supporting applications within AWS (CloudFront … working within micro-frontend architectures or similar scalable frontend patterns Good understanding of AWS and how applications are deployed and served Strong grasp of API-driven architecture and frontend/backend interaction Experience building scalable, high-performance platforms Comfortable operating as a senior, hands-on engineer within a product ...

Graduate Frontend Developer

Hiring Organisation
Capua
Location
Warwickshire, England, United Kingdom
manage state management and data-fetching patterns, integrating seamlessly with RESTful APIs. Contribute to the development and evolution of a shared component library and design system. Maintain code quality through code reviews, automated testing, and continuous integration pipelines. Collaborate with backend engineers to shape API integrations and improve … developer experience. Work with product and design teams to deliver clear, intuitive user experiences for complex workflows. Requirements: Degree in Computer Science or a closely related discipline, minimum 2:1. Evidence of building end-to-end applications through university projects, internships, placements, or personal work. Strong grounding in logical ...

Technical Product Specialist

Hiring Organisation
Randstad Digital
Location
England, United Kingdom
Bring 5+ Years Experience: Proven track record in Technical Product Management or leading Developer Experience (DevEx) teams. Backend Expertise: Deep understanding of distributed systems, API design, and event-driven architecture. Strategic Communication: Ability to translate complex technical constraints into clear business value for senior stakeholders. Analytical Mindset ...

Open Banking Product Manager

Hiring Organisation
Morson Edge
Location
London Area, United Kingdom
moving beyond compliance to drive commercial value. Monitor platform performance and lead incident management alongside Engineering teams and external partners. Partner with Engineering on API design and authentication flows to ensure solutions are scalable and secure. Ensure strict adherence to Open Banking standards, maintaining strong controls and audit … across Engineering, Risk and Compliance to deliver customer-ready solutions. Skills & Experience: Significant experience with Open Banking (AIS & PIS) . Deep technical understanding of API architecture and authentication integrations. Proven track record of delivering Open Banking solutions within a UK regulated environment. A collaborative approach with a focus ...

Software Engineer - Java /Back End

Hiring Organisation
Som3
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum
Software Engineer - Java/Back End Hybrid - 2 days per week in the office Java, PostgreSQL, API We are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model to in-house. Working alongside … reviews with the outgoing external team. Gain understanding of the current Java application architecture - service boundaries, dependency injection patterns, build system, and deployment configuration. Design and implement new back-end features, enhancements, and bug fixes in Java, following agreed coding standards and architectural principles. PostgreSQL data model - schema design ...

Senior Software Engineer (Golang/Python) | Drug Discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits

Hiring Organisation
Owen Thomas | Pending B Corp™
Location
City of London, London, United Kingdom
help architect the infrastructure for the next generation of secure data collaboration. This is a high-autonomy role where you will own the technical design and lifecycle of production services used by some of the world’s largest pharmaceutical and data-intensive enterprises. Responsibilities for the Senior Software Engineer … Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits Design and evolve high-performance backend systems and APIs, primarily using Golang, with Python integrated for specific domain-driven logic. Build and operate software that bridges the gap between ...

Senior Software Engineer (Golang/Python) | Drug Discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits

Hiring Organisation
Owen Thomas | Pending B Corp™
Location
Leeds, West Yorkshire, United Kingdom
help architect the infrastructure for the next generation of secure data collaboration. This is a high-autonomy role where you will own the technical design and lifecycle of production services used by some of the world’s largest pharmaceutical and data-intensive enterprises. Responsibilities for the Senior Software Engineer … Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits Design and evolve high-performance backend systems and APIs, primarily using Golang, with Python integrated for specific domain-driven logic. Build and operate software that bridges the gap between ...

Senior Software Engineer (Golang/Python) | Drug Discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits

Hiring Organisation
Owen Thomas | Pending B Corp™
Location
Ashton-Under-Lyne, Greater Manchester, United Kingdom
help architect the infrastructure for the next generation of secure data collaboration. This is a high-autonomy role where you will own the technical design and lifecycle of production services used by some of the world’s largest pharmaceutical and data-intensive enterprises. Responsibilities for the Senior Software Engineer … Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits Design and evolve high-performance backend systems and APIs, primarily using Golang, with Python integrated for specific domain-driven logic. Build and operate software that bridges the gap between ...

Software Engineer | Canvas | SVG | High-Performance Charting

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
widely-used charting library used by thousands of developers building data-intensive applications. This is core product engineering — focused on rendering, performance, correctness, and API design. This is not a typical frontend role. You’ll be working closer to a graphics engine than an application layer. What … APIs Solving performance-critical problems in Canvas and SVG Working on correctness and precision in data visualisation Taking features end-to-end — from design through to release Collaborating with senior engineers on a highly integrated visual system Optionally contributing to technical content, demos, or talks What they’re looking ...