API Design Jobs in England

501 to 525 of 949 API Design Jobs in England

Senior/Lead Mulesoft Developer (Integration & Automation)

Lewes, England, United Kingdom
Hays
per week in their headquarters in Lewes, East Sussex. Your new role The Senior Integration & Automation Engineer will be the lead developer for enterprise automation initiatives, responsible for the design, development, and oversight of automation solutions that streamline administrative and back-office functions within the service. The role will also provide technical leadership, contribute to solution architecture, and guide … but will also be communicating regularly with the Strategic Insights Manager, Lead Data Architect and Cloud team as well as Business Leads to advise and inform technical direction and design of automation. You'll provide leadership and mentoring of the Automation development stand in Strategic Insights team. The Strategic Insights team is expanding to cover not only Fabric (Power … BI) but Power Platform, Mulesoft/API and RPA. This enables you to work closely with the wider strategic insights team including to build overarching solutions rather than fix one problem at a time. Day to day you'll be delivering new solutions into the organisation requiring significant focus to test and document the work, then moving on to More ❯
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Contract - Senior/Principal Java Developer

London Area, United Kingdom
Source Technology
a fit. You’ll be working closely with infrastructure, architecture, and infosec teams to support high-availability production systems. The role also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of … Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who thrives in complex environments and enjoys More ❯
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Contract - Senior/Principal Java Developer

City of London, London, United Kingdom
Source Technology
a fit. You’ll be working closely with infrastructure, architecture, and infosec teams to support high-availability production systems. The role also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of … Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who thrives in complex environments and enjoys More ❯
Posted:

Contract - Senior/Principal Java Developer

South East London, England, United Kingdom
Source Technology
a fit. You’ll be working closely with infrastructure, architecture, and infosec teams to support high-availability production systems. The role also involves guiding CI/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of … Comfortable working with legacy systems and large enterprise environments Confident in leading technical conversations across multiple engineering disciplines Experience with CI/CD pipelines and modern deployment practices REST API design This is a great opportunity for an experienced Java Developer to join a prestigious financial player. If you’re someone who thrives in complex environments and enjoys More ❯
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Solutions Architect - Azure

Kingston upon Thames, England, United Kingdom
Invecta
of this transformation, they’re seeking a Solutions Architect to play a key role in designing scalable, secure, and future-proof solutions. What You’ll Be Doing: Leading the design and delivery of Azure-based architectures (IaaS, PaaS, serverless, data, AI/ML). Collaborating across teams to understand business needs and define target architecture. Driving modernization efforts, integrating … REST, SOAP, GraphQL) and hybrid cloud communications. Developing architecture blueprints and technical documentation (HLD/LLD). Supporting governance, procurement, and executive reporting. Mentoring engineering teams on Azure, DevOps, API design, and security best practices. What You’ll Bring: Strong understanding of infrastructure, software, data, and security architecture. Experience in Azure migration and modernization of legacy platforms. Deep … knowledge of Microsoft Azure services (M365, Entra, APIM, Azure DevOps). Experience with microservices, AKS, API-first design, Logic Apps, and Service Bus. Proven track record in large-scale system integration projects. Excellent communication skills for explaining complex concepts to non-technical stakeholders. Experience in Insurance, financial services, or banking systems is preferred. Additional Details: Seniority level: Mid More ❯
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Principal Architect APIs & Integration

London, United Kingdom
Bupa
services to provide exceptional experiences 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 alignment with business strategy and enterprise direction. Track progress and quality of architecture initiatives. Support business development activities and translate this to strategic API More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

Bournemouth, England, United Kingdom
Hybrid / WFH Options
ZipRecruiter
and applications. What you'll do: As a Senior Software Engineer, you'll be at the forefront of our development efforts, taking ownership of new features and applications from design to deployment. Your responsibilities will include: Designing and leading the development of new software features and applications within an Agile environment, encompassing Desktop and Web applications, Windows and Web … positive product outcomes. Key skills and experiences we're looking for include: Extensive C#/.NET programming experience using Visual Studio and WPF. A strong understanding of Object-Orientated Design and Principles . Experience with .NET compatible testing frameworks (e.g., nUnit). Proficiency in web-based technologies , including the design and implementation of secure communications in multi-client … server communication systems, and experience with web API design and development . Familiarity with the management of YAML build and release pipelines . Proven experience working in a business-oriented Agile environment and with Git source control . If you're ready to take on a challenging and rewarding role where your expertise will directly contribute to our More ❯
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OTC Developer - Financial Services

London, United Kingdom
Hamilton Barnes Associates Limited
contributing to the development and support of a multi-language technology stack that powers global trading operations. The role involves collaborating with software engineers, traders, and quantitative researchers to design full-stack software systems such as trading systems, exchange connectivity solutions, and monitoring platforms. The technology stack includes Java, C++, and Python. This is an excellent opportunity to contribute … to global trading solutions while leveraging cutting-edge technology. Role: Manage and maintain cutting-edge software systems supporting 24/7 global trading. Design and implement full-stack systems Predominately work across Java. Conduct comprehensive testing at unit, functional, and integration levels. Tackle both legacy code enhancements and greenfield development. Qualifications: Proven experience designing, developing, and maintaining mission-critical … high-performance applications. 5+ years of professional experience with Java Knowledge of network communication protocols Hands-on experience with inter-process messaging, microservices architecture, and API design. Salary: Up to £250,000 Total Comp (Depending on experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Developer

London Wall, King's Cross, Greater London, United Kingdom
Xpertise Recruitment
a key role in designing, building, and deploying high-assurance software systems. The work is varied, fast-paced, and requires close collaboration with technical teams and stakeholders. Key Responsibilities Design, develop, and deliver secure and scalable software solutions. Work in collaboration with stakeholders to understand requirements and deliver fit-for-purpose solutions. Operate within an Agile delivery environment, using … modern development practices including CI/CD pipelines. Ensure all software developed adheres to secure development principles. Essential Skills and Experience Strong experience in RESTful API design and development. Proficiency in the Spring Framework. Solid understanding of data modelling. Experience working in Agile delivery teams. Understanding of secure software engineering principles. This role offers the opportunity to contribute More ❯
Employment Type: Contract
Rate: £600 - £700/day
Posted:

React Native Developer

London, England, United Kingdom
Consortia
tools for complex industries. As a React Native Developer, you will lead the development of intuitive mobile apps that empower users to manage high-value operations efficiently. From system design to deployment, your work will have direct impact on planning, coordination and execution at scale. You will primarily focus on the mobile front end using React Native and Expo … but this is not a siloed role. You will also contribute across the stack, collaborating on REST API design, integrating backend systems using Node.js, and ensuring the delivery of seamless user experiences powered by robust data services. What is on offer: • Autonomy to shape the mobile architecture of a growing SaaS product • The opportunity to solve meaningful, real … architects • A focus on engineering quality, learning and scalable systems What you will be doing: • Building and maintaining the mobile application using React Native and Expo • Collaborating on REST API integration and backend services in Node.js • Working with SQL databases and contributing to backend data flow • Supporting UI and UX teams to translate user needs into reliable mobile solutions More ❯
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Senior Backend (Laravel) Engineer - Series A - PropTech Startup

London, England, United Kingdom
Hybrid / WFH Options
Randstad (Schweiz) AG
technologies and methodologies to drive 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 Security: Laravel security best practices, SAML2 authentication, CORS policies, XSS and CSRF protection, input validation More ❯
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React Developer

Leeds, England, United Kingdom
Hybrid / WFH Options
Zealous Agency
. Experience with Next.js or similar web frameworks. CI/CD & GIT . Deep understanding of Tailwind CSS for rapid and clean UI development. Experience with PostgreSQL for database design, management, and optimization. Familiarity with RESTful API design and integration . Contact Information For further information on the role please contact Jack.Turner@zealousagency.co.uk Seniority level Mid-Senior More ❯
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Next.JS Software Engineer - Remote

London, United Kingdom
Hybrid / WFH Options
Exposed Solutions
TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of users. What You'll Do: Design and implement scalable and high-performance web applications using Next.js and Supabase. Develop clean, maintainable, and efficient code in TypeScript. Collaborate with cross-functional teams to define, design … trends and technologies to continuously improve development practices. Technical Requirements: Strong experience with Next.js and TypeScript. Proficiency in front-end technologies such as HTML, CSS, and JavaScript. Experience with API design and development, including RESTful services. Familiarity with databases and data modeling, particularly with Supabase is a plus. Understanding of Agile methodologies and experience working in collaborative team More ❯
Employment Type: Permanent
Salary: GBP 60,000 - 80,000 Annual
Posted:

Next.JS Software Engineer - Remote

West London, London, United Kingdom
Hybrid / WFH Options
Exposed Solutions
TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of users. What You'll Do: Design and implement scalable and high-performance web applications using Next.js and Supabase. Develop clean, maintainable, and efficient code in TypeScript. Collaborate with cross-functional teams to define, design … trends and technologies to continuously improve development practices. Technical Requirements: Strong experience with Next.js and TypeScript. Proficiency in front-end technologies such as HTML, CSS, and JavaScript. Experience with API design and development, including RESTful services. Familiarity with databases and data modeling, particularly with Supabase is a plus. Understanding of Agile methodologies and experience working in collaborative team More ❯
Employment Type: Permanent, Work From Home
Salary: £80,000
Posted:

Next.JS Software Engineer - Remote

W1B, Marylebone High Street, Greater London, United Kingdom
Hybrid / WFH Options
Exposed Solutions
TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of users. What You'll Do: Design and implement scalable and high-performance web applications using Next.js and Supabase. Develop clean, maintainable, and efficient code in TypeScript. Collaborate with cross-functional teams to define, design … trends and technologies to continuously improve development practices. Technical Requirements: Strong experience with Next.js and TypeScript. Proficiency in front-end technologies such as HTML, CSS, and JavaScript. Experience with API design and development, including RESTful services. Familiarity with databases and data modeling, particularly with Supabase is a plus. Understanding of Agile methodologies and experience working in collaborative team More ❯
Employment Type: Permanent
Salary: £60000 - £80000/annum
Posted:

GO Developer

London, England, United Kingdom
Hybrid / WFH Options
Endeavour Recruitment Solutions
Deep understanding of the principles of real-time bidding and ad serving. Experience in GO development and programming. Knowledge in Java. Knowledge of relational databases, SQL, and ORM technologies. API design, management, and consumption. High volume data gathering, processing, and transformation. Microservice design, development, deployment, and transformation. AWS and GCP cloud environments. Experience with test-driven development More ❯
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Lead Data Scientist

Slough, England, United Kingdom
JR United Kingdom
team leadership. What You’ll Do Oversee data science projects, guide junior team members, and drive innovation. Build predictive models for campaign optimisation, customer segmentation, and price elasticity. Design and implement AI-powered solutions to solve complex marketing challenges. Use machine learning and statistical techniques to analyse trends and improve business outcomes. Work with cross-functional teams and present … and managing data science teams. Deep knowledge of media measurement techniques, such as media mix modelling. Experience with advanced AI techniques, including NLP, GenAI, and CausalAI. Familiarity with MLFlow, API design (FastAPI), and dashboard building (Dash). If this role looks of interest, reach out to Joseph Gregory #J-18808-Ljbffr More ❯
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Software Engineering Manager

Maidenhead, Royal Borough of Windsor and Maidenhead, Berkshire, United Kingdom
WHD
be working closely with your product managers, product owners, engineering leaders, your team and other stakeholders. You will be leading developers, quality engineers and partnering with CloudOps, TechOps, UX Design other cross-functional functional groups to evolve our solutions while continuing to improve your teams’ adoption of SDLC processes, CI/CD integration, code quality & automation test coverage. Primary … efficiencies, improvements, challenges, remediation needs Correlate, report, and drive the adoption of Process/Continuous Improvement initiatives Recruit & provide leadership, coaching & career planning for engineering talent Be accountable for design decisions for new and existing application development, proactively escalating issues and seeking assistance to overcome obstacles Partner with Product Management to consult on solution feasibility and high-level effort … technology adoption and framework improvement, analyzing trends, patterns and best practices for software Serve as the evangelist and custodian of technology, architecture, and product development practices Participate in the design & implementation of production cloud grade services supporting high availability Qualifications 5+ years of experience leading software engineers for product development Experience managing capitalized software processes Preferred: experience with managing More ❯
Employment Type: Permanent
Salary: £75000 - £85000/annum
Posted:

Software Engineering Manager

Maidenhead, Berkshire, South East, United Kingdom
WHD Consulting Ltd
be working closely with your product managers, product owners, engineering leaders, your team and other stakeholders. You will be leading developers, quality engineers and partnering with CloudOps, TechOps, UX Design other cross-functional functional groups to evolve our solutions while continuing to improve your teams adoption of SDLC processes, CI/CD integration, code quality & automation test coverage. Primary … efficiencies, improvements, challenges, remediation needs Correlate, report, and drive the adoption of Process/Continuous Improvement initiatives Recruit & provide leadership, coaching & career planning for engineering talent Be accountable for design decisions for new and existing application development, proactively escalating issues and seeking assistance to overcome obstacles Partner with Product Management to consult on solution feasibility and high-level effort … technology adoption and framework improvement, analyzing trends, patterns and best practices for software Serve as the evangelist and custodian of technology, architecture, and product development practices Participate in the design & implementation of production cloud grade services supporting high availability Actively talent manage your team providing career planning & performance improvement activities when needed Qualifications 5+ years of experience leading software More ❯
Employment Type: Permanent
Salary: £85,000
Posted:

Principal Data Scientist

London, England, United Kingdom
Harnham
team leadership. What You’ll Do Oversee data science projects, guide junior team members, and drive innovation. Build predictive models for campaign optimisation, customer segmentation, and price elasticity. Design and implement AI-powered solutions to solve complex marketing challenges. Use machine learning and statistical techniques to analyse trends and improve business outcomes. Work with cross-functional teams and present … and managing data science teams. Deep knowledge of media measurement techniques, such as media mix modelling. Experience with advanced AI techniques, including NLP, GenAI, and CausalAI. Familiarity with MLFlow, API design (FastAPI), and dashboard building (Dash). If this role looks of interest, reach out to Joseph Gregory. Seniority level Mid-Senior level Employment type Full-time Job More ❯
Posted:

Backend-Leaning Full-Stack TypeScript Developer – Perm

London, England, United Kingdom
Oliver Bernard
and implement solutions that impact how users interact with AI in a professional capacity. 3+ years experience with Node.js and TypeScript Solid understanding of backend architecture , databases (PostgreSQL), and API design Exposure to React on the front end (bonus for design system knowledge) Experience with cloud infrastructure (preferably AWS) A builder’s mindset: you're curious, autonomous More ❯
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System Engineer

City Of Bristol, England, United Kingdom
Inductosense
integration solutions that bring our sensing technology into real-world use. Key Responsibilities System Integration & Software Architecture Define, document, and manage integration requirements between Inductosense systems and customer infrastructure. Design and implement integration architectures that support seamless software communication across disparate platforms. Develop and maintain APIs, middleware connectors, and data exchange protocols. Evaluate customer systems and propose tailored integration … from requirement gathering through deployment. Architect robust, scalable, and maintainable software integration solutions. Remain hands-on in development and troubleshooting when needed. Stay engaged across the full integration lifecycle: design, test, deploy, support. Proactively share knowledge and improve internal integration practices. Requirements 5+ years of experience in software engineering, electrical/electronics engineering, systems integration, or a related technical … implementing integration solutions between disparate systems Strong technical skills in either: Software development with at least one language commonly used for integration (Python, Java, C#, etc.) Electrical/electronics design with experience in communication protocols and interfaces (I2C, SPI, UART, CAN, etc.) Experience with hardware-software interfaces, API design, communication protocols, and integration methodologies Knowledge of integration More ❯
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Frontend Developer

Leeds, England, United Kingdom
Digital Gurus
role Strong JavaScript/TypeScript skills Solid grasp of accessibility and performance best practices Experience working in collaborative teams (TDD, paired programming, CI/CD) Comfortable with relational databases, API design, and CMS integrations If you’re interested in this role then apply now or email kaiyashah@digitalgurus.co.uk More ❯
Posted:

Solution Architect

London, England, United Kingdom
Hybrid / WFH Options
Barchester Healthcare
integrated solutions using industry best practice methodologies which ensure seamless functionality across multiple business functions and systems Be a critical business partner to Demand and Project Delivery teams to design, validate and promote solutions aligned to industry standards while contributing to strategic roadmaps Demonstrate proven ability to deliver in partnership with legacy systems Lead architecture review sessions to facilitate … collaborative design validation and refinement Apply deep expertise in infrastructure, data management, and application development, with focus on technologies including Azure, AWS, iPaaS services, API design and management Lead proof-of-concept initiatives Work within complex landscapes, finding innovative solutions for modernization and integration challenges Champion agile methodologies, DevOps practices, and quality engineering principles throughout the development More ❯
Posted:

PHP Developer

Chester, Cheshire, North West, United Kingdom
Hybrid / WFH Options
Hyperloop Recruitment
experience with object-oriented PHP MVC-based frameworks (Laravel or Symfony) SQL/NoSQL Version control (Git) HTML5, CSS3 JavaScript Strong communicator (both written and verbal) Linux Shell (Bash) API design/development AWS Docker The role is paying up to £50,000 (DOE) + benefits including private medical insurance, and will be a hybrid working model of More ❯
Employment Type: Permanent, Work From Home
Salary: £50,000
Posted:
API Design
England
10th Percentile
£52,500
25th Percentile
£60,000
Median
£80,000
75th Percentile
£98,474
90th Percentile
£136,291