1 to 25 of 304 API Design Jobs

API Platform Architect

Hiring Organisation
Hellowork Consultants
Location
London Area, United Kingdom
API Platform Architect – Azure, Kubernetes, Terraform, API Management (Hands-On Role) Overview We are seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform. This role is fully hands-on , combining deep expertise … Azure cloud services, Kubernetes, Terraform, API security, and distributed systems with the ability to guide, review, and contribute to .NET Core API development practices . The architect will define and maintain the vision and standards for the platform while actively engaging in coding, troubleshooting, design reviews ...

Senior Product Manager - API (Remote from Ireland)

Hiring Organisation
Jobgether
Location
Ireland
Employment Type
Permanent
Salary
EUR 80,000 - 100,000 Annual
This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Product Manager - API in Ireland. This role is focused on leading the strategy, development, and management of core API products that serve developers and institutional clients globally. The Senior … Product Manager - API will define the product roadmap, set standards for API design and security, and ensure an exceptional developer experience. You will collaborate closely with engineering, security, marketing, and business teams to build scalable, reliable, and well-documented APIs. The role requires deep technical understanding ...

Salesforce & React Native Developers - London

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£450 - £550 per day
London. 12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. Salesforce & ReactNative - Salesforce and .or ReactNative (Web), Java, TDD, RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, SonarQube, Veracode, Jira, Confluence Open Stack BA - Salesforce, ReactNative (Web), Java … RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, Jira, Confluence API Developer - Java, TDD, RESTful API design & build, OAS/YAML, GitLab, CI/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply ...

Open Stack, Salesforce & React Native Specialists - London Atrium EME

Hiring Organisation
Atrium Global
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550 per day
12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. Open Stack/Salesforce & ReactNative - Salesforce, ReactNative (Web), Java, TDD, RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, SonarQube, Veracode, Jira, Confluence Open Stack BA - Salesforce, ReactNative (Web), Java … RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, Jira, Confluence API Developer - Java, TDD, RESTful API design & build, OAS/YAML, GitLab, CI/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply ...

Senior Software Engineer

Hiring Organisation
Tiro Partners
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £120000/annum
Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Senior Software Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £120,000 per annum
Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Senior Applications Engineer - Backend Java

Hiring Organisation
Hays
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£70,000
possess a combination of some of the following skills, then LETS TALK! Experience in Java development Backend cloud-based application development Understanding of API design for mobile applications with event-driven architecture Strong analysis and problem-solving skills Preferred - Experience of building distributed scalable microservices using Java/… Kotlin, Spring Boot, OAuth 2.0, Secure API design A working understanding of technologies/areas: AWS, API Design, Automation testing In return, you will be rewarded with a highly competitive benefits package including a bonus and ongoing career development and training. What you need ...

Senior Product Manager

Hiring Organisation
Greater Giving, Inc
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 80,000 - 100,000 Annual
best-in-class payment technology and software solutions. Join our dynamic team and make your mark on the payments technology landscape of tomorrow. Our API Product Managers take a leading role in defining, designing, building and bringing to market Global Payments products and capabilities via our API. Working within … Design and Delivery team within the wider Developer Experience and API team, the API Product Manager, will focus on the Global Payments API product offerings with the goal of delivering a world class integration experience for new and existing capabilities for merchants/partners and their ...

Senior Solution Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
embark on a journey along with an organization to becoming the best tech, modern luxury, and sustainable mobility company in the world. The Enterprise API portfolio is here to enable seamless new customer experiences across all our iconic brands. We are scaling our API operations and looking … teams and provide technical leadership in designing evolvable systems that can scale to meet our customer needs. Help guide development using JLR API patterns and practices. As part of the team, you will collaboratively be designing, implementing, and run API technology solutions on our platform. Drive the strategic ...

Senior Azure API Engineer

Hiring Organisation
Vermillion Analytics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £750/day
Senior Azure API Engineer Outside IR35 | £(Apply online only)/day | Remote/Hybrid UK The Role Lead the design and delivery of enterprise-grade API solutions on Azure. You'll architect scalable, secure API platforms that unlock business value from data and drive monetization opportunities. … Platform team, you'll build the critical integration layer connecting internal teams and external customers to consistent, reliable data services. What You'll Do Design and operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define ...

Senior Azure API Engineer

Hiring Organisation
Vermillion Analytics
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£550 - £750 per day
Senior Azure API Engineer Outside IR35 | £550-750/day | Remote/Hybrid UK You must have the right to work in the UK The Role Lead the design and delivery of enterprise-grade API solutions on Azure. You'll architect scalable, secure API platforms that … Platform team, you'll build the critical integration layer connecting internal teams and external customers to consistent, reliable data services. What You'll Do Design and operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define ...

Back-End Engineer

Hiring Organisation
Navys
Location
Slough, Berkshire, UK
Employment Type
Full-time
narrow or isolated engineering role. It requires ownership, comfort with ambiguity, and the ability to take responsibility for backend features and services from early design through to production deployment. Responsibilities Backend Development and API Design Design, build and ship scalable backend services and RESTful APIs … backend features from concept through to production release Platform Infrastructure and Performance Develop and maintain cloud infrastructure with a strong focus on Azure services Design and implement database schemas, optimise queries and ensure data integrity Build resilient, performant systems capable of handling enterprise workloads Ensure backend services are secure ...

Back-End Engineer

Hiring Organisation
Navys
Location
City of London, London, United Kingdom
narrow or isolated engineering role. It requires ownership, comfort with ambiguity, and the ability to take responsibility for backend features and services from early design through to production deployment. Responsibilities Backend Development and API Design Design, build and ship scalable backend services and RESTful APIs … backend features from concept through to production release Platform Infrastructure and Performance Develop and maintain cloud infrastructure with a strong focus on Azure services Design and implement database schemas, optimise queries and ensure data integrity Build resilient, performant systems capable of handling enterprise workloads Ensure backend services are secure ...

Senior Backend Developer

Hiring Organisation
DCV Technologies Limited
Location
Manchester, North West, United Kingdom
Employment Type
Contract, Work From Home
cloud-native platforms supporting mobile applications in a regulated environment. This is a hands-on backend role focused on Java/Kotlin microservices, secure API design, and cloud delivery. You will contribute across the full SDLC while influencing engineering standards, best practices, and technical quality. Key Responsibilities Design … continuous improvement initiatives Required Skills & Experience Strong backend development experience with Java and/or Kotlin Spring Boot, REST APIs, microservices architecture Secure API design, OAuth, authentication/authorisation AWS or cloud platform experience Event-driven systems and distributed architectures Experience working in financial services or regulated environments ...

Mobile Engineer (Android)

Hiring Organisation
Captur
Location
Slough, Berkshire, UK
Employment Type
Full-time
pressure; make frame-time and latency predictable across device classes Define and monitor SDK health metrics at scale (crashes, ANRs, error rates, perf envelopes) API design and developer experience Design clear, stable, Kotlin-first public APIs (versioned, well-documented, testable) Implement best practices for networking, auth … fixes and verify via dashboards Provide concise developer-facing change notes/migration snippets to the Solutions Engineer for release notes Roadmap contribution Co-design the next generation of the Android Captur SDK for release at the end of Q2 Champion performance budgets and device-class targets during planning ...

Mobile Engineer (Android)

Hiring Organisation
Captur
Location
City of London, London, United Kingdom
pressure; make frame-time and latency predictable across device classes Define and monitor SDK health metrics at scale (crashes, ANRs, error rates, perf envelopes) API design and developer experience Design clear, stable, Kotlin-first public APIs (versioned, well-documented, testable) Implement best practices for networking, auth … fixes and verify via dashboards Provide concise developer-facing change notes/migration snippets to the Solutions Engineer for release notes Roadmap contribution Co-design the next generation of the Android Captur SDK for release at the end of Q2 Champion performance budgets and device-class targets during planning ...

Lead Full-Stack Developer

Hiring Organisation
Goodman Masson
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £110,000 per annum
shaping Meteor's digital future. Key Responsibilities Lead, mentor, and inspire a team of developers, fostering a culture of technical excellence and continuous improvement Design, develop, and maintain high-quality software solutions across the full stack Architect and implement systems using .NET, JavaScript, SQL, and modern frontend frameworks Oversee … API design and integrations, ensuring secure and efficient data exchange Translate business and stakeholder requirements into clear technical solutions Conduct code reviews and ensure adherence to coding, security, and quality standards Drive continuous improvement in development workflows, testing, and deployment practices Support the professional development of team members ...

Remote Software Engineer (UK)

Hiring Organisation
Turing
Location
United Kingdom
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Remote Software Engineer (UK)

Hiring Organisation
Turing
Location
City of London, London, United Kingdom
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Remote Software Engineer (UK)

Hiring Organisation
Turing
Location
Bury, Greater Manchester, United Kingdom
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Remote Software Engineer (UK)

Hiring Organisation
Turing
Location
Leeds, West Yorkshire, United Kingdom
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Dev Sec Ops Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £480 to £500 per day
Days in Office The Role Dev Sec Ops Engineer Role Overview We are seeking a highly skilled Senior Data Platform & Integration Engineer to design, develop, and optimize enterprise data solutions. The ideal candidate will have deep expertise in modern data platforms, integration technologies, and advanced analytics, including AI/… ML. Key Responsibilities Data Platform Management Design and implement solutions using Microsoft Fabric, Snowflake, CosmoDB, Databricks, MongoDB, and traditional RDBMS systems Data Replication & CDC Configure and manage Qlik Replicate and Oracle GoldenGate for real-time data synchronization Data Modeling Develop conceptual, logical, and physical models using ERStudio Integration & Messaging ...

Integration Specialist

Hiring Organisation
Impellam Group
Location
England, United Kingdom
Contract API Gateway Specialist (Software AG/webMethods/Defence) £600 per day (Outside IR35) Part-time 12‐month contract (approx. 110 days’ effort ) Full Remote | Client based in Portsmouth About the Role An excellent long-term contract opportunity for an experienced API Gateway Specialist to support … major Defence-sector programme. The successful contractor will work remotely, contributing deep technical expertise around Software AG and webMethods technologies, cloud integrations, and secure API design. Candidates with a strong background in API Gateway technologies (SAG, IBM API Gateway, webMethods) from any sector will be considered. Existing ...

Integration Specialist (Webmethods) - Remote Outside IR35

Hiring Organisation
Lorien
Location
England, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 Daily
Contract API Gateway Specialist (Software AG/webMethods/Defence) £600 per day (Outside IR35) part time 12-month contract (approx. 110 days' effort ) Full Remote | Client based in Portsmouth About the Role An excellent long-term contract opportunity for an experienced API Gateway Specialist to support … major Defence-sector programme. The successful contractor will work remotely, contributing deep technical expertise around Software AG and webMethods technologies, cloud integrations, and secure API design. Candidates with a strong background in API Gateway technologies (SAG, IBM API Gateway, webMethods) from any sector will be considered. Existing ...

Senior Software Engineer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
maintainable code. This is an exciting opportunity to join collaborative and innovative startup with opportunities for professional growth and learning. What You’ll Do Design and develop high-throughput, low-latency APIs using Go. Build and maintain real-time data ingestion and processing pipelines. Optimise backend services for scalability … delivery. Collaborate with front-end teams to power trading consoles and dashboards. Profile and tune Go applications for performance and memory efficiency. Ensure secure API design and compliance with data privacy regulations. Contribute to architecture discussions, code reviews, and documentation. Key requirements Strong experience with Golang in production ...