26 to 50 of 90 API Development Jobs in England

Full Stack (Web) Developer

Hiring Organisation
Metaskil Limited
Location
Stroud, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £48,000 per annum
require a Full-Stack (Web) Developer to join their team and help enhance the company’s core digital infrastructure. This is a hands-on development role for a developer who thrives on complex, integrated systems, enjoys problem solving across the full stack, and wants to contribute to a mission … critical platform. You will demonstrate strong full-stack development experience with Laravel/PHP for API development and front-end frameworks such as Vue.js (or similar), a familiarity with Node.js and experience with CMS platforms and content/data migrations. In addition, you will have proven experience ...

Senior Software Engineer - Pensions, ISA and Investments

Hiring Organisation
Hargreaves Lansdown
Location
Bristol, UK
Employment Type
Full-time
processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed … support the development team. Continually develop both technical and interpersonal skills. Providing engineering support for existing applications when necessary. About You Professional experience with AWS, full stack TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools ...

Senior Software Engineer - Pensions, ISA and Investments

Hiring Organisation
Hargreaves Lansdown
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Part Time
Salary
£80,000
processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed … support the development team. Continually develop both technical and interpersonal skills. Providing engineering support for existing applications when necessary. About You Professional experience with AWS, full stack TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools ...

Software Development Team Leader

Hiring Organisation
Neptune (Europe) Ltd
Location
Swindon, Wiltshire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Neptune, we believe great technology starts with great people. We're looking for a Software Development Team Leader who's as passionate about mentoring others as they are about writing exceptional code. You'll lead a talented team of developers, guiding them through the full software development lifecycle … their potential, fostering a culture of collaboration, learning, and continuous improvement. Day to day you will: Manage the full lifecycle of software projects - planning, development, delivery, and beyond. Work with product owners, project managers, and stakeholders to define priorities and remove roadblocks. Keep projects on time, on budget ...

Senior Software Developer C# / Azure

Hiring Organisation
Greenfield I T Recruitment
Location
Liverpool, Merseyside, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
work in the UK The Opportunity A growing energy technology business with green credentials is expanding its internal engineering team to support the continued development of a mission-critical asset and energy management platform .The organisation operates across energy-intensive industrial environments, where system reliability, performance and resilience … functionality, integration and performance improvements. The Role You’ll work on a modern, cloud-based platform supporting live operational environments. The role spans API development, Azure services, data layers and portal functionality, with a strong focus on quality, scalability and long-term maintainability.Working closely with technical leadership ...

Web Developer - Remote (PHP, .JS, SQL)

Hiring Organisation
Metaskil Limited
Location
Stroud, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
software require a Web Developer to join their team and help enhance the company’s core digital infrastructure. You will demonstrate strong full-stack development experience with Laravel/PHP for API development and front-end frameworks such as Vue.js (or similar), a familiarity with Node.js … content/data migrations. In addition, you will have proven experience with relational databases (MySQL) and familiarity with NoSQL databases (MongoDB). Experience with API design and integrations, connecting multiple business systems and an understanding of authentication, authorisation, and web security best practices. You will be proficient with ...

Software Engineer - Pensions, ISA & Investments

Hiring Organisation
Hargreaves Lansdown
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
Salary
£65,000
processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships within the squad across Product and Engineering. Participating in working groups and communities of practice designed to support the development … Cypress, Backstop). Enjoys learning - you prioritise growing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance ...

Full Stack Engineer (Web & Data)

Hiring Organisation
Templeton & Partners - Innovative & Inclusive Hiring Solutions
Location
City of London, London, United Kingdom
provider is looking for a Full Stack Engineer (Web & Data) to join its growing Automation & Analytics team in London. This hybrid role blends web development with data engineering, offering exposure to everything from dynamic front‐end interfaces and API development to cloud‐based data pipelines and analytics … platforms. If you love combining creativity in web development with the logic and scalability of data engineering, this is your opportunity to grow in a cutting‐edge environment. What You’ll Do Design, develop, and maintain end‐to‐end web applications —from intuitive front‐end interfaces to robust back ...

Senior PHP Developer

Hiring Organisation
ByteHire
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
behaviour. Mentor junior and mid-level engineers and contribute to architectural decision-making. Tech Stack and Tools: Primary Backend: PHP (Laravel) core application and API development Supporting Services: Java and Golang (smaller services and components), Python where appropriate Data Stores: MySQL, Elasticsearch, Redis Cloud & DevOps: AWS, Docker …/CD pipelines Messaging & Streaming: Kafka (or similar) Monitoring & Logging: Grafana, Sentry, AWS Logs Requirements/experience: 5+ years of backend development experience, with strong PHP and Laravel expertise. Deep, hands-on experience with Elasticsearch, including index design, query optimisation, and performance tuning in production. Strong MySQL knowledge, including ...

Senior Full Stack Developer

Hiring Organisation
Proactive Appointments
Location
Northampton, Northamptonshire, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 60,000 Annual
their search for a Senior Full Stack Developer to join their team on a permanent basis. The successful candidate will have strong full-stack development experience, including system integrations, and will be capable of designing, developing, and implementing technical solutions that enhance business processes. Key Skills & Experience Proven experience … full-stack development (Front End and Back End) Strong proficiency in JavaScript, React, Node.js, HTML, CSS, and SQL Experience with API development and cloud-based systems , preferably AWS (Lambda, S3, Redshift) Python programming experience Excellent analytical and problem-solving skills Strong communication and collaboration abilities Degree ...

Python Developer- DevOps & PostgreSQL

Hiring Organisation
Vallum Associates Limited
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 per hour
IR35 500GBP/Day Job Description: Python developer responsible for building scalable automation solutions to streamline database operations. Required Skills. Hands on experience with API development using Python and FastAPI. Strong problem-solving, debugging, and analytical skills. Responsibilities: Design, develop and maintain automation solutions for databases operations … rollouts Build and Integrate API for Database Management Operations and automation workflows Troubleshoot automation issues across scripting, API s and containerized environments. Containerize and deploy application/services using Docker and Kubernetes Administration for Kubernetes Resources (Pods, Ingress, Services, Secrets, CRDs, etc) Nice to have Exposure on enhancing ...

Data Integration Developer

Hiring Organisation
Hays Technology
Location
Birmingham, West Midlands, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day £525 outside IR35
MariaDB Database Backups from Learning Pool - Existing Data Lake assets - Power BI consumption layer In parallel, they are implementing Learning Pool User Provisioning via API, enabling automated CRUD operations for LMS accounts. A dedicated resource is required to deliver the ingestion pipelines, modelling, API integrations, and operational components. … API Development - Build integration to the Learning Pool External Extended API for Create, Retrieve, Update, and Delete LMS users. - Implement all mandatory and optional schema attributes, including: Organisation hierarchy Position hierarchy Manager/appraiser assignments Custom fields Preferences Implement robust error-handling for all LP error codes. ...

Associate Software Engineer

Hiring Organisation
X-On Health
Location
Woodbridge, Suffolk, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£35,000
develop new functionality and make non-functional improvements to our products and services. Understand business requirements and how they translate into technical design and development projects and tasks. Participate in architectural and design discussions and diagnose and troubleshoot complex technical issues Work with stakeholders to progress and report … projects and tasks Building Voice Agents: Developing and maintaining our Go-based Voice Agent API Development: Contributing to our unified AI API that acts as the gateway between our telephony products and various AI providers Tool Creation: Developing "Tools" (Function Calling) that allow LLMs to interact with ...

Junior AI Software Engineer

Hiring Organisation
X-On Health
Location
Woodbridge, Suffolk, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£35,000
develop new functionality and make non-functional improvements to our products and services. Understand business requirements and how they translate into technical design and development projects and tasks. Participate in architectural and design discussions and diagnose and troubleshoot complex technical issues Work with stakeholders to progress and report … projects and tasks Building Voice Agents: Developing and maintaining our Go-based Voice Agent API Development: Contributing to our unified AI API that acts as the gateway between our telephony products and various AI providers Tool Creation: Developing "Tools" (Function Calling) that allow LLMs to interact with ...

Senior Java Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
City of London, London, United Kingdom
successful candidate will work on an Electronic Trading Platform for the FIC business . This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in a prestigious and fast-paced environment. Specifically, experience of US treasuries and US Treasury Electronification is required … concurrency. FIC Trading Systems: Experience developing, maintaining, or supporting electronic trading platforms. Messaging Protocols: Familiarity with FIX protocol, MQ, JMS, or similar messaging solutions. API Development: Experience with RESTful and/or SOAP web services. Low Latency Programming: Understanding of techniques for minimizing latency in trading applications. Spring ...

Integration Engineer

Hiring Organisation
POWWR
Location
Manchester Area, United Kingdom
building, and maintaining custom integrations between customer systems and POWWR’s SaaS platform. Working closely with customers to understand technical requirements, data flows, and API capabilities. Developing integration components using .NET Core/C#, REST APIs, Azure Functions, messaging technologies, and related services. Troubleshooting and resolving integration issues across … reusable components. What are POWWR looking for? 6+ years of software engineering or integration engineering experience. Strong proficiency in .NET Core/C#, REST API development, and cloud‐based application development. Experience integrating external systems using REST/GraphQL APIs, message queues, webhooks, or ETL tools. Familiarity with ...

Backend Software Engineer

Hiring Organisation
Bruin Financial & Professional Services
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day
office, Tuesday–Thursday), the successful candidate will be responsible for designing, developing, and maintaining modern cloud-based systems. You will work across backend development, DevOps, and infrastructure as code, collaborating closely with global teams in Australia, the U.S., and locally in Manchester. Key Responsibilities: Backend Development (50%) Design … collaboration with Product Owners. DevOps/Cloud Operations (40%) Work with AWS to manage, optimise, and secure cloud infrastructure. Deploy and maintain services across development, testing, and production environments. Detect and prevent security threats, including account takeover attempts. Drive continuous improvement in technical standards, tools, and processes. Infrastructure ...

Senior Software Engineer Backend

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
networking and compliance. Collaborate with Agile teams to deliver high-quality, secure software at scale. Key Skills: Strong Node.js/NestJS and REST API development experience. Skilled in AWS Build and evolve backend services that support login, MFA, and client authentication Proficient with IaC, CI/CD (CloudFormation ...

Python Developer

Hiring Organisation
Insight International (UK) Ltd
Location
Sheffield, England, United Kingdom
Employment type: Contract Job Description: Python developer is responsible for building scalable automation solutions to streamline database operations. Required Skills. Hands on experience with API development using Python and FastAPI. Strong problem-solving, debugging, and analytical skills. Responsibilities: Design, develop and maintain automation solutions for databases operations … rollouts Build and Integrate API for Database Management Operations and automation workflows Troubleshoot automation issues across scripting, API s and containerized environments. Containerize and deploy application/services using Docker and Kubernetes Administration for Kubernetes Resources (Pods, Ingress, Services, Secrets, CRDs, etc) Nice to have Exposure on enhancing ...

Python Developer

Hiring Organisation
Coforge
Location
Sheffield, England, United Kingdom
Sheffield, UK. Job Description: Python developer is responsible for building scalable automation solutions to streamline database operations. Required Skills. Hands on experience with API development using Python and FastAPI. Strong problem-solving, debugging, and analytical skills. Responsibilities: Design, develop and maintain automation solutions for databases operations and rollouts … Build and Integrate API for Database Management Operations and automation workflows Troubleshoot automation issues across scripting, API s and containerized environments. Containerize and deploy application/services using Docker and Kubernetes Administration for Kubernetes Resources (Pods, Ingress, Services, Secrets, CRDs, etc) Nice to have Exposure on enhancing observability ...

SC Java Developer

Hiring Organisation
Sanderson Government and Defence
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
What You'll Work On You'll be developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands-on expertise with RESTful APIs Proficiency ...

Software Developer

Hiring Organisation
Sanderson Recruitment
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Looking For: Essential Skills Strong proficiency in .NET (C#, ASP.NET) Experience working with SQL Server Familiarity with Azure services Solid understanding of REST/API development Experience with Angular Proficiency in TypeScript, JavaScript, HTML, CSS Good understanding of Agile methodologies , including Scrum Desirable Skills Microservices architecture NServiceBus ...

Mainframe Developer with CICS Webservices

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £350 to £400 per day
week Key Skills Required Mainframes CICS Webservices Required Skills Experience working in ZOS Connect EE and DB2 REST, with extensive knowledge in CICS webservices. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON, with a comprehensive understanding … including OOP and functional programming (Java 8+). Familiarity with Spring Boot annotations, configuration, and how it simplifies Spring application setup and deployment. RESTful API development experience. Option 2: Integration & Middleware Skills Hands-on experience using DataPower appliances. Development experience using XSLT, Gateway Script, and XPath. ...

Full Stack Developer - .Net & Angular

Hiring Organisation
Hireful
Location
West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
experienced Full Stack .Net (C#) Developer, with solid experience in API development , keen to take ownership of end-to-end development, contribute to product innovation, and grow in a tech-led, agile team that genuinely values your input? Are you keen to work in a full stack … building smart APIs, delivering seamless user experiences, and solving real-world customer challenges. This is your chance to take ownership of end-to-end development, contribute to product innovation, and grow in a tech-led, agile team that genuinely values your input. CLICK APPLY and send a CV through. ...

Application Developer

Hiring Organisation
Synechron
Location
Sheffield, England, United Kingdom
passionate about cloud-native identity solutions, API development, and event-driven architectures? We're looking for a skilled Application Developer to drive secure, scalable identity and access management (IAM) workflows across Google Cloud Platform. 🔹 What You'll Do: ✅ Design and implement identity lifecycle workflows, integrating with GCP Cloud … Identity, ServiceNow, and more. ✅ Develop and secure RESTful APIs supporting provisioning, governance, and access workflows. ✅ Build event pipelines where API events publish to Pub/Sub for automation and security monitoring. ✅ Automate IAM infrastructure using Terraform, CI/CD, and best practices. ✅ Troubleshoot, collaborate, and guide teams on secure ...