17 of 17 Contract API Development Jobs in England

DevX POD Lead (Kotlin/Java)

Hiring Organisation
Experis
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£480 - £529/day
where needed. Be capable of designing, building and delivering an in-house solution end to end from shaping the initial idea and requirements, through development, testing and ongoing support. Coach and uplift the team in development best practice: clean code, test driven development, secure coding, and maintainable … leadership). Proven ability to refine and decompose work (features into implementable stories), manage dependencies, and remove technical blockers. Strong experience in microservices and API development, and asynchronous messaging technologies such as Kafka or similar event-driven platforms. Experience in at least two or three of the following ...

Django Developer

Hiring Organisation
Morgan Hunt Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £850 per day
technical leadership for the design, build, productionisation and ongoing operation of secure Django-based applications and supporting infrastructure. The role will establish the development processes, coding standards, API standards, security approach, RBAC model and application architecture needed for repeatable delivery. The developer will bring extensive experience in productionising … securing Django applications, embedding automated testing, CI/CD and agile development practices, and creating documentation to support Technical Design Authority (TDA), security assurance and operational handover. Responsibilities: · Lead the architecture, development and deployment of secure Django applications and associated infrastructure in Azure.· Define and embed Django development ...

SC Cleared Senior Infrastructure Engineer

Hiring Organisation
TEKsystems
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 650 Daily
system administration and platform engineering Work with strong awareness of networking, security, and architecture best practices Data Engineering & Application Support (Secondary Focus) Support the development of data platforms and pipelines Enable data ingestion, processing, and analytics capabilities Collaborate with data scientists and engineering teams Contribute to API development … cloud and infrastructure engineering Proven ability with automation, Scripting, and system administration Experience with data engineering concepts (SQL, Python; Spark advantageous) Exposure to API development and data-driven applications Demonstrated Experience working in agile, fast-paced delivery environments A builder mindset - able to develop solutions, not just design ...

POD Lead (Kotlin/Java)

Hiring Organisation
Square One Resources
Location
Sheffield, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 490 - 515 Daily
leadership). Proven ability to refine and decompose work (features into implementable stories), manage dependencies, and remove technical blockers. Strong experience in microservices and API development, and asynchronous messaging technologies such as Kafka or similar event-driven platforms. Experience in at least two or three of the following … API development, SQL/databases, HTML/JavaScript. Strong technical and analytical troubleshooting skills, including production support mindset. Experience with standard developer collaboration tools: GitHub/Bitbucket, Jira, Confluence. Excellent written and spoken English, with the ability to communicate technical decisions clearly. Good interpersonal skills and a collaborative ...

Full Stack Software Engineer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 Daily
within an agile delivery team, building and enhancing modern, cloud-native applications used by thousands of end users. This role requires strong full-stack development expertise across .NET, Vue.js and Azure, alongside previous experience delivering solutions within Government, NHS, or wider public sector environments. Key Responsibilities Design, develop … security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure Functions Azure ...

Full Stack Software Engineer

Hiring Organisation
Brio Digital
Location
London, Baker Street, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
within an agile delivery team, building and enhancing modern, cloud-native applications used by thousands of end users. This role requires strong full-stack development expertise across .NET, Vue.js and Azure, alongside previous experience delivering solutions within Government, NHS, or wider public sector environments. Key Responsibilities Design, develop … security, performance and compliance standards Essential Skills & Experience Strong commercial experience with: C#/.NET Core/.NET 6+ Vue.js JavaScript/TypeScript REST API development and integration SQL Server and relational databases Hands-on experience with Microsoft Azure, including services such as: App Services Azure Functions Azure ...

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
Product Catalogue, CRM (Salesforce), Billing, Service Orchestration, Inventory, Service Assurance - understanding data models, system processes and integration patterns at implementation level - Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks - Lead-to-Cash (L2C) and Order … Cash (O2C) solutions in Tier-1 telecom operator environments - TMF standards: Product Ordering (TMF641), Service Ordering, Service Activation, Service Inventory (TMF638) API Development & Integration - Strong expertise in API lifecycle design using OpenAPI specifications (OAS) - can read and write API specs - Hands-on with TMF/ ...

Senior Integration Engineer

Hiring Organisation
ifndautoparts
Location
Towcester, Northamptonshire, East Midlands, United Kingdom
Employment Type
Contract, Work From Home
ifndautoparts is a family-owned and founder-led company. We operate with a lean, highly collaborative structure and work closely with specialist contractors and development partners to deliver projects and scale the platform. As we expand our business seller network, we are looking for an experienced Senior Integration Engineer … helping business sellers connect and synchronise their inventory with the ifndautoparts marketplace. You will work directly with the founders, onboarding team, and external development partners to help shape the future of seller integrations across the platform. The Role As our Senior Integration Engineer, you will be responsible for designing ...

Java Software Engineer

Hiring Organisation
Sanderson Recruitment
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day + Inside IR-35
working on backend services hosted in Azure. The role focuses on building and supporting Java applications and APIs, using VS Code as a primary development environment. You'll work closely with other engineers across backend, frontend, and DevOps, contributing to cloud-based systems. About the role Java backend development … with frontend, QA and DevOps teams Participate in code reviews and technical discussions Required skills Strong commercial Java experience Spring/Spring Boot REST API development Azure experience (App Services, AKS, or similar) VS Code for day-to-day development Git and version control Experience with relational ...

SC Cleared Node.js Developer

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £560 per day + Inside IR-35
maintainable code Working with shared/common government tech stacks (Node.js, PostgreSQL, Redis) Investigating and resolving technical issues across the stack Applying secure development practices, including OWASP principles and vulnerability management Collaborating with stakeholders and communicating technical concepts clearly Tech stack includes: Node.js, HAPI (web framework) API development … DevOps, Jenkins, GitHub Actions) Jira and Azure DevOps for workflow management What we're looking for: Active SC Clearance (essential) Strong experience with Node.js development in production environments Ability to communicate with both technical and non-technical stakeholders Experience breaking down work, refining backlog items, and defining acceptance criteria ...

Software Engineer

Hiring Organisation
Brio Digital
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500/day
supporting a major NHS digital transformation programme and are looking for three experienced Full Stack .NET Developers. You'll be working on the development and enhancement of critical healthcare applications, helping deliver scalable, secure, cloud-native solutions that directly support NHS services and patient outcomes. This is an excellent …/CD pipelines and modern DevOps practices Essential Skills & Experience Backend Strong commercial experience with: C# .NET/.NET Core ASP.NET Core REST API development SQL Server Frontend Strong experience with: React TypeScript JavaScript HTML5 CSS3 Cloud & DevOps Strong Azure experience CI/CD pipelines Infrastructure and deployment ...

AI Engineer (SC Cleared)

Hiring Organisation
Morgan Hunt Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
using trusted data sources Creating, testing and refining prompts, workflows and AI configurations to maximise accuracy and performance Applying solid software engineering practices including API development, version control, CI/CD and automated testing Monitoring and optimising AI systems in production, ensuring performance, cost control, security and compliance ...

Automation Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
technical audiences Support adoption and continual improvement of automation best practices Essential Skills & Experience Strong knowledge of JavaScript (particularly for rules engine API development) Understanding of SQL for database queries Experience working with JSON data structures Rudimentary knowledge of Java , particularly for data type definitions within ODM tools ...

SC Cleared Tech Lead

Hiring Organisation
ARM
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£585 - £630/day Inside IR35
initial 6 month contract. The selected candidate MUST HAVE CQRS experience and event-driven-architecture. Acts as the technical lead for backend development within a pod, specialising in event-driven architecture and CQRS-based systems. Core Skills:CQRS (non-negotiable), Event Sourcing, .NET/Java/Python, Azure Service … API Development, Distributed Systems Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more ...

.Net API Developer

Hiring Organisation
Damia Group Ltd
Location
Skipton, North Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450 per day
.Net API Developer - 3 days per week in Skipton - Circa £450 per day Inside ir35 - 3 months My client is a global leading consultancy. They are on the hunt for a .NET Developer to join a financial client of theirs. Responsibilities: Maintained and enhanced legacy .NET applications (ASP.NET, .NET … application modernisation initiatives by refactoring legacy components, improving code quality, and contributing to migration planning for newer .NET technologies and architectures. Skills: .NET Integration Development Test automation .Net API Developer - 3 days per week in Skipton - Circa £450 per day Inside ir35 - 3 months Damia Group Limited acts ...

Python Developer

Hiring Organisation
Teksystems
Location
Bristol, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
Title: Python Fast API Developer - Onsite in Bristol 2/3 days per week Job Description This role focuses on designing and developing robust Python-based backend applications and services, with a strong emphasis on REST API design and implementation using FastAPI. You will work with Pydantic … quality, maintainable, and well-tested code. The position requires close collaboration with a diverse team to deliver scalable, reliable solutions and to continuously improve development and release processes. Responsibilities Design and develop Python-based applications and backend services. Build, document, and maintain REST APIs using FastAPI, ensuring secure ...

.Net API Developer

Hiring Organisation
Damia Group Ltd
Location
Skipton, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 450 Daily
.Net API Developer - 3 days per week in Skipton - Circa £450 per day Inside ir35 - 3 months My client is a global leading consultancy. They are on the hunt for a .NET Developer to join a financial client of theirs. Responsibilities: Maintained and enhanced legacy click apply for full ...