14 of 14 Contract API Development Jobs in England

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £525 per day + Inside IR-35
building and enhancing modern applications, APIs, and cloud-native services, whilst mentoring developers and promoting engineering best practice. Key Responsibilities Lead the design and development of robust, scalable software solutions Drive technical decision-making and provide guidance to development teams Develop and maintain RESTful APIs and microservices Build … quality, automated testing, and CI/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest ...

IdAM Application Developer

Hiring Organisation
Guidant Global
Location
Cheltenham, Gloucestershire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day
Contract Type: Contract The Opportunity We are looking for a talented IdAM Application Developer to join our growing team and support the development, deployment, and operation of critical Identity and Access Management (IdAM) and data processing solutions. This is an exciting opportunity to work across a modern technology stack … looking for candidates with experience in: Python development. JavaScript development. Linux administration experience, particularly Red Hat Enterprise Linux (RHEL) or CentOS. Application development and deployment in enterprise environments. Troubleshooting and supporting applications in production. Working collaboratively within Agile or DevOps teams. Strong analytical, problem-solving, and communication skills. Desirable ...

Contract Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
Guildford, Surrey, United Kingdom
Employment Type
Contract
Duration: 3 months IR35 Status: Outside Our client requires an experienced contract Full Stack .NET Developer to support an established organisation with the ongoing development and maintenance of a enterprise business-critical application. This is a hands-on contract opportunity, ideal for a developer who is comfortable working within … Work with existing codebases, ensuring changes are maintainable and minimise regression risks. Support application testing, bug fixing and controlled releases. Collaborate with the existing development team to deliver requirements efficiently. Provide technical support and troubleshooting for live application issues. Essential Skills & Experience Strong commercial development experience with C# ...

AI Platform Engineer (Sharepoint, OpenAI)

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £480/day £480 p/d Inside IR35
ready solutions including testing, CI/CD, logging and documentation. - Provide technical leadership and mentorship to a junior engineer. Essential Skills & Experience - MCP server development and AI agent tooling - Azure OpenAI, Azure AI Search, RAG and prompt engineering - SharePoint Online and Microsoft Graph API - Hybrid semantic/vector … search - Enterprise API development and document processing - Azure (Functions and/or Container Apps) - Entra ID and OAuth/OIDC- CI/CD, testing and production support - Software engineering experience, ideally using Python and/or C#/.NET Desirable Skills - Microsoft 365 Copilot - Microsoft Purview - Enterprise knowledge ...

Azure Integration Engineer

Hiring Organisation
Real
Location
Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500/day
delivering enterprise-scale integration solutions. The individual should have extensive hands-on experience with Azure Integration Services, including Logic Apps, Azure Functions, Service Bus, API Management, and REST APIs, alongside a deep understanding of integration patterns and system-to-system connectivity. Key skills required include: * Azure Integration Services (Logic … Apps, Functions, Service Bus, Event Grid, API Management) * Enterprise integration architecture and design * API development, management and integration * System-to-system integration across complex application estates * Azure-native solution design and implementation * DevOps and CI/CD pipelines for automated deployment and release management * Strong troubleshooting ...

Infrastructure Python Developer

Hiring Organisation
Experis
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £402/day
/2026 Rate £402 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, APIs, 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 with ...

Scala Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £590/day
looking for an experienced Scala Developer to support critical government technology services and high-priority national infrastructure projects. Key skills required: Strong commercial Scala development experience Functional programming principles Microservices and API development Play Framework experience desirable Agile delivery and live service support If this Scala Developer ...

Java Developer (Kotlin or Neo4j)

Hiring Organisation
GCS
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £575/day
Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in API development, SQL/databases, HTML/Javascript Excellent writing skills and attention to detail in code Proactive person who will not wait to be told what to do next or be unblocked … collaboration Tools: Github/Bitbucket, Jira, Confluence, etc The Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls. The candidate would be working on Kotlin and Java ...

Full Stack Developer

Hiring Organisation
MJA (London) Ltd
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
consumers, topics, partitions and consumer groups Cloud: AWS application deployment and support DevOps: CI/CD pipeline implementation and automation Containers: Docker APIs: RESTful API design and development using C# with Open API standard Source Control: GitHub and Azure DevOps Production Engineering: Troubleshooting, monitoring, logging and performance … optimization Highly Desirable Amazon MSK or managed Kafka experience AWS EKS/ECS Terraform/AWS CloudFormation AWS Lambda, API Gateway, SQS, SNS and EventBridge Redis and distributed caching CloudWatch, ELK/OpenSearch, Datadog, Prometheus, Grafana or Splunk OAuth 2.0/JWT and API security AWS certification Experience ...

Full Stack Developer

Hiring Organisation
MJA (London) Ltd
Location
EC3, Broad Street, Greater London, United Kingdom
Employment Type
Contract
consumers, topics, partitions and consumer groups Cloud: AWS application deployment and support DevOps: CI/CD pipeline implementation and automation Containers: Docker APIs: RESTful API design and development using C# with Open API standard Source Control: GitHub and Azure DevOps Production Engineering: Troubleshooting, monitoring, logging and performance … optimization Highly Desirable Amazon MSK or managed Kafka experience AWS EKS/ECS Terraform/AWS CloudFormation AWS Lambda, API Gateway, SQS, SNS and EventBridge Redis and distributed caching CloudWatch, ELK/OpenSearch, Datadog, Prometheus, Grafana or Splunk OAuth 2.0/JWT and API security AWS certification Experience ...

Lead Full Stack Developer (React & C# .NET)

Hiring Organisation
TXP
Location
City, Birmingham, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 500 Daily
experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design … rebuilding, and greenfield UX. Essential Skills & Experience Extensive commercial experience as a Full Stack Developer . Strong expertise in React and modern front-end development practices. Strong experience with C#/.NET and back-end API development. Experience designing and developing enterprise-grade applications. Proven experience working ...

Lead Full Stack Developer (React & C# .NET)

Hiring Organisation
TXP
Location
Birmingham, West Midlands, West Midlands (County), United Kingdom
Employment Type
Contract, Temporary
Salary
£450 - £500/day Outside IR35, Remote work
experience. This is a full stack role with a Front End bias. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design … rebuilding, and greenfield UX. Essential Skills & Experience Extensive commercial experience as a Full Stack Developer . Strong expertise in React and modern front-end development practices. Strong experience with C#/.NET and back-end API development. Experience designing and developing enterprise-grade applications. Proven experience working ...

React Technical Lead

Hiring Organisation
TXP
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £500 per day + Outside IR35, Remote work
will need very strong React skills with recent .Net C# experience also. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design … build - there are existing components that needs rebuilding, and greenfield UX. Essential Skills & Experience Strong Front end/React expertise in modern front-end development practices. Experience as a Full Stack Developer - also need strong experience with C#/.NET and back-end API development. Experience designing ...

React Technical Lead

Hiring Organisation
TXP
Location
Birmingham, West Midlands, West Midlands (County), United Kingdom
Employment Type
Contract, Temporary
Salary
£500/day Outside IR35, Remote work
will need very strong React skills with recent .Net C# experience also. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design … build - there are existing components that needs rebuilding, and greenfield UX. Essential Skills & Experience Strong Front end/React expertise in modern front-end development practices. Experience as a Full Stack Developer - also need strong experience with C#/.NET and back-end API development. Experience designing ...