1 to 25 of 90 Contract REST Jobs in England

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Euston, Norfolk, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 - 475 Daily
within a mature production database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Shirley, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 - 475 Daily
within a mature production database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines ...

C# Developer

Hiring Organisation
CEI England Limited T/A CEI GB
Location
Isleworth, London, United Kingdom
Employment Type
Contract
Contract Rate
£380 per day
Java and/or C# (experience in both is highly desirable). Strong frontend development experience with ReactJS . Proven experience building and supporting REST APIs and microservices . Experience working with relational and NoSQL databases, particularly Oracle and Couchbase . Experience with messaging and event-driven technologies such ...

Dynamics 365 CE Developer

Hiring Organisation
Amtis Professional Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£400 - 500 per day
HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST APIs and integration patterns Secure application development Unit testing frameworks SOLID principles and software design patterns Desirable Experience Healthcare or NHS environments Azure Health Data ...

Fullstack Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£50 - £55/hour Inside IR35 via Umbrella
TypeScript, HTML/CSS, and frameworks like React or Vue.js. Backend: Hands-on expertise with Java or Java-based frameworks and building/consuming REST or GraphQL APIs. Agentic AI: Direct experience implementing software features with Agentic AI workflows and integrating end-user AI solutions. Cloud Infrastructure: Hands-on skill ...

Senior Software Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
tooling. Support the continuous improvement of platform reliability, scalability and performance. Required Skills & Experience Strong commercial Experience developing applications in Java . Experience building REST APIs and microservices. Strong understanding of SQL and relational databases. Experience working within Agile delivery teams. Proficiency with development tools such as GitHub, Bitbucket, Jira ...

Angular Developer, Hybrid

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £350 per day + Hybrid
using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest Experience using Claude Code or similar ...

Principal Developer

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £600 per day + Inside IR-35
documentation. Supporting the continuous improvement of engineering capability and delivery processes. Essential Skills Java & Software Engineering Strong commercial Java development experience. Spring Boot. Maven. REST and SOAP services. Experience delivering large-scale enterprise systems handling high transaction volumes. Strong understanding of software engineering best practices and modern development approaches. ...

Senior Java Architect - Payments

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
knowledge of microservices architecture and distributed systems Experience designing event-driven solutions using Kafka or similar messaging technologies Strong understanding of API-first architecture, REST services, and enterprise integration patterns Experience working with cloud-native platforms and containerised environments Exposure to AWS, Azure, Kubernetes, Docker, and CI/CD pipelines ...

DevOps Engineer - SC Clear

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day £550 per day via UMB
SageMaker Python scripting and automation Container orchestration platforms Infrastructure security and hardening Cloud networking and connectivity Application Support Knowledge C# .NET JavaScript React REST APIs Microservices architecture COTS Product Experience Supporting Commercial Off-The-Shelf products within secure environments Troubleshooting intelligence, analytical or partner-provided systems Exposure to SOLAR ...

Lead Azure Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £550/day
Significant experience in Senior Lead or Lead Engineer roles delivering and operating production systems. Strong hands-on engineering background in Java, including Spring Boot, REST APIs, testing strategies, and performance tuning. Strong hands-on experience with Python for service development and automation, preferably using FastAPI or Flask. Proven experience building ...

Golang Engineer

Hiring Organisation
Talent-Relay Limited
Location
Burgess Hill, West Sussex, South East, United Kingdom
Employment Type
Contract
Contract Rate
£67,832
Golang Engineer within a commercial environment. Design, develop, test and maintain backend applications using Golang . Build and enhance scalable, resilient microservices and REST APIs . Develop solutions supporting high-volume customer-facing applications. Work with messaging technologies such as Kafka/RabbitMQ and asynchronous services. Contribute to the migration ...

Automation Application Developer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
standards. Application Development & Integration Develop supporting applications, utilities and services using C#/.NET. Build and maintain integrations with internal and external platforms using REST APIs, web services and message-based interfaces. Design and develop SQL-based data processing, reporting and automation capabilities. Work with SQL Server and Oracle databases ...

Python Developer

Hiring Organisation
Synergize Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Contract
experience AWS Cloud Experience working with AWS services and AWS SDKs, particularly Python/boto3. Experience with Kubernetes, GIT, CI/CD Experience developing REST APIs, backend services or automation tooling Experience with HashiCorp Vault Experience with LDAP/Active Directory Experience working on large-scale public-sector technology programmes ...

Full Stack Java Developer

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £500 per day + PAYE holiday
accelerate development Contribute to continuous improvement and engineering best practice What we're looking for Strong commercial Java development experience Spring Boot and REST API development Object Oriented Design and Design Patterns SQL and relational database experience Angular, TypeScript, HTML and CSS (desirable) JUnit, BDD or automated testing frameworks Linux ...

Technical Architect

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800/day
Node.js Strong hands-on TypeScript and Node.js development Ability to read, debug, review and write production-quality TypeScript API, integration service and serverless development REST API and third-party SaaS integrations Commercetools SDK experience highly desirable Microsoft Azure Strong experience supporting cloud-native applications on Azure Hands-on Azure Functions ...

Senior Java Developer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Solihull, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day contract Outside IR35
Skills & Experience Technical Skills 8+ years of Java development experience. Strong experience with Java 17+. Spring Boot. Spring Data JPA/Hibernate. Microservices architecture. REST API development and integration. PostgreSQL or similar relational database technologies. Docker containerisation. AWS cloud platforms and services. Jenkins CI/CD pipelines. Maven. JUnit ...

SC Cleared Senior Azure DevSec Engineer

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - 750 per day + Inside IR35
security within regulated or secure environments. Azure networking, DNS, certificates and connectivity management. Production-grade CI/CD implementation. Python development and REST API integration. Git-based development and infrastructure management. Logging, monitoring, secrets management and operational support. Strong documentation and stakeholder communication skills. Apply now to speak with VIQU ...

Security Engineer IAM Financial Services London

Hiring Organisation
TELSTRA Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 Daily
Proficiency in Python, Go or Java Proficiency in unit testing frameworks such as Behave, pytest or Junit Proficiency in developing and securing SOAP and REST based web service APIs Experience in DevOps and agile methodologies and automated solution delivery and testing through CI/CD pipelines The Role: Collaborate with ...

Security Engineer IAM

Hiring Organisation
Telstra Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400/day UMBRELLA ONLY
Proficiency in Python, Go or Java Proficiency in unit testing frameworks such as Behave, pytest or Junit Proficiency in developing and securing SOAP and REST based web service APIs Experience in DevOps and agile methodologies and automated solution delivery and testing through CI/CD pipelines The Role: Collaborate with ...

x2 D365 CE Developers

Hiring Organisation
Experis
Location
City, Derby, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Apps, Function Apps and Service Bus API Management, Storage Accounts, App Insights or Key Vault Azure DevOps, pipelines, repos and releases Git source control REST APIs, messaging and integration patterns Secure development practices, including OAuth and API security Useful additional experience Infrastructure as Code, such as Bicep, Terraform ...

Senior C# Engineer .NET 9/10, AWS Lambda, SQS, SNS Outside IR35

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
What Youll Bring: Senior/Staff-level backend mastery in C# and .NET 9/10 , with the ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless engineering: Lambda-first mindset, hands-on experience with API Gateway, SQS, Step Functions, EventBridge and IAM. Deep ...

Software Developer

Hiring Organisation
Genesis Employment Services Ltd
Location
Coventry, West Midlands (County), United Kingdom
Employment Type
Permanent, Contract, Temporary
Salary
£40000 - £60000/annum
using React, Next.js or a similar modern framework. Experience with back-end technologies such as Node.js, Python, PHP, .NET or equivalent. Strong understanding of REST APIs, integrations, webhooks and third-party software connections. Experience working with databases such as PostgreSQL, MySQL, MongoDB, Supabase or Firebase. Experience implementing user authentication, permissions ...

FullStack Developer

Hiring Organisation
DNS Info Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
strong expertise in Python and React.js to design, develop, and maintain scalable web applications. The ideal candidate should have hands-on experience building microservices, REST APIs, cloud-native applications, and modern frontend solutions. Key Responsibilities Design, develop, and maintain web applications using Python and React. Build scalable RESTful APIs … within Agile/Scrum development environments. Troubleshoot and resolve production issues. Required Skills Backend Strong experience with Python Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5, CSS3 Redux, React Hooks ...

Python Developer

Hiring Organisation
NEEV LIMITED
Location
London, United Kingdom
Employment Type
Contract
security of backend systems. Databricks & Data Engineering Develop ETL pipelines and workflows using PySpark on Databricks. Work with Delta Lake, Unity Catalog, and Databricks REST APIs. Optimize queries and pipelines for cost efficiency in cloud environments (Azure/AWS). SQL Database Management Write and optimize complex SQL queries. Manage ...