1 to 25 of 97 Contract REST Jobs

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 ...

Java Full stack Developer

Hiring Organisation
NEEV LIMITED
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Contract
Contract Rate
£400 per day
experience with Java Microservices development Key Skills Java, Spring Boot, Microservices, Kafka, Kubernetes, API Authentication, OAuth2, JWT, Observability, Prometheus, Grafana, Splunk, Bean Management, SQL, REST APIs, CI/CD, Docker, Cloud Technologies. ...

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 ...

Java Developer

Hiring Organisation
GTC Recruitment
Location
Birmingham, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
professionals to turn complex requirements into reliable, production-ready software. What You’ll Be Working With Java & Spring Boot AWS Apache Kafka MongoDB Microservices & REST APIs Automated testing – JUnit & integration testing Git & version control CI/CD Agile delivery and modern engineering practices Key Responsibilities Design, develop and maintain high ...

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 ...

Java Developer

Hiring Organisation
Halian Technology Limited
Location
Manchester, North West, United Kingdom
Employment Type
Contract
large-scale systems using modern Java technologies, microservices architecture and AWS cloud services within a highly collaborative Agile environment. Essential Skills Java Spring Boot REST APIs Microservices AWS EC2 Lambda CloudWatch Networking Awareness TDD (Test Driven Development) SQL Databases NoSQL Databases MongoDB PostgreSQL Nice to Have Node.js JavaScript/TypeScript ...

Senior Java Developer

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £550 per day
development tools where appropriate to improve analysis, design, development, testing and code quality. Essential Skills & Experience Strong commercial experience with Java Extensive experience developing REST APIs using Spring Boot Experience writing unit tests using JUnit Strong understanding of JSON structures and data formats Hands-on experience with Kubernetes , including: Containerising ...

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
Shirley, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 430 Daily
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
Location
London, Bishopsgate, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £750/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 ...

Fullstack Developer

Hiring Organisation
Hays
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Architects and other Developers within an Agile delivery environment. Essential Skills & Experience Strong commercial experience with C# and .NET/.NET Core. Experience developing REST APIs and backend services. Good experience with Microsoft Azure. Experience with Azure Functions. Experience with Azure Service Bus. Experience building and consuming APIs. Experience working ...

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 ...

Senior Python Developer

Hiring Organisation
Henderson Scott
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £484 per day + PAYE + holiday pay
background with hands-on experience of Pydantic and FastAPI for data modelling, validation, schema design, serialisation and API development. Practical experience with JSON, YAML, REST APIs and SQL in data-heavy environments. Background in metadata and logical data modelling, taxonomies, lineage, data quality, business glossaries, catalogues and governance workflow design. ...

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 ...

Software Developer

Hiring Organisation
Line Up Aviation
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£41.10/hour
with sprint planning. Requirements : Java Core (version 8+) Spring Boot, Spring Framework - Good knowledge of Developing in Spring with Hibernate Good Knowledge of developing REST within HTTPS Experience of developing within a microservice architecture Web Services using RESTful APIs Distributed systems Knowledge and use of software design patterns Agile Development ...