Contract RESTful Job Vacancies

1 to 25 of 65 Contract RESTful Jobs

Fullstack Engineer Financial Services

London, South East, England, United Kingdom
Become
Boot, and Angular or React. Collaborate with cross-functional teams to deliver seamless end-to-end features, from user interfaces to backend services and database integration. Develop and consume RESTful APIs, contributing to our microservices-based and modular front-end architecture. Uphold high standards for code quality, performance, testing, and security. Participate actively in Agile ceremonies, code reviews, and continuous More ❯
Employment Type: Contractor
Rate: £450 - £500 per day
Posted:

Lead Fullstack Software Engineer

Manchester, Lancashire, England, United Kingdom
Become
Java, Spring Boot, and Angular. Collaborate with cross-functional teams to deliver seamless end-to-end features, from user interfaces to backend services and database integration. Develop and consume RESTful APIs, contributing to our microservices-based and modular front-end architecture. Uphold high standards for code quality, performance, testing, and security. Participate actively in Agile ceremonies, code reviews, and continuous More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Lead .NET Developer - 6 Months - Remote - Outside IR35

United Kingdom
Hybrid / WFH Options
Stealth IT Consulting Limited
cross-functional teams including Business Analysts, Product Owners, and UX Designers. Build, test, and deploy high-quality, scalable, and secure applications in line with GDS service standards . Develop RESTful APIs and microservices using .NET Core. Ensure applications meet GDS guidelines , accessibility, and security requirements. Work with DevOps teams to implement CI/CD pipelines and automated testing. Maintain high … in .NET/C# development (ideally .NET Core & .NET 6/7). Experience working on GDS projects , following Government Service Standard guidelines. Strong understanding of microservices architecture and RESTful API development . Experience with Azure/AWS cloud services . Knowledge of SQL Server and NoSQL databases (eg, CosmosDB, MongoDB). Proficiency in CI/CD, containerization (Docker/ More ❯
Employment Type: Contract
Posted:

AI Solution Architect (AI Agents, Retail / eCommerce)

Central London, London, United Kingdom
Hybrid / WFH Options
Staffworx Limited
based deployments, and integrating AI services into enterprise applications. Key Responsibilities: Architect and design AI-powered agent solutions that integrate with enterprise systems and cloud platforms. Develop and optimize RESTful and GraphQL APIs to facilitate AI-driven interactions. Utilize AWS services (Lambda, S3, API Gateway, SageMaker, DynamoDB, ECS, etc.) to deploy scalable AI solutions. Implement Full Stack JavaScript (Node.js, React.js More ❯
Employment Type: Contract, Work From Home
Posted:

Software Engineer

Sheffield, South Yorkshire, United Kingdom
Hybrid / WFH Options
Experis
of: Public Cloud. Infrastructure build and configurations of a variety of services including Compute, Storage, Networking. Linux. Relational and NoSQL databases. Integration services such as messaging and streams. Building RESTful API Services. Containerisation, Kubernetes, serverless functions. Microservices, and distributed tracing. Enterprise logging, monitoring, and alerting frameworks (e.g., ELK, Splunk, Prometheus, Grafana). Automation scripting (using scripting languages such as Terraform More ❯
Employment Type: Contract
Rate: £395 - £430/day
Posted:

Python Technical Architect

Bradford, West Yorkshire, Yorkshire, United Kingdom
LA International Computer Consultants Ltd
updated. Key Skills & Experience: * Solid experience in software development, with deep experience in Python. * Expertise in Python frameworks like Django, Flask or FastAPI. * Strong understanding of microservices architecture and RESTful APIs. * Proficient in relational and NoSQL databases (e.g., PostgreSQL, MongoDB). * Hands-on experience with cloud platforms (AWS, Azure, or GCP). * Familiarity with containerization (Docker, Kubernetes). * Knowledge of More ❯
Employment Type: Contract
Posted:

Senior Angular Developer - Shipping, Physical Inventory, Oil

London, South East, England, United Kingdom
Harvey Nash
expertise of: Building modern-web applications Modern UI design principles. i.e. Able to take initial design direction and interpret those guidelines to finalise the design through to a solution Restful API Design and development fundamentals Good SQL knowledge Test case preparation and execution EDUCATION & EXPERIENCE REQUIREMENTS 8-10 years' experience designing and developing applications both individually and as part of More ❯
Employment Type: Contractor
Rate: £600 - £700 per day
Posted:

Senior Backend Developer

London, United Kingdom
Hybrid / WFH Options
Rullion - Eon
Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage with emerging technologies and More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Senior Backend Developer

City of London, London, Farringdon, United Kingdom
Hybrid / WFH Options
Rullion - Eon
Security teams. Knowledge and Skills: * Demonstrated expertise as a Mid or Senior Software Engineer. * Proficiency in Python as your primary language, or willingness to adapt. * Hands-on experience with RESTful APIs and/or GraphQL. * Proficiency in version control tools like Git. * Sound understanding of development best practices including pair programming and TDD. * Eagerness to engage with emerging technologies and More ❯
Employment Type: Contract
Posted:

Senior Java Prossional

Glasgow, City of Glasgow, United Kingdom
Experis
performance integration solutions using MuleSoft, Camel, and RabbitMQ. Define reusable patterns and integration frameworks based on EIP (Enterprise Integration Patterns). Lead API and messaging solution designs adhering to RESTful/SOAP standards and AMQP best practices. Design and implement event-driven architectures, pub-sub models, and asynchronous message flows. Development & Implementation Build and maintain Mule flows, subflows, and message More ❯
Employment Type: Contract
Rate: £350 - £395/day
Posted:

ServiceNow Consultant - London Market, Insurance, Contract

City of London, London, United Kingdom
Hybrid / WFH Options
Hanson Lee Resourcing Ltd
of designing and implementing complex IT systems and architectures. Strong understanding of cloud platforms (e.g., AWS, Azure). Experience in applying enterprise integration strategies w.r.t ServiceNow platform. Knowledge of RESTful APIs and experience in building and consuming them using ServiceNow. In-depth knowledge of IT governance, cybersecurity, and compliance standards. Hands-on experience with Agile and DevOps methodologies. Exceptional problem More ❯
Employment Type: Contract, Work From Home
Rate: Up to £600 per day
Posted:

Senior Full Stack REACT/Java Developer Contract

Dublin, City of Dublin, Republic of Ireland
Adecco
.Proven experience building complex web applications from scratch. You will have experience with TypeScript and modern frontend build tools (e.g., Webpack, Babel). You will have a familiarity with RESTful APIs and asynchronous request handling. You will have experience with continuous integration/continuous deployment (CI/CD) pipelines.Strong understanding of version control tools (e.g., Git). Strong working experience More ❯
Employment Type: Contract
Rate: £431 - £526/day ltd company
Posted:

Full Stack JavaScript Developer - Contract

Manchester, Lancashire, England, United Kingdom
iO Associates
ll be working closely with the CTO and product team to bring the new feature to life. The stack: Frontend: Vue3, TypeScript Backend: Node.js, PostgreSQL, Stripe API, GraphQL exposure, RESTful API design Infrastructure: Docker, AWS, CI/CD Pipelines What they need from you: 5+ years of full stack JavaScript experience with strong commercial use of Vue and Node Ability More ❯
Employment Type: Contractor
Rate: £450 - £525 per day
Posted:

Python Developer

London, Farringdon, United Kingdom
Hybrid / WFH Options
Rullion - Eon
Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage with emerging technologies and More ❯
Employment Type: Contract
Posted:

Python Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Rullion Limited
Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage with emerging technologies and More ❯
Employment Type: Contract, Work From Home
Posted:

MuleSoft Application Architect

United Kingdom
LA International Computer Consultants Ltd
performance integration solutions using MuleSoft, Camel, and RabbitMQ. * Define reusable patterns and integration frameworks based on EIP (Enterprise Integration Patterns). * Lead API and messaging solution designs adhering to RESTful/SOAP standards and AMQP best practices. * Design and implement event-driven architectures, pub-sub models, and asynchronous message flows. Development & Implementation. * Build and maintain Mule flows, subflows, and message More ❯
Employment Type: Contract
Rate: £60 - £65 per hour + negotiable
Posted:

MuleSoft Application Architect

England, Abbots Langley, Hertfordshire
LA International Computer Consultants Ltd
performance integration solutions using MuleSoft, Camel, and RabbitMQ. * Define reusable patterns and integration frameworks based on EIP (Enterprise Integration Patterns). * Lead API and messaging solution designs adhering to RESTful/SOAP standards and AMQP best practices. * Design and implement event-driven architectures, pub-sub models, and asynchronous message flows. Development & Implementation. * Build and maintain Mule flows, subflows, and message More ❯
Employment Type: Contract
Rate: £60 - £65
Posted:

Senior .Net Developer Banking/Middle Office

London, South East, England, United Kingdom
Become
focus on delivering applications covering technology stacks of .NET, React, SQL Server and Azure. Key Skills & Abilities - Experience with developing web apps with ASP.Net Core (C#). - Knowledge of RESTful APIs, and microservices architecture. - Experience with relational databases and SQL - Experience of Azure DevOps is an advantage. - Proven experience of design and implementing micro-services architectures - Knowledge of financial markets More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Java Developer

Portsmouth, Hampshire, South East, United Kingdom
Yolk Recruitment
testing frameworks Write clean, maintainable, and well-documented code Work closely with internal and external stakeholders Essential Skills & Experience Java (version 8+) Spring Boot and Spring Framework (inc. Hibernate) RESTful APIs over HTTPS Microservices and distributed systems Agile development (Scrum) CI/CD pipelines Git and Jira (or similar tools) UML or SysML using Enterprise Architect or equivalent Strong communication More ❯
Employment Type: Contract
Rate: £50 - £55 per hour + INSIDE IR35
Posted:

Software Developer

Portsmouth, Hampshire, South East, United Kingdom
Belcan Technical Recruiting (UK) Ltd
stakeholders in a professional manner. Maintain awareness of compliance risks and act with integrity. Required Skills & Experience Programming: Java Core (version 8+), Spring Boot, Spring Framework, Hibernate Architecture: Microservices, RESTful APIs, Distributed Systems Design: UML/SysML (using Enterprise Architect or similar), Software Design Patterns Development Practices: Agile (Scrum), CI/CD, Automated Testing Tools: Git (Source Control), Jira (Issue More ❯
Employment Type: Contract
Rate: Up to £55 per hour
Posted:

API Integration Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Tenth Revolution Group
work will make a direct impact by enabling clients to use automated HR and Payroll processes efficiently. Responsibilities and Duties: API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. … workshops, contribute technical insight, and support user acceptance testing Deliver training, handover materials, and ongoing technical documentation.Share best practices and contribute to continuous improvement. About you: Experienced in developing RESTful APIs and implementing OAuth 2.0 authentication. Skilled in Python (preferably FastAPI), Git, SQL, and cloud services like Microsoft Azure. Familiar with technologies such as: Airbyte, Rivery and Hevo Familiar with More ❯
Employment Type: Contractor
Rate: £300 - £400 per day
Posted:

API Integration Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Tenth Revolution Group
work will make a direct impact by enabling clients to use automated HR and Payroll processes efficiently. Responsibilities and Duties: API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. … workshops, contribute technical insight, and support user acceptance testing Deliver training, handover materials, and ongoing technical documentation.Share best practices and contribute to continuous improvement. About you: Experienced in developing RESTful APIs and implementing OAuth 2.0 authentication. Skilled in Python (preferably FastAPI), Git, SQL, and cloud services like Microsoft Azure. Familiar with technologies such as: Airbyte, Rivery and Hevo Familiar with More ❯
Employment Type: Contract
Rate: £300 - £400/day
Posted:

Java Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Lorien
and Hibernate Experience with Apache Kafka Strong knowledge with Relational and Non-Relational Databases Hands on experience working with event driven architecture and real time data processing. Experience with RESTful APIs and message queues (IBM MQ/Rabbit MQ) . Proficiency with unit testing frameworks, Integration testing and CI CD pipelines Familiarity with security best practices Git, TeamCity, Open API More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Front-End App Developer - Glasgow

Glasgow, Lanarkshire, Scotland, United Kingdom
Lorien
as possible: Experience of modern JavaScript practices and industry standards regarding front-end technologies Commercial experience with React, Typescript, NodeJS, Redux, HTML5, CSS3, Webpack, React Testing Library Experience with RESTful APIs Experience writing unit and integration tests Experience with CI/CD (e.g. Jenkins), including build and package management tools General knowledge - Experience in most or all of the following More ❯
Employment Type: Contractor
Rate: £400 - £490 per day
Posted:

Senior Full-Stack Ruby Developer

London, United Kingdom
Hybrid / WFH Options
SR2
Experience: Extensive experience in building complex web applications using Ruby on Rails. Particularly beneficial if you have experience working on SaaS platforms. Deep understanding of API integrations , such as RESTful APIs, OAuth, and webhook. Will also require extensive knowledge of GraphQL and ApolloDB Confident in background job processing (Sidekiq/Resque) and asynchronous services. Exposure to containerisation such as Docker More ❯
Employment Type: Contract
Rate: £600/day
Posted:
RESTful
10th Percentile
£325
25th Percentile
£400
Median
£475
75th Percentile
£575
90th Percentile
£675