20 of 20 Contract RESTful Jobs in London

sector Active Security Clearance (SC) Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries Spring Boot: Expert in building RESTful APIs and microservices AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational More ❯

sector Active Security Clearance (SC) Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries Spring Boot: Expert in building RESTful APIs and microservices AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational More ❯

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 ❯

GitHub Actions). Familiarity with containerization and orchestration (e.g., Docker, Kubernetes) is a plus. Proficiency with Linux-based systems , server configuration, and deployment automation. Understanding of modern API design , RESTful services, and microservices architecture. Ability to write clean, maintainable, and well-tested code following best practices. Excellent problem-solving skills, attention to detail, and a proactive approach to challenges. Strong More ❯

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 ❯

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 ❯

Requirements Experience JavaScript, React, Node.js and TypeScript. Strong experience in writing reusable, testable components, within React. Proficiency in modern JavaScript (ES6) and JSX syntax. Experience with building and maintaining RESTful API’s using Node.js. Ability to write optimised SQL queries for data retrieval, manipulation and management. Experience with developing accessible, responsive layouts using componentised CSS/SASS. Working practices such More ❯

leadership and mentoring Requirements 5+ years of experience with Ruby/Rails in production environments Exposure to DevOps practices (CI/CD, Docker, AWS, Terraform, etc.) Strong understanding of RESTful APIs, background jobs, and database optimization Experience working in agile teams and mentoring developers Excellent communication and problem-solving skills Ability to work independently and take initiative Nice to Have More ❯

leadership and mentoring Requirements 5+ years of experience with Ruby/Rails in production environments Exposure to DevOps practices (CI/CD, Docker, AWS, Terraform, etc.) Strong understanding of RESTful APIs, background jobs, and database optimization Experience working in agile teams and mentoring developers Excellent communication and problem-solving skills Ability to work independently and take initiative Nice to Have More ❯

/Django REST Framework work. Solid relational database experience, ideally Postgres (schema design, query optimisation). Test-driven development practices and experience with pytest or equivalent. Experience working with RESTful APIs and/or GraphQL. Familiarity with containerisation and cloud deployment (Docker, Kubernetes/EKS/GKE or equivalent). Version control with Git and experience of CI/CD More ❯

commercial PHP development experience (7.x/8.x) Expertise with frameworks such as Laravel or Symfony Solid understanding of MySQL/MariaDB and database design principles Experience building and integrating RESTful APIs Familiarity with front-end technologies (JavaScript, HTML5, CSS3) Exposure to CI/CD pipelines, Git, Docker, or similar tools Strong problem-solving skills and ability to work independently in More ❯

Science, Engineering, or a related field. Proven experience in commodities trading , especially with derivatives and platforms like ICE , CME , NASDAQ , Trayport , or TT . Deep knowledge of C# .NET , RESTful services , and microservice architecture . Hands-on experience with FIX messaging , XML , AMQ , and ideally nHibernate , OData , and TDD . Familiarity with Agile tools like JIRA , Confluence , and Crucible . More ❯

Science, Engineering, or a related field. Proven experience in commodities trading , especially with derivatives and platforms like ICE , CME , NASDAQ , Trayport , or TT . Deep knowledge of C# .NET , RESTful services , and microservice architecture . Hands-on experience with FIX messaging , XML , AMQ , and ideally nHibernate , OData , and TDD . Familiarity with Agile tools like JIRA , Confluence , and Crucible . More ❯

Ping Identity and/or ForgeRock technologies. Experience with IAM integrations in financial systems and cloud platforms (e.g., Azure AD, AWS). Knowledge of scripting (e.g., PowerShell, Python) and RESTful APIs. Experience with identity lifecycle automation and governance tools. More ❯

Jetpack Compose and/or traditional XML-based layouts. Strong knowledge of asynchronous programming using Jetpack compose, RxJava, Flow or Coroutines. Strong experience in integrating and securing GraphQL/RESTful APIs. Proficient in unit testing, instrumentation testing, and frameworks like Junit, Mockito, Espresso. Familiarity with Google Play Console, app signing, release pipeline, crash analytics, and A/B testing. Hands More ❯

/or Android). Proficiency in Swift (iOS) and/or Kotlin/Java (Android) . Experience with Xcode, Android Studio, UIKit, Jetpack, and mobile SDKs . Knowledge of RESTful APIs, WebSockets, and third-party libraries . Familiarity with mobile UI/UX best practices . Understanding of Agile/Scrum methodologies . Bonus if you have experience with: Cross More ❯

Observer, Factory etc.) and architecture patterns (MVVM, VIPER, Clean Architecture) Proficient in iOS SDKs, including Core Data, Core Animation, Push Notifications, etc. Experience with GraphQL integration and/or RESTful API design and consumption. Experience with analytics tools like Firebase, Adobe Analytics or similar. Knowledge of mobile security best practices including keychain access, obfuscation, SSL pinning. Experience integrating Apple Pay More ❯

insight Background in project management, project co-ordination, enterprise architecture. Experience as a Project Manager/Scrum master on agile solution deliveries, especially delivery of enterprise integration solutions (e.g. RESTful APIs, SOAP web services etc.) Strong agile delivery skills (Scrum), ideally with some scaled agile experience and ability to work in an environment with mixed delivery methodologies (i.e. traditional waterfall More ❯

of CICS Web Services. Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio. Proficient with SOAP, WSDL, and JSON; comprehensive understanding of SOA and RESTful APIs. Experience with code repositories, bug tracking tools, and wikis (e.g., GitLab, Endevor, JIRA, Confluence). Knowledge of security integration patterns such as Basic Authentication, Client Authentication (mTLS), and OAuth … Skills/Knowledge/Experience: Java skill set. Strong foundation in Java, including OOP and functional programming (Java 8+). Familiarity with Spring Boot annotations, configuration, and deployment simplification. RESTful API development experience. Or/and Hands-on experience using DataPower appliances. Development experience using XSLT, Gateway Script, and XPath. More ❯

and extensive knowledge in CICS webservices Development experience using FileAid, Xpeditor, IBM explorer for ZOS, Visual studio Proficient with SOAP, WSDL and JSON. A comprehensive understanding of SOA and Restful APIs Experience of working with code repositories, bug tracking tools and wikis Tools - Gitlab, Endevor, JIRA, Confluence Knowledge of different security integration patterns such as basic authentication, client authentication (MATLS … Java skill set Strong foundation in Java including OOP, functional programming (java 8+) Familiarity with Spring Boot's annotations, configuration, and how it simplifies Spring application setup and deployment. Restful API development experience Or/and Hands-on experience using DataPower appliances Development experience using XSLT, Gateway Script and XPath More ❯