1 to 25 of 51 Permanent REST Jobs in the City of London

solid understanding of the software development lifecycle (SDLC). Technical experience with OOAD, SOA, Java, J2EE, Spring, React.js, Node JS, Hibernate, SOAP/REST web services, Spring security, SpringBoot, and AMQP/RabbitMQ. Experience with application servers (Jboss/WebSphere). Experience in writing SQL query reports and data correction ...

Work within Agile/Scrum delivery teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building and consuming REST APIs Solid understanding of object-oriented design and software engineering principles Experience with SQL Server and relational databases Familiarity with unit testing frameworks (e.g. xUnit ...

capacity Solid understanding of microservices architecture and distributed systems Experience with Spring/Spring Boot Cloud experience (AWS, GCP, or Azure) Strong knowledge of REST APIs , messaging, and integration patterns Experience working in agile, consultancy, or client-facing environments Desirable Skills Event-driven architectures (Kafka, RabbitMQ, etc.) Containerisation and orchestration ...

preferred) or Java. Experience in developing .Net-based test automation solutions with BDD tools such as SpecFlow and Gherkin. Expertise in automating tests for REST APIs and/or UI-based applications. Experience with GitHub Actions workflow (yaml) for CI pipeline deployments and testing. Experience using Selenoid for parallel ...

Behavioral Testing: BDD implementation using SpecFlow or Reqnroll . Modern UI & API: Advanced automation utilizing Playwright and Selenium for both interface and deep-layer REST API validation. Cloud-Native Infra: Working within Azure environments, specifically leveraging AKS (Kubernetes) and Service Bus architectures. CI/CD & AI: Fully integrated pipelines ...

KISS principles, decomposition principles, and resolving monolith vs. microservices trade-offs. Experience with SQL and NoSQL databases. Best practices in building scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills ...

1+ years experience working with C# and .NET Understanding of Angular development Excellent SQL Server skills Experience with web services and APIs, e.g. SOAP, REST CI/CD tooling experience Understanding of Agile/Scrum methodologies In line with the Conduct Regulations 2003, when advertising permanent vacancies JNC Recruitment ...

Circa 10+ years’ software development experience, ideally with recent team‐lead responsibilities Strong full‐stack expertise: C#, .NET 8+, Angular 16+, Typescript, SQL Server, REST APIs Experience with NHibernate/Entity Framework, Git, Jira, Confluence Ability to navigate complex multi‐system environments Strong communication and problem‐solving skills Background ...

building front-end applications with React and/or Angular Excellent knowledge of HTML, CSS, JavaScript and TypeScript Experience integrating front-end applications with REST APIs Good understanding of web security principles , including OAuth2.0 and JWT Proven experience designing accessible and user-friendly UIs Familiarity with Node.js , NPM and modern ...

gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB Foundation certification (or equivalent experience) Strong experience in functional, integration, exploratory ...

gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB Foundation certification (or equivalent experience) Strong experience in functional, integration, exploratory ...

Demonstrated fluency with TypeScript, React and frameworks such as NextJS Familiarity with state management libraries (Zustand, Redux, MobX etc.) Experience working with GraphQL/REST APIs Knowledge of the web platform, including HTML, CSS and Browser APIs Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Understanding ...

JSON. Experience with UI binding frameworks such as Vue.js, AngularJS, React, or Knockout is beneficial. Strong understanding of the MVC pattern, REST APIs, and asp.net controllers. Knowledge of security practices, particularly those identified in OWASP, to mitigate security vulnerabilities. Experience in debugging, profiling, and deploying web applications. Strong interpersonal skills ...

rough designs using UI frameworks such as shadcn and Tailwind UI. Experience building web applications with React and NextJS. Strong understanding of APIs (REST, GraphQL) and how to build and consume them, using Python in FastAPI, Flask or similar framework Experience using Claude Code and/or Cursor to build ...

development in React Native is essential , with a strong grasp of front-end design patterns and best practices in mobile SDLC. Proven experience of REST/GraphQL API integration with mobile applications Solid understanding of mobile application fundamentals: iOS/Android app lifecycle, performance constraints and release management Proven hands ...

fundamentals Hard-working & driven mindset In this position, you will gain extensive knowledge across a broad variety of technological topics: ✅ Automation testing knowledge of REST APIs ✅ Software development experience in Java ✅ Identifying opportunities and executing improvements to quality process ✅ Developing automated tests and test frameworks ✅ Improving Continuous Integration pipeline ✅ Exposure ...

signals, or quantitative strategies Basic SQL knowledge Exposure to financial or commodities markets Tech & Tools You’ll Work With Python, AWS, CI/CD REST APIs & real-time data pipelines LLM-driven analytics & event-based data Client-facing dashboards & research workflows Why Join Permutable? Learn how AI and quant signals ...

implementing monitoring and alerting tools (DataDog, Grafana). Solid experience with AWS Cloud Infrastructure and related operational processes. Deep understanding of and experience troubleshooting REST APIs and WebSockets. Exposure to crypto, blockchain (DLT), trading, and risk management systems is highly beneficial. Familiarity with financial services infrastructure standards and processes (e.g. ...

side-by-side extensions using CAP/RAP and low-code tools. Own integration and API strategies leveraging BTP Integration Suite (APIs, OData, REST/SOAP, event-driven patterns). Provide technical leadership, mentoring developers and ensuring adherence to coding standards and best practices. Manage BTP governance including subaccount design ...

Target : Swift (iOS), Kotlin (Android), native UI frameworks (SwiftUI, Jetpack Compose) Architecture : MVVM/MVI, Clean Architecture, Reactive patterns (Combine, Coroutines/Flow) Networking : REST APIs, WebSocket for real-time features, GraphQL consideration Local Storage : Core Data/SQLite, Room Database, secure keychain/keystore AI Integration : Real-time transcription ...

HTTP filters. Solid understanding of functional programming concepts and idiomatic Scala (e.g., immutability, monads, cats/Scalaz familiarity advantageous). Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe). Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation. ...

Strong understanding of functional programming concepts and idiomatic Scala (immutability, monads; familiarity with Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query ...

shipping complex mobile applications to production Comfortable mentoring peers and supporting technical decision-making. Solid understanding of API integration (GraphQL and/or REST). Strong communication skills — able to work effectively with engineers, product managers, and designers. Experience with native modules and bridging in React Native Familiarity with state ...

Experience UI, UI Builder, and Service Portal. Configure role-based dashboards and customised workflows aligned to client requirements. Integrate ServiceNow with external platforms using REST/SOAP APIs and IntegrationHub. Support data migration and ensure data consistency across ServiceNow modules and external systems. Required Experience Hands-on ServiceNow implementation experience ...

scalable, secure backend systems. A lot of what you will be working on will be working on greenfield projects which will be covering building REST API,s and Microservices all with a modern Java stack and a TDD approach. This company like Developers who want to take ownership of what ...