1 to 25 of 781 REST Jobs in London

Senior AI Software Developer

Location
Greater London, England, United Kingdom
/JavaScript and/or C#/.NET development experience. Experience with Hapi.js and/or ASP.NET Core. Full Software Development Lifecycle (SDLC) experience. REST APIs and Microservices. Cloud-native application development. Distributed Systems. Event-Driven Architectures. Automated Testing and Test-Driven Development (TDD). Docker and Containerisation. MongoDB ...

Software Developer | Capital Markets

Location
Greater London, England, United Kingdom
Linux Tools/Technologies/Infra : NodeJS, cloud/AWS, RabbitMQ, AMQ, Mongo, Bitbucket (Git), SQL/Server, Jira Design : API, HTTP/REST, JSON, micro-services and distributed systems SDLC : Agile, Scrum, Kanban, DevOps, CI/CD, Automation First, BDD/TDD, DORA. Understanding of, and advocacy for, Agentic ...

Software Developer (Java & Typescript)

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
. Strong commercial experience developing applications using Java . Strong experience developing services and APIs using TypeScript and Express.js . Experience building and supporting REST API and micro service-based architectures. Strong understanding of secure software engineering principles and best practices. Experience with version control, automated testing and code quality ...

Senior Python Developer/ Engineer

Location
City of Westminster, England, United Kingdom
client stakeholders to translate business requirements into robust technical solutions. Design and implement integrations with internal client systems and external third-party APIs using REST, webhooks, and event-driven integration patterns. Apply software engineering best practices, including SOLID principles, Clean Architecture, Repository Pattern, Factory Pattern, Strategy Pattern, Dependency Injection ...

Senior Lead Full-Stack Software Engineer

Location
Greater London, England, United Kingdom
HTML5, CSS3, and JavaScript. Hands-on experience with React.js and its core principles. Strong understanding of API protocols and asynchronous request handling, including REST and GraphQL. Experience with relational (SQL) and NoSQL databases, including data modelling and optimization. Experience in Java and Spring Boot for backend development and system architecture. ...

Senior Java Engineer: Cloud Microservices & AI

Location
Greater London, England, United Kingdom
following; Strong proficiency in Java (Java 12+ preferred). Experience with Spring Boot, Spring Framework, and microservices architecture. Strong understanding of REST APIs, distributed systems, and event-driven architectures. Experience with relational databases such as PostgreSQL, MySQL, or Oracle. Experience with cloud platforms such as AWS, Azure, or Google Cloud ...

Salesforce Marketing Cloud Next and Data 360 Developer

Location
Greater London, England, United Kingdom
writing and troubleshooting SQL queries and working with structured data formats such as CSV, JSON and XML. • You’ll have experience integrating systems using REST APIs, SOAP APIs, file-based interfaces, middleware solutions, connectors or event-driven approaches. • You’ll understand software development lifecycle practices including requirements gathering, user stories ...

Full Stack .Net Developer

Location
Greater London, England, United Kingdom
Service Bus, Key Vault and API Management Hands-on experience with Azure DevOps and CI/CD pipeline implementation Experience building and consuming REST APIs Understanding of Agile development practices, SOLID principles and automated testing Experience using Claude AI or similar AI development tools to improve delivery and productivity Desirable ...

Test Analyst

Location
City Of London, England, United Kingdom
Experience Experience in any of the following areas would be advantageous: Test Automation: Selenium, Playwright, Cypress or similar tools. API Testing: Postman, SoapUI or REST APIs. Database Testing: SQL, data validation and reconciliation. ERP Testing: SAP, Oracle, Workday or Microsoft Dynamics. Financial Services, Banking, HR, Payroll or Finance Transformation. Performance ...

Ruby Developer

Location
Greater London, England, United Kingdom
professional experience with other backend technologies, such as Node.js, Python, Java, or .NET. Strong experience with PostgreSQL/MySQL and database optimisation. Experience with REST APIs, microservices, and distributed systems. Experience with Redis, Kafka, RabbitMQ, or similar backend technologies. Experience with Docker, CI/CD, and at least one cloud ...

Java Engineer with AI

Location
Greater London, England, United Kingdom
roadmaps Required Qualifications Strong experience with Java 12+, Spring Boot, and microservices architecture Experience integrating AI/ML solutions into backend systems Understanding of REST APIs, distributed systems, and database design Familiarity with SQL and NoSQL databases Experience with cloud platforms (e.g., Amazon Web Services, Google Cloud Platform, or Microsoft ...

Senior Forward Deployed Engineer(AI/GenAI)

Location
Greater London, England, United Kingdom
architectures.Experience with LangChain, LangGraph, LlamaIndex, Semantic Kernel, or similar frameworks.Expertise in Azure OpenAI, OpenAI, AWS Bedrock, Vertex AI, or open-source LLM ecosystems.Knowledge of REST APIs, microservices, cloud platforms (Azure/AWS/GCP), Docker, Kubernetes, and CI/CD.Strong problem-solving, stakeholder management, and communication skills.PreferredExperience delivering AI solutions ...

Senior Software Engineer II -Java

Location
Greater London, England, United Kingdom
foundation in object-oriented design, development, and standard design patterns. Expert-level development experience using Java, Spring Boot and Web Services. Strong understanding of REST APIs, Spring Boot, Micro Services and SOA web services. Expertise with front-end technologies such as JavaScript, TypeScript, Angular, and/or ReactJS. Ability ...

Junior Solution Architect

Location
Greater London, England, United Kingdom
technical role. Good understanding of software architecture, APIs, databases, and application development. Exposure to cloud platforms such as AWS, Azure, or GCP. Understanding of REST APIs, microservices, integrations, and distributed systems. Familiarity with Docker, CI/CD, Git, and modern development practices. Understanding of at least one programming language such ...

Senior Android Engineer

Location
Greater London, England, United Kingdom
Experience with/eager to learn Swift/iOS Demonstrable experience in TDD, pair programming Agile development methods such as Scrum or Kanban REST API development and/or consumption Deep understanding of MVVM and MVP. Desirable skills/experience you may have Postman or similar tools Charles/Proxyman ...

Senior Software Engineer, Portfolio Management Capabilitities

Location
City Of London, England, United Kingdom
deploying and supporting software across the full development lifecycle.Developing front-end applications using TypeScript, React and Redux.Building back-end services using Java, Node.js and REST APIs.Developing analytics and data processing components using Python.Designing data models and working with relational and document databases.Writing automated unit, integration and end-to-end tests.Contributing ...

Senior Software Engineer, Portfolio Management Capabilitities

Location
Greater London, England, United Kingdom
supporting software across the full development lifecycle. Developing front‐end applications using TypeScript, React and Redux. Building back‐end services using Java, Node.js and REST APIs. Developing analytics and data processing components using Python. Designing data models and working with relational and document databases. Writing automated unit, integration ...

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £525 per day + Inside IR-35
/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform experience ...

Dynamics 365 Developer

Hiring Organisation
Cyberteam
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £450 per day
Activities. - Strong understanding of Microsoft Dataverse architecture, solution design, and data modelling. - Experience building integrations using: - Microsoft Dataverse Web APIs - Dynamics 365 Web APIs - REST APIs - OAuth and modern authentication mechanisms - Experience developing: - PCF Controls - JavaScript and TypeScript solutions - Power Apps - Power Automate - Custom Web Resources - Strong experience using Microsoft ...

Java Developer (SC Eligible/ Cleared)

Location
Greater London, England, United Kingdom
colleagues informally), and understands how their work contributes to broader team and organisational objectives. Key Responsibilities Design, develop, test, and maintain backend services and REST/GraphQL APIs using Java/Spring Boot (or equivalent modern backend stack). Contribute to system architecture and data model design in collaboration with ...

Staff Android Engineer

Location
Greater London, England, United Kingdom
Experience with/eager to learn Swift/iOS Demonstrable experience in TDD, pair programming Agile development methods such as Scrum or Kanban REST API development and/or consumption Deep understanding of MVVM and MVP Significant experience leading teams of people or technical decisions Desirable skills Postman or similar ...

Lead Full Stack Kotlin Developer

Hiring Organisation
Hippo Digital
Location
London, England, United Kingdom
quality, robust, and scalable solutions.Expertise in building back-end services using Kotlin with Spring Boot and the wider Spring Framework (Spring MVC, Spring Security, REST APIs), leveraging Kotlin idioms and coroutines where applicable.Experience in Microservices design and architecture, including RESTful API services and Kotlin-based microservice patterns.Expertise in public cloud ...

Senior Java Engineer

Location
Greater London, England, United Kingdom
Strong understanding of both high level and low level software design. Expertise in: Core Java, Python Building highly distributed, data intensive systems Microservices, REST APIs RDBMS (Oracle/SQL Server/Postgres) CI/CD tools (Jenkins/GitLab), DevOps automation Docker, Kubernetes JVM profiling & performance optimisation Prior exposure ...

Polyglot Engineer (JS/Python/Go)

Location
Greater London, England, United Kingdom
security) and performance optimization; Scalable system design patterns, load balancing, and high-availability architectures; Database design and optimization (both relational and NoSQL); API development (REST, GraphQL, gRPC) and event-driven architectures; Caching strategies and message queue systems (Redis, Kafka, RabbitMQ); Cloud platforms (AWS, Azure, GCP) with containerisation (Docker, Kubernetes ...

Microsoft Consultant

Location
Greater London, England, United Kingdom
.NET. Experience developing applications using ASP.NET/ASP.NET Core. Good understanding of object-oriented programming and software development principles. Experience developing and consuming REST APIs/web services. Strong understanding of software development lifecycle and coding best practices. Experience working with relational databases such as SQL Server. Ability to troubleshoot ...