1 to 25 of 247 REST Jobs in London

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 ...

Solution Architect

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
delivering integrations between Power Platform, Dynamics 365, and external systems using APIs, middleware, and third-party platforms. Azure Integration Services: Strong knowledge of REST and SOAP APIs, Azure Logic Apps, Azure Functions, Azure Service Bus, and Azure Event Grid, with the ability to design scalable and resilient integration solutions. Microsoft ...

Principle Engineer

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Experience operating within Agile and DevOps delivery models. Desirable Skills: Application & Integration Technologies C# .NET Entity Framework JavaScript React Vue.js Windows Presentation Foundation (WPF) REST APIs Microservices architecture AI & Data Technologies AWS SageMaker Large Language Model (LLM) integrations AI-assisted analytics solutions Python-based data analysis tooling Architecture & Governance Enterprise ...

Java Engineer with AI

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
technical roadmapsRequired 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 ...

Java Engineer

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
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 Platform. ...

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 ...

Senior Software Engineer II -Java

Hiring Organisation
LexisNexis Risk Solutions Group
Location
London, UK
Employment Type
Full-time
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 to explain ...

Solution Architect

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
Microsoft Azure (for example: AKS, Functions, API Management, Key Vault, Application Insights).Solid background in software engineering (ideally .NET) and modern integration patterns (REST, messaging, event-driven).Strong grasp of security fundamentals, including identity and access management, OAuth 2.0/OpenID Connect, secure API design and threat modelling. Ability ...

Dynamics Integration Specialist

Hiring Organisation
Vivo Talent
Location
Kingston Upon Thames, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 70,000 - 71,000 Annual
experience delivering integrations with Microsoft Dynamics 365, including Customer Engagement (CE), Finance & Operations or Business Central. Strong hands-on experience with Dataverse Web API, REST/SOAP APIs, OData, JSON and XML. Proficiency in Azure integration services, including Logic Apps, Azure Functions, Service Bus, API Management and Data Factory, alongside ...

Full Stack Developer : Azure Databricks

Hiring Organisation
Eaglecliff Recruitment
Location
London, UK
Employment Type
Full-time
technologies: React/Angular/Vue, HTML5, CSS3, JavaScript/TypeScript Solid experience in back-end technologies: Node.js/.NET/Java/Python, REST APIs, GraphQL Strong understanding of databases: SQL (PostgreSQL, MySQL, SQL Server) Hands-on experience with cloud services, ideally Azure or AWSPreferred Experience 5-6 years ...

Java Modernization Technical Architect - SC Clearance

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day Inside IR35 via Umbrella
Container Apps (ACA), ARO, Azure Storage, Azure SQL, and Azure Key Vault. Modernization & Security: Track record in legacy-to-cloud application migration, OAuth2, JWT, REST API architecture, performance tuning, and security hardening. Containerization: Hands-on experience with Docker and Kubernetes for container orchestration. Front-End Fundamentals: Exposure to client-side ...

Java Modernization Technical Architect - SC Clearance

Hiring Organisation
Randstad Technologies
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £500.00 per day
Container Apps (ACA), ARO, Azure Storage, Azure SQL, and Azure Key Vault. Modernization & Security: Track record in legacy-to-cloud application migration, OAuth2, JWT, REST API architecture, performance tuning, and security hardening. Containerization: Hands-on experience with Docker and Kubernetes for container orchestration. Front-End Fundamentals: Exposure to client-side ...

Senior Java Fullstack Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
robust, scalable and maintainable solutions. The company is investing in the continued modernisation of its software platforms, introducing new versions of Java, Springboot, Angular, REST APIs and Microservices. You'll work across both existing systems and new development, helping improve scalability, performance and maintainability while contributing to technical design discussions. ...

Senior Java Developer

Hiring Organisation
Avanti Recruitment
Location
EC1, Farringdon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
opportunity to work on technically challenging, large-scale applications. This is a hands-on development position with a strong emphasis on Java, Spring Boot, REST APIs and microservices, alongside commercial frontend development using Angular, React or Vue. The company is continuing to modernise its established software platforms, creating an opportunity ...

Senior Java / Angular Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
robust, scalable and maintainable solutions. The company is investing in the continued modernisation of its software platforms, introducing new versions of Java, Springboot, Angular, REST APIs and Microservices. You'll work across both existing systems and new development, helping improve scalability, performance and maintainability while contributing to technical design discussions. ...

Senior Fullstack Java Developer

Hiring Organisation
Avanti Recruitment
Location
EC1, Farringdon, Greater London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
opportunity to work on technically challenging, large-scale applications. This is a hands-on development position with a strong emphasis on Java, Spring Boot, REST APIs and microservices, alongside commercial frontend development using Angular, React or Vue. The company is continuing to modernise its established software platforms, creating an opportunity ...

Senior Fullstack Developer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
opportunity to work on technically challenging, large-scale applications. This is a hands-on development position with a strong emphasis on Java, Spring Boot, REST APIs and microservices, alongside commercial frontend development using Angular, React or Vue. The company is continuing to modernise its established software platforms, creating an opportunity ...

Snr Full Stack Python Engineer-Agentic Systems

Hiring Organisation
Harvey Nash
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£950 - £1000 per day
design, query optimization, stored procedures a plus) alongside other relational/non-relational data stores as needed. * Build clean, well-documented, and testable APIs (REST and/or MCP-based) that integrate cleanly with upstream and downstream systems. * Contribute to architecture and design decisions, including system scalability, fault tolerance ...

Lead Software Engineer Product Lead Technologist Business

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Strong experience in a modern object-oriented language (C# or Java) Deep knowledge of software design patterns, clean code and clean architecture Experience building REST APIs and working with messaging systems Confidence defining data models and working with databases Experience shipping user-facing web applications A collaborative, Agile mindset ...

SDET (C#)

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
frameworks and integrating automated testing into CI/CD pipelines with quality gates. Experience with API and integration testing using tools such as Postman, REST frameworks and hands on performance testing using Jmeter or load runner. Understanding of modern engineering practices including branching strategies, pull requests, peer reviews, accessibility testing ...

Fullstack Engineer

Hiring Organisation
Oscar
Location
London, UK
Employment Type
Full-time
confidential financial data. What you'll doBuild data-heavy, accessible interfaces in TypeScript and React, respecting a detailed role-based access modelDesign services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contractsModel data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolationBuild event-driven and background ...

IT Development Team Lead (Full Stack)

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
DevOps CI/CD processes, Service bus Architecture, Microservices, Functions, Web apps, IAC Experience with AI driven development tools such as Claude Experience developing REST API-driven mobile first web applications Experience of frontend application development, with a focus on React.js, Next.js and TypeScript Jira, Bitbucket, Git Flow, Confluence, Azure ...

Fullstack Engineer

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
data. What you'll do Build data-heavy, accessible interfaces in TypeScript and React, respecting a detailed role-based access model Design services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contracts Model data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolation Build event-driven ...

Solution Architect Azure, .Net

Hiring Organisation
Arc IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
solutions on Microsoft Azure Strong knowledge of Azure PaaS and serverless, plus cloud networking, Entra ID and security API and integration architecture experience across REST, event-driven and messaging patterns Data architecture experience spanning relational and NoSQL stores and analytics platforms Infrastructure as code (Bicep, ARM or Terraform) and DevOps ...

Lead Application Architect

Hiring Organisation
BESTWAY WHOLESALE LIMITED
Location
North West London, London, United Kingdom
Employment Type
Permanent
solid grasp of containerisation and cloud-native principles. Working knowledge of CI/CD (Docker, GitHub Actions) from a developers perspective. Strong understanding of REST API design and OAuth2/OpenID Connect. Strong commitment to automated testing, and the ability to set testing standards the team can adopt. Hands ...