26 to 50 of 191 REST Jobs in London

Senior Full Stack Developer

Hiring Organisation
Glite Tech
Location
City of London, London, United Kingdom
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 ...

IT Development Team Lead (Full Stack)

Hiring Organisation
Euro Car Parks
Location
North West 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 ...

Senior Java Engineer Smart Contract

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
financial services , Ideally Commercial Lons. Experience in developing and deploying microservices architectures using Spring Boot, Spring Batch, and Spring Data In-depth knowledge of REST API principles and HTTP protocols. Proficiency in Git, CI/CD, and Agile methodologies. Familiarity with JIRA, JUnit, and Apache Kafka is preferred. Experience with ...

AI Director

Hiring Organisation
Global University Systems
Location
South London, UK
Employment Type
Full-time
with vector databases and retrieval pipelines (e.g., Azure AI Search, Pinecone) and guardrails for GenAI. Background in enterprise architecture and integration patterns (event-driven, REST, GraphQL). Relevant certifications such as Agile/Scrum (PSM/CSM), Azure AI Engineer/DP-100, PMI-ACP/SAFe, or security/ ...

Principal Engineer (Solutions Architect) - (Frontend & Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
module federation, stateless, SPA and others Advanced knowledge of React and React Native Eco system and AWS technology stack. Strong API/integration experience: REST/GraphQL, auth flows, contract design and resilience patterns Well versed in latest CI/CD practises and tools, deployment methodologies and experienced in tools ...

Software Engineer, Frontend

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
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 ...

Senior Contact Centre Engineer

Hiring Organisation
83zero Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65,000
experience, with a focus on Amazon Connect solution delivery. Strong technical troubleshooting skills and ability to collaborate on complex configurations. Knowledge of HTTP requests, REST APIs, JSON. Hands-on Amazon Connect contact flow development experience. Software/tools experience: Wireshark, MS Office (Word, Excel, PowerPoint, Access), MS Outlook, Visual Studio ...

Junior Developer

Hiring Organisation
JNC Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Senior Golang/Java Security Engineer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
software vulnerability types SAST, SCA, and DAST, including the strengths and weaknesses of each At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with ...

Lead Developer - C#/Angular - Commodities

Hiring Organisation
Harvey Nash
Location
City of London, London, United Kingdom
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 ...

C#.NET Developer – Financial Systems Developer

Hiring Organisation
Centre People Appointments
Location
City of London, London, United Kingdom
control tools such as Git) • Business-level English or above Preferred Skills/Experience: • Professional experience in the financial industry • Web API development experience (REST, SOAP, etc.) • Development experience in cloud environments (Azure, AWS) *When contacting us, please include the job reference number (Ref: YC46978) at the top of your ...

SC Cleared ServiceNow Developer

Hiring Organisation
ESynergy Solutions Limited
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550 per day
Flow Designer, Business Rules, Client Scripts, and UI Policies Solid understanding of ServiceNow best practices and platform architecture Experience integrating ServiceNow with external systems (REST/SOAP APIs) Familiarity with Agile delivery in secure or regulated environments Ability to work independently in high-compliance government projects Excellent problem-solving ...

Frontend Engineer

Hiring Organisation
Rullion Managed Services
Location
London, United Kingdom
Employment Type
Contract
fast-paced environment, and learning from talented peers, this role is for you. Responsibilities Develop React applications on the frontend and work with REST API or GraphQL servers. Collaborate in a product/engineering team with frontend, backend, and platform engineers, as well as designers. Plan, build, test, and release ...

Salesforce Developer

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
Salesforce Developer in production environments Advanced knowledge of Apex , Lightning Web Components , SOQL , and Salesforce configuration Proven experience integrating Salesforce with external systems via REST/SOAP APIs Experience working in financial services, payments, banking, fintech, or other regulated industries. Solid understanding of data security, permissions, and compliance considerations Familiarity ...

DevOps Engineer

Hiring Organisation
Aveni
Location
South London, UK
Employment Type
Full-time
with Terraform & Helm Monitoring and maintaining ML models with performance alerts and dashboards Supporting CI/CD for ML pipelines Developing production-grade APIs (REST/gRPC) to serve models Collaborating with engineers, data scientists & DevOps teams Your Experience: Industry experience in DevOps or MLOps roles (ideally in AWS environments ...

Full Stack Developer - React / Java (SC Cleared)

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£500 - £525 per day
Boot to connect the UI to core services. Key Skills Expert React JS: Deep knowledge of TypeScript, state management (Redux/Context), and consuming REST APIs. Java/Spring Boot: Sufficient experience to maintain and extend backend services and microservices. Workflows (Desired): Any experience with Camunda or other BPMN orchestration ...

QA Engineer web3 – DeFi

Hiring Organisation
Saucedd
Location
London Area, United Kingdom
years of experience in test automation ● 2+ years working with TypeScript ● Strong experience with frontend and Web UI automation using Playwright ● Extensive experience with REST API test automation ● Required: hands-on experience in the crypto and Web3 space ● Experience querying and validating state in databases (Mongo, SQL, Postgres) ● Knowledge ...

Software Engineering Manager - UCX (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Java Developer

Hiring Organisation
Data Careers
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
Java Developer Permanent Location: Home Based Salary: £70,000 - £75,000 Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer to join a leading technology consultancy working on the upgrade, enhancement ...

Application Security Engineer

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £550 to £650 per day
strengths and weaknesses of each At least one programming language (e.g. Java, Go) At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with CI/ ...

AppSec Engineer / Application Security Engineer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day
strengths and weaknesses of each At least one programming language (e.g. Java, Go) At least one major cloud provider (e.g. AWS, GCP, Azure) REST API design HTTP Authentication Linux at the terminal, including scripting and automation (e.g. shell, Python) Some other highly valued skills may include: Experience with CI/ ...

Front End Developer

Hiring Organisation
Experis
Location
Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £520/day
Proficiency in TypeScript and JavaScript for browser-based applications Solid understanding of modern front-end development practices (ES6+, component-based architecture) Experience working with REST APIs and asynchronous data handling Familiarity with Git and collaborative development workflows Nice to Have Experience with Playwright for front ...

.Net Developer (Fully Remote)

Hiring Organisation
DMS Computer Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £65,000 per annum
years of experience in Microsoft .NET (full framework, .NET Core, .NET 6) Proficiency in object-oriented programming (C#) and web concepts (Http, MVC, REST, OAuth) Knowledge of and an active interest in Design Patterns and SOLID architecture principles Excellent problem solving and troubleshooting skills Outstanding communication and interpersonal skills Dynamic ...

Back End Engineer

Hiring Organisation
Silas Insurtech
Location
London, UK
Employment Type
Full-time
best practices · Collaborate with technical leadership on architecture and product decisions Required Experience · 3+ years of backend development experience with Python · Strong understanding of REST APIs, async programming, and database design · Experience with cloud platforms (AWS preferred) and containerization · Proven ability to write production-quality code with proper testing ...

Graduate Developer in Test

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
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 ...