1 to 25 of 64 RESTful Jobs in London

Full Stack Engineer

Hiring Organisation
Persistent Systems
Location
City of London, London, United Kingdom
/ML Integration: Work closely with Data Scientists to deploy and integrate ML models (including LLMs, Predictive Models, and NLP) into production environments via RESTful APIs. Database Management: Design and optimize schemas for both SQL (Oracle, PostgreSQL) and NoSQL, (MongoDB), Snowflake databases. Cloud & DevOps: Deploy applications using AWS or Azure ...

Web Developer - C#

Hiring Organisation
CV Screen Ltd
Location
Erith, Kent, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
Solid front-end skills including HTML5, CSS3 and JavaScript/TypeScript, plus a modern framework (e.g. React, Angular or Blazor) Experience with SQL databases, RESTful APIs and software testing practices Salary & Benefits Salary of £45,000 – £50,000 plus 25 days holiday plus bank holidays, hybrid working, pension scheme, private ...

Web Developer - C

Hiring Organisation
CV Screen Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 50,000 Annual
Solid front-end skills including HTML5, CSS3 and JavaScript/TypeScript, plus a modern framework (e.g. React, Angular or Blazor) Experience with SQL databases, RESTful APIs and software testing practices Salary & Benefits Salary of £45,000 £50,000 plus 25 days holiday plus bank holidays, hybrid working, pension scheme, private ...

Web Developer - C

Hiring Organisation
CV Screen Ltd
Location
Belvedere, Colyers, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum Benefits
Solid front-end skills including HTML5, CSS3 and JavaScript/TypeScript, plus a modern framework (e.g. React, Angular or Blazor) Experience with SQL databases, RESTful APIs and software testing practices Salary & Benefits Salary of £45,000 – £50,000 plus 25 days holiday plus bank holidays, hybrid working, pension scheme, private ...

.Net Developer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
working in production environments. Key Responsibilities Design, develop and maintain applications using C# and .NET/.NET Core Contribute to the development of RESTful APIs and backend services Work on the modernisation and refactoring of legacy .NET applications Collaborate with product managers, business analysts and QA to deliver high-quality ...

Senior Python Developer Team Lead

Hiring Organisation
RedTech Recruitment Ltd
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
experience designing and building scalable backend systems Strong experience with AWS and Infrastructure-as-Code tools such as Terraform, CloudFormation or CDK Experience designing RESTful APIs, microservices and event-driven architectures Exposure to CI/CD pipelines, containerisation and version control tools including Docker, Kubernetes and Git Comfortable working ...

Senior Java Developer

Hiring Organisation
Vallum Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 per day
Your responsibilities: Design and develop web applications using Java (latest versions), Spring Boot, and AWS technologies. Architect and implement RESTful APIs for distributed enterprise-grade systems. Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns. Integrate and manage AWS services such as EC2, S3, Lambda ...

Senior React Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience Integrate the UI with RESTful and streaming APIs (built in Rust and Python) Own performance improvements across dashboards, widgets, and live data visualisation Collaborate with QA and DevOps to enhance ...

Senior Software Engineer

Hiring Organisation
Cyber Guardian Consulting Group, LLC
Location
City of London, London, United Kingdom
office, it will transition to hybrid. What You'll Do Design, develop, and maintain API-based integrations with third-party platforms Build and maintain RESTful services, webhooks, and asynchronous workflows Troubleshoot integration failures, API errors, and data inconsistencies Work with external vendors and internal stakeholders to understand integration requirements Ensure ...

Principal Software Engineer

Hiring Organisation
Verifone
Location
City of London, London, United Kingdom
architecture and cross‐service design decisions Strong understanding of security, authentication flows, and data protection in distributed systems API & Data Design and governance of RESTful APIs, JSON, and HTTP standards API versioning and backward‐compatibility strategies MongoDB/NoSQL expertise, including: Data modeling Indexing strategies Performance optimization Advanced experience with ...

Junior Systems Engineer

Hiring Organisation
Open Answers
Location
Harrow, Greenhill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£30000 - £35000/annum
automation Ability to program in at least one compiled language: C, C++, Java, .NET family Windows administration and troubleshooting Understanding of XML, SOAP and RESTful API concepts Cloud experience eg AWS EC2, Azure, Google, Oracle Working with a continuous build environment such as Jenkins Contributing to your own open-source ...

Senior React Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £140,000 per annum
Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience Integrate the UI with RESTful and streaming APIs (built in Rust and Python) Own performance improvements across dashboards, widgets, and live data visualisation Collaborate with QA and DevOps to enhance ...

Python Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
/NoSQL databases. Proven experience working in fast-paced environments, ideally within trading, financial services, or high-frequency environments. Proficiency in developing RESTful APIs, microservices, and working with cloud-based architectures (AWS, GCP, or similar). Expertise in testing frameworks, CI/CD, and containerization technologies such as Docker ...

Senior Software Engineer (React Native) - UCX

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
maintain a high-quality React Native application. Architect scalable mobile solutions that meet the demands of financial applications (security, performance, reliability). Integrate with RESTful and GraphQL APIs and collaborate closely with backend teams. Optimize app performance, including memory usage, load times, and smooth UI interactions. Implement high-security standards ...

C#/.Net Developer

Hiring Organisation
Xcede
Location
London, United Kingdom
Employment Type
Contract, Work From Home
within a modern Azure-based microservices architecture. Key Responsibilities Design, develop, and maintain backend services using C# and .NET Build and enhance microservices and RESTful APIs Develop cloud-native solutions using Microsoft Azure (App Services, Functions, Azure SQL, Service Bus) Implement CI/CD pipelines using Azure DevOps Ensure solutions ...

Senior Outlook Add-in Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
TypeScript, HTML, and CSS Deep understanding of Microsoft 365, Exchange Online, and the behavioral differences between Outlook clients Experience integrating with Microsoft Graph, RESTful APIs, and modern authentication methods (OAuth/Azure AD) Nice to have: Exposure to CI/CD pipelines, Git-based version control, and automated testing practices ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
London Area, United Kingdom
hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with XML-based messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

Software Engineer (React Native) - UCX

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
shaping the evolution of our mobile technology stack. What You'll Do Build and maintain a high-quality React Native application. Integrate with RESTful and GraphQL APIs. Diagnose, debug, and resolve issues across the mobile stack, ensuring a smooth and reliable user experience. Participate in code reviews, offering constructive feedback ...

Senior Python Developer

Hiring Organisation
Hireful
Location
North West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
will champion engineering excellence, define best practices, inspire and mentor developers, and keep innovation at the heart of everything you do – from microservices and RESTful APIs to CI/CD pipelines and containerised deployments. With a strong background in Python development and deep knowledge of AWS, containers and automation ...

Nodejs Developer

Hiring Organisation
Explore Group
Location
London Area, United Kingdom
applications using Node.js and backend technologies. Strong proficiency in JavaScript/TypeScript and backend frameworks like Express.js . Familiarity with designing and working with RESTful APIs and microservices architecture. Experience with database technologies like MongoDB , PostgreSQL , and MySQL . Experience working with cloud platforms (e.g., AWS , Azure , or GCP ). ...

Office.js Developer (Outlook)

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£500 - £550 per day
TypeScript, HTML, and CSS Deep understanding of Microsoft 365, Exchange Online, and the behavioral differences between Outlook clients Experience integrating with Microsoft Graph, RESTful APIs, and modern authentication methods (OAuth/Azure AD) Nice to have: Exposure to CI/CD pipelines, Git-based version control, and automated testing practices ...

Senior Frontend Engineer

Hiring Organisation
AudienceProject
Location
London Area, United Kingdom
Experience designing and maintaining scalable frontend architectures in complex applications. Solid understanding of state management, component architecture, and performance optimisation techniques. Experience integrating with RESTful APIs and/or GraphQL. Experience implementing testing strategies (e.g., Jest, React Testing Library, Cypress or similar). Familiarity with CI/CD pipelines ...

Full-Stack Engineer - 6-month contract - Immediate Start

Hiring Organisation
The ECA International Group
Location
London, United Kingdom
Employment Type
Contract, Work From Home
experience with React, Tailwind CSS, Node.js, and TypeScript . Solid understanding of microservices and modular architecture . APIs, Data & Integrations Strong experience with RESTful and GraphQL APIs . Hands-on experience with middleware and orchestration tools such as Tachyon, Temporal, or similar platforms. Experience with data ingestion, pipeline management ...

C# .NET Software Developer - with Blazor. Award-Winning SaaS. Remote

Hiring Organisation
RecruitmentRevolution.com
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 65,000 Annual
Proven experience with Blazor • Strong understanding of object-oriented programming principles. • Experience with front-end technologies such as HTML, CSS, and JavaScript. • Familiarity with RESTful APIs and web services. • Excellent problem-solving skills and attention to detail. • Ability to work effectively in a small team environment. • Strong verbal and written ...

C# .NET Software Developer - with Blazor. Award-Winning SaaS. Remote

Hiring Organisation
RecruitmentRevolution.com
Location
London, Covent Garden, United Kingdom
Employment Type
Permanent
Salary
£45000 - £65000/annum depending on experience
Proven experience with Blazor • Strong understanding of object-oriented programming principles. • Experience with front-end technologies such as HTML, CSS, and JavaScript. • Familiarity with RESTful APIs and web services. • Excellent problem-solving skills and attention to detail. • Ability to work effectively in a small team environment. • Strong verbal and written ...