1 to 25 of 102 RESTful Jobs in London

Senior Java full stack developer / Tech Lead

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£70,000 - £80,000 per annum
Mandatory hands-on experience with React js , Redux (or similar state management libraries). Solid understanding of HTML5, CSS3, JavaScript (ES6+) . Experience with RESTful API design and integration. Familiarity with databases such as MySQL, PostgreSQL, or MongoDB. Experience with version control systems like Git. Strong understanding of object-oriented ...

Java Developer - Payments

Hiring Organisation
Crisil
Location
London Area, United Kingdom
Business Analysts, and Transformation Leads to deliver next-generation payments solutions. Key responsibilities Application Development & Integration Design and develop Java-based backend services and RESTful APIs for payment processing, reconciliation, and message translation. Implement ISO 20022 (MX) to MT message transformation logic and related schema validation using XML/JSON ...

Senior Software Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum, Inc benefits
Design, and QA to deliver high-value solutions Design and optimise CI/CD pipelines to enable efficient, reliable software delivery Build and maintain RESTful APIs and distributed systems with a focus on scalability and performance Own complex technical challenges, from design through to production support and optimisation Promote ...

Senior Developer

Hiring Organisation
REED.CO.UK
Location
London, UK
APIs, or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid grasp ...

Full Stack Engineer

Hiring Organisation
FryerMiles Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £75,000 per annum
enhance backend services using frameworks including .NET, Flask, and Django Develop user friendly front end interfaces with React, Angular or similar Create and maintain RESTful API’s, microservices, and integrations with third party systems Troubleshoot and debug issues across the stack Participate in code reviews Requirements: Experience working ...

Full Stack Engineer

Hiring Organisation
FryerMiles Recruitment
Location
London, UK
enhance backend services using frameworks including .NET, Flask, and Django Develop user friendly front end interfaces with React, Angular or similar Create and maintain RESTful API’s, microservices, and integrations with third party systems Troubleshoot and debug issues across the stack Participate in code reviews Requirements: Experience working ...

Dotnet Developer

Hiring Organisation
Information Tech Consultants
Location
City of London, London, United Kingdom
development, APIs, and modern software engineering practices. Key Responsibilities Develop, test, and maintain applications using .NET/.NET Core/ASP.NET Design and implement RESTful APIs and microservices Write clean, scalable, and efficient code Collaborate with front-end developers, QA, and product teams Troubleshoot, debug, and upgrade existing systems Participate ...

Java Software Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
London Area, United Kingdom
blockers and solve systemic issues. Requirements Proven senior-level Java experience (Java 11+), including modern language features and best practices. Strong Spring Boot expertise (RESTful APIs, security, configuration, testing). Essential: scale up banking or financial services background within a regulated environment. Cloud-native experience (e.g., AWS/Azure/ ...

Interim Senior Web App Developer

Hiring Organisation
Handle Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£475 - £540 per day
scalability, and maintainability Candidate requirements - 8+ years' experience in digital development, with a strong portfolio in bespoke eCommerce and enterprise web applications Experienced in RESTful APIs, with knowledge of SOAP, XML, and XPath Expertise in C#, ASP.NET MVC 5, SQL Server, and Entity Framework; experience with HTML5, CSS3, JavaScript ...

Senior Full Stack Engineer

Hiring Organisation
Impala Search
Location
London, UK
. Proven experience with C#, .NET Core , and SQL-based databases . Understanding of Design Patterns and SOLID principles . Experience designing and consuming RESTful APIs . Familiarity with Azure or other cloud platforms and configuration management. Experience with Agile/SCRUM methodologies and modern CI/CD practices. ...

Java Developer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
London Area, United Kingdom
innovative solutions. Key Skills & Experience: Proven senior-level Java experience (Java 11+) including modern language features and best practices Strong expertise in Spring Boot (RESTful APIs, security, configuration, testing) Banking or financial services background within a regulated environment Cloud-native experience (AWS/Azure/GCP) Containerisation (Docker) and orchestration ...

Senior Full Stack Engineer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
engineering experience Strong proficiency in Python (3.10+) with deep understanding of async programming Experience with Poetry or similar Python dependency management tools Experience building RESTful APIs and micro-services Solid understanding of database design and optimisation (both SQL and NoSQL) Experience with graph databases (Neo4j preferred) or willingness to learn ...

Full Stack Software Engineer (Golang/Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep ...

Senior Golang Developer - Kubernetes - Financial Services

Hiring Organisation
Rothstein Recruitment Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 120,000 - 160,000 Annual
systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational ...

Senior Web Application Developer (Full Stack)

Hiring Organisation
CPS Group (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £525/day
Entity Framework * HTML5, CSS3, JavaScript, jQuery, and React experience. * Strong knowledge of Object-Oriented Programming, SOLID principles, and common design patterns. * Experience working with RESTful API design and integration; SOAP WebServices and XML/XPath * Skilled in using IoC containers (Autofac, Ninject) and unit testing frameworks * Experienced with CI/ ...

Senior Back End Developer

Hiring Organisation
KodeLab
Location
London Area, United Kingdom
such as Nest.js, Express.js, or FastAPI . Database Mastery – Strong SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) expertise. API Development & Security – Experience in building RESTful & GraphQL APIs , JWT authentication, OAuth, and cryptographic security. Scalability & Optimization Skills – Ability to optimize database queries, caching strategies, and event-driven architectures (Kafka, RabbitMQ) . ...

Senior Software Engineer

Hiring Organisation
GlobalLogic
Location
City of London, London, United Kingdom
hybrid working. Initially 6-9 months About the role: Experience with C#/.NET Additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Experience with Kubernetes deployments; able to build CI/CD pipelines About you (ideally ...

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 ...

Full Stack Engineer

Hiring Organisation
Futuria
Location
London, UK
needs, contributing directly to products that redefine how humans and intelligent agents collaborate. Key Responsibilities Design, implement, and maintain scalable back-end systems and RESTful APIs using Python (FastAPI/D) Apply domain-driven design and test-driven development to build microservices using agile methodologies, with a focus on reliability ...

Senior Sharepoint Developer

Hiring Organisation
Ryder Reid Legal
Location
London Area, United Kingdom
APIs. Develop and maintain SharePoint Online intranet structures including architecture, navigation, branding, and content design. Integrate SharePoint with internal systems and thirdparty platforms using RESTful APIs and Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (onprem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor performance ...

Senior SharePoint Developer and Administrator

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Develop and maintain SharePoint Online intranet structures including architecture, navigation, branding, and content design. Integrate SharePoint with internal systems and third-party platforms using RESTful APIs and Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (on-prem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, 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 ...

Senior API / PHP Developer - Fully Remote (UK) - £80,000+

Hiring Organisation
Venchr
Location
Central London, UK
strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong knowledge of relational databases such as MySQL or PostgreSQL Experience with asynchronous processing, caching, and queue systems ...

Workflow Developer

Hiring Organisation
Shaw Daniels Solutions
Location
City of London, London, United Kingdom
development. Understanding of ITIL principles (incident, change, problem). Exposure to DevOps, CI/CD, or structured testing and release methodologies. Knowledge of APIs, RESTful services, and authentication methods. ...

Staff Engineer

Hiring Organisation
Tata Consultancy Services
Location
London Area, United Kingdom
across Java, microservices, performance engineering, and distributed systems. Backend Engineering Build and optimize backend services using Java (Java 17+), Spring Boot/Micronaut Design RESTful APIs, asynchronous messaging systems, and microservices. Own performance, reliability, monitoring, and observability for critical services. Ensure high engineering standards: code quality, design reviews, testing ...