26 to 50 of 106 RESTful Jobs in London

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 ...

Graduate Software Developer

Hiring Organisation
CityGrad
Location
City of London, London, United Kingdom
debugging practices and techniques. Preferable but not essential Experience coding in ReactJS, C# .NET Core. Preferable but not essential Web technologies (CSS, HTML5, RESTful API’s, WebSockets) Preferable but not essential ...

Workflow Developer

Hiring Organisation
Shaw Daniels Solutions
Location
London Area, 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 ...

Full Stack Engineer - C# / React / SQL

Hiring Organisation
Cross Atlantic Partners
Location
London, UK
database design Proven experience working on middle/back-office systems in financial services Understanding of fund operations workflows and processes Experience with RESTful APIs and microservices architecture Strong problem-solving abilities and attention to detail Highly Desirable Experience with fund accounting/administration systems (Geneva, Charles River, SimCorp, etc. ...

Mid-Level .NET / Full Stack Developer – Hybrid – £450/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
month contract Responsibilities Build and maintain .NET services powering a global payments platform Contribute to event-driven microservices running in Azure Develop and maintain RESTful APIs used by internal systems and external partners Collaborate with senior engineers on system design and implementation Write clean, maintainable, and well-tested code Participate ...

Lead Software Engineer (Java)

Hiring Organisation
Candour
Location
London Area, United Kingdom
architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice-based systems. Experience with Kafka or similar event-driven technologies. Familiarity with RESTful APIs, SQL/NoSQL databases, and CI/CD best practices. Excellent mentoring and leadership skills with the ability to influence technical direction. Benefits include ...

Back End Developer - Data Centres

Hiring Organisation
TGS International Group
Location
London Area, United Kingdom
systems that are scalable, efficient, and reliable Turn product and technical requirements into well-structured backend solutions Design & Deliver APIs Build clean, well-documented RESTful APIs Ensure APIs are performant and easy to integrate with other services Maintain consistency across services and interfaces Own Quality & Architecture Contribute to system design ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
London Area, United Kingdom
HTML5 , CSS3 , and modern JavaScript (ES6+). Proven experience with state‐management libraries (e.g., Redux, Zustand). Solid experience integrating front‐end apps with RESTful APIs, (GraphQL is a bonus). Experience with testing frameworks (e.g., Jest , React Testing Library ). Comfortable with CI/CD pipelines, version control ...

Senior Full-Stack Engineer

Hiring Organisation
EC1 Partners
Location
London Area, United Kingdom
TypeScript. Infrastructure: Familiarity with cloud environments (e.g., AWS, Azure). Databases: Experience with relational databases (Postgres, Oracle, etc.). APIs: Experience designing and building RESTful APIs. Bonus: Experience with functional programming languages (Clojure, Haskell). What the Company Offers Competitive compensation, including equity, bonus eligibility, and retirement benefits. Comprehensive health ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS mitigation, CSP/SRI, dependency hygiene. Proven experience interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets ...

Full Stack Developer - New cutting edge AI product (Node.js)

Hiring Organisation
MLR Associates
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 - 110,000 Annual
Strong experience with Node.js and TypeScript for Back End development. Proficiency with modern Front End frameworks (React, Next.js, Vue, or similar). Experience with RESTful APIs and/or GraphQL design and integration. Familiarity with data pipelines, version control (Git), and CI/CD workflows. Understanding of responsive design, cross ...

Sharepoint Developer & Administrator

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
SharePoint Framework (SPFx) development. - Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# and .NET Framework for backend and integration development. - Hands-on experience administering SharePoint on-prem environments, including patching ...

Lead Java Engineer - Rates

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £130,000 per annum
moving datasets Strong understanding of distributed systems and event-driven architectures Experience with messaging technologies such as Kafka, Solace or RabbitMQ Solid experience building RESTful and event-driven APIs Strong knowledge of SQL and relational database design Experience deploying applications using containerisation and orchestration (e.g. Kubernetes) Track record of driving ...

Generative AI Engineer

Hiring Organisation
TechNET IT Recruitment Ltd
Location
London Area, United Kingdom
experience as a Python Engineer, AI Engineer or Backend Engineer Expertise with Python frameworks such as FastAPI, Flask or Django Hands‐on experience building RESTful APIs and scalable backend services Solid understanding of API security, versioning, performance and distributed system design Strong knowledge of AWS serverless stack: Lambda, Step Functions ...

Senior Frontend Engineer

Hiring Organisation
Impala Search
Location
London, UK
/UX design and a passion for delivering exceptional user experiences. Understanding of Design Patterns and SOLID principles . Experience building and consuming RESTful APIs . Familiarity with Agile/SCRUM methodologies and modern CI/CD practices. Why Join? Bootstrapped success story - with multiple thriving business arms. An executive ...

Palo Alto XSoar Developer

Hiring Organisation
iBSC
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
development, maintenance, and delivery of new Security Orchestration and Automation content including custom SOAR Playbooks, Automations/Scripts, Jobs, dashboards, reports, widgets, RESTful API integrations, and code via Continuous Integration/Continuous Delivery pipelines adhering to an Agile development practice Reduce Incident Response efforts and increase quality leveraging XSOAR ...

Junior Back-end Engineer

Hiring Organisation
ivee
Location
City of London, London, United Kingdom
grow. Key responsibilities: Build and maintain server-side logic using modern backend frameworks (e.g. Node.js, Python, Go) Work with APIs — designing, integrating, and maintaining RESTful endpoints Support database design and optimisation (e.g. PostgreSQL, MongoDB) Collaborate with front-end and product teams to deliver full-stack features Write clean, testable ...

Python Software Engineer

Hiring Organisation
Apex Systems US
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£80 - £90/hour
integration, and acceptance tests Comfortable in an agile working environment Self-starter and proactive DESIRED SKILLS: Experience with modern web UI technologies; HTML5, React, RESTful services, Websockets Knowledge of Structured Products (Notes, Warrants, Certificates) BUSINESS KNOWLEDGE Equity Derivatives Regional variations of Products and Trading ...

Senior Fullstack Software Engineer

Hiring Organisation
Outsmart Insight
Location
City of London, London, United Kingdom
them into robust, production-ready solutions. What you’ll be doing Designing and maintaining backend services primarily in Python Developing and evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed, including JavaScript, modern HTML/ ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
London Area, United Kingdom
Rails architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting ...

Engineering Manager - Software & ML

Hiring Organisation
Capital One UK
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
What we're looking for Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily ...

Oracle Developer

Hiring Organisation
GIS Recruiter Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum + Benefits (Neg)
develop, and maintain Oracle based applications and database solutions Write efficient, scalable and high-performance SQL and PL/SQL code Develop and integrate RESTful APIs to support modern application architectures Collaborate with architects, developers and consultants to translate requirements into solutions Contribute to system design, code reviews and best … Support deployment, testing and ongoing maintenance of applications Skills & Experience Required Oracle Database development (SQL/PL-SQL) SQL Server Experience designing and consuming RESTful APIs/REST API services Proficiency in at least two of the following programming languages: Python Java JavaScript .NET (C#) Experience working in Agile/ ...

Contract Senior Backend Engineer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
Requirements Strong programming skills in the JVM ecosystem Some proficiency in Python 6+ years of backend development experience Proven experience with microservices architecture and RESTful APIs Proficient with both NoSQL and SQL databases Excellent communication skills, both written and verbal Why Join? Salary: Competitive day rate of up to £700p ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands-on experience applying TDD and BDD testing approaches Good understanding of clean coding principles, SOLID, and cloud technologies Previous experience in the Finance ...