26 to 50 of 86 RESTful Jobs in the City of London

Staff React Engineer (TypeScript + AI Experience)

Hiring Organisation
Wizeline
Location
City of London, London, United Kingdom
state management patterns (Redux, Zustand, or Recoil). Proficiency with testing frameworks (Jest, React Testing Library, Cypress) and performance profiling tools. Experience integrating RESTful and GraphQL APIs . Bachelor’s degree in Computer Science, Software Engineering, or related field. Advanced English level , both written and verbal. Excellent communication, leadership ...

Java & PEGA Developer

Hiring Organisation
RED Global
Location
City of London, London, United Kingdom
Strong experience with Java, Spring Boot & Microservices • Hands-on experience with PEGA BPM/Pega Platform (CSA/CSSA preferred) • Experience building and integrating RESTful APIs • Strong database experience: SQL/NoSQL (PostgreSQL, Oracle) • Cloud experience: AWS/Azure/GCP • Containerization: Docker & Kubernetes Looking forward to seeing your applications ...

Full Stack Java Developer

Hiring Organisation
Insight International (UK) Ltd
Location
City of London, London, United Kingdom
Front Door (WAF + CDN), Microsoft Azure. Refer the technologies below. Experience working in Microsoft Azure suite. Refer the technologies below Design and implement RESTful APIs and integrate with front-end components. Write testable code following best practices. Perform unit testing and participate in code reviews. Collaborate with UI/ ...

Senior Java Software Engineer

Hiring Organisation
Arrows
Location
City of London, London, United Kingdom
developing performant, scalable backend systems using Java (up to Java 21). Building microservices with Spring Boot and related frameworks. Developing and maintaining RESTful APIs and event-driven systems. Writing clean, testable code and following TDD principles. Working closely with DevOps, Product, and QA teams to deliver high-quality solutions. ...

🌳🌳🌳 🚀 – Front-End Tech Lead / Development Team Lead (x5)- Vue / React / Angular /Javascript, Azure, Testing, Remote - Scotland - Award-Winning, High-Growth Tech Scale-Up

Hiring Organisation
Areti Group | B Corp™
Location
City of London, London, United Kingdom
state management and component architecture Supporting stack (you’ll collaborate closely, not own alone): 🌳 .NET (.NET Framework & .NET Core) 🌳 Azure SQL & Azure Cloud 🌳 RESTful APIs 🌳 Bonus: SignalR, RabbitMQ, broader Azure services Experience with large, complex, data-heavy interfaces is a major plus. About You Leadership titles aren’t required - front ...

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 ...

React JS Developer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
maintain user interfaces using React JS , Redux , and related libraries. Build reusable components and front-end libraries for future use. Integrate UI with RESTful APIs and collaborate with backend teams. Ensure application performance, responsiveness, and cross-browser compatibility. Participate in code reviews and maintain coding standards. Nice-to-Have Experience ...

Full Stack Engineer

Hiring Organisation
Fortice
Location
City of London, London, United Kingdom
experience (AWS, Azure, or GCP) Strong experience with Java or Python Front-end experience using modern JavaScript frameworks (e.g. React, Angular, Vue) Familiarity with RESTful APIs, databases, and version control Experience working in agile delivery environments Desirable DevOps or CI/CD exposure Experience working in a consultancy or client ...

Senior Full-Stack Engineer

Hiring Organisation
EC1 Partners
Location
City of London, London, 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 ...

Senior Backend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, Farringdon, United Kingdom
Employment Type
Contract
Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
managing records, and integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling ...

Guidewire Insurance Integration Architect

Hiring Organisation
Accenture
Location
City of London, London, United Kingdom
Architect scalable, high-performance, and secure integration solutions for Insurance policy, billing, and claims platforms including Guidewire InsuranceSuite Define API-first integration strategies using RESTful API services to enable seamless data exchange between insurance applications, reinsurers, brokers, and third-party platforms. Implement microservices-based integration patterns for core insurance applications. ...

Full Stack Engineer

Hiring Organisation
Response Informatics
Location
City of London, London, United Kingdom
using Spring Boot on AWS EKS/Kubernetes . · Manage data storage and analytics pipelines using PostgreSQL and Amazon Redshift . · Build and maintain RESTful APIs for mobile and web applications. · Collaborate with mobile development teams (iOS and Android) for end-to-end integration. · Implement CI/CD pipelines ...

AEM Backend Developer

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
System Integration: Integrate AEM with other core systems and Adobe Experience Cloud products (like Adobe Analytics, Adobe Target, and Adobe Campaign) using APIs (e.g., RESTful). · Deployment and Support: Participate in the deployment process, conduct unit and system testing, and troubleshoot/debug issues in AEM environments. · Best Practices: Ensure ...

Full Stack Laravel Developer (TALL Stack)

Hiring Organisation
Christy Media Solutions
Location
City of London, London, United Kingdom
experience using Tailwind CSS to implement modern, responsive UI designs. Experience with Alpine.js, Livewire, and vanilla JavaScript. Strong understanding of MySQL, Eloquent models, and RESTful APIs. Experience integrating third-party APIs and webhooks. Familiarity with Git and collaborative code management. Strong understanding of object-oriented programming principles. Ability to thrive ...

Back End Developer

Hiring Organisation
YEO Messaging
Location
City of London, London, United Kingdom
Nest.js and Express.js . ● Design, implement, and optimize SQL (PostgreSQL) and NoSQL (MongoDB) databases. ● Utilize Prisma ORM for efficient database interactions. ● Develop and optimize RESTful APIs and GraphQL APIs (Apollo) . ● Implement WebSockets for real-time communication. ● Ensure API security using JWT, OAuth , and other authentication mechanisms. ● Perform unit testing ...

Senior Software Engineer (Python)

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
scalable Python-based applications and microservices . Developing internal tools and automation to support both client delivery and internal teams. Building, testing, and deploying RESTful APIs using frameworks like FastAPI or Django REST Framework . Collaborating with data and platform engineers to integrate new features and optimise performance. Ensuring robust ...

Senior Data Analyst

Hiring Organisation
LatentView Analytics
Location
City of London, London, United Kingdom
Looker, including data source optimization and dashboard automation Proficiency in Python or R for scripting, data analysis, and automation Familiarity with APIs, RESTful data integration, and Git-based workflows Experience with A/B testing frameworks, statistical analysis, or experimentation design preferred Knowledge of Customer Success or Support Operations KPIs ...

AEM Developer

Hiring Organisation
Airswift
Location
City of London, London, United Kingdom
JavaScript/React/Angular) into AEM. Integrate AEM with other systems and Adobe Experience Cloud products (Adobe Analytics, Adobe Target, Adobe Campaign) using RESTful APIs. Participate in deployment, testing, and troubleshooting in AEM environments. Ensure code quality, security, and performance following best practices in an Agile environment. Must-Have ...

Python Developer

Hiring Organisation
Propel
Location
City of London, London, United Kingdom
Familiarity with frameworks such as FastAPI (Python). ● Proficiency in working with databases like PostgreSQL, MySQL, MongoDB, or Cassandra. ● Experience in developing and consuming RESTful APIs. ● Knowledge of containerization and orchestration tools like Docker and Kubernetes. ● Experience with cloud platforms such as AWS, GCP, or Azure. 📅 Contract Details Outside IR35 ...

Senior Java Engineer

Hiring Organisation
My Finance Club
Location
City of London, London, United Kingdom
experience Architected, designed, and led development of a microservices solution using Spring Boot Experience of Docker and AWS (ideally EventBridge & SQS) Experience of implementing RESTful web services Experience of unit testing using Junit, mocking frameworks and integration testing Experience of deploying into and using AWS services including ...

Senior Data Engineer

Hiring Organisation
Acxiom UK
Location
City of London, London, United Kingdom
similar role, with a demonstrable track record of leading large-scale projects. Familiarity with Airflow, Dagster or similar data orchestration frameworks Strong understanding of RESTful APIs as well as experience working with both synchronous and asynchronous endpoints Experience with Snowflake or Redshift with a strong understanding of SQL. Proficient ...

Senior Full Stack Engineer

Hiring Organisation
WeDo
Location
City of London, London, United Kingdom
happy to look at people from Node, Go, Java, C#, Ruby or Python backend) who are willing to cross train to Go Design & consume RESTful APIs + microservice components Contribute to system performance, reliability, observability About you as a person: Surface issues early instead of firefighting late Take ownership without ...

Front End Developer

Hiring Organisation
Cheil United Kingdom
Location
City of London, London, United Kingdom
CSS3/SASS, JavaScript, working knowledge of ReactJS Experience of templating e.g., Handlebars, task runners e.g., Gulp, Yarn Good API knowledge and use of Restful services Knowledge of analytics and tracking You know your way round cross-browser ‘quirks’ & nuances & responsive web development Plus, ideally Adobe Experience Manager – page creation ...

Senior Backend Engineer (Telco Integration Lead) Golang

Hiring Organisation
Ventula Consulting Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
band data channel connecting to our founding members' network API gateways. ? Architect and implement a carrier-agnostic, vendor-agnostic connector layer to consume RESTful APIs from a heterogeneous global landscape of telco partners and IMS vendors (e.g., Nokia, Ericsson, Mavenir). ? Serve as the primary technical liaison to the engineering ...