26 to 50 of 60 Contract React Jobs

vector databases (PG vector/croma DB) Hands-on Experience with GenAI Performance Evaluation tools like Pegasus, Ragas, DeepEval Create Conversational Interface with React JS or other Frontend components, Develop and deploy AI agents using LangGraph and ADK, A2A, MCP Strong programming skills in Python (experience with LangChain/LangGraph ...

Work model – Hybrid (3 days in an office) Location – London, UK We are seeking an experienced and results-driven Senior Java Full Stack Developer (React Mandatory) to join our team in London. This project is associated with one of the largest Bank. Key Responsibilities: Design, develop, and maintain robust, scalable … high-performance web applications. Build responsive and dynamic user interfaces using React js. Develop backend services and APIs using Java (Spring Boot/Spring Framework). Write clean, maintainable, and efficient code following best practices. Perform code reviews and mentor junior developers. Optimize applications for maximum speed and scalability. Ensure ...

Senior Web Application Developer ASP.NET MVC 5, C#, & React Location: Hybrid 3/4 days p/w onsite West London Must have right to work in the UK and located near West London 3 months contract (extension TBC) Start ASAP (Immediate start/within 2 weeks notice) Inside IR35 … experience with a strong portfolio in bespoke eCommerce and enterprise web applications. * Proven expertise on C#, ASP.NET MVC 5, SQL Server, Entity Framework, and React experience desirable to have HTML5, CSS3, JavaScript, jQuery. * Strong knowledge of Object-Oriented Programming, SOLID principles, and common design patterns. * Experienced in RESTful API design ...

Contract Node.js & React Engineer 6-month contract (extensions likely) £400 per day – Inside IR35 60% Hybrid – Newcastle, London, Leeds or BlackpoolOpus is working with a leading consultancy delivering high-impact services for a UK Government department. We’re looking for a Node.js & React Engineer with Nunjucks experience to help build … evolve accessible, high-volume digital systems. What You’ll Be Doing Building user-facing features using React & TypeScript Developing server-side functionality with Node.js Working with Nunjucks templating for government service patterns Supporting high-traffic, transactional systems Writing clean, test-driven code ( TDD/Jest ) Improving CI/CD pipelines ...

someone who enjoys solving complex technical challenges in a secure, mission driven setting. Key Focus of the Role Building quality, scalable applications using JavaScript , React , and Node.js Designing and deploying cloud native solutions on AWS , leveraging best-practice architectures Implementing and maintaining Infrastructure as Code using Terraform Contributing to secure ...

Senior Full-Stack Web Application Developer Role: Senior Web Application Developer (Full-Stack) Specialism(s): eCommerce, ASP.NET MVC 5, C#, React, Migrations, Microsites, Cloud-Native, HTML5/CSS3/JavaScript, API, CI/CD, IoC Containers, Agile Type: Contract, Daily Rate Duration: 3+ Months Location: London Pay Rate … supporting the journey toward a fully cloud-ready environment. Role Requirements * Develop and maintain complex web solutions using ASP.NET MVC 5, C#, and React * Support migration activities, ensuring clean architecture, scalable design, and efficient implementation * Produce secure, maintainable, scalable, and fault-tolerant code following SOLID principles and OO design patterns ...

maintaining high-performance, secure, and scalable CRM features across both frontend and backend systems. The ideal candidate will have strong experience with TypeScript, Node.js, React, and cloud-based architectures, along with experience working in microservices environments, building APIs, and managing customer-centric data systems. This position is offered … Design, develop, and maintain CRM platform features across the full stack Build scalable backend services using Node.js and TypeScript Develop modern user interfaces using React and Next.js Design and maintain relational and document databases (PostgreSQL, MongoDB) Build secure and performant RESTful APIs Implement scalable backend services and microservices Optimise application ...

Reduction System Integration Experience Required: Minimum 7 years' experience: Protocols: OAuth2, OIDC, SAML, and JWT (JSON Web Tokens). Development: JavaScript/Node.js/React, React, Angular or Vue. Identity Concepts: RBAC, ABAC and FGA. APIs: RESTful API design and M2M. Why work through Contechs? Contechs is a leading Automotive ...

easier to consume for the end users. Understand usability for service capability and automation scope. Change user exp, visualization. Skills mainly include Java technologies, Reactjs with flavor of UX and UI both. ...

from other locations The Role A Front-End Developer (Senior) is expected to have a deep understanding of front-end technologies such as React JS, HTML, CSS, and JavaScript. They should also have experience collaborating with designers and back-end developers and be able to optimize applications for performance … responsiveness. Your Responsibilities Responsible for the front-end build quality of responsive web sites/mobile apps using React native, HTML, CSS and JavaScript under frameworks like React.js aligning with software development standards. Good understanding of DevOps concept and Azure ADB2C. App deployment experience in iOS and Playstore. Understanding ...

week client-side working, with occasional travel required to the customer site. Key Responsibilities: Designing and developing modern, responsive front end interfaces using React and TypeScript Building real-time, data-driven features using technologies such as WebSockets or SignalR Collaborating with full stack engineers, architects, and end users to shape … defence or national security environments is advantageous but not essential Core Front End Skills: Proficiency in JavaScript Experience with front end frameworks such as React, Vue.js, or AngularJS Useful/Modern Front End Engineering Skills: Experience with Node.js (for tooling, SSR, or full stack JavaScript) Understanding of web servers/ ...

Java based microservices, applying test driven development and following established engineering standards. You'll work with technologies including Java, Spring Boot, Postgres, Kafka, Docker, React and AWS. You'll contribute to CI/CD pipelines, ensure non-functional requirements are met and collaborate with colleagues across engineering, analysis and design. …/CD pipelines (Jenkins or similar) Working in agile, multi-disciplinary teams Desirable experience Kafka Liquibase or similar migration tooling Swagger/OpenAPI Gradle React TypeScript Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built ...

delivering modern, responsive user interfaces, working closely with cross-functional teams and end users. Key Responsibilities Develop modern, responsive front end applications using React and TypeScript Build real-time, data-driven features (e.g. WebSockets/SignalR) Collaborate with engineers, architects, and users to define and deliver requirements Contribute to scalable … solutions Support containerised environments as part of the wider platform Produce clear documentation and prototypes Key Skills Strong JavaScript and front end development experience React (or similar frameworks such as Vue or Angular) Experience building responsive, user-focused interfaces Real-time data handling (e.g. WebSockets) Strong stakeholder engagement and collaboration ...

Build and configure applications using ArcGIS Enterprise components such as ArcGIS Portal, ArcGIS Server, and Data Store. Develop custom tools and widgets using JavaScript, React JS, ArcGIS Experience Builder, and related frameworks. Support GIS data integration, migration, and transformation using tools like FME. Implement server side components and web services … using ESRI technology. Designing of GIS components. Server-side programming in ESRI Experience in ArcGIS Experience builder app with COTS and custom tool through React JS. ArcGIS Portal and ArcGIS Server Proficiency in .Net or Java. Working knowledge of Spatial Indexing. Knowledge and experience with Web Services, Open standards ...

month contract based in London. It is hybrid and will require 2x days onsite per week. Key responsibilities Front end implementation for a React application Visualizing and interacting with scientific data and workflow progression Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high … across allied teams, to build an end-to-end pipeline consuming other data products Basic qualifications: Demonstrated experience with frontend software development (e.g. React) Demonstrated experience of Python development (e.g. using FastAPI) Bachelors degree in a relevant field (including computational, numerate or life sciences), or equivalent experience Cloud experience (e.g. ...

month contract based in London. It is hybrid and will require 2x days onsite per week. Key responsibilities Front end implementation for a React application Visualizing and interacting with scientific data and workflow progression Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high … across allied teams, to build an end-to-end pipeline consuming other data products Basic qualifications: Demonstrated experience with frontend software development (e.g. React) Demonstrated experience of Python development (e.g. using FastAPI) Bachelors degree in a relevant field (including computational, numerate or life sciences), or equivalent experience Cloud experience (e.g. ...

features across secure communications and decision support platforms Building and maintaining backend services using C# and related technologies Developing and enhancing user interfaces using React Contributing to security focused system design when working with highly sensitive data Taking ownership of work items, collaborating closely with engineers, product specialists and stakeholders … contributing to mentoring and technical discussions About You Strong commercial experience in backend development using C# and the .NET ecosystem Frontend development experience using React or a similar modern JavaScript framework Solid understanding of software engineering fundamentals and agile delivery practices Experience working in live production environments, ideally within regulated ...

into intuitive, high-performance analyst experiences. The Tech Ecosystem You will be working in a modern, distributed environment that prioritizes engineering excellence: Core Stack: React, Next.js, and TypeScript. Architecture: Micro-frontends (Capla/Vue) and Module Federation. Data: Integrating with Java/Spring Boot services via REST and GraphQL. Cloud … improvements. Who You Are The Professional: You have 4+ years of experience building production-grade web applications. The Specialist: Deeply proficient in TypeScript and React . A willingness to work within a Micro-frontend architecture is essential. The Collaborator: You enjoy working closely with Product, Design, and Compliance teams ...

into intuitive, high-performance analyst experiences. The Tech Ecosystem You will be working in a modern, distributed environment that prioritizes engineering excellence: Core Stack: React, Next.js, and TypeScript. Architecture: Micro-frontends (Capla/Vue) and Module Federation. Data: Integrating with Java/Spring Boot services via REST and GraphQL. Cloud … improvements. Who You Are The Professional: You have 4+ years of experience building production-grade web applications. The Specialist: Deeply proficient in TypeScript and React . A willingness to work within a Micro-frontend architecture is essential. The Collaborator: You enjoy working closely with Product, Design, and Compliance teams ...

frontend development across key products, working closely with compliance stakeholders to design and deliver intuitive, scalable solutions. Build and enhance modern web applications using React and TypeScript Work across a micro-frontend architecture Contribute to end-to-end feature development, from design through to deployment Collaborate with cross-functional teams … platform Challenge and improve existing processes and workflows Work with APIs (GraphQL & REST) to integrate backend services Skills & Experience: Essential: Strong frontend expertise with React & TypeScript Experience with GraphQL and REST APIs Background working in product-focused environments Experience in modern engineering practices (CI/CD, cloud environments, etc.) Ability ...

such as Python, SQL, and JavaScript for automation, data processing, and application development. Build custom and COTS-based solutions in ArcGIS Experience Builder using React JS. Spatial Analysis & Visualization Conduct geospatial analysis, cartographic design, and data visualization to support decision-making. Perform web map creation, service publishing, ArcGIS Portal content … Portal for ArcGIS content creation, administration, and deployment. Programming & Development Proficiency in .NET or Java, along with Python, SQL, and JavaScript. Experience with React JS for custom widget/tool development in Experience Builder. Knowledge of web services, open standards, and geospatial formats (XML, GML, KML). Database & Cloud Skills ...

team, as well as the wider development department. Development of Office 365 tools including SharePoint Online (PowerApps, Power Automate and SPFX or ReactJS). Providing scripts for database enquiry languages, i.e., T-SQL (SQL Server) and PL/SQL (Oracle) to provide both analysis and exporting data etc. based … problem solving abilities Quality-orientated and self-motivated. Hands on development with Office 365 tools including SharePoint Online (PowerApps, Power Automate and SPFX or ReactJS) Hands on experience with CSS, JavaScript, jQuery and HTML5 Solid Rest API and Graph API knowledge Early morning or late night shift working (occasionally). ...

support business and technical requirements Design, develop and maintain back-end services using Python Develop front-end solutions using modern JavaScript frameworks such as React Write and optimise SQL queries and data interactions Use Git for version control and collaborative development Ensure solutions meet security, performance, and quality standards Collaborate … Public Sector environment Required Skills & Experience Strong commercial experience as a Full Stack Developer Hands-on Python development experience Front-end development experience using React or similar frameworks Solid SQL knowledge for data access and manipulation Strong experience using Git-based version control Experience delivering solutions within secure or Public ...

than formalised, identifying upskilling needs and supporting teammates as opportunities arise. What we're looking for Essential: Strong full stack engineering capability across TypeScript, React, Node and AWS A genuine ownership mindset around automated testing and engineering-led quality Beneficial: React Native experience (mobile is in scope) Familiarity with Next.js ...

three, including migrating the application from, improving the Stripe integration, and implementing core tracking and SEO foundations, and more,. Tech Stack React, TypeScript, Next.js, Python (FastAPI), PostgreSQL, GCP (Cloud Run/SQL), Stripe, Firebase Auth, Terraform. Key Requirements Strong React/TypeScript and Next.js (SSR/SSG) Python/ ...