26 to 50 of 328 Permanent React Jobs in the Thames Valley

Developer candidates should be able to demonstrate strong knowledge of: .NET Core/ASP.NET MVC, C# and Azure SQL. Any experience in the following is desirable: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. Training will be provided in any of the More ❯

first development Knowledge of accessibility standards and best practices Excellent problem-solving skills and attention to detail with strong communication and collaboration skills Experience with front-end frameworks like React or Angular Familiarity with version control systems like Git and DevOps Knowledge of Agile methodologies and practices Experience with user research and usability testing The Where and When This is More ❯

Senior Software Engineers - TypeScript, React, Node - London - £80-110K+10% bonus, Slough Client: Oliver Bernard Location: Slough, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 5 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Finance/FinTech 3-days p/week onsite in London A London-based FinTech that is a trusted partner to the world … and private banks across private equity, credit, infrastructure, and impact to develop innovative solutions for private banks and wealth managers. Requirements: Computer Science or STEM education Strong experience with React, TypeScript, HTML, CSS, and web technologies Strong backend experience with TypeScript, e.g., Node.js, NestJS, and Express Commitment to maintaining high-quality software through automated testing tools such as Jest and More ❯

understanding of Software Development and Software Testing and you will have a strong understanding of multiple programming languages, such as, C++, C, C#, .NET Core, Java, JavaScript, Node.js, Angular, React or similar. You will also have/be: Experience in creating application security strategies, standards, best practices, and providing direct input to project teams and business stakeholders is essential. Experience … Application Security Architect, SDLC, Secure by Design, Architecture, Software Development, Engineering, DevOps, InfoSec, Security, Security Strategy, Best Practice, Programming, Code, C++, C#, C, .NET Core, Java, JavaScript, Node.js, Angular, React, OWASP, Agile, Application Threat Modelling, Security Policy, Security Controls, ISO 27001, NIST, GDPR, Cloud, Azure. Please note that due to a high level of applications, we can only respond to More ❯

requirements: Must be eligible for SC Clearance Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. More ❯

requirements: Must be eligible for SC Clearance Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. More ❯

requirements: Must be eligible for SC Clearance Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. More ❯

requirements: Must be eligible for SC Clearance Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. More ❯

building APIs/RESTful services Good knowledge of MSSQL Knowledge of Microsoft Azure Experience with Agile Scrum methodology Strong communication and problem-solving skills Desirable: Web API Experience with React, Vue, Angular 2+ or similar frameworks Microservice architecture experience Unfortunately, they are not able to offer relocation or visa sponsorship. Please do not apply if you require sponsorship or cannot More ❯

in the Software Development Life Cycle (SDLC), with a strong understanding of software development, testing, and multiple programming languages such as C++, C#, .NET Core, Java, JavaScript, Node.js, Angular, React, or similar. You will also have: Experience creating application security strategies, standards, and best practices. Experience working with security issues in software architecture, development, including static/dynamic analysis, dependency More ❯

This role will require 1-2 days per week onsite in Milton Keynes, with the remainder remote. Responsibilities: * Design, build and test complex full-stack applications using Java and React * Develop secure software solutions, integrating open-source and proprietary technologies * Contribute to API design and system architecture for private cloud and air-gapped environments * Work closely with end-users, solution … maintain strong configuration control What we're looking for: * Strong experience in back-end development, ideally with Java and/or Python * Front-end development experience using JavaScript and React * Good knowledge of relational databases and both Linux and Microsoft environments * Familiarity with secure DevOps principles and containerisation tools (e.g. Docker) * Confident communicator with strong documentation and solution design skills … about building secure, mission-critical software and want to work on high-impact public sector projects, we would love to hear from you. Keywords: Full Stack Developer, Java Developer, React Developer, SC Clearance, Public Sector IT, Secure Software, DevOps, Docker, API Design, Cloud Engineering, Defence Software, Agile Developer, Software Engineer Milton Keynes, Security Cleared Developer, Government Projects, JavaScript, Python, Open More ❯

Provide guidance and support to engineers through pair programming, code reviews, and career planning. Help foster their growth within Allica. Feature Delivery Responsibilities Design & Development: Design, implement, and maintain React-based frontend applications using modern JavaScript frameworks (React, Typescript, Redux, etc.). Feature Deployment: Contribute to the smooth deployment of new features and applications, ensuring they are production-ready and … features. Quality Assurance: Contribute to ensuring the highest quality in all frontend applications through testing, documentation, and code reviews. Testing: Implement automated testing using tools such as Jest and React Testing Library , and contribute to the development of end-to-end tests using Cypress . Key Skills & Experience Core Frontend Expertise: Demonstratable experience in in JavaScript , Typescript , and React (including … Hooks). Testing Experience: Experience in unit and integration testing with Jest and React Testing Library . Familiarity with end-to-end testing using Playwright , Cypress , or similar frameworks. CI/CD & DevOps: Understanding of CI/CD pipelines and modern DevOps tools. Familiarity with Azure DevOps Pipelines is a plus. UX/UI Understanding: Familiarity with UX/UI More ❯

and are looking for ways to implement Machine Learning and improving DevOps in their process to further add value to their Authors. Their overall technology stack includes: Django, Flask, React, MongoDB, PostgreSQL, SQLserver, Docker and is currently being hosted in Azure. They've recently introduced Terraform and will also be moving their containerization to Kubernetes. On the frontend, they're … databases. Knowledge of git and branch management. Excellent written and spoken communication skills. Fun to work with, great teamwork and collaboration skills. Desirable (not essential!): Technical Writing TypeScript and React DevOps (particularly managed infrastructure on Azure, CI/CD, IaaS) This role is looking to have someone based out of their London office for two days per week. If you More ❯

by big, proprietary datasets. Some things you might tackle in your first year: Scale and refine our product to serve large enterprise users Contribute to customer-facing features using React, Node.js, GraphQL, and Postgres Improve performance and reliability across our data-heavy frontend Join user interviews and work closely with design to make thoughtful, human-focused UX decisions Take part … your background — whether you've worked in startups, agencies, or enterprise. What matters to us is that you: Are strong in full stack TypeScript , with real-world experience in React and Node.js Are comfortable in fast-moving, semi-structured environments Care about the details — from data modeling and testing to UI polish and user experience Can empathise with customers , not … just code for them Communicate clearly and collaborate across disciplines Have a broad sense of ownership: you ship, test, debug, and iterate ?️ Our Stack Frontend : React, TypeScript, Effect-Rx, Styled Components, Storybook, Apollo GraphQL Backend : Node.js, Effect-TS, Postgres (Prisma), Redis, Snowflake, Infra : Docker, Pulumi, Kubernetes (Digital Ocean), CI/CD (GitHub Actions), Netlify Tools : Linear, Slack, Notion ? What You More ❯

and 2 days from home. Essential experience: Degree in STEM subject from a Russell Group or Red Brick University Experience leading software development teams Knowledge of either C# or React Strong experience with SQL Source control, ideally Git Agile Any experience in the following would be advantageous: Latest versions of .NET AI, Machine Learning JavaScript, TypeScript and associated frameworks Containers More ❯

and 2 days from home. Essential experience: Degree in STEM subject from a Russell Group or Red Brick University Experience leading software development teams Knowledge of either C# or React Strong experience with SQL Source control, ideally Git Agile Any experience in the following would be advantageous: Latest versions of .NET AI, Machine Learning JavaScript, TypeScript and associated frameworks Containers More ❯

experience Cloud/Azure experience Willingness to learn Knowledge of software project lifecycles Ideally experience in any of the following would be beneficial, ASP.NET, JavaScript, AngularJS, Web API, Typescript, React JS, Nuget, Blazor If you are ready for your next challenge within C# Developer role and looking for a good work/life balance with hybrid working, apply today! Due More ❯

and Serverless technologies) Agile development – Scrum, Kanban, TDD, BDD Nice to have Skills: Good understanding of container technologies (Docker and Kubernetes) Experience of Single page application frameworks (Angular/React) Practical experience of development using Kafka/RabbitMQ Experience in large scale integration projects involving messaging, web services and distributed systems Public Sector experience More ❯

strong engineering principles Mentor junior developers and contribute to improving team processes Essential Skills: .NET Framework and .NET 6, ASP.NET Core/MVC C# JavaScript frameworks: Angular, Vue.js, or React MySQL Git or similar source control tools Experience with logging/monitoring tools: Elasticsearch, Rollbar, Sentry, Jira Unit testing frameworks: xUnit, NUnit, Jest, or Jasmine Agile development methodologies Desirable Experience More ❯

proficiency in .NET, C#, ASP.NET MVC, and enterprise-scale Microsoft SQL Server (design, development, performance tuning). Front-End Skills: Expert in JavaScript or JavaScript Web Frameworks (e.g., Angular, React). Agile Proficiency: 5+ years of practical experience with Agile development methodologies. DevOps & SCM: Working experience with source code management (SCM) and DevOps automation. Proficiency with Microsoft Visual Studio IDE More ❯

Lead and mentor a team of developers, ensuring high-quality code, best practices, and adherence to agile development methodologies. Full-Stack Development – Design, develop, and maintain platform features using React (frontend), Node.js (backend), Directus (CMS), PostgreSQL, MongoDB, and APIs. Matrix/Synapse Integration – Develop and maintain real-time messaging and collaboration features using Matrix/Synapse for decentralised communication. Cloud More ❯

MongoDB. Hands-on experience with architecture and design patterns, including documentation of design trade-offs for commodity trading systems. Familiarity with AWS services, C#/Java, Docker, OpenShift, Kubernetes, React, and Infrastructure as Code (Terraform). Experience with integration techniques such as real-time messaging (AMQ), API design (JSON, Swagger), and batch processing. Familiarity with DevOps practices, CI/CD More ❯

Lead and mentor a team of developers, ensuring high-quality code, best practices, and adherence to agile development methodologies. Full-Stack Development – Design, develop, and maintain platform features using React (frontend), Node.js (backend), Directus (CMS), PostgreSQL, MongoDB, and APIs. Matrix/Synapse Integration – Develop and maintain real-time messaging and collaboration features using Matrix/Synapse for decentralised communication. Cloud More ❯

Lead and mentor a team of developers, ensuring high-quality code, best practices, and adherence to agile development methodologies. Full-Stack Development – Design, develop, and maintain platform features using React (frontend), Node.js (backend), Directus (CMS), PostgreSQL, MongoDB, and APIs. Matrix/Synapse Integration – Develop and maintain real-time messaging and collaboration features using Matrix/Synapse for decentralised communication. Cloud More ❯

Lead and mentor a team of developers, ensuring high-quality code, best practices, and adherence to agile development methodologies. Full-Stack Development – Design, develop, and maintain platform features using React (frontend), Node.js (backend), Directus (CMS), PostgreSQL, MongoDB, and APIs. Matrix/Synapse Integration – Develop and maintain real-time messaging and collaboration features using Matrix/Synapse for decentralised communication. Cloud More ❯