51 to 75 of 4,860 JavaScript Jobs in the UK

5+ years of professional software engineering experience , with demonstrable experience across frontend, backend, and infrastructure. Proficient in modern frontend frameworks (e.g., React, Next.js, Vue.js) with a strong grasp of JavaScript/TypeScript, HTML, and CSS. Backend engineering experience with one or more languages (e.g., Node.js, Go, Python, Java, etc.), and familiarity with API design (REST, GraphQL, or gRPC). Frontend More ❯

to articulate in both technical/non-technical terms depending on audience. The full development lifecycle delivering user-centred digital solutions. A front end developer using HTML, CSS, JQuery & JavaScript, utilising frameworks such as React and Node. Understanding web performance, accessibility and web security best practices. Experience of developing native mobile applications for mobile and offline users using React Native More ❯

strategy, influencing the direction of our engineering culture and practices while helping us build an environment where developers thrive and create meaningful change. Our Tech Stack Languages: TypeScript/JavaScript, C# Libraries and frameworks: React, Next.js, Node,js, .NET Testing: Vitest, PlayWright, Pact, K6 Datastores: PostgreSQL, CosmosDB, Redis Infrastructure and DevOps: GitHub Actions, Azure, Kubernetes, Docker, Terraform Monitoring: Grafana, Azure More ❯

the Scrum framework and utilising Azure DevOps to facilitate that work. Proficient in programming languages and tooling as follows: NET Core/.NET Framework, C# HTML/CSS/Javascript TypeScript, AngularJS, KnockoutJS QA tooling such as - Selenium, Playwright, Spectflow, Reqcnroll Azure DevOps, Git, Deployment Pipelines, Terraform Massaging Queues, API's: SOAP & REST Demonstrated expertise in building REST APIs for More ❯

the Scrum framework and utilising Azure DevOps to facilitate that work. Proficient in programming languages and tooling as follows: NET Core/.NET Framework, C# HTML/CSS/Javascript TypeScript, AngularJS, KnockoutJS QA tooling such as - Selenium, Playwright, Spectflow, Reqcnroll Azure DevOps, Git, Deployment Pipelines, Terraform Massaging Queues, API's: SOAP & REST Demonstrated expertise in building REST APIs for More ❯

in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite . GenAI Frameworks : Familiarity with tools like LangChain , LangGraph , CrewAI , or Vercel AI (in Python or JavaScript). LLM experience : Practical experience with Large Language Models (LLMs) such as OpenAI , Anthropic , Mistral , or Llama , and tools like Ollama . Cloud Platforms : Proficiency in AWS or Azure for More ❯

patching strategies Environment strategy (Dev/Test/Prod) and release gating Git workflows (feature branching, pull requests) Confident in extending the functionality of Power Platform using C#, .Net, JavaScript/TypeScript to enable client-side logic. Able to lead on architecture and solution governance, transforming business requirements into scalable, maintainable solutions, including: Establishing naming conventions, environment strategy, security model More ❯

Job Description: Role Highlights: Location: Hybrid - Reading, Croydon Type: full-time Job Title: Java Full stack Software Engineer Job Description: Opportunity for talented Full Stack Software Engineer to join collaborative engineering team. This role will focus on design, architecture, and More ❯

Heatly recently welcomed United Living Group as a majority shareholder. The strategic partnership underpins our future growth by providing the financial strength and industry needed to expand our services and reach. United Living Group's investment enables Heatly to enhance More ❯

We're looking for a driven and curious Software Development Engineer with strong full stack experience. If you're passionate about creating intuitive user interfaces, have expertise in modern JavaScript frameworks, micro frontend architectures, and can reason about product development to contribute to overall end-to-end architecture, this is the opportunity for you. You'll contribute to our modern … in evolving our platform that powers real-time decision-making for our business. In This Role, You Will Design and develop responsive, performant, and accessible user interfaces using modern JavaScript frameworks (e.g., React), advanced front-end technologies, and TypeScript. Architect and implement micro frontend solutions to enable scalable, modular, and independently deployable frontend applications. Develop server-side applications and APIs … practices and patterns. Participate actively in technical discussions, design reviews, and code reviews. Continuously learn and grow your understanding of modern front-end technologies, micro frontend patterns, server-side JavaScript, and best practices. Work with RESTful APIs and GraphQL to integrate front-end applications with backend services. Support and improve CI/CD pipelines and implement robust front-end testing More ❯

this position, your core duties and responsibilities will include (but will not be limited to): Helping develop and maintain efficient, reusable, and reliable frontend code using HTML5/CSS3, JavaScript, TypeScript, and React Working closely with cross-functional teams, including UI/UX designers, backend developers, and product managers, to deliver high-quality user interfaces Ensuring the technical feasibility of … and productivity Staying up to date with the latest industry trends and technologies to ensure our applications are built using the best practices Our Technology Stack Frontend App Framework - JavaScript/TypeScript/React Frontend State Management - Mobx Backend – Java REST/GraphQL Services CI/CD - GitHub/CircleCI Cloud – AWS What we are looking for A Bachelor's … Technology, or a related field Mid to senior level experienced developer Demonstrable success and involvement in software design and implementation of production-ready clients using technologies such as: HTML5, JavaScript, CSS3, Typescript, and React Experience with APIs and using patterns such as REST and GraphQL Experience with testing frameworks and methodologies, ensuring the delivery of high-quality software Strong problem More ❯

We're seeking a Senior Full-Stack Developer with 10+ years of experience in software development and 7+ years in backend development using JavaScript/TypeScript and Node.js. Must have strong full-stack skills with React, deep knowledge of cloud platforms (AWS, Azure, or GCP), and experience with serverless architecture, Docker/Kubernetes, and microservices. Proficiency with Git, CI/ More ❯

We're seeking a Senior Full-Stack Developer with 10+ years of experience in software development and 7+ years in backend development using JavaScript/TypeScript and Node.js. Must have strong full-stack skills with React, deep knowledge of cloud platforms (AWS, Azure, or GCP), and experience with serverless architecture, Docker/Kubernetes, and microservices. Proficiency with Git, CI/ More ❯

following, and be capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling … following, and be capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling More ❯

problems, and provide effective solutions. Knowledge of database concepts and querying in IBM DB2, Oracle DB, and MS SQL Server. Experience in programming languages including some of Python, Typescript, JavaScript, R, Java, C#, producing services, APIs, Function Apps or Lambdas. Strong understanding of core object-oriented concepts with good knowledge of Java, Web services, JavaScript, Json, XML, JDBC, and other More ❯

best practices, and help mentor more junior developers. Key responsibilities: Build and maintain scalable web applications using C#, .NET 6, ASP.NET Core/MVC Frontend development using TypeScript/JavaScript and modern frameworks (Angular, Vue, or React) Design and develop APIs and backend logic using SQL Server and MySQL Collaborate in an Agile environment (Scrum, Sprints, Stand-Ups) Participate in More ❯

issues. Experience with recruiting, managing, and developing engineers or other deeply technical contributors. Deep knowledge and use of at least one common web backend language: e.g., Python, Scala, Java, JavaScript (Node.js) including toolchains for documentation, testing, and operations/observability. Developing and deploying applications in a cloud environment like Google Cloud (preferred), AWS, Azure Strong experience with modern software development … tools/ways of working (e.g. git/GitHub, DevOps tools, metrics/monitoring, ...) Proficiency in front-end technologies: JavaScript, Typescript, React.js, Angular.js or similar. API development using technologies and standards like REST/GraphQL/gRPC or similar. Experience in an open-source web framework preferably implemented in Python, Java, Scala, or similar. Experience with Authentication & Authorisation Mechanisms More ❯

applications. Develop scalable, cloud-based solutions considering security and performance. Harness modern development practices including CI/CD, containerization, and automated testing. Skills and Experiences Programming: C#/.NET, JavaScript/TypeScript Service Development: building web applications and APIs using .NET and cloud services Cloud: Azure and others Database: SQL Server, Azure SQL, Entity Framework, CosmosDB Design & Style: HTML5, Responsive More ❯

to systems analysis and development. Application frameworks such as Spring Boot/Cloud. Microservice Architectures. Cloud Platforms such as AWS, GCP or Azure. Web technologies including HTML, CSS, advanced Javascript, Web Services. Continuous Integration/Continuous Delivery. BDD, pair programming. Agile development methods such as Scrum or Kanban. REST API development and/or consumption. Relational databases MySQL, SQL Server More ❯

development In-depth experience with Angular (version 17 and above) Strong foundation in C# .NET/.NET Core Solid understanding of web markup, including HTML5 and CSS3 Proficiency in JavaScript and TypeScript Experience with responsive and adaptive design Familiarity with RESTful APIs and backend service integration Proficiency with version control systems such as Git Excellent problem-solving skills and attention More ❯

Enterprise Architecture Patterns API Engineering: security, deployment, monitoring, API Gateway, micro-services .NET Technologies: .NET core 3.x, ASP.NET Core, Testing Framework, ASP.NET MVC, Web API Frontend Technologies: HTML, CSS, JavaScript, React Database: PostgreSQL, Oracle, or SQL Server DevOps: CI/CD, Ansible, Octopus Deploy, Docker, Git Experience in Agile environments (SCRUM, Kanban) Your First 90 Days Join our Immersive Bootcamp More ❯

and writing clean, maintainable code. What We’re Looking For Essential Skills: 3 years experience with C#/.NET Core and backend service development. Front-end development using modern JavaScript frameworks or Blazor/Razor . Familiarity with cloud infrastructure (Azure or AWS). Hands-on experience with CI/CD tools like GitHub Actions, GitLab, Jenkins, or Azure DevOps. More ❯

Object-Oriented Programming techniques Good knowledge of Scripting languages like Groovy Good knowledge of SQL and database systems such as Postgresql, MySQL, etc. Good knowledge of web standards (HTML, JavaScript, etc) Quick learner and adapter of new frameworks and technologies Attention to details and some creativity on how processes could be improved as well as business requirements could be met More ❯

to offer. ABOUT THE ROLE Tech Stack Backend: AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend: React/Next.js Programming: TypeScript; JavaScript, Python Infrastructure: Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will be responsible for guiding More ❯

end-to-end web or mobile development in an Agile environment supporting automated CI/CD pipelines. Possess strong communication and collaboration skills. Be experienced in Vue.js, React, Angular, JavaScript, and C# or Node.js, following best practices. Have experience building Microservice Architectures using ReST or GraphQL, .NET Core v3. Demonstrate a strong can-do attitude. Desirable Skills Delivered production-level More ❯