26 to 50 of 1,664 JavaScript Jobs in the UK

Software Engineer, Full-Stack Applications (Associate Director)

Location
Greater London, England, United Kingdom
applications using Java and Springboot Hands-on React experience developing modern, responsive, and scalable web applications in production environments. Strong experience with TypeScript/JavaScript, HTML, CSS, and modern frontend development practices. Experience designing and developing RESTful APIs and integrating with third-party services. Solid understanding of software design principles ...

Lead .NET Developer

Hiring Organisation
Hippo Digital
Location
London, England, United Kingdom
full development lifecycle delivering user-centred digital solutions. Advanced full stack developer skills using C#, F#, ASP.NET MVC, HTML, CSS, and JavaScript. JavaScript library and framework experience is preferable – Node, React, Angular. Containerisation expertise – Docker or Kubernetes or similar. Expert knowledge of Microservices design and architecture, including RESTful API Services. ...

Lead Software Engineer, Full-Stack Applications - AI Fluent (London)

Location
Greater London, England, United Kingdom
applications using Python or .NET Hands-on React experience developing modern, responsive, and scalable web applications in production environments. Strong experience with TypeScript/JavaScript, HTML, CSS, and modern frontend development practices. Experience designing and developing RESTful APIs and integrating with third-party services. Solid understanding of software design principles ...

Senior Software Engineer (Full Stack)

Location
Belfast City District, Northern Ireland, United Kingdom
Engineer in Typescript in a professional environment. Front-end skills Proficient in HTML5, CSS3, and Typescript Proficient in React, Redux, ReactQuery Experience with modern JavaScript frameworks - React Knowledge of version control systems (Git) Understanding of cross-browser compatibility Familiarity with RESTful APIs, GraphQL and Websockets Experience with CSS pre-processors ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
administration; languages and VMs: advanced Python (must-have) plus ideally substantial JVM (Java or Scala), .NET (C#), Rust, or Go expertise; Typescript and Javascript (must-have); Node.js (ideal); APIs: RESTful APIs (must-have); GraphQL (desirable); MCP (desirable) or A2A (desirable); web frameworks (Django (must-have)) and front-end frameworks (React ...

Senior Software Engineer (Java, .NET, Python)

Hiring Organisation
Sanderson Recruitment Plc
Location
South West, United Kingdom
Employment Type
Permanent
Salary
GBP 50 - 85 Annual
Skills: T-Shaped/Polyglot Mindset: Deep experience in at least one core stack ( Java/Kotlin , Python , C#/.NET , or Full-Stack JavaScript including Express, React, and Node.js), paired with the adaptability to learn new technologies rapidly. Engineering Excellence: Extensive full-stack experience encompassing system design, testing ...

Java Full Stack Engineer

Hiring Organisation
Sanderson Government and Defence
Location
United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£55,721
including AWS and Azure Skills and Experience Essential Extensive experience building microservices using Java and Spring Boot Experience developing front-end web applications using JavaScript and/or TypeScript, React, HTML and CSS Experience using Git for version control Experience with repository management platforms such as GitHub or GitLab Experience ...

Senior AI Software Engineer / AI Model Specialist

Location
Greater London, England, United Kingdom
written and verbal communication skills in English. Ability to work independently and within distributed international teams. Programming Languages Technical Skills Python (Expert Level) C# JavaScript/TypeScript SQL AI & Machine Learning Machine Learning Deep Learning Neural Networks Natural Language Processing (NLP) Generative AI Large Language Models (LLMs) Retrieval-Augmented Generation ...

Senior Software Developer ( SC Cleared )

Location
Greater London, England, United Kingdom
Requirements Essential Skills: Strong full-stack development capability across backend, databases, and front-end applications Strong hands-on full-stack development experience using Node.js(JavaScript/TypeScript), backend frameworks (e.g., Express) and modern front-end frameworks (Angular preferred) with additional experience in Java (Spring Boot) Experience with AWS serverless architectures ...

Experienced .NET Engineer

Location
Maidstone, England, United Kingdom
following: .NET Core 3.1 ASP.NET MVC (Core), Razor Pages, Blazor EF Core Azure (Web Apps, Serverless, Messaging, SQL Server/CosmosDB) HTML, CSS and JavaScript frameworks (React/Angular) CI/CD tools (Azure DevOps, CircleCI) Entity Framework Nice to Have Experience with API design (REST, JSON) Knowledge of distributed ...

Junior Full Stack R&D Software Developer

Location
Harwell, England, United Kingdom
modern software engineering practices including use of **AI** across the development cycle* Familiarity with front-end technologies such as **Angular, HTML, CSS, and JavaScript/TypeScript*** Understanding of software testing, debugging techniques, and software quality best practices* Strong analytical and problem-solving skills, with the ability to learn new technologies ...

Junior Full Stack R&D Software Developer

Location
Harwell, England, United Kingdom
modern software engineering practices including use of AI across the development cycle Familiarity with front-end technologies such as Angular, HTML, CSS, and JavaScript/TypeScript Understanding of software testing, debugging techniques, and software quality best practices Strong analytical and problem-solving skills, with the ability to learn new technologies ...

Principal Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
United Kingdom
Employment Type
Permanent Contract, Remote
Salary
£90,000
focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (we've used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record of leading software ...

Lead Full-Stack Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
United Kingdom
Employment Type
Permanent Contract, On-site
Salary
£85,000
design, development, testing, and deployment. Some of the languages and frameworks our teams work with: Java/Kotlin Python C#/.NET Full stack JavaScript (Express, React, Node.js etc.) We expect you to have deep experience in at least one of the above; you will also be flexible and comfortable ...

Lead Full-Stack Software Engineer UK Wide

Location
United Kingdom
design, development, testing, and deployment. Some of the languages and frameworks our teams work with: Java/Kotlin Python C#/.NET Full stack JavaScript (Express, React, Node.js etc.) We expect you to have deep experience in at least one of the above; you will also be flexible and comfortable ...

Full Stack Developer (.Net/React)

Hiring Organisation
Sanderson Recruitment
Location
Peterborough, East Anglia, United Kingdom
Employment Type
Temporary Contract, Hybrid
Salary
£500 - £550 per day
join a high-performing engineering team delivering modern web applications in an enterprise environment. Essential Skills Strong commercial experience with React TypeScript and modern JavaScript (ES6+) C#/.NET Core REST API development and integration HTML5, CSS3 and responsive UI development Git and Agile delivery practices Desirable Node.js Azure ...

Automation Engineer

Hiring Organisation
ARM
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £650/day Inside IR35 (Market rate)
some or all of the following: Test Automation Selenium Cypress Playwright Test automation frameworks End-to-end testing API testing Programming Java Python JavaScript TypeScript API & Quality Engineering REST Assured Postman Bruno REST APIs Test strategy and quality assurance principles DevOps & CI/CD Jenkins GitHub Actions GitLab ...

Application Support & Developer

Location
Stoke-on-Trent, England, United Kingdom
qualification or equivalent practical experience. Experience or practical knowledge of software development and/or application support . Good technical knowledge of TypeScript and JavaScript , with experience or an understanding of React . An understanding of relational databases and SQL , ideally including PostgreSQL . The ability to understand existing application ...

Software Engineer (Java, .NET, Python)

Hiring Organisation
Sanderson Recruitment Plc
Location
North, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 80,000 Annual
Skills: T-Shaped/Polyglot Mindset: Deep experience in at least one core stack ( Java/Kotlin , Python , C#/.NET , or Full-Stack JavaScript including Express, React, and Node.js), paired with the adaptability to learn new technologies rapidly. Engineering Excellence: Extensive full-stack experience encompassing system design, testing ...

Graduate Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
internships, placements, graduate roles, bootcamps, or personal projects) Understanding of software engineering principles and development methodologies Experience or academic exposure to: HTML, CSS and JavaScript React or similar frontend frameworks Python development REST APIs SQL and relational databases Git and version control Strong analytical and problem‐solving skills Excellent communication ...

Test Analyst

Location
City Of London, England, United Kingdom
Dynamics. Financial Services, Banking, HR, Payroll or Finance Transformation. Performance, Accessibility, Mobile or Cloud Testing. Experience with CI/CD pipelines, Git, Java, Python, JavaScript or C# would also be beneficial. Qualifications ISTQB Foundation or Advanced Level certifications, BCS Software Testing qualifications or equivalent industry experience would be advantageous. Relevant ...

Senior Software Engineer - Cloud

Location
Cambridge, England, United Kingdom
APIs A backend web framework (e.g. Micronaut, Spring) Google Cloud or an equivalent cloud service provider (e.g. AWS, Azure) HTML, CSS and TypeScript or JavaScript React or an equivalent frontend technology (e.g. Angular) Containerisation (e.g. Docker, Podman) Automated testing (e.g. JUnit, Mockito, pytest) Automated build and deployment pipelines Version control ...

Senior AI & Integration Engineer – C# / .NET / Azure

Hiring Organisation
Adria Solutions Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum
Graph, Teams and SharePoint integrations. Azure AI services, document processing and retrieval-based solutions. Logic Apps, API Management, Service Bus and Key Vault. TypeScript, JavaScript or Python. Docker, infrastructure as code or Model Context Protocol. Salary & benefits £70,000–£75,000 salary. Four days working from home- one office Flexible ...

Software Developer

Hiring Organisation
Innovation24 Ltd
Location
Stockport, United Kingdom
Employment Type
Permanent Contract, Full Time, On-site, Hybrid
Salary
£50,000
working knowledge of Microsoft Azure services and cloud-based development. Experience with Microsoft SQL Server, T-SQL, and database development. Experience with HTML, CSS, JavaScript, and modern frameworks such as React or Angular. Understanding of software design, development, testing, and deployment practices. Knowledge of secure software development principles. Experience working ...

Software Engineer

Location
United Kingdom
when needed QUALIFICATIONS AND EXPERIENCE About you The ideal Software Engineer: Strong commercial experience with Python Experience with React and Next.js Good knowledge of JavaScript and/or TypeScript Experience designing and consuming RESTful APIs Experience with relational databases such as PostgreSQL, MySQL or SQL Server Strong HTML ...