1 to 25 of 40 DemandTrendPermanent JavaScript Developer Jobs in the UK

Senior JavaScript Developer/Engineer (Web API Vue.js) London to £100k Do you have expertise with JavaScript combined with an engineering, problem-solving mindset? You could be progressing your career in a senior, hands-on Senior JavaScript Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior JavaScript Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. … You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment. There More ❯

Backend JavaScript Developer (Vanilla JS/TypeScript) - Fully Remote - Permanent - £40,000 - £70,000 DOE + Benefits - Sports Media & Online Publishing We are working with a successful and growing sports media and online publishing company that is expanding its digital platforms. They are looking for a talented Backend JavaScript/TypeScript Developer to join their small … in the sports media space, where your work will directly shape how millions of fans consume digital content. What you'll be working on: Developing backend systems using Vanilla JavaScript and TypeScript Building a brand-new video streaming player from scratch Delivering multiple greenfield projects across publishing and digital media Working in a small, agile, cross-functional team with … lots of influence on technical decisions What we're looking for: Strong server-side JavaScript (Vanilla JS) skills Solid experience with TypeScript Knowledge of build tools such as Gulp (or similar) Good understanding of HTML5 and CSS3 Previous experience in online publishing, video players, or media environments is highly desirable What's on offer: Fully remote, flexible working (UK More ❯

This Senior JavaScript Developer role is with a startup who are one of fastest growing in their field. They've just gone through a round of funding and need to up their productivity so are looking for an extra pair of hands to join their team in Mayfair. Good amount of tech on site including Python, React, Redux … and your tasks will include: Collaborating with designers Development of UI/UX components Create clean, consistent, tested code Mentor more junior members of the team The successful Senior JavaScript Developer will be rewarded with remote working options, 10% annual bonus, 25 days holiday, and up to £90,000 salary. Really slick interview process with no take-home More ❯

Contract Full-Stack JavaScript Developer Location: Onsite (5 Days/Week) Duration: 12 Months IR35 Status: Inside IR35 Rate: £600-£700/day Opus is partnering with a leading financial services firm on the hunt for a Contract Full-Stack JavaScript Developer to supercharge the UI of a high-impact platform. If you're passionate about More ❯

Senior/Lead Front-end JavaScript Developer - Consultancy (multiple locations available in the UK) - competitive salary and quarterly bonus ** Please note - due to the nature of work, all candidates must have enhanced DV clearance (UKIC/UK*C preferred) that is active and transferable We are looking for a Senior/Lead Front-end JavaScript Developer … mentorship to a team of developers, guiding them through best practices and ensuring high-quality code. Design, develop, and maintain front-end components of web applications using HTML, CSS & JavaScript Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Lead and participate in agile development processes, including … exceed expectations. Stay up to date with the latest industry trends and technologies, and drive continuous learning and innovation within the team. Preferred Experience Proficiency in HTML5, CSS3, and JavaScript (ES6+). Proven experience of Express.js and Nunjucks Experience using the GOV.UK Design System Familiarity with the GOV.UK CASA UI framework Experience with MongoDB and NoSQL variants writing robust More ❯

About the Job Java Javascript Developer - Financial Systems - Stratford East London Our Client is specialist software company developing software for the insurance sector. They are currently looking to recruit a Java and Javascript Developer with at least 2 to 5 years commercial experience. Must be familiar with creating UI, web service calls, SOAP. Any experience of More ❯

An established and growing business in the industrial supply sector is embarking on a major digital transformation and is looking to hire a JavaScript Developer to join its in-house technology team. This is a great opportunity to work on impactful software projects, including ERP customisation, integrations with third-party platforms, and development of internal digital tools. The … Role: As a JavaScript Developer, you'll be responsible for delivering scalable and reliable solutions across a wide range of systems. You'll contribute to internal development projects and help shape the future of the company's digital operations. Core responsibilities include: Developing and maintaining custom SuiteScript solutions and workflows within NetSuite. Optimising applications for speed and scalability. More ❯

Front End/JavaScript Developer Salary: Up to £40,000, depending on experience Location: Fully Remote Industry: iGaming Provider Overview We are looking for a motivated Front-End/JavaScript Developer to join a team and support the development of high-quality web and mobile games. This role offers a great opportunity to work within the … iGaming sector, collaborating with cross-functional teams to enhance game development processes. Key Responsibilities: Assist in developing and maintaining mobile and web-based games using JavaScript and Pixi.js Work closely with designers, artists, project managers, and testers to deliver engaging and well-optimised games Write clean, efficient, and maintainable code Support the implementation of Unit Tests to ensure code … timeframes and accurately log time spent on tasks Stay up to date with industry trends and best practices in front-end development Required Skills and Experience: Some experience with JavaScript (including ES6+ features like Classes and Promises) Understanding of HTML5, CSS, and JSON Ideally experience with game engines such as Pixi.js or Phaser Familiarity with version control systems (preferably More ❯

Front End/JavaScript Developer Salary: Up to £40,000, depending on experience Location: Fully Remote Industry: iGaming Provider Overview We are looking for a motivated Front-End/JavaScript Developer to join a team and support the development of high-quality web and mobile games. This role offers a great opportunity to work within the … iGaming sector, collaborating with cross-functional teams to enhance game development processes. Key Responsibilities: Assist in developing and maintaining mobile and web-based games using JavaScript and Pixi.js Work closely with designers, artists, project managers, and testers to deliver engaging and well-optimised games Write clean, efficient, and maintainable code Support the implementation of Unit Tests to ensure code … timeframes and accurately log time spent on tasks Stay up to date with industry trends and best practices in front-end development Required Skills and Experience: Some experience with JavaScript (including ES6+ features like Classes and Promises) Understanding of HTML5, CSS, and JSON Ideally experience with game engines such as Pixi.js or Phaser Familiarity with version control systems (preferably More ❯

Full Stack Engineer/Developer (JavaScript TypeScript ISO 27001) WFH/London to £75k Are you a security focussed Full Stack Developer looking for an opportunity to progress your career? You could be working on Tech for Good application for the healthcare sector that utilises AI and Machine Learning techniques to help prevent patients from experiencing health … crisis. As a Full Stack Developer you'll collaborate with a small team working on internal tools and data platforms, with a focus on refactoring code, implementing robust security practices and scalable architectures. You'll use a range of technology, primarily JavaScript on the backend and TypeScript on the frontend, you'll build secure, responsive user interfaces, implement … from home most of the time, meeting up with colleagues in the London office once a month/quarter. About you: You have strong full stack development experience with JavaScript and TypeScript You have a strong appreciation of RDBMS, security data architecture and ISO 27001 You are collaborative, enjoy problem solving and are proactive in getting things done You More ❯

html Salary £40,000 - 40,000 per year Requirements We are seeking a JavaScript Developer with strong knowledge of JavaScript and modern frameworks such as React, Angular, and Vue. You should have a solid understanding of HTML, CSS, REST APIs, and more. Technologies Android Angular CSS JavaScript REST React Vue iOS Java More This is a … fantastic opportunity for a developer who wants to work on meaningful projects that make a real impact in the digital world. The position is located in Manchester with the option for home-based deep work. More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route … with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment. There's More ❯

So, you're a fresh-thinking, problem-solving coder? As a JavaScript developer at Cambridge Intelligence, you'll join our development teams working on some of the novel challenges of complex graph data visualization. What's involved? You'll design, prototype and build product features that help our customers create better data visualization applications. Along the way, you … You'll solve complex engineering problems as part of an agile software development team, with involvement throughout - from writing feature designs and technical documentation, to building demos. As a developer, you'll get involved in various projects and processes and have the chance to work across all of our products at some point. You'll help to mentor some … more junior members of the team too. You'll also enjoy explaining complex ideas and processes to others. Our main programming language is TypeScript, so experience in that or JavaScript is essential. You might also have experience of: React, NodeJS, Webpack Building graphical applications in any language UX techniques to produce intuitive software Data visualization or analysis Development Operations More ❯

Senior Full Stack Developer/Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets … with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own More ❯

Graduate/Junior Developer, Python, JavaScript, PHP - London (Tech stack: Graduate/Junior Developer, Python, JavaScript, PHP, Graduate/Junior Developer) In 2012 our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period our client has decided to hop across the Atlantic, in a bid … the UK and European markets. A number of new offices are being opened in the UK and our client is looking for talented, enthusiastic and passionate Graduate/Junior Developer to bring their product to these new markets and help enhance this already successful company! These roles would be suitable Graduate/Junior Developer who have recently graduated … from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year in industry. All Graduate/Junior Developer positions come with the following benefits: 30 days holiday (plus More ❯

Job Title: React Front-End Developer Location: Loughborough, Leicestershire – Office-Based Salary: Competitive, Based on Experience About Us Forest Rock is a UK-based leader in IoT, energy management, and intelligent building technology. Headquartered in Loughborough, Leicestershire, we design and deliver full-stack solutions that combine smart devices, software platforms, and analytics to help organisations make their buildings more … people and organisations to build smarter, more sustainable infrastructure through connected technologies. We're expanding our in-house development team and are looking for a React JS Front-End Developer to join us in our modern Loughborough office. What You'll Do Collaborate with UX/UI designers and back-end developers to create responsive, high-performance web interfaces … up to date with front-end trends, frameworks, and best practices What We're Looking For 3+ years of experience in front-end development, primarily with React.js Proficiency in JavaScript (ES6+) , HTML5 , CSS3 , and responsive design Familiarity with REST APIs and version control systems like Git A detail-oriented mindset with good problem-solving skills and a strong desire More ❯

Job Title: React Front-End Developer Location: Loughborough, Leicestershire – Office-Based Salary: Competitive, Based on Experience About Us Forest Rock is a UK-based leader in IoT, energy management, and intelligent building technology. Headquartered in Loughborough, Leicestershire, we design and deliver full-stack solutions that combine smart devices, software platforms, and analytics to help organisations make their buildings more … people and organisations to build smarter, more sustainable infrastructure through connected technologies. We're expanding our in-house development team and are looking for a React JS Front-End Developer to join us in our modern Loughborough office. What You'll Do Collaborate with UX/UI designers and back-end developers to create responsive, high-performance web interfaces … up to date with front-end trends, frameworks, and best practices What We're Looking For 3+ years of experience in front-end development, primarily with React.js Proficiency in JavaScript (ES6+) , HTML5 , CSS3 , and responsive design Familiarity with REST APIs and version control systems like Git A detail-oriented mindset with good problem-solving skills and a strong desire More ❯

Job Title: React Front-End Developer Location: Loughborough, Leicestershire – Office-Based Salary: Competitive, Based on Experience About Us Forest Rock is a UK-based leader in IoT, energy management, and intelligent building technology. Headquartered in Loughborough, Leicestershire, we design and deliver full-stack solutions that combine smart devices, software platforms, and analytics to help organisations make their buildings more … people and organisations to build smarter, more sustainable infrastructure through connected technologies. We're expanding our in-house development team and are looking for a React JS Front-End Developer to join us in our modern Loughborough office. What You'll Do Collaborate with UX/UI designers and back-end developers to create responsive, high-performance web interfaces … up to date with front-end trends, frameworks, and best practices What We're Looking For 3+ years of experience in front-end development, primarily with React.js Proficiency in JavaScript (ES6+) , HTML5 , CSS3 , and responsive design Familiarity with REST APIs and version control systems like Git A detail-oriented mindset with good problem-solving skills and a strong desire More ❯

Senior Software Developer, Software Developer, .NET C# JavaScript TypeScript React SQL Our client is a leading global provider of cloud communications solutions. They support organisations around the world in enhancing customer engagement and experience through innovative, cutting-edge technology.. The Opportunity Due to continued global growth, our client is looking for a talented and experienced Software Developer … . Experience using Git and working in Agile/Scrum environments. Desirable: Familiarity with OWASP ASVS or other security frameworks. Experience with .NET 5/6. Exposure to React.js, JavaScript, or TypeScript. More ❯

Graduate/Junior Developer, Python, JavaScript, PHP - London (Tech stack: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker, Agile) In 2012, our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period, our client has decided to hop across the Atlantic to expand their sphere of influence … company! These roles would be suitable for Graduate/Junior Developers who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker, and Agile; which might have been acquired as part of your degree course or through a placement year in industry. All Graduate …/Junior Developer positions come with the following benefits: 30 days holiday (plus 8 UK Bank Holidays). Flexible working hours. An early finish on Fridays that fall in the months of June, July, and August. £10,000 training allowance including attendance at Microsoft events and conferences. 4 days a month of innovative time. Free gym membership including yoga More ❯

Front and Backend C# Dot Net Javascript Software Developer with Umbraco Our Client is an established leader in the travel industry. They are looking to recruit a Full Stack Dot Net Software Developer to work on a major transformation programme for this award-winning Luxury Travel Company. Projects will include designing and implementing web based tools to … involving in-house resources and/or third party suppliers Ability to design and architect technical solutions to complex business problems Full Stack development experience (ASP.NET, C#, HTML, CSS, JavaScript, JQuery, ReactJS, AngularJS, MS SQL Server) CMS experience e.g. with Umbraco ?" experience of Umbraco would be a plus Continuous Delivery skills, tools and techniques (e.g. Git, Github, Jenkins, Docker More ❯

C# Developer/Full Stack Engineer (.Net Core JavaScript) St Albans/WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where … you will get your voice heard and can make a real impact on the bottom line, earning significant bonuses. As a C# Developer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech … minute walk from local station, with the flexibility to work from home three days a week. About you: You have strong C# .Net Core backend development skills You have JavaScript experience, combined with Angular or React You have experience with AWS and microservices You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures More ❯

C# Developer/Full Stack Engineer (.Net Core JavaScript) St Albans/WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where … you will get your voice heard and can make a real impact on the bottom line, earning significant bonuses. As a C# Developer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech … minute walk from local station, with the flexibility to work from home three days a week. About you: You have strong C# .Net Core backend development skills You have JavaScript experience, combined with Angular or React You have experience with AWS and microservices You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures More ❯

Projects involved: Building new features for an online assessment and grading platform Developing interactive course modules and real-time collaboration tools for students Migrating legacy systems to a modern JavaScript/TypeScript stack Improving platform performance, accessibility, and user experience for thousands of active users Integrating the platform with third-party APIs and cloud services Skills required: JavaScript … CI/CD, and cloud hosting (AWS/Azure) Knowledge of accessibility standards (WCAG) is a plus, given the education focus If you're a Manchester-based mid-level JavaScript contractor who's passionate about building products that make a difference in education and you're available in the coming weeks. Apply with your CV. More ❯

Viqu has partnered with a leading organisation seeking a Senior Software Developer with strong full stack expertise in C#, JavaScript, REST APIs, and SQL. As a Senior Software Developer, you’ll build responsive web interfaces and develop robust backend services, delivering scalable, high-performance solutions. You’ll join a fast-paced Agile team, driving new features and … maintaining critical systems that support essential public services. Key Responsibilities of the Senior Software Developer: Design, develop and maintain responsive web applications focusing on user experience and accessibility Deliver frontend components using JavaScript, Bootstrap and CSS, ensuring consistency and usability Collaborate with back-end developers to integrate service-layer logic and APIs Participate in Agile ceremonies including sprint … coding standards and best practices Collaborate with subject matter experts, testers, and technical teams to ensure software solutions meet user and operational requirements. Key Requirements of the Senior Software Developer: Proven commercial experience developing frontend web applications using JavaScript, Bootstrap and CSS Strong knowledge of C# and object-oriented programming principle Experience consuming and working with RESTful APIs More ❯