1 to 25 of 26 Permanent JavaScript Developer Jobs in the UK

Backend JavaScript Developer (Vanilla/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 Developer to join their small, collaborative team and … multiple greenfield projectsacross publishing and digital media Working in a small, agile, cross-functional teamwith 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 ad tech, online publishing … greenfield projectswhere you'll shape architecture from the ground up Supportive and collaborative team culture Career growth within a leading sports media brand This role would suit a Backend JavaScript Developer, Vanilla JS Engineer, or TypeScript Backend Developer who wants to make a real impact in sports publishing. If you're passionate about JavaScript development, keen More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £60,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel To Newcastle Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We … are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you're passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of … web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £60,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/1 or 2 x days per week - Travel to Manchester Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC … . We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you're passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end … components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to More ❯

Job Title: JavaScript Developer (Contract) Location: London, UK (Hybrid/On-site depending on client) Contract Duration: 6–12 months (with possibility of extension) Rate: Competitive, depending on experience About the Role: We are seeking a talented and experienced JavaScript Developer for a contract position based in London. You will work on cutting-edge web applications … quality, scalable, and maintainable solutions. This is an exciting opportunity to contribute to innovative projects in a fast-paced environment. Key Responsibilities: Develop, test, and maintain web applications using JavaScript and related frameworks. Collaborate with UX/UI designers, backend developers, and product owners to implement new features. Write clean, modular, and well-documented code. Troubleshoot and resolve performance … issues. Participate in code reviews, knowledge sharing, and continuous improvement initiatives. Stay up-to-date with the latest industry trends and technologies. Required Skills and Experience: Strong proficiency in JavaScript (ES6+) . Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful More ❯

Job Title: JavaScript Developer (Contract) Location: London, UK (Hybrid/On-site depending on client) Contract Duration: 6–12 months (with possibility of extension) Rate: Competitive, depending on experience About the Role: We are seeking a talented and experienced JavaScript Developer for a contract position based in London. You will work on cutting-edge web applications … quality, scalable, and maintainable solutions. This is an exciting opportunity to contribute to innovative projects in a fast-paced environment. Key Responsibilities: Develop, test, and maintain web applications using JavaScript and related frameworks. Collaborate with UX/UI designers, backend developers, and product owners to implement new features. Write clean, modular, and well-documented code. Troubleshoot and resolve performance … issues. Participate in code reviews, knowledge sharing, and continuous improvement initiatives. Stay up-to-date with the latest industry trends and technologies. Required Skills and Experience: Strong proficiency in JavaScript (ES6+) . Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful More ❯

Job Title: JavaScript Developer (Contract) Location: London, UK (Hybrid/On-site depending on client) Contract Duration: 6–12 months (with possibility of extension) Rate: Competitive, depending on experience About the Role: We are seeking a talented and experienced JavaScript Developer for a contract position based in London. You will work on cutting-edge web applications … quality, scalable, and maintainable solutions. This is an exciting opportunity to contribute to innovative projects in a fast-paced environment. Key Responsibilities: Develop, test, and maintain web applications using JavaScript and related frameworks. Collaborate with UX/UI designers, backend developers, and product owners to implement new features. Write clean, modular, and well-documented code. Troubleshoot and resolve performance … issues. Participate in code reviews, knowledge sharing, and continuous improvement initiatives. Stay up-to-date with the latest industry trends and technologies. Required Skills and Experience: Strong proficiency in JavaScript (ES6+) . Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful More ❯

Job Title: JavaScript Developer (Contract) Location: London, UK (Hybrid/On-site depending on client) Contract Duration: 6–12 months (with possibility of extension) Rate: Competitive, depending on experience About the Role: We are seeking a talented and experienced JavaScript Developer for a contract position based in London. You will work on cutting-edge web applications … quality, scalable, and maintainable solutions. This is an exciting opportunity to contribute to innovative projects in a fast-paced environment. Key Responsibilities: Develop, test, and maintain web applications using JavaScript and related frameworks. Collaborate with UX/UI designers, backend developers, and product owners to implement new features. Write clean, modular, and well-documented code. Troubleshoot and resolve performance … issues. Participate in code reviews, knowledge sharing, and continuous improvement initiatives. Stay up-to-date with the latest industry trends and technologies. Required Skills and Experience: Strong proficiency in JavaScript (ES6+) . Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful More ❯

Job Title: JavaScript Developer (Contract) Location: London, UK (Hybrid/On-site depending on client) Contract Duration: 6–12 months (with possibility of extension) Rate: Competitive, depending on experience About the Role: We are seeking a talented and experienced JavaScript Developer for a contract position based in London. You will work on cutting-edge web applications … quality, scalable, and maintainable solutions. This is an exciting opportunity to contribute to innovative projects in a fast-paced environment. Key Responsibilities: Develop, test, and maintain web applications using JavaScript and related frameworks. Collaborate with UX/UI designers, backend developers, and product owners to implement new features. Write clean, modular, and well-documented code. Troubleshoot and resolve performance … issues. Participate in code reviews, knowledge sharing, and continuous improvement initiatives. Stay up-to-date with the latest industry trends and technologies. Required Skills and Experience: Strong proficiency in JavaScript (ES6+) . Hands-on experience with front-end frameworks such as React, Angular, or Vue.js . Solid understanding of HTML5, CSS3, and responsive design principles . Experience with RESTful More ❯

Senior Full Stack JavaScript Developer Salary: £77,000 - £82,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are … on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you're passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Provide technical leadership and mentorship to a team of developers, guiding them through … technical guidance, and deliver solutions that exceed expectations. Your skills and experience Design, develop, and maintain both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Proven experience in full stack JavaScript development, with a strong focus on Node.js and server-side More ❯

Designing, developing, and maintaining both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries, with strong Angular JS , and others such as React, or Vue.js. Full Stack JavaScript Developer (Angular) Salary: £70,000 to £80,000 pa (depending on experience) plus benefits, perks and health-care options … exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you're passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity … to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries, with strong Angular JS , and others such as React, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements More ❯

UKIC Cleared 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 to join our consulting client. We have multiple locations available In this role, you will lead the development of an impactful web application for a public sector programme, ensuring high performance, scalability, and maintainability. You will work closely with cross-functional teams to deliver engaging solutions that meet the client's needs. Are you someone who could … 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 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 ❯

Full Stack Developer/Software Engineer (JavaScript Vue.js Python) London to £80k Do you enjoy working with a range of programming languages? You could be progressing your career as a Full Stack Developer 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 partnership with Octopus Electric Vehicles and Evans Cycle to Work scheme, there's showers and towels if you do decide to cycle! Your role: As a 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 ❯

Full Stack Developer/Software Engineer (JavaScript Vue.js Python) London to £80k Do you enjoy working with a range of programming languages? You could be progressing your career as a Full Stack Developer 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 partnership with Octopus Electric Vehicles and Evans Cycle to Work scheme, there's showers and towels if you do decide to cycle! Your role: As a 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 ❯

End Date Saturday 27 September 2025 Flexible Working Options Hybrid Working Job Description Summary . Job Description JOB TITLE: Senior Fullstack Developer (Java/JavaScript) SALARY: £70,929 - £86,691per annum LOCATION(S): Edinburgh, Halifax, Leeds, Bristol, Manchester HOURS: Full-time - 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two … a force for good. As we continue to invest in our people, platforms, and products, we're looking for passionate Senior Fullstack Developers with experience in both Java and JavaScript to help us create secure, scalable, and customer-first solutions.If you're someone who thrives in collaborative environments, enjoys solving meaningful problems, and wants to make a real impact … and implementing RESTful APIs that support scalable, secure, and high-performance architectures. Familiarity with backend frameworks such as Spring Boot and Node.js is beneficial. Frontend Development Strong proficiency in JavaScript/TypeScript for building modern, responsive user interfaces. Experience with frameworks and libraries such as React, Next.js, Redux, Vue.js , or Angular is highly desirable. DevOps & Cloud Experience with CI 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 … local station, with the flexibility to work from home twice a week in a hybrid model. 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 … local station, with the flexibility to work from home twice a week in a hybrid model. 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 … local station, with the flexibility to work from home twice a week in a hybrid model. 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 … local station, with the flexibility to work from home twice a week in a hybrid model. 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 ❯

Senior Netsuite Developer Our Client is a leading company who are looking to recruit a Senior Netsuite Developer with Javascript and SQL with extensive Netsuite OneWorld expertise. You will have a degree in Computer Sciences or equivalent certifications. Must have technical working knowledge of NetSuite OneWorld Financials platform, including relevant NetSuite certifications. Ideally have at least … to 7 years experience of developing in Javascript and Oracle SQL in order to develop applications for Netsuite including a minimum 5 years in NetSuite OneWorld. Experience of full software delivery lifecycle including capturing business requirements, developing solutions, user testing & training, post go-live support and optimisation. Experience of integrating Finance packages with other strategic solutions including CRM and More ❯

Junior Full Stack Developer/Engineer (C# SQL JavaScript) Hemel Hempstead to £50k Do you enjoy working with a range of programming languages across the full tech stack? You could be progressing your career at a growing Tech for Good company that provides psychometric testing and careers advice for students across the globe, to help people discover their … strengths and interests. As a Junior Full Stack Developer you'll design and develop new features and enhancements to the core platform, working with C# and SQL on the backend through to JavaScript and Vue.js on the frontend. You'll be supported by more senior engineers and be encouraged to contribute ideas, you'll have your voice heard … there are flexible start/finish times to accommodate school runs or other commitments. About you: You have experience across the full tech stack including C#, SQL querying and JavaScript (Vue.js experience would be nice, but you can pick it up on the job) You enjoy collaborating and taking part in technical discussions, are keen to contribute ideas and More ❯

Lead Developer Remote - London (Twice Per Month) Up to £65,000 + Benefits We're working with a world-renowned organisation at the forefront of science and digital innovation who are looking for a Lead Developer to join a major national programme. This is a fantastic opportunity to take ownership of building and leading a team delivering cutting … edge digital infrastructure that will transform how vital scientific data is accessed and shared across the UK and beyond. The role As Lead Developer, you'll provide senior technical direction and hands-on expertise in designing and implementing scalable, secure infrastructure. You'll be responsible for shaping architectural decisions, integrating cloud-based and bespoke solutions, and ensuring robust delivery … datasets. Collaborate with external suppliers, partners, and stakeholders to align delivery. What we're looking for: At least 5 years of experience delivering full-stack software development (Python backend, JavaScript frontend). Strong background in backend infrastructure - SQL/NoSQL, event stores, cloud storage. Proven experience in architecting secure, scalable systems in AWS, Azure, or GCP. Experience with CI 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 More ❯

Software Developer, C# .NET React JavaScript TypeScript. SaaS Cloud AI Unified Comms x 3 We’re hiring on behalf of a forward-thinking organisation delivering cutting-edge software across global projects. They’re seeking a driven Software Developer to join their agile, high-performance team and help shape the future of impactful digital solutions. What You’ll … Be Doing as a Software Developer Software Development Write clean, scalable, maintainable code using C# and .NET 5/6 Build modern frontend solutions using JavaScript , TypeScript , and React Contribute to architectural decisions and design secure software components Collaborate closely in Agile/Scrum teams to deliver reliable, user-centric software Carry out rigorous unit and integration testing … performance tuning Participate in code reviews and mentor junior developers Prototype new ideas and stay informed on emerging technologies and frameworks What We’re Looking For in a Software Developer A 2:1 or above in a STEM or Computer Science degree (or equivalent) Strong academic track record. 3+ years’ experience in professional software development Deep expertise in C# More ❯

We are looking for a motivated junior developer to join a growing technology team. This is an excellent opportunity for someone with 1-2 years' experience who is eager to build their skills in Salesforce development or front-end/back-end development. What you'll be doing: Assisting in the design, development, and support of applications Working with … Salesforce or web technologies to deliver solutions Writing clean, efficient code in Java, JavaScript, HTML and CSS Supporting senior developers on projects and learning best practices Debugging, testing, and maintaining existing systems Skills & experience we're looking for: 1-2 years' development experience Familiarity with Salesforce development OR strong skills in Java/JavaScript, HTML, CSS Understanding of More ❯