Byte9 is a leading agile web development company located in London, seeking an experienced Senior Front-end Developer. In this role, you will support both design and development teams in producing front-end code for innovative projects. Ideal candidates should have over 4 years of commercial web development experience, strong skills in NodeJS, and an understanding of modern web technologies. The position provides a competitive salary and opportunities to work within a progressive and creative team environment.
15/07/2026
Full time
Byte9 is a leading agile web development company located in London, seeking an experienced Senior Front-end Developer. In this role, you will support both design and development teams in producing front-end code for innovative projects. Ideal candidates should have over 4 years of commercial web development experience, strong skills in NodeJS, and an understanding of modern web technologies. The position provides a competitive salary and opportunities to work within a progressive and creative team environment.
An experienced front-end web developer supporting both the Design and the Development teams, producing front-end code to support our core Blaze product and project implementations and product ecostem. Senior Front-end Developer Position Summary We are a leading agile web-development company based in London and we are looking to expand our experienced team as we engage in new projects, digital 'pivots' and innovative developments to our core Blaze product, which we are releasing as an open-source project. We specialise in feature-rich web applications, 'headless' content management with unique natural language processing tools and bespoke client web and mobile application development. Our clients range from start-ups to blue chips and our focus is on providing beautiful, innovative and perfomant systems that fulfil evolving stakeholder requirements, using mature agile development processes and best practice tooling and tech stack. Your primary responsibilities will include supporting both the design and the development teams to produce front-end code to support sophisticated, performant and scalable projects. A keen eye for cutting edge web design, interface development, performance management, tooling, usability and the ergonomics of a system are as important as a mind for innovation and the ability to work effectively in a pair / full stack application development team. There is also a responsibility to share experience, impart knowledge and mentor across the front-end team, and to work across the team as a whole to ensure best practice in product development. In return, we offer a competitive salary, the chance to work in a progressive software development environment on innovative projects, using advanced process, tools and techniques within a strong, established, experienced, creative and smart team. We have worked with a broadly distributed, global team for many years, so the current 'work from home' requirements have not affected our setup and process. Skills and experience necessary for a senior front-end developer Over 4 years of commercial front-end web development experience Experience with NodeJS Redux or similar Flux-like state-management tools Experience writing performant GraphQL and REST based APIs Experience with NPM, Gulp, Webpack TDD experience Experience with SASS / BeM Coding Standards Good understanding of Web Accessibility & usability Experience working with version control systems such as GIT Experience with Bootstrap and developing for mobile Working examples of Code / Sites (GitHub portfolio etc) Good to have Good knowledge of mobile environments, especially iOS & Android Social media skills, especially mainstream platform integration Experience with TypeScript Experience with AWS / Google Cloud infrastructure Experience with Docker / Kubernetes Experience of CI / Testing Tools Experience with CMS tools (WordPress, Magento, Drupal etc) The Right Candidate Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel at problem solving Be able to plan and execute multiple projects Can accurately translate UX wireframes and design mock-ups into well-organised front-end interfaces Will work closely with designers and back-end developers as well as quality assurance, devops and sysops More than anything, has a passion for what they do and will always be looking to learn and stay current with developments in all relevant technologies, process, software and hardware You will be working in a vibrant office / experienced distance working environment where developing first-class solutions in a positive atmosphere is far more important than a suit and tie. Inter-personal skills are also very important and you should enjoy working in a team environment, cope well with pressure, and have a genuine enthusiasm for all things web application development and a "can do" (better) attitude. You will need to manage and prioritise a varied workload and enjoy a customer-focused development role working on diverse, complex projects. 39 - 43 Putney High Street London SW15 1SP
15/07/2026
Full time
An experienced front-end web developer supporting both the Design and the Development teams, producing front-end code to support our core Blaze product and project implementations and product ecostem. Senior Front-end Developer Position Summary We are a leading agile web-development company based in London and we are looking to expand our experienced team as we engage in new projects, digital 'pivots' and innovative developments to our core Blaze product, which we are releasing as an open-source project. We specialise in feature-rich web applications, 'headless' content management with unique natural language processing tools and bespoke client web and mobile application development. Our clients range from start-ups to blue chips and our focus is on providing beautiful, innovative and perfomant systems that fulfil evolving stakeholder requirements, using mature agile development processes and best practice tooling and tech stack. Your primary responsibilities will include supporting both the design and the development teams to produce front-end code to support sophisticated, performant and scalable projects. A keen eye for cutting edge web design, interface development, performance management, tooling, usability and the ergonomics of a system are as important as a mind for innovation and the ability to work effectively in a pair / full stack application development team. There is also a responsibility to share experience, impart knowledge and mentor across the front-end team, and to work across the team as a whole to ensure best practice in product development. In return, we offer a competitive salary, the chance to work in a progressive software development environment on innovative projects, using advanced process, tools and techniques within a strong, established, experienced, creative and smart team. We have worked with a broadly distributed, global team for many years, so the current 'work from home' requirements have not affected our setup and process. Skills and experience necessary for a senior front-end developer Over 4 years of commercial front-end web development experience Experience with NodeJS Redux or similar Flux-like state-management tools Experience writing performant GraphQL and REST based APIs Experience with NPM, Gulp, Webpack TDD experience Experience with SASS / BeM Coding Standards Good understanding of Web Accessibility & usability Experience working with version control systems such as GIT Experience with Bootstrap and developing for mobile Working examples of Code / Sites (GitHub portfolio etc) Good to have Good knowledge of mobile environments, especially iOS & Android Social media skills, especially mainstream platform integration Experience with TypeScript Experience with AWS / Google Cloud infrastructure Experience with Docker / Kubernetes Experience of CI / Testing Tools Experience with CMS tools (WordPress, Magento, Drupal etc) The Right Candidate Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel at problem solving Be able to plan and execute multiple projects Can accurately translate UX wireframes and design mock-ups into well-organised front-end interfaces Will work closely with designers and back-end developers as well as quality assurance, devops and sysops More than anything, has a passion for what they do and will always be looking to learn and stay current with developments in all relevant technologies, process, software and hardware You will be working in a vibrant office / experienced distance working environment where developing first-class solutions in a positive atmosphere is far more important than a suit and tie. Inter-personal skills are also very important and you should enjoy working in a team environment, cope well with pressure, and have a genuine enthusiasm for all things web application development and a "can do" (better) attitude. You will need to manage and prioritise a varied workload and enjoy a customer-focused development role working on diverse, complex projects. 39 - 43 Putney High Street London SW15 1SP
Byte9, a leading agile web development company in London, seeks a Front-End Web Developer. You will support both the Design and Development teams, focusing on translating UX designs into functional websites. The ideal candidate will have a strong knowledge of HTML5 and CSS3, experience with SASS, and familiarity with version control systems like GIT. Join us for innovative projects and a collaborative team environment. Located at 39 - 43 Putney High Street, London.
09/07/2026
Full time
Byte9, a leading agile web development company in London, seeks a Front-End Web Developer. You will support both the Design and Development teams, focusing on translating UX designs into functional websites. The ideal candidate will have a strong knowledge of HTML5 and CSS3, experience with SASS, and familiarity with version control systems like GIT. Join us for innovative projects and a collaborative team environment. Located at 39 - 43 Putney High Street, London.
Reports to: Technical Project Manager Salary: Market leading, but dependant on experience Application: CV and covering letter to email NB No agencies please! Position summary Byte9 are one of the leading agile web development companies in London and we are looking to expand our experienced team. We specialise in feature-rich web applications, content management and ecommerce products and client web and mobile site development, increasingly we work with in house and agency design and development teams. With several exciting projects lined up we are now looking to expand the front-end design and development team with another front-end web developer. As a front-end web developer your primary responsibilities will include supporting both the Design and the Development team to produce front-end code to support multiple client projects. A keen eye for cutting edge web design, interface development, usability and the ergonomics of a system are as important as a mind for innovation and the ability to work effectively in a pair / LAMP development team environment. In return, we offer a competitive salary, the chance to work on a variety of innovative projects, using advanced process, tools and techniques within a strong, experienced, creative & smart team. Skills and experience necessary for this role: Coding valid HTML5 and CSS3 / 4 mark-up Experience with SASS / BeM Coding Standards Experience working with version control systems such as GIT The Right Candidate: Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel at problem solving Be able to plan and execute multiple projects Can accurately translate UX wireframes and design mock-ups into well organised front-end sites Will work closely with designers and back end developers as well as quality assurance teams More than anything, has a passion for what they do and will always be looking to learn and stay current with developments in all relevant technologies, both software and hardware Good to have: Experience with testing frameworks (Jest, Mocha, Chai etc) Experience with Isomorphic React Applications Experience working with APIs / GraphQL Good knowledge of mobile environments, especially iOS & Android Experience with NodeJS Human skills are very important and you should enjoy working in a team environment, cope well with pressure, and have a genuine enthusiasm for all things web application development and a "can do" attitude. You will need to manage and prioritise a varied workload and enjoy a customer focused development role working on diverse projects. 39 - 43 Putney High Street London SW15 1SP
09/07/2026
Full time
Reports to: Technical Project Manager Salary: Market leading, but dependant on experience Application: CV and covering letter to email NB No agencies please! Position summary Byte9 are one of the leading agile web development companies in London and we are looking to expand our experienced team. We specialise in feature-rich web applications, content management and ecommerce products and client web and mobile site development, increasingly we work with in house and agency design and development teams. With several exciting projects lined up we are now looking to expand the front-end design and development team with another front-end web developer. As a front-end web developer your primary responsibilities will include supporting both the Design and the Development team to produce front-end code to support multiple client projects. A keen eye for cutting edge web design, interface development, usability and the ergonomics of a system are as important as a mind for innovation and the ability to work effectively in a pair / LAMP development team environment. In return, we offer a competitive salary, the chance to work on a variety of innovative projects, using advanced process, tools and techniques within a strong, experienced, creative & smart team. Skills and experience necessary for this role: Coding valid HTML5 and CSS3 / 4 mark-up Experience with SASS / BeM Coding Standards Experience working with version control systems such as GIT The Right Candidate: Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel at problem solving Be able to plan and execute multiple projects Can accurately translate UX wireframes and design mock-ups into well organised front-end sites Will work closely with designers and back end developers as well as quality assurance teams More than anything, has a passion for what they do and will always be looking to learn and stay current with developments in all relevant technologies, both software and hardware Good to have: Experience with testing frameworks (Jest, Mocha, Chai etc) Experience with Isomorphic React Applications Experience working with APIs / GraphQL Good knowledge of mobile environments, especially iOS & Android Experience with NodeJS Human skills are very important and you should enjoy working in a team environment, cope well with pressure, and have a genuine enthusiasm for all things web application development and a "can do" attitude. You will need to manage and prioritise a varied workload and enjoy a customer focused development role working on diverse projects. 39 - 43 Putney High Street London SW15 1SP
Byte9, located in London, is seeking an experienced Senior Web Designer to support both development and client teams. The role entails producing innovative designs for core products and client websites. Candidates should have a minimum of 5 years' experience and strong UX/UI design skills. This position offers a chance to work in a creative environment on cutting-edge projects, focusing on user experience and web application design, while collaborating with developers.
18/06/2026
Full time
Byte9, located in London, is seeking an experienced Senior Web Designer to support both development and client teams. The role entails producing innovative designs for core products and client websites. Candidates should have a minimum of 5 years' experience and strong UX/UI design skills. This position offers a chance to work in a creative environment on cutting-edge projects, focusing on user experience and web application design, while collaborating with developers.
An experienced web designer supporting both the development and client teams, producing designs for our core Blaze product and client websites and web applications. Reports to: Technical Project Manager, Managing Director Salary: Depending on experience Application: CV and covering letter to Senior Web Designer Byte9 is looking for a skilled web designer, with an eye for web application design. We are a leading agile web development company in London and we are looking to expand our experienced team as we engage in both client front end design projects and development of our open source software. We specialise in feature rich web applications, content management with unique natural language processing tools and bespoke client web and mobile application development. Our clients range from start ups to blue chips and our focus is on providing beautiful, innovative and performant systems that fulfil evolving stakeholder requirements, using mature agile development processes. Your primary responsibilities will include taking client projects and our software interfaces through idea development, concepts and wireframing to high fidelity design prior to production. A keen eye for cutting edge web design, usability and the ergonomics of complex systems are as important as an understanding of brand and design dynamics. In return, we offer a competitive salary, the chance to work in a progressive design and software development environment on innovative projects, using advanced process, tools and techniques within a strong, established, experienced, creative and smart team. Responsibilities Optimising existing experiences to boost visitor engagement and conversion rates Validating and optimising designs with actionable data from a range of analytics sources Contributing to style guides and design systems Presenting designs and explaining rationale to senior stakeholders Working with developers to deliver best possible customer experience within web and web application guidelines Qualifications A minimum of 5 years' experience with strong skills in both UX/UI Design Strong experience designing digital user journeys across responsive/adaptive websites and ideally web applications and apps Knowledge of and experience implementing web and web application design patterns Experience with web typography, typefaces and fonts Good understanding of Web Accessibility & Usability The ability to interpret and implement brand guidelines for web designs Previous experience working to the Agile/Scrum methodology Confident in tools such as Sketch, Zeplin, Photoshop, Illustrator, InVision Good HTML, CSS, SASS for prototyping Experience with CMS tools (WordPress, Drupal etc.) or e-commerce tools (Shopify, Magento, Big Commerce etc.) Excellent team collaboration skills Strong communication skills with the ability to communicate clearly with technical and non-technical colleagues across the business The Right Candidate Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel creatively Be able to plan and execute multiple projects Will work closely with front end developers and quality assurance More than anything, have a passion for web design and UX You will be working in a vibrant office environment where developing first class solutions in a positive atmosphere is far more important than a suit and tie. Inter personal skills are very important and you should enjoy working in a team environment, be comfortable in client and stakeholder meetings, cope well with multiple projects on deadlines pressure and maintain a "can do" (better) attitude. 39 - 43 Putney High Street London SW15 1SP
18/06/2026
Full time
An experienced web designer supporting both the development and client teams, producing designs for our core Blaze product and client websites and web applications. Reports to: Technical Project Manager, Managing Director Salary: Depending on experience Application: CV and covering letter to Senior Web Designer Byte9 is looking for a skilled web designer, with an eye for web application design. We are a leading agile web development company in London and we are looking to expand our experienced team as we engage in both client front end design projects and development of our open source software. We specialise in feature rich web applications, content management with unique natural language processing tools and bespoke client web and mobile application development. Our clients range from start ups to blue chips and our focus is on providing beautiful, innovative and performant systems that fulfil evolving stakeholder requirements, using mature agile development processes. Your primary responsibilities will include taking client projects and our software interfaces through idea development, concepts and wireframing to high fidelity design prior to production. A keen eye for cutting edge web design, usability and the ergonomics of complex systems are as important as an understanding of brand and design dynamics. In return, we offer a competitive salary, the chance to work in a progressive design and software development environment on innovative projects, using advanced process, tools and techniques within a strong, established, experienced, creative and smart team. Responsibilities Optimising existing experiences to boost visitor engagement and conversion rates Validating and optimising designs with actionable data from a range of analytics sources Contributing to style guides and design systems Presenting designs and explaining rationale to senior stakeholders Working with developers to deliver best possible customer experience within web and web application guidelines Qualifications A minimum of 5 years' experience with strong skills in both UX/UI Design Strong experience designing digital user journeys across responsive/adaptive websites and ideally web applications and apps Knowledge of and experience implementing web and web application design patterns Experience with web typography, typefaces and fonts Good understanding of Web Accessibility & Usability The ability to interpret and implement brand guidelines for web designs Previous experience working to the Agile/Scrum methodology Confident in tools such as Sketch, Zeplin, Photoshop, Illustrator, InVision Good HTML, CSS, SASS for prototyping Experience with CMS tools (WordPress, Drupal etc.) or e-commerce tools (Shopify, Magento, Big Commerce etc.) Excellent team collaboration skills Strong communication skills with the ability to communicate clearly with technical and non-technical colleagues across the business The Right Candidate Will be organised, punctual, detailed, accurate, work quickly to tight deadlines and excel creatively Be able to plan and execute multiple projects Will work closely with front end developers and quality assurance More than anything, have a passion for web design and UX You will be working in a vibrant office environment where developing first class solutions in a positive atmosphere is far more important than a suit and tie. Inter personal skills are very important and you should enjoy working in a team environment, be comfortable in client and stakeholder meetings, cope well with multiple projects on deadlines pressure and maintain a "can do" (better) attitude. 39 - 43 Putney High Street London SW15 1SP