Byte9
Senior Front-end JavaScript developer sought!

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Senior Front-end Developer Position Summary
Byte9 are looking for a skilled front-end JavaScript developer.
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
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.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
What we offer
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
- Software engineering best practice
- Over 4 years of commercial front-end web development experience
- Excellent HTML, CSS, JavaScript skills
- Experience with JavaScript frameworks (ReactJS, AngularJS, ExpressJS etc)
- 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
- Developing cross-browser and cross-platform compatible solutions
- 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)


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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.
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