Prism Digital
Senior Frontend Developer
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Senior Front-End Developer | React & JavaScript | High-Growth Payments & Ordering Platform
Salary: £80,000 - £90,000
Location: London, hybrid. 3 days on site through probation, then more flexible.
Our client is a business building point-of-sale and payments technology for high-volume, high-footfall venues, the kind of places that take thousands of transactions in a few hours. They're scaling fast and want a Senior Front-End Developer to own the front end across their products.
You'll set the front-end architecture across their portal and mobile ordering products, work day to day in React and JavaScript, and sit close to product and design. You'll also mentor one or two developers. This is a strong senior with the appetite to grow into leadership, not a people manager running a big team, so most of your week stays in the code. Ideally you're coming from a competitor or a similar payments or POS platform.
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Non-Negotiables
- React
- JavaScript
- Senior front-end experience, still hands-on in the code
- Component-driven front-end architecture
- Responsive, cross-browser, high-performance web apps built at scale
- Mentoring one or two developers (formal people-management experience not required, but welcomed)
- Strong technical decision-making under pressure
What You'll Work With
- Portal and mobile ordering products
- Design system and shared component library
- Payment flows and real-time data integrations
- Automated testing, CI/CD, and performance monitoring
Nice to Haves
- TypeScript
- State management: Redux, Context API
- React Native for mobile apps
- Node.js, Express, MongoDB, or PostgreSQL
- Background in payments, event tech, hospitality, or retail
- Coming from a competitor or a similar POS / payments platform
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Why Join
You own the front end outright: the architecture, the design system, the standards the code is written to. The business is scaling, so what you ship now shapes the product for years, and you see it in the field the moment the gates open.
The management load is light. You'll mentor one or two developers, no more, so this is a chance to grow into technical leadership without stepping away from building. A strong senior who is almost there suits this better than someone who already runs a large team.
It suits someone who wants autonomy and accountability over process. If you need heavy structure and long sign-off chains, this isn't the seat.
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