React / Frontend Engineers / Stealth Mode Start-Up / London

Are you a Frontend React Engineer looking to join a start-up at the ground level - with serious ambition, vision, and a track record of success? Join a new company, currently in stealth, using deep industry insight and technical expertise to build products that we believe will reshape our space. Past ventures have been acquired for billions.

This is your chance to help define our product and engineering direction from day one.

You will ideally have:

• A BSc in Computer Science or STEM subject from a Russell Group University
• Commercial Frontend experience
• Proficiency in TypeScript (or JavaScript) and Vue 3 (or React)
• Willingness to learn from practised professionals
• Founding Engineer mindset
• Good instincts for problem-solving and a sharp eye for detail
• Clear communication and a collaborative mindset

• A meaningful role in an early-stage start-up with real product influence
• Hands-on mentorship from engineers with proven success at scale
• Competitive salary, equity, and healthcare
• A collaborative team working in person (4–5 days/week) from the London base