Senior Product Engineer

Senior Product Engineer

Help build the next-generation financial app people actually want to use

Why this role exists

Modern finance doesn’t have to be boring. This fast-growing fintech is creating a financial membership that feels fair, flexible, and fun. Think rewards that actually make you smile, a slick mobile and web experience, and features that people genuinely use.

They’ve just secured a £20M+ funding round and are scaling fast, which means this is your chance to make a tangible impact on a product millions will interact with.

What you’ll actually be doing

• Craft experiences people love – Work across iOS, Android, and web, building polished, high-quality apps in React Native and Next.js.
• Take full ownership – From planning stories to deploying features, you’ll see your work through every step.
• Collaborate with design & product – Turn ideas into intuitive, delightful experiences across platforms.
• Lead technical conversations – Influence architecture, tools, and workflows that shape the future of the product.
• Mentor and grow the team – Help other engineers level up while shaping best practices.
• Spot opportunities for improvement – Identify pain points in processes or tooling and make them better.

What will make you successful

• Proven experience with React Native: you’ve shipped apps that people use and know how to squeeze every drop of magic out of the platform.
• Strong grasp of Next.js and server-side rendering for web apps.
• You notice the little things: pixel-perfect design, smooth animations, intuitive flows.
• Comfortable building cross-platform experiences: iOS and Android should feel equally delightful.
• Experience with design systems: you know when to follow them and when to break the rules.
• You think like a product engineer: coding is solving problems, not just writing lines.
• Thrive in a fast-moving, ambiguous environment, taking ownership and navigating uncertainty.
• Commitment to quality through automated testing: you know good tests are part of building, not an afterthought.

Perks & benefits

• £90k–£100k salary + c. £80k stock options
• 35 holidays
• Private healthcare (mental, dental & vision)
• Enhanced parental leave
• Learning & development allowance (£750/year)
• Team offsites (UK + international), regular social events
• Cycle-to-work scheme & office perks (coffee, breakfast, beers, dogs!)
• Flexible UK-based remote/hybrid working