Product Engineer (Front End) | A.I Data Start-up | YC Combinator | Up to £135K+Equity | React/TypeScript | 3 Days London

Owen Thomas | B Corp™; Greater London; Hybrid; GBP 80,000 - 135,000; Full time

Job summary

Owen Thomas | B Corp™ is seeking a Product Engineer (Front End) in London to own full lifecycle frontend development in a high-growth AI data start-up. You will work on building modern web applications with React + TypeScript, shipping onboarding and growth features, and collaborating with customers to deliver valuable product outcomes.

This early-stage opportunity offers ownership, exposure to senior founders, and a fast-moving engineering culture focused on user-centric product quality.

Qualifications

• Experience building modern web applications.
• Proficient with React and TypeScript in frontend development.
• Comfortable using AI-assisted development tools.
• Strong focus on user experience and product quality.
• Commercial mindset and customer-focused problem solving.

Responsibilities

• Build intuitive, high-quality product experiences.
• Design and ship onboarding, activation and growth features.
• Work directly with customers to solve real-world problems.
• Measure impact and continuously improve the product.

Skills

React

TypeScript

Full-stack development

AI-assisted development tools

Job description

Product Engineer (Front End) | A.I Data Start-up | YC Combinator | Up to £135K+Equity | React/TypeScript | 2/3 Days London

I am currently working with an ambitious, venture-backed AI start-up is looking for a Senior Front End focussed Product Engineers to help shape the future of its product and business.

The company is building a next-generation software platform helping teams make smarter decisions through data, technology and automation. Having found strong product-market fit, the team is entering an exciting growth phase and is looking for an engineer who wants to own products from discovery through to delivery.

The Role

This is a true product engineering role. Engineers own the full lifecycle—from understanding customer problems and identifying opportunities to building, launching and iterating on features. There are no traditional product managers, giving engineers genuine ownership and influence.

Key responsibilities include:

• Building intuitive, high-quality product experiences.
• Designing and shipping onboarding, activation and growth features.
• Working directly with customers to solve real-world problems.
• Measuring impact and continuously improving the product.

The ideal candidate will:

• Have experience building modern web applications.
• Be confident with React, TypeScript and full-stack development.
• Be comfortable using AI-assisted development tools.
• Care deeply about user experience and product quality.
• Think commercially and enjoy solving customer problems.
• Thrive in a fast-moving, collaborative environment with high levels of ownership.

Experience in start-ups, product-led growth or working closely with enterprise customers would be an advantage but isn't essential.

Why Join?

This is an opportunity to join early, work directly with experienced founders and a high-calibre engineering team, and help shape a product used by some of the world's leading organisations.