Founding Product Engineer

Founding Product Engineer

East London

We're working with a well-funded, early-stage AI startup that is rebuilding its core product and team after operating at significant real-world scale.

The company is developing an AI-native platform that automates end-to-end influencer marketing for consumer brands. Rather than acting as a traditional agency, the product uses AI agents to handle workflows such as briefing, creator communication, execution, and compliance - removing a major operational burden for marketing teams.

The founder has previously scaled the business to support dozens of brands and tens of thousands of creators, learned where bespoke, service-heavy approaches break down, and is now intentionally resetting the company around a more focused ICP and a standardised, scalable product.

This hire is one of the earliest engineering roles in that next phase.

The Role

They are looking for a Founding Product Engineer to work directly with the founder and take significant ownership of the frontend and product experience.

This is a high-impact role suited to someone who enjoys ambiguity, wants real influence over product direction, and is comfortable operating at founder-level depth while still shipping hands-on code.

Responsibilities

• Build and own core product features using TypeScript, React, and Next.js
• Work closely with customers to understand workflows and translate them into scalable product abstractions
• Help shape product architecture, engineering standards, and long-term technical decisions
• Contribute to AI-driven features, integrating LLMs into user-facing workflows
• Operate in a forward-deployed manner when needed, collaborating directly with users and stakeholders

Requirements

• 4-6 years of strong frontend engineering experience
• Expert-level TypeScript, React, and Next.js
• Clear interest in AI and LLMs (hands-on usage expected; no need to build models)
• Experience in at least one startup environment (A-B stage preferred)
• Comfortable working on-site and committing to an intense, high-ownership role
• Strong communication skills and a bias toward execution

Preferred Profile

• Frontend-leaning full-stack experience or curiosity
• Good product and design sensibility
• Prior founder experience (not essential)
• Computer Science degree
• Regular use of LLMs in day-to-day work
• Big tech or consulting background is fine if followed by meaningful startup experience

Why This Role Stands Out

• True founding-level position with equity
• A product reset informed by real operational scale, not theory
• Experienced founder with funding in place and a clear strategic direction
• Opportunity to build from scratch while moving quickly
• London-based team with a Silicon Valley pace and mindset