As the third founding engineer, you will own the entire tech stack alongside two others, building an AI-centric marketplace that optimizes trust over transactions. You’ll ship critical iOS features using React Native and architect systems powered by proprietary social data, directly impacting Kiki’s mission to unchain one billion people from their rent.
Founding Full-Stack Engineer at Kiki Club
Join Kiki Club as our third founding engineer in London and help us unchain 1 billion people from their rent. Backed by Blackbird and founders from Airbnb and Uber, Kiki is an invite-only sublet marketplace growing at 30% month-over-month with $4.7M gross ARR. You’ll work in-person at Shoreditch Exchange, using AI as a core productivity multiplier to build a trust-based marketplace powered by proprietary social data. With a total compensation package of up to £210k and true ownership over our React Native and TypeScript stack, this is a unique chance to define the engineering culture of a global startup at its breakout moment.
What's the next step?
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Location
London, United Kingdom
Compensation
£90k-£120k + £90k Equity
Company
Kiki Club
Role overview
Media & Internet, Social Networks
At Kiki, we’re on a mission to unchain people from the financial constraints of rent. We’re working to create a world where people can leave their homes without the burden of paying rent while they’re away. Many people are hesitant to let someone stay in their home, which creates a massive trust gap. Our goal is to bridge that gap, building the kind of trust that makes people feel comfortable with a stranger in their home- just as they would with family or close friends. Once we break through this barrier, our Kikiers will experience the freedom of being able to travel, spend time with family, or take work trips without being financially tied to their homes.
What you will do
- Own the end-to-end development of the iOS app using React Native, shipping features like in-app messaging and interactive map search.
- Architect and build an AI-driven “mutual friend” layer using a proprietary dataset of over 10,000 social conversations to verify user trust.
- Collaborate directly with the founders in-person at Shoreditch Exchange to evolve the tech stack across React, TypeScript, Postgres, and AWS.
Who this is a fit for
- A senior full-stack engineer with high shipping output and a deep proficiency in TypeScript, React Native, and modern cloud infrastructure.
- An engineer who treats AI coding tools as a central, indispensable part of their development workflow to maximize speed and quality.
- A first-principles thinker who can navigate vague requirements to build real products, possessing strong design judgment and a low attachment to specific implementations.
Why this role is remarkable
- Join a high-growth startup backed by Blackbird and world-class angels from Airbnb, Uber, and Canva, with two years of runway and $4.7M gross ARR.
- Experience true founding-level ownership, setting the technical foundations for a product growing 3x faster in London than its previous NYC market.
- Work in a culture that treats AI as a core productivity multiplier, allowing a small team of six to achieve outsized global impact.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Kiki Club wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.