Founding Full-Stack Engineer (£180k-£210k + Equity) at Kiki Club

Jack & Jill; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Blackbird backing

Two years runway

AI-first culture

Job summary

Kiki Club in London, UK is seeking a Founding Full-Stack Engineer to own the entire tech stack alongside two other founders, building an AI-centric marketplace that improves trust over transactions.

You’ll ship key iOS features with React Native, architect systems around proprietary social data, and collaborate directly with the founders at Shoreditch Exchange to shape the stack with React, TypeScript, Postgres and AWS. This is foundational work with equity potential and a clear path to scale.

Qualifications

• Senior full‑stack engineer with high shipping output.
• Proficiency in TypeScript, React Native, and modern cloud infrastructure.
• Strong design judgment and ability to navigate vague requirements to build real products.

Responsibilities

• Own 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 to verify user trust.
• Collaborate with the founders to evolve the tech stack across React, TypeScript, Postgres, and AWS.

Skills

TypeScript

React Native

Cloud infrastructure

Job description

Job Title

Founding Full-Stack Engineer

Salary

£90k-£120k + £90k Equity

Company Description

Kiki Club is a London-based, invite-only sublet marketplace that has raised $5.5M from Blackbird and executives from Airbnb and Facebook. By leveraging AI and mutual connections, Kiki solves the human trust problem of home-sharing, currently scaling at 30% monthly growth with over $4.7M in gross ARR.

Job Description

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.

Location

London, UK

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.

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.

The ideal candidate

• 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.