Senior iOS Engineer (+ Equity) at AI-first stealth healthtech startup

Job Title

Senior iOS Engineer (AI-First)

Compensation

Not Disclosed + Equity

Location

London, UK

Company Description

Stealth-mode healthtech startup reinventing preventative healthcare through at-home electrochemical sensing, hardware, and AI-driven diagnostics.

Job Description

Join a world-class team building a beautifully designed health platform that enables early detection of cancer, heart disease, and diabetes from home. You will architect a native iOS ecosystem that integrates deeply with proprietary hardware and HealthKit, leveraging an AI-first engineering workflow to deliver high-impact, consumer-grade healthcare experiences at scale.

Why this role is remarkable

• Work at the intersection of hardware, AI, and behavioral science to solve critical global health challenges like early cancer detection.
• Experience a radical engineering culture that treats AI (including Claude Code) as a core teammate to accelerate development and eliminate drudgery.
• Enjoy high ownership and early-stage equity in an ambitious venture moving fast to bring laboratory-grade sensing into the home environment.

What You Will Do

• Architect and maintain a high-performance native iOS application using Swift, SwiftUI, and modern concurrency patterns.
• Develop seamless hardware integrations via Core Bluetooth and surface vital patient insights through deep HealthKit implementation.
• Collaborate directly with founders, scientists, and designers to define how AI-powered health experiences reach millions of users.

The ideal candidate

• Extensive experience shipping consumer-facing native iOS applications with a mastery of Swift, SwiftUI, and mobile architecture.
• Proven background working in healthcare or heavily regulated environments, ensuring high standards of data quality and performance.
• A forward-thinking developer who is excited by AI-assisted workflows and has an interest in IoT, Bluetooth, or connected devices.

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