Founding Full-Stack iOS Engineer

Clera; Greater London; Hybrid; GBP 135,000 - 165,000; Full time

Benefits offered by this job

Equity up to 1-2%

Job summary

Clera is seeking a founding iOS engineer to own the companion app end-to-end, translating AI inferences into delightful mobile experiences. You will shape the architecture, ship features, and collaborate across time zones from London and San Francisco.

Requirements include 3+ years in Swift, delivering production iOS apps, and strong backend integration. This remote-friendly role offers equity and the opportunity to influence the platform from day one.

Qualifications

• 3+ years of iOS development with Swift and production-ready consumer iOS apps.
• Full-stack capabilities spanning mobile development and backend API integration.
• Experience integrating ML model outputs or inferences into a mobile UX.

Responsibilities

• Own the iOS app from architecture through deployment, iteration, and ongoing maintenance.
• Surface emotional-state outputs from a proprietary AI inference model through clean, accessible mobile interfaces.
• Build and ship a high-quality consumer mobile experience that meets demanding product standards.
• Integrate backend APIs — including authentication, data sync, and data models — to support the full mobile stack.
• Make autonomous technical decisions as a founding engineer, helping to shape the long-term platform architecture.

Skills

Swift

iOS development

Full-stack

ML model integration

End-to-end ownership

UI/UX polish

CS fundamentals

Time zone collaboration

Tools

REST APIs

Backend integration

Job description

About the Role

This is a founding engineering role at a Y Combinator–backed wearable AI startup, where you'll own the companion iOS app end-to-end — translating real-time emotional-state inferences into intuitive, consumer-grade experiences. You'll be an early team member with meaningful product ownership, sitting at the intersection of cutting-edge AI and polished mobile design.

What You'll Do

• Own the iOS app from architecture through deployment, iteration, and ongoing maintenance.
• Surface emotional-state outputs from a proprietary AI inference model through clean, accessible mobile interfaces.
• Build and ship a high-quality consumer mobile experience that meets demanding product standards.
• Integrate backend APIs — including authentication, data sync, and data models — to support the full mobile stack.
• Make autonomous technical decisions as a founding engineer, helping to shape the long-term platform architecture.

What We're Looking For

• 3+ years of professional iOS development experience with Swift and a proven track record of shipping production-ready consumer iOS apps.
• Strong full-stack capabilities spanning mobile development and backend API integration.
• Experience integrating machine learning model outputs or inferences into a mobile UX.
• Demonstrated end-to-end ownership of mobile features, from concept through release and ongoing iteration.
• Proficiency delivering polished, performant consumer UI/UX with smooth user experience.
• Strong CS fundamentals and comfort making independent technical decisions.
• Ability to collaborate effectively across time zones on a distributed team.
• Work authorization in the UK or US required; new visa sponsorship is not available (H-1B transfers considered).

Compensation & Benefits

Base salary of $150,000 USD (or approximately £75,000 GBP for London-based candidates), plus up to 1–2% equity. No new visa sponsorship; H-1B transfers may be considered.

Location

Flexible — remote or on-site. Primary office location is London, UK, with a presence also in San Francisco, CA. Candidates must be comfortable working across time zones.