Founding Full-Stack iOS Engineer

About the role

This is a founding iOS engineering role at an early‑stage wearable technology startup backed by Y Combinator, building a consumer device that monitors and interprets emotional states in real time. You will own the companion iOS app end‑to‑end, translating sophisticated AI model outputs into intuitive, polished experiences for users. As one of the first technical hires, you will have real ownership over the primary consumer touchpoint and a direct hand in shaping how the product grows.

Key responsibilities

• Own the companion iOS app from architecture through deployment and ongoing iteration.
• Surface emotional‑state outputs from the core inference model through clean, intuitive app interfaces.
• Build and ship a polished, consumer‑grade mobile experience that meets high product standards.

Required profile

• At least 2 to 3 years of professional iOS engineering experience; not suitable for fresh graduates.
• Strong Swift proficiency and a proven track record shipping polished, consumer‑grade iOS applications.
• Experience building data‑driven apps that present complex model or sensor outputs through clean, accessible interfaces.
• Strong computer science fundamentals and the ability to make and own technical decisions autonomously as a founding engineer.
• Comfortable working independently across time zones and collaborating on a lean, distributed team.
• Full‑stack iOS capability, comfortable owning the app layer end‑to‑end.

Required skills

• Swift
• iOS development

What we offer

• Salary of $150,000 USD (≈ GBP 75,000 for London candidates) plus early equity of up to 1–2%.
• No new visa sponsorship; visa transfers and OPT transitions are acceptable.