Clera

Founding Full-Stack iOS Engineer

Remote, United States remote Entry $150,000 - $150,000
remote Technology & IT Salary listed Curated
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About the role

About the Role
This is a founding engineering opportunity at a Y Combinator–backed consumer wearable startup operating at the intersection of biometrics, emotional intelligence, and mobile software. The company is building a wearable device that reads emotional states in real time — think of it as a fitness tracker, but for your EQ — powered by a proprietary computational neuroscience inference model processing over 150 audio and biometric signals.
As the Founding Full-Stack iOS Engineer, you will own the companion iOS app end-to-end. This is a high-ownership, high-impact role: you'll be one of the first engineers at the company, expected to grow into a leadership position as the team scales. Prototypes are already on users' wrists — this is a real product with real momentum.
What You'll Do

Own the companion iOS app end-to-end, from architecture decisions to pixel-perfect UI delivery

Surface emotional-state outputs (energy, mood, focus scores) from the backend inference model in a clear, compelling, and polished consumer experience

Collaborate closely with the founding team — including hardware, neuroscience, and design — to shape the full product experience

Build and maintain full-stack integrations between the iOS app and backend services

Set engineering standards and best practices as the mobile org grows around you

What We're Looking For
Required

Several years of professional experience shipping consumer-grade iOS apps (no fresh graduates)

Strong proficiency in Swift and the iOS ecosystem

Full-stack capability — comfortable working across mobile and backend layers

Track record of owning and delivering polished, production-quality mobile products

Self-directed and comfortable working in a fast-moving, early-stage environment

Nice to Have

Experience with health, fitness, or wearable consumer apps

Familiarity with biometric data, Bluetooth/BLE hardware integration, or real-time data streaming

Prior founding or very early-stage startup experience

Compensation & Benefits

Salary: ~$150,000 USD (or ~£75,000 GBP for London-based candidates)

Equity: Up to 1–2% — meaningful founding-level ownership

Early-stage company with Series A/B angel and strategic-partner funding round in progress

Visa sponsorship: Not available for new sponsorships; visa transfers are welcome

Location
Primary office in London, United Kingdom. The team is also present in San Francisco. Flexible arrangements considered for the right candidate — on-site or remote.
Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Technology & IT API integration Founding Full Stack Ios remote

Likely questions

  1. Tell us about work you have done that is close to the Founding Full-Stack iOS Engineer role.
  2. How would you approach your first 30 days at Clera?
  3. Which of API integration, Founding and Full have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with API integration, Founding and Full.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Founding Full-Stack iOS Engineer role because I can bring practical experience in API integration, Founding and Full, learn the team quickly, and contribute to the outcomes Clera needs from this hire.

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