iOS Engineer

New York, NY, United States • 0.01% - 1.00%


Role Location

  • New York, NY, United States


0.01% - 1.00%


< 10 people


234 W 13 Th St
New York, NY, 10011, US

Tech Stack

  • Swift
  • Python
  • Vue.js
  • Flask
  • MySQL

Role Description

Health and wellness are two of the most important aspects of our daily lives. We make it our mission to help people lead healthier, more active lives.

FitnessAI (YC W20) is an app that builds personalized workout plans using data science instead of anecdotal evidence. We plan all aspects of your workout – from which exercises you’ll be doing down to set, rep and weight combinations for each. As we collect data, our recommendations become more advanced and personalized. We have tens of thousands of paying customers, are well funded, and are growing rapidly.

We're looking for a Sr. iOS Developer to continue to bring our vision to life. You’ll work directly with the founder to shape the very foundations of a very promising startup, and will eventually manage a team of engineers.

You Will...

📐 Architect, write, review, and deploy FitnessAI's iOS app, written in Swift by the founder.

🛠 Correct a lot of architectural mistakes the founder may have made while proving the concept.

🤳 Design elegant, user-friendly solutions that are suitable for iOS users. We are a User Experience driven company, and often throw away features that took days to build because they simply don’t feel right.

🚀 Experience keeping a resource intensive iOS app both responsive and stable

👌 Maintain a high standard of code quality, and advocate for iOS best practices.

🧠 Think broadly about technical and product strategy

📝 Define an engineering culture, conduct interviews and build a strong engineering team


  • 3+ years of experience building iOS applications written in Swift
  • A passion for fitness and helping people lead healthier, more active lives.
  • Excitement to work with new technologies, but a strong tendency to stick with proven ones.

About FitnessAI

FitnessAI is an A.I. powered workout app. It builds personalized workouts for you everyday, with sets, reps and weight optimized for each exercise.

Company Culture

We love to build things and value a hacker attitude. We're all incredibly nice and believe that we're friends before coworkers.

Interested in this role?
Skip straight to final-round interviews by applying through Triplebyte.