Senior iOS Engineer

Denver, CO, United States


Role Location

  • Denver, CO, United States


11 - 25 people


44 Cook Street
Denver, CO, 80206, US

Tech Stack

  • Node
  • NestJS
  • Python
  • Swift
  • Cocoa
  • CoreML
  • VisionKit
  • Kotlin
  • Post
  • Redis
  • AWS
  • PostgreSQL
  • Google Cloud Platform
  • Docker
  • Nginx
  • Linux

Role Description

As a Senior iOS Engineer at Exer, you’ll have the opportunity to use AI and computer vision to impact millions of peoples’ lives for the better by creating mobile experiences that fulfill our mission to help people move, play, and train better. You will join as a core member of a seasoned 15+ person team. We’ve built numerous start-ups as founders, early team members, and investors…from conception all the way to IPOs. We're also backed by top tier Silicon Valley VCs and angels.


  • Work closely with our Data Science team to bring their research to life on iOS

  • Work daily with advanced iOS frameworks including CoreML, Vision, Accelerate, and Combine to build immersive user experiences

  • Serve as an integral part of the product process: thinking through UX, designing beautiful UI, and working with consumers to solve their problems

Sound Like You?

  • 5+ years of full-time engineering experience

  • BS/MS in Computer Science or a related major, or equivalent experience

  • Experience building and maintaining iOS apps, frameworks, or SDKs. You have worked on at least one app published in the App Store, and/or have an iOS SDK that is in use by others

  • Proficiency in Python including experience with numpy. You understand Python enough to translate it to maintainable, production-ready Swift code

  • Familiarity with UIKit (SwiftUI and Combine are a plus) and Auto Layout

  • Interest in mentoring junior (and onboarding new) teammates

  • Experience testing and maintaining mobile apps at scale (CI/CD, XCTest, XCUITest)

  • A drive to create mobile experiences that make people say “wow”

  • A passion for products, empathy for users, and aspiration to make big impact

Bonus Points

  • Have experience with CoreML, TFLite, ONNX, or a related mobile framework for machine learning

  • Have experience with using Apple’s Vision framework or a related framework such as OpenCV

About Exer

Founded in 2018 in San Francisco, CA and now headquartered in Denver, CO, Exer Labs is on a mission to help millions move, train and play better. Exer’s proprietary artificial intelligence (AI) technology maps human movement using nothing more than the camera on your mobile device, with no external hardware required. By using PoseNet-based Human Pose Estimation Models (CCNs), twenty four key body points are identified and tracked to evaluate motion characteristics of the human body.

Established by three founders with deep domain expertise in start-ups, tech/AI, and fitness/health, Exer is a small, but passionate and mission-driven team backed by world-class advisors and investors from relevant industries. With the support and groundwork of such an experienced group of individuals, the technology and applications possible are limitless.

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