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iOS Engineer

Joist - Engineering – Toronto, Ontario
Department Joist - Engineering
Employment Type Full Time

Joist is the #1 platform for contractors worldwide. We have incredible adoption from contractors, and a gritty team that truly cares about what they're working on. We’re looking for a Senior iOS engineer to join our team and be responsible for launching a suite of new products into our mobile platform.

Work on a mobile product that people actually use, and LOVE. Check out our mobile apps here:

Joist for iOS: https://itunes.apple.com/app/id592163563 (over 10k reviews)

Sound like you?

Passion for mobile You're up to date on the latest trends in the iOS ecosystem and you consider yourself a thought leader. You know all the release rumours and you sign up for early access for everything Apple announces.

Innovation iOS gives the developer a lot of freedom to create truly unique user experiences. You're always looking for the next way to push the boundaries of what can be achieved on mobile devices.

Performance You understand that a hundred milliseconds of delay can be the difference between a delightful and a frustrating user experience. You can dive into the internals of iOS libraries to understand why your code is not running as fast as you expect.

Delivery Focused You love seeing your work pushed to the App Store. You know how to navigate the app submission process, and have run beta test programs before. You strive to submit your next iteration on your app immediately after the previous submission gets approved, all while never sacrificing quality.

Teamwork Many of the problems we encounter require insight from many parts of the business. Your ability to coordinate and communicate is essential to our success.

About Joist

Started in 2013, Joist is an end to end vertical software platform for small & medium sized trades contractors. Joist gives trades contractors the software tools & best practices needed to deliver incredible home renovation experiences. We've got the largest contractor network in the world using Joist to power their business, and we have major growth planned.


Tools of the Trade

  • BS/MS in Computer Science, or equivalent hacking experience.
  • 4+ years of experience in iOS Development
  • Must have built and shipped at least 2 apps to the Apple App Store
  • Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics and Core Text
  • A deep familiarity with Swift, Objective­-C, and Cocoa Touch
  • Ability to work across multiple API versions and Devices
  • Experience writing test cases, and test automation scripts
  • Ability to profile mobile apps to understand performance concerns
  • Solid OOP / Architecture Design Skills
  • Regularly review and mentor the work of junior team members

Our Tech Stack

  • iOS (Objective-C, Swift 4.x, XCode 10.x)
  • Automation & Delivery (Kiwi, Fastlane, Jenkins)
  • Back-end (Ruby on Rails 5)


  • Healthcare & Dental Benefits
  • Monthly Team Events
  • Pet Friendly Office
  • Lunch and Learns
  • Joist swag to make you feel right at home
  • Free Healthy Snacks & Free Coffee
  • Prime Downtown Toronto Location

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  • Location
    Toronto, Ontario
  • Department
    Joist - Engineering
  • Employment Type
    Full Time
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