Senior iOS App Developer
Job in
Calgary, Alberta, D3J, Canada
Listed on 2026-03-06
Listing for:
Open Systems Technologies
Full Time
position Listed on 2026-03-06
Job specializations:
-
Software Development
Software Engineer, iOS Developer, App Developer - Mobile/Web
Job Description & How to Apply Below
We’re looking for an engineer who understands why things work the way they do — someone who can reason about performance, architecture, and the nuances of Apple’s frameworks like a true craftsman.
What You’ll Do- Architect and build robust, scalable iOS applications using Swift and SwiftUI
- Write clean, testable, maintainable code with a strong emphasis on performance and reliability
- Dive deep into Apple APIs — from Local Authentication to Common Crypto — and use them to solve real-world problems elegantly
- Optimize performance using profiling tools, concurrency strategies, and thoughtful design
- Mentor other developers and help shape the technical culture of our Calgary office
- Use AI tools to accelerate development — not replace it — freeing up time for deeper thinking and more impactful work
- Strong CS fundamentals:
You understand memory management, data structures, algorithms, and concurrency — and you know when to apply them - Deep iOS expertise:
You’ve built and shipped complex apps, and you know the ins and outs of UIKit, Swift
UI, and the broader Apple ecosystem - Architectural thinking:
You can design modular, testable systems and have opinions about MVC, MVVM, and beyond - Curiosity and craftsmanship:
You care about how things are built, not just what gets built - Ecosystem fluency:
You’ve worked with CI/CD, app signing, provisioning, Instruments, and understand the full lifecycle of an iOS app - Clear communicator:
You can walk through your own code and explain your decisions. You’re comfortable saying “I don’t know” and having a relaxed, technical conversation - Collaborative mindset:
You’re thoughtful, curious, and easy to work with — we try to keep it not so fussy - AI maturity:
You use AI tools to enhance your workflow — not to substitute for foundational knowledge
- In our phone screen, you’ll walk us through three examples from your own code
- Swift Language:
We’re looking for depth — concurrency, generics, protocol design — not just syntax - Apple APIs & Frameworks:
Show us how you’ve used UIKit, Swift
UI, or lesser-known frameworks like Authentication Services or Web Kit - Apple Ecosystem:
Talk about your experience with CI/CD, Xcode, performance tuning, app signing, crash analysis, or architecture decisions
We’re not looking for perfection — we’re looking for engineers who think deeply, communicate clearly, and care about the craft of iOS development.
Additional Required Skills- Strong written and verbal communication skills in English.
- BA/BS in Computer Science or related field, or equivalent practical experience.
Position Requirements
10+ Years
work experience
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