Skip to Main Content

Job Title


iOS App Developer


Company : Open Systems Technologies


Location : Calgary, Alberta


Created : 2025-11-06


Job Type : Full Time


Job Description

Senior iOS App Developer Dept: Wealth Management TechnologyPosition DescriptionWere hiring (more than one) senior iOS Developer in Calgary for our E*TRADE and Firm's Wealth Management App team--a collaborative group of folks that value craftsmanship and curiosity. This position is on-site in our Calgary office (minimum of 3 days a week).Were not looking for someone who just knows how to build screens.Were looking for an engineer who understands why things work the way they do someone who can reason about performance, architecture, and the nuances of Apples frameworks like a true craftsman.What Youll 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 LocalAuthentication to CommonCrypto 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 workWhat Were Looking For Strong CS fundamentals: You understand memory management, data structures, algorithms, and concurrency and you know when to apply them Deep iOS expertise: Youve built and shipped complex apps, and you know the ins and outs of UIKit, SwiftUI, 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: Youve 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. Youre comfortable saying I dont know and having a relaxed, technical conversation Collaborative mindset: Youre 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 knowledgeHow We InterviewIn our Zoom screen, youll walk us through three examples from your own code: Swift Language: Were looking for depth concurrency, generics, protocol design not just syntax Apple APIs & Frameworks: Show us how youve used UIKit, SwiftUI, or lesser-known frameworks like AuthenticationServices or WebKit Apple Ecosystem: Talk about your experience with CI/CD, Xcode, performance tuning, app signing, crash analysis, or architecture decisionsWere not looking for perfection were looking for engineers who think deeply, communicate clearly, and care about the craft of iOS development.This is a full-time contract position and is expected to be at least one year in duration. The candidate must work on-site, a minimum of 3 days a week. Vacation policy is flexible with advance notice.Additional Required Skills: Strong written and verbal communication skills in English. BA/BS in Computer Science or related field, or equivalent practical experience.Additional Desired Skills Experience developing APIs. Awareness of Android app development. Strong user experience skills.