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Open Systems Technologies

iOS Developer

Open Systems Technologies
Canada · Contract · Mid-Senior

Responsibilities

• Contribute to the mobile application strategy

• Design and implement features for a suite of Mobile Applications

• Learn and apply new technologies, best design practices and usability patterns

• Contribute to end-to-end system architecture, working with back-end engineers

• Collaborate with product managers and other technical teams to create optimized and delightful user experiences.

• Maintain source code quality, provide code review feedback, and help create team coding principles.

• Mentor, train, and provide guidance to other team members and lead by example.


Basic Qualifications:

1. Bachelor's degree in Computer Science (or equivalent experience)

2. 7 years of software development experience with Apple platforms

3. Expert knowledge of Swift

4. Broad experience with the iOS SDK, particularly UIKit, SwiftUI, and Foundation

5. Understanding of reactive paradigms, experience using Combine and/or RxSwift is a plus

6. Solid understanding of the MVVM architectural pattern

7. Experience with consuming and designing RESTful API type web services.

8. Experience with realtime streaming frameworks like Socket.io, Ably, or LightStreamer is a huge plus.

9. Strong knowledge of iOS UI design principles, patterns, and best practices. iPadOS is a plus. The ability to cleanly integrate with both in one codebase is ideal.

10. Strong fundamentals with XCTest, and hopefully you’ve heard of Swift Testing. You don't aim for 100% coverage, but instead focus on what really matters.

11. Excellent debugging and optimization skills, including use of Instruments for identifying issues as they arise, and utilizing performance testing to ensure they don't happen in the first place.

Key Skills

Ranked by relevance

ios rxswift swift ui
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Posted
Feb 05, 2026
Type
Contract
Level
Mid-Senior
Location
Calgary

Industries

Staffing Recruiting

Categories

Engineering

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