Swift & Data Structures
Master Swift fundamentals, iOS-specific algorithms, and common data structure problems. Focus on array manipulation, string processing, and tree traversals.
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Focus areas that matter most for mobile development positions. Explore key insights and preparation tips to help you excel in your interview process.
Master Swift fundamentals, iOS-specific algorithms, and common data structure problems. Focus on array manipulation, string processing, and tree traversals.
Design scalable iOS applications with proper architecture patterns, data persistence, and network layer design.
Architecture
MVVM, VIPER, Clean Architecture
Data Flow
Core Data, networking, caching
Performance
Memory management, threading
Different companies emphasize different aspects of iOS development based on their product needs and scale.
Apple
Deep iOS frameworks, performance optimization
Uber
Real-time data, location services, scalability
Compare cost-of-living buying power and how crowded the market is versus other major tech cities—so you can focus your search where the odds fit your goals.
Chicago offers approximately 35% lower housing costs and 22% lower overall living expenses compared to San Francisco, allowing iOS engineers to maximize their earning potential while enjoying a world-class city with excellent career growth opportunities.
Chicago's iOS engineering market shows healthy demand with less saturation than coastal hubs. Strong fintech and enterprise presence creates diverse opportunities.

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👉 Get free daily job postsdefinity is a Chicago-based agentic data engineering platform that embeds AI agents inside enterprise lakehouse and Spark pipelines. Its in-motion runtime intelligence helps data teams cut platform cost, prevent pipeline incidents before they impact production, and validate code or upgrade changes automatically.
Raised
$12M
Series A · 2026
Key contacts
7
Leadership & hiring contacts indexed
HQ market
Chicago, IL
United States
memQ is a Chicago-based quantum networking company founded in 2021 as a technology spin-out from the University of Chicago. The company develops quantum network interface controllers (QNICs) and quantum memory modules (QMMs) that enable different types of quantum computers to interconnect and work together over standard optical telecom links without collapsing the quantum state. memQ's chip-scale xQNA portfolio provides modular quantum networking solutions enabling scale-out configurations, cooperative processing, and blind cloud quantum computing for distributed quantum computing infrastructure.
Raised
$10M
Series A · 2026
Key contacts
-
Leadership & hiring contacts indexed
HQ market
Chicago
United States