Below are representative questions to calibrate your preparation. Practice structuring answers, narrating tradeoffs, and connecting implementation to user value.

Technical / Platform (iOS)

This area probes depth in Swift, the iOS runtime, UI frameworks, concurrency, networking, and testing.

• How would you design an offline-first editing flow for tasks and handle conflict resolution on sync?
• Compare async-await, GCD, and OperationQueue for coordinating multiple network requests.
• When would you choose SwiftUI over UIKit (and vice versa)? How do you bridge them?
• Walk through diagnosing a memory leak and UI hitch using Instruments.
• How do you structure dependency injection to maximize testability?

Mobile Architecture / System Design

Expect end-to-end designs that include client architecture, API considerations, and rollout safety.

• Architect a scalable notifications system: ingestion, local storage, grouping, and badge counts.
• Design a modular feature for a task detail view with attachments and real-time updates.
• Propose a migration from a legacy networking layer to modern async code with minimal disruption.
• How do you manage feature flags, staged rollouts, and experiment analysis on mobile?
• What is your approach to state management for complex, nested UI with derived data?

Coding / Algorithms (Mobile-centric)

You’ll implement solutions with an emphasis on correctness, readability, and testability under mobile constraints.

• Implement debounced search against a paginated API with request cancellation.
• Merge and sort large local and remote datasets efficiently while minimizing memory footprint.
• Parse and render a nested comment thread with expand/collapse and incremental updates.
• Implement a retry/backoff strategy with idempotency for a flaky endpoint.
• Write tests for an async image cache with eviction policy and failure handling.

Product / Behavioral / Leadership

Interviewers assess ownership, collaboration, and how you elevate teams through AoRs.

• Tell us about an AoR you owned—what you improved, how you measured it, and the outcomes.
• Describe a time you pushed back on scope to protect quality—how did you align stakeholders?
• How have you mentored peers to improve code quality or testing practices?
• Share a disagreement with Design or PM—how did you resolve it and what did you learn?
• Give an example where you paid down tech debt to unlock product velocity.

Problem-Solving / Debugging & Reliability

This explores how you approach ambiguity, triage issues, and safeguard long-term health.

• A crash rate spikes after release—walk through your investigation and rollback criteria.
• How would you isolate and fix a heisenbug in a flaky async test?
• What observability would you add to validate a performance optimization?
• Explain your approach to designing a robust background sync pipeline.
• How do you prevent regressions when refactoring a critical data layer?

This module summarizes compensation insights for the role, including the current base salary range of approximately $171,000–$190,000 USD, with potential additional equity and benefits. Treat it as a starting point: final compensation reflects level, experience, and interview performance. Your recruiter will calibrate expectations as you progress.

Deep Dive into Evaluation Areas

Mobile Platform Fundamentals (iOS-first, with cross-platform awareness)

Mastery of platform fundamentals is non-negotiable. Interviewers assess your command of Swift, memory management (ARC), value/reference semantics, concurrency, layout systems (Auto Layout/SwiftUI), networking, persistence, and observability. Expect to discuss how these choices scale in a large, collaborative codebase.

Be ready to go over:

• Concurrency & threading: async-await, GCD, Operations, avoiding deadlocks and priority inversions
• App architecture: MVC/MVVM/VIPER/Composable patterns; dependency injection; modularization
• Offline & data sync: caching, conflict resolution, background refresh, reachability patterns
• Advanced concepts (less common): Instruments profiling, memory graphs, layout/perf debugging, SwiftUI interoperability strategies

Example questions or scenarios:

• "Design an offline-first task editor with conflict resolution between device and server."
• "Refactor a view controller that grew too large—how do you modularize and test it?"
• "Walk through diagnosing and fixing a UI jank caused by main-thread contention."

Coding Quality, Testing, and Reliability

You will be evaluated on the quality and safety of your code under realistic constraints. Asana values well-structured, documented, and testable code, with clear error handling and strong boundaries.

Be ready to go over:

• Testing strategy: unit, snapshot, integration, and UI testing; testability via DI and protocol-driven design
• Observability: logging, metrics, crash analytics, alerts, thresholds, and regression prevention
• Code review mindset: readability, naming, interfaces, and incremental refactors
• Advanced concepts (less common): flaky test isolation, hermetic testing, deterministic async tests

Example questions or scenarios:

• "Design a test plan for a new notifications feature touching push, local storage, and deep links."
• "You inherit a feature with rising crash rates—how do you triage, fix, and prevent regressions?"
• "What’s your approach to building a reliable async data layer with robust error handling?"

Mobile Architecture & System Design

Expect end-to-end design prompts that integrate client architecture, API contracts, sync, and performance. Interviewers will probe your ability to define good module boundaries, reason about state, and evolve systems safely.

Be ready to go over:

• State management: single source of truth, derived state, invalidation, thread safety
• Networking architecture: pagination, retries/backoff, idempotency, request deduplication
• Feature flags & rollouts: blast-radius reduction, experiment design, telemetry
• Advanced concepts (less common): background processing constraints, deep link routing, secure storage practices

Example questions or scenarios:

• "Architect a collaborative task view that scales to thousands of updates with real-time presence."
• "Propose a migration plan from a legacy networking layer to modern async-await."
• "Design a feature flag strategy to safely roll out a redesigned task composer."

Product Sense, UX, and Accessibility

As a product-minded engineer, you translate user needs into simple, delightful experiences. Interviewers look for empathy, accessibility awareness, and a habit of validating assumptions with data.

Be ready to go over:

• UX tradeoffs: progressive disclosure, optimistic UI, latency masking
• Accessibility: VoiceOver, Dynamic Type, color contrast, hit targets, semantic structure
• Instrumentation: eventing for funnels, retention signals, and iteration loops
• Advanced concepts (less common): metrics-driven design debt paydown, A/B test pitfalls

Example questions or scenarios:

• "How would you design quick-add task flow to minimize taps and cognitive load?"
• "Walk through making a complex board view accessible and keyboard/VoiceOver friendly."
• "What signals would you instrument to validate a redesigned notifications tab?"

Collaboration, Ownership (AoRs), and Leadership

You will be assessed on your ability to own outcomes, rally collaborators, and elevate engineering standards. Asana’s AoR system expects proactive stewardship: planning, execution, quality, and continuous improvement.

Be ready to go over:

• Planning & execution: breaking down work, risk management, delivery predictability
• Codebase stewardship: refactors aligned to product goals, debt paydown strategies
• Mentorship & reviews: coaching, structured feedback, inclusive collaboration
• Advanced concepts (less common): incident leadership, cross-team alignment, mediated decision-making

Example questions or scenarios:

• "Describe a time you led a refactor that unblocked multiple teams—how did you sequence it?"
• "How do you balance shipping speed with long-term maintainability under product pressure?"
• "Tell us about a design disagreement—how did you reach a principled decision?"