iOS Developer

Senior Full-Stack iOS Developer (On-site | Full-time)

Experience

5+ years of hands-on iOS development

Location

On-site (Full-time)

Expected CTC

12-15 lakhs

Role Overview

We are seeking a Senior iOS Developer with deep, production-level experience in designing, building, shipping, and maintaining high-quality iOS applications.

This role requires strong ownership , system-level understanding of iOS , and the ability to independently architect, develop, debug, and scale real-world mobile applications.

This is not a junior or UI-only role. The ideal candidate has strong fundamentals, extensive hands-on experience with Apple frameworks, and a mindset focused on reliability, performance, and edge-case handling , especially for safety-critical features.

Key Responsibilities

• Design, develop, and maintain production-ready iOS applications using Swift and SwiftUI
• Own the iOS codebase end-to-end, including architecture, performance, testing, and debugging
• Implement offline-first features , background execution, and real-time updates
• Integrate backend services (primarily Firebase ) securely and efficiently
• Ensure app reliability across all lifecycle states (foreground, background, terminated)
• Proactively identify edge cases, performance bottlenecks, and failure scenarios
• Collaborate closely with product and business stakeholders
• Own App Store releases , TestFlight builds, and post-release fixes

Required Technical Skills

A. iOS Front-End Development

• Strong command of Swift
• Protocol-oriented programming
• Memory safety, optionals, value vs reference types
• SwiftUI
• Declarative UI patterns
• State management: @State, @Binding, @ObservedObject, @StateObject, @Environment
• Navigation, animations, transitions
• Understanding SwiftUI performance and view lifecycle

B. Deep iOS System Understanding (Mandatory)

Persistence

• Core Data or alternatives (e.g., Realm)
• Data modeling, migrations, and performance optimization
• Offline-first strategies and sync logic

Concurrency & Execution

• GCD vs async/await
• Structured concurrency
• Task cancellation and priority management
• Clear understanding of:
• Main thread vs background threads
• Task creation and scheduling
• Avoiding race conditions, deadlocks, and UI blocking

Background Execution

• Background tasks and app lifecycle states
• Reliable handling of background location updates

Location & Device Frameworks

• CoreLocation
• Location permissions and accuracy modes
• Battery optimization for continuous tracking
• Handling edge cases (app killed, background refresh limits)

C. Backend & Firebase Integration

• Strong understanding of Firebase architecture
• Firestore / Realtime Database data modeling
• Firebase Security Rules (access control & validation)
• Cloud Functions (Node.js JavaScript or TypeScript)
• Firebase iOS SDKs:
• Authentication
• Firestore / Realtime Database
• Cloud Messaging (Push Notifications)
• Analytics & Crashlytics

D. Development Tools & Workflow

• Advanced usage of Xcode
• LLDB debugging
• Instruments (memory leaks, performance profiling)
• Crash logs and diagnostics
• Comfortable using AI-assisted tools (e.g., Cursor, Claude)
• Habit of maintaining internal documentation or code wikis

E. Architecture & Code Quality

• Strong experience with MVVM (mandatory)
• Exposure to Clean Architecture (preferred)
• Writing modular, testable, and scalable code
• Dependency injection
• Experience managing and refactoring large codebases

F. Testing & Quality Mindset

• Strong focus on real-world and edge-case testing
• Ability to think like a user under adverse conditions:
• Poor network
• Background execution
• Low battery
• Permission changes
• Systematic testing across app states (foreground, background, terminated)
• Clear, reproducible bug reporting with steps and impact
• Strong ownership mindset for app reliability

Non-Negotiables

• On-site work only (no remote or hybrid)
• Immediate or near-immediate joining preferred
• 5+ years of professional iOS development experience
• Strong iOS portfolio with 45 live, production-level apps
• Demonstrable experience shipping and maintaining apps on the App Store
• Ability to independently own the entire iOS stack without external assistance
• High English proficiency