Headline

iOS Engineer

About

Senior iOS Engineer with 6+ years architecting and shipping high-performance iOS apps — maintaining 99.73% crash-free sessions across 150K DAU by resolving complex memory leaks, enforcing MVVM Clean Architecture, and managing concurrency with Swift Concurrency and Combine. Experienced across Kotlin Multiplatform, Flutter, and real-time systems (VoIP, WebSockets, CallKit). Open to Senior iOS roles in Bengaluru / Hyderabad.

Location

Bengaluru

AI stack

codex

cursor

Work experience

Staff Software Engineer at People Interactive, Oct 2024 - Jul 2026 · 1 yr 10 mos, Pune District · Hybrid, Identified and resolved memory retain cycles in core modules by monitoring Firebase Crashlytics crash reports and diagnosing root causes with Xcode Memory Graph Debugger, improving crash-free session rate from 99.34% to 99.73% across 150K+ daily active users. Increased user consultation revenue by ~30% by architecting a fault-tolerant VoIP notification system — integrating CallKit with WebSocket as a fallback and enforcing a serial dispatch queue to prevent duplicate call triggers, ensuring zero missed or double-fired call events in production.

Senior iOS Engineer at People Interactive, Oct 2023 - Jul 2026 · 2 yrs 10 mos, Pune District · Hybrid, Engineered the real-time communication layer using WebSockets, VoIP/CallKit, Swift Concurrency, and Combine — enabling live chat, audio/video calling, and background push sync while driving reactive SwiftUI UI updates across 150K+ daily active users. Drove monetization by delivering in-app purchases, blue-tick verification, and Live Activity widgets for real-time session tracking, directly contributing to premium plan conversion growth. Improved reliability of push infrastructure by designing a unified notification architecture for both user-visible and silent pushes, eliminating delivery failures caused by background state transitions.

iOS Engineer at HealthKart, Jan 2020 - Oct 2023 · 3 yrs 10 mos, Gurugram, Optimised Home and Product Detail modules by implementing lazy loading, image caching, and GCD-based concurrent networking — reducing redundant API calls by ~50% and achieving a 99.87% crash-free rate across 10–12K daily active users. Migrated ~60% of the legacy Objective-C codebase to Swift over 3 months, introducing SwiftUI and MVVM architecture — improving code maintainability and reducing new engineer onboarding time by ~30%. Expanded core app capabilities by integrating Razorpay, Firebase Analytics, HealthKit, Google Fit, and Fitbit SDKs — enabling seamless payments, event tracking, and health data sync while standardising inter-module communication patterns across 8+ feature modules.

SDE Intern at Techtonic Enterprises Pvt. Ltd., Jun 2019 - Jul 2019 · 2 mos, Kaushambi, Uttar Pradesh, India, Learnt state management and problem solving. Solved challenging problems

Education

Bachelor of Technology - BTech, Computer Science, KRISHNA INSTITUTE OF ENGINEERING AND TECHNOLOGY, GHAZIABAD

Public links

github: https://github.com/iamazharuddin