Sahil Kumar

Experience

1. Ios Developer

   HBSS India

   Jul 2023 — Present · Gurugram, IN

   Designed, architected, and optimized 6+ production-grade iOS applications across 20+ targets and 5 white-label variants (e.g, Qryde, MartAopp, EzRide, SacRT Go) with mission-critical features including trip booking, live GPS tracking, secure in-app payments, and offline-first workflows-[] Consistently maintained 95%+ crash-free rate across high-traffic rider and driver platforms by leveraging Xcode Instruments, Crashlytics, advanced memory profiling, and proactive runtime monitoring-[] Migrated large legacy projects to MVVM, Coordinator, and modular architectures, improving code reusability, scalability, and enabling unit/UI test coverage expansion-[] Built secure networking layers using URLSession, background tasks, TLS certificate pinning, request retries, and caching strategies, ensuring resilience under poor connectivity and compliance with App Store security standards-[] Proactively resolved critical production crashes, implemented unit testing frameworks (XCTest), snapshot/UI automation scripts, and integrated with CI pipelines for streamlined QA cycles-[] Leveraged Instruments, Xcode energy diagnostics, and thread analyzers to eliminate bottlenecks, reducing memory leaks, UI lag, and network latency — resulting in measurable performance gains-[] Partnered cross-functionally with PMs, backend engineers, and QA teams, driving improvements in Agile ceremonies, CI/CD pipelines (GitLab, GitHub Actions), and automated release cycles, ensuring timely, high-quality delivery

Education

• Kendriya Vidyalaya (KV)

  High School, Computer Science

• Delhi Technological University (Formerly DCE)

  Bachelor of Technology - BTech, Computer Science

• Kendriya Vidyalaya (KV)

  School