shrey shrivastava

shrey shrivastava

iOS Architect


About

Professional Background: 15 years of experience building high-scale iOS applications and SDKs across finance, retail, enterprise, health science, fleet management, and defense domains. Core Philosophy: Strong advocate of SOLID principles and clean architecture to drive scalable, maintainable mobile systems.

Skills
iOS
Swift
Objective-C
CoreML
NLP
CoreData
SDK Design
Swift Package manager
BLE
Bluetooth
Apple health kit
Experience

Lead Consultant

Coffeebeans Consulting

Jun 2022 to Present
  • Architected the native Objective-C core of a high-scale UPI super app serving tens of millions of users.
  • Led the ground-up redesign of a Merchant UPI Payment SDK, replacing a legacy, singleton-heavy architecture with a SOLID-compliant, layered framework with robust Dependency Injection to guarantee 99.9% payment reliability.
  • Designed and built micro frontend architecture for enterprise super app with 8 business modules enabling plug-n-play feature.
  • Led architectural adoption for 20+ engineers across 4 squads, defining coding standards, architectural guidelines, and integration patterns.
  • Improved performance and memory efficiency through clean architecture boundaries and optimized Core Data usage, enabling smooth feature expansion without regressions.
  • Praised by client Senior Director for modular architecture leadership; platform enabled enterprise apps that won global CIO 100 Awards in 2023 (Sales App) and 2024 (Leader App) for technology innovation and business transformation.

Senior Engineering Lead

Persistent Systems Ltd

Jan 2016 to May 2022
  • Architected an enterprise Patient Engagement app integrating Bluetooth Low Energy (BLE) blood pressure and glucose monitors to capture and sync real-time vital health telemetry via cloud REST APIs.
  • Served as primary technical point of contact for enterprise clients; awarded Top Talent of the Year (2021) and multiple Bravo Awards for delivery excellence and cross-platform ownership.
  • Led cross-functional iOS/Android engineering teams (5+ developers) through system design, code reviews, and risk analysis, while establishing clean/modular architecture across mobile solutions.
  • Built reusable, adaptive authentication frameworks and integrated third-party security platforms (Nok Nok Labs) to ensure strict healthcare compliance, secure offline caching, and real-time data sync.
  • Engineered centralised deep-linking and modular navigation frameworks for high-traffic media streaming applications, established clean separation of concerns across feature modules.
  • Spearheaded exploratory technical spikes and experimental mobile capability frameworks (including early computer vision and asset-recognition prototypes), evaluating feasibility and performance boundaries for production integration.

Senior IOS Developer

Harbinger System Pvt. Ltd

Jun 2014 to Dec 2015
  • Resolved critical performance issues in a UK military surveying application suffering from UI freezes and long load times.
  • Redesigned data flow by moving API calls off the main thread and implementing Core Data background contexts with safe merging into the main context.
  • Achieved smooth UI rendering and significantly improved real-time interactions through proper multithreading and data handling.
  • Developed modular features including chat, task execution, location tracking using Apple Maps, and multi-language localization.
  • Earned leadership confidence through practical, production-ready performance optimisations.

iOS Developer

Quantum Ventures Software Pvt. Ltd | Creative Global Services Pvt. Ltd

Mar 2011 to Jun 2014
  • Developed multiple iOS applications using Objective-C, integrating REST APIs and delivering production-ready features.
  • Improved application performance and stability through iterative optimization and debugging.
Education

B.E

RGTU, BHOPAL · 70.1%

Jun 2006 to Jun 2010
shrey shrivastava · DevFest Hyderabad 2026