Shubhankar bhavsar

Architected bidirectional SDKPWA communication framework, enabling seamless interaction between native iOS and WebView-based clients across multiple B2B products. Engineered modular communication layer decoupling SDK dependencies, allowing independent SDK teams to integrate without hard dependencies improving scalability and long-term maintainability. Solved inter-SDK communication under strict dependency constraints, designing a shared event-bus architecture adopted across all client integrations. Implemented advanced WKWebView lifecycle management (WKProcessPool, cache policies, session persistence), eliminating stale content issues in hybrid apps and improving reliability by ~90%. Built PWA preloading and WebView reuse architecture, significantly improving perceived performance and session consistency across app launches. Designed push notification observability pipeline (APNs/Firebase App SDK Backend), enabling centralized payload logging, analytics, and debugging across client apps. Built MongoDB-based debugging and data reconstruction workflows for production issues including sleep timeline reconstruction and health metric inconsistency root-cause analysis. Led ELT pipeline work to populate analytics tables and integrate with Metabase, enabling business-level visibility into user health metrics and engagement data. Established data lifecycle architecture understanding (raw normalized aggregated business views) enabling faster debugging and improved system observability. Conducted regular architecture reviews and PR reviews across mobile and backend codebases; mentored junior engineers and established team coding standards. Created SDK integration checklists, onboarding guides, and rollout/rollback strategies reducing client integration time to under 1 day and lowering operational risk. Leveraged AI tools (Claude, Codex) to accelerate backend work (Node.js, Rust scripts), debug unfamiliar codebases, and contribute beyond core iOS domain. Delivered production apps serving 100K+ users with high stability and crash-free performance across B2B and B2C wellness products.

Led architecture improvements across large-scale iOS applications; reduced defect rate by 40% through modular design and structured code review processes. Drove database migration from SQLite to Core Data for 1.3M+ users (Freegal Music) with 95% success rate; re-architected app using MVC/VIPER, resulting in 3x increase in downloads. Improved development efficiency by 15% through better estimation frameworks and modular sprint planning; maintained 98% on-time delivery rate across all projects. Conducted technical knowledge-sharing sessions; mentored engineers on iOS architecture patterns and performance optimization practices. Built custom JavaScript library for EPub annotation sync across platforms (IAPMO Codes); integrated OpenTok SDK for real-time video (MeetHook).

Developed and shipped multiple iOS applications (Brandlive, Happiest Hour, Kuber App, SnapNPop) across live streaming, social, e-commerce, and child-care domains. Converted legacy Objective-C codebase to Swift (Brandlive); integrated live media streaming (RTMP) and WebView broadcasting client awarded bonuses for on-time delivery. Built XMPP-based real-time one-to-one chat (Happiest Hour) and location-based check-in features; implemented Google Maps + social features. Architected AWS-backed app (Kuber) using Cognito, DynamoDB, Mobile Hub, and API Gateway (Node.js); managed full-stack development end-to-end. Reduced defect rate by 20% through improved coding standards and review processes; mentored junior engineers and improved team onboarding efficiency.