Onkar Mishra

Led enterprise iOS development using Swift and SwiftUI, including a large UIKit-to-SwiftUI migration with a reusable screen-hosting pattern and a shared SwiftUI design system. Delivered end-to-end app features with Apollo GraphQL/REST integrations, offline caching, concurrency, and performance-focused debugging. Owned production reliability using Firebase Crashlytics, wrote XCTest coverage for key view models, and contributed to CI/CD-driven releases while mentoring engineers through code reviews.

Re-architected a messaging application for offline-first behavior using Couchbase and improved per-screen data fetching to reduce load times. Built real-time messaging via XMPP, plus supporting features such as helpdesk grouping, location-based discovery, and link previews. Implemented secure media upload using Amazon S3 with local caching and created reusable UI components to enhance user experience metrics.

Built two iOS applications in Swift and Objective-C, including real-time nearby-driver tracking. Implemented WebSocket-based updates (Socket.IO) and integrated Core Location services for location-aware experiences. Integrated booking and payment REST APIs and contributed documentation that reduced developer onboarding effort.