Varun Soni

Proof of Experience

Impact India Foundation · Mar 2026 – Present

Architected and independently led the end-to-end migration of the WFNR app from iOS 12 (UIKit/Storyboard) to iOS 15 (SwiftUI/MVVM/Combine), modernizing the codebase for faster future feature delivery.
Engineered a universal, offline-first iPhone/iPad experience in SwiftUI with real-time session scheduling and automatic Core Data sync on reconnection, keeping the app fully functional without internet access.
Built an in-app SOS feature enabling users to instantly alert emergency contacts with their real-time location during critical situations, improving user safety and response time.
Developed a doctor listing module allowing users to browse specialists by department, view detailed profiles, and book consultations directly within the app.
Built the AMC Mumbai app's "Join Us Member" module (Objective-C) with dynamic, city-based pricing logic and integrated the Razorpay payment gateway for secure membership transactions.
Migrated both apps from CocoaPods to Swift Package Manager (SPM) and owned the full release cycle build configuration, TestFlight distribution, and production deployment.
Implemented push notification workflows for appointment reminders and session updates, improving user engagement and reducing missed sessions.
Used Claude Code and ChatGPT to accelerate the SwiftUI migration, unit test generation, and debugging.
Collaborated with designers and backend engineers in an agile setup to translate product requirements into polished, accessible SwiftUI screens.

SparkBrains · Dec 2025 – Mar 2026

Built Fretboard Buddy, a production-grade guitar learning app, from scratch using Swift, SwiftUI, SwiftData, and AVFoundation, architected end-to-end with MVVM for scalable state management.
Engineered a high-performance interactive fretboard engine with pinch-to-zoom and 20+ fret horizontal scrolling, delivering smooth 120Hz animations validated through Instruments profiling.
Implemented a REST API-powered lessons module with fullscreen video playback and unread tracking, and integrated In-App Purchases while managing releases via App Store Connect and TestFlight.

RedDoorz · Feb 2024 – Oct 2025

Contributed for ~1.8 years across RedDoorz's core products the RedDoorz hotel booking app, RedDoorz Reseller, and RedDoorz Grow (Swift, UIKit, SwiftUI, Core Data) - including Live Activities with push notifications for real-time lock-screen and Dynamic Island updates that drove higher daily active usage.
Reduced crash rate by 12% and improved responsiveness through performance profiling and memory optimization with Instruments.
Designed and implemented the Booking Modification feature in RedDoorz Reseller, enabling users to easily update reservations and improving booking experience and customer satisfaction.
Migrated the RedDoorz Offers page from Storyboard to SwiftUI, resulting in faster load times, improved performance, and easier long-term maintenance.
Developed a dynamic app icon feature that automatically updates based on timestamp, delivering a personalized experience without intrusive custom alerts.
Integrated REST APIs for booking and property management and applied MVVM/MVC architectures for scalable, maintainable code across all three apps.
Integrated third-party libraries via CocoaPods for analytics, push notifications, and deep linking, and contributed to App Store deployments by testing builds, managing version updates, and incorporating user feedback.
Built an internal Human Resource Management app (Swift, UIKit, Core Data) covering leave management, attendance tracking, task management, and employee records, with unit testing for reliability.

TechieShubhdeep IT Solutions Pvt Ltd · Aug 2023 – Jan 2024

Wipro · Jan 2023 – Mar 2023

No completed sessions yet. Anything Varun finishes shows up here with the evidence behind it.