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Jashan singh Deol

@jashansinghdeol

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iOS developer building real-time VoIP calling and offline chat apps at scale.

India

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What I'm looking for

I want to build reliable, real-time mobile experiences—VoIP calling and offline-first chat—using SwiftUI/SwiftData, strong architecture, and performance-focused UX. I enjoy owning features end-to-end and collaborating closely to ship fast.

I’m an iOS Developer focused on shipping production-ready, real-time consumer experiences—from VoIP calling to socket-based chat—using SwiftUI/SwiftData and robust networking patterns. I’ve built end-to-end in-app voice calling with Agora SDK and CallKit + PushKit, including VoIP push handling, lock-screen answering, and audio-route management.

I also migrate and harden apps for reliability: I moved chat from UIKit + Core Data to SwiftUI + SwiftData for thread-safe, offline-first access, and I fixed an EXC_BREAKPOINT crash by routing network-layer callbacks to the main thread. Beyond iOS, I delivered cross-platform chat + VoIP for TruMitr (Flutter), and I’ve created reusable Swift packages and adopted a Liquid Glass design system to improve consistency without sacrificing performance.

Experience

Work history, roles, and key accomplishments

Current

iOS Developer

Current

TrulyMadly

Jan 2025 - Present (1 year 6 months)

Built end-to-end VoIP voice calling in a live dating app using Agora with CallKit and PushKit, including lock-screen answering and audio route state sync. Migrated chat from UIKit/Core Data to SwiftUI/SwiftData for offline-first access and improved production stability by fixing a background-thread EXC_BREAKPOINT crash.

PushKit VoIP SwiftUI Swift Data UIKit Core Data Socket.IO Socket Based Chat Actors Async Await Main Thread Dispatch EXC_BREAKPOINT CATransaction Offline First Swift Package Manager Design Systems

Jr. iOS Developer

Authenticode

Jun 2024 - Jan 2025 (7 months)

Built and shipped the Silctn iOS client app from scratch in Swift, including custom animations and transitions. Integrated REST APIs for real-time data sync using Alamofire/URLSession and participated in requirement gathering and feasibility analysis.

Swift iOS Development UIKit Alamofire URLSession REST APIs Custom Animations Requirements Gathering Feasibility Analysis

iOS Development Intern

Deftsoft Pvt. Ltd.

Nov 2023 - May 2024 (6 months)

Developed responsive iOS user interfaces using UIKit and Auto Layout and integrated REST APIs. Contributed to client projects through code reviews and feedback cycles.

UIKit REST APIs Code Review