RASOON KUMAR

[email protected] • +91-9899671055 • Hyderabad, Telangana, India
LinkedIn: linkedin.com/in/prasoon3108

PROFESSIONAL SUMMARY

Senior iOS Technical Lead with 7+ years of comprehensive experience in designing, developing, and optimizing high-performance mobile applications using Objective-C and Swift. Expert in Cocoa Touch, Apple’s design principles, and scalable architecture patterns including MVC, MVVM, and MVP. Proficient in performance tuning, memory management, caching mechanisms, and full-cycle mobile development from design to App Store release. Strong experience in integrating third-party libraries, RESTful APIs, and creating stable, reliable, and efficient mobile solutions.

WORK EXPERIENCE

iOS Technical Lead
04/2025 - 11/2025
Keylong Systems
• Architected and developed scalable iOS applications in Swift and Objective-C using UIKit, SwiftUI, and Cocoa Touch
• Implemented Clean Architecture, MVVM, and MVP for maintainable and scalable codebases
• Collaborated with design and product teams, ensuring adherence to Apple interface guidelines
• Optimized memory and performance using Instruments and caching mechanisms (Core Data, Realm)
• Integrated RESTful APIs, third-party SDKs, Keychain, and biometric authentication
• Created unit and UI tests using XCTest and improved debugging and analytical standards
• Mentored team members on design patterns, concurrency, and coding best practices
Senior iOS Developer
07/2023 - 01/2025
Darwinbox
• Developed HR Tech suite modules in Swift and SwiftUI with strong concurrency and memory management
• Improved performance and reduced launch time through GCD, memory optimization, and caching
• Led feature releases and managed full mobile development lifecycle including App Store submission
Tech Lead, Product Development
05/2022 - 03/2023
Harman Connected Services
• Directed vehicle telemetry and diagnostics applications using Swift, Objective-C, and MVVM-C
• Reduced crash rate by 80% through advanced profiling, debugging, and testing
• Delivered App Store releases ensuring design and performance quality
Senior iOS Developer
03/2018 - 05/2022
Chawtech Solutions Pvt. Ltd.
• Published 12 iOS apps across healthcare and logistics domains
• Integrated AVFoundation, Core Location, and third-party SDKs
• Built secure payment flows and optimized UI/UX with strong lifecycle management

EDUCATION

Bachelor of Technology in Computer Science
01/2013
Rajarshi Rananjay Singh Institute of Management & Technology, Uttar Pradesh Technical University , Uttar Pradesh, India GPA: 3.8/4.0

SKILLS

PROJECTS

Darwinbox HR Platform
Technologies: SwiftUI, Firebase, async/await
• SwiftUI, Firebase, async/await
• Scalable data handling and robust caching
Automotive Infotainment System
Technologies: Swift, WebSocket, AVFoundation
• Swift, WebSocket, AVFoundation
• Real-time diagnostics and UI optimization
Healthcare Management Suite
Technologies: Swift, Core Data, Keychain
• Swift, Core Data, Keychain
• HIPAA compliance with optimized memory and security
LoadTrax Logistics App
Technologies: SwiftUI, Core Location, BGTaskScheduler
• SwiftUI, Core Location, BGTaskScheduler
• Live GPS and background sync

CERTIFICATIONS

AWS Certified Developer – Associate
01/2023
iOS Development Specialist, Stanford University
01/2021
Agile Certified Practitioner, PMI-ACP
01/2020

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