Summary
Overview
Work History
Education
Skills
Timeline
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Sanjay Kumar

Gurugram

Summary

Experienced and impact-driven iOS Developer with over 8 years of hands-on expertise in designing, developing, and maintaining scalable mobile applications using Swift, Objective-C, and modern architectural patterns like MVC, MVVM, and Clean Architecture. Proficient in building high-performance apps with a strong focus on user experience, offline capabilities, and third-party integrations. Demonstrated success in leading full app lifecycles, from requirement analysis and prototyping to App Store deployment, contributing to increased user engagement, revenue growth, and cross-functional efficiency. Known for creative problem-solving, adaptability, and a deep understanding of Apple’s HIG and ecosystem tools.

Overview

9
9
years of professional experience

Work History

Senior Software Developer

Pristyn Care
Gurgaon
04.2021 - 04.2024
  • Company Overview: Pristyn Care is a Gurgaon-based healthcare startup that provides patient-centric healthcare services throughout the journey from disease to health.
  • Developed the BeatXP app from scratch. BeatXP is an exclusive online platform for a wide array of healthcare and fitness products, at affordable prices.
  • Integrated smartwatch SDK for seamless data sync between wearable devices and mobile, boosting daily active users by 25%.
  • Developed the DocApp app from scratch, where doctors can create digital prescriptions.
  • Collaborated with doctors to build a digital prescription tool, cutting consultation-to-prescription time by 40%.
  • Applied Clean Architecture and MVVM to ensure scalable, testable codebases.
  • Utilized GitHub, Realm, and Webengage to manage version control, offline data, and user analytics.

Software Engineer

Nagarro
08.2015 - 03.2020
  • Company Overview: Nagarro is a wholly owned, independent subsidiary of the German-based Allgeier Holding. Nagarro provides technology services that address the complex business needs of its clients.
  • Worked on project Amway. This client is a well-known leader in the domain of online retail shopping and direct selling businesses. The project includes the development and enhancement of leading online retail stores in India.
  • Delivered iOS modules for Amway India’s mobile platform, improving e-commerce experiences for millions.
  • I worked on the project, OCR. This project involved the development of an iPad application that identifies and matches resident details from package labels, using an inbuilt OCR machine-learning model.
  • Led the development of an OCR-based iPad app to scan package labels, increasing label recognition accuracy to 95%.
  • Collaborated across teams to build an adaptive UI using Storyboards and Auto Layout.
  • Implemented machine learning modules for real-time data extraction and processing.

Education

M.Tech - Software Engineering

Delhi Technological University (DTU)
01.2015

B.Tech - Computer Science And Engineering

College of Engineering Roorkee
01.2013

Skills

  • iOS development: built 10 production-level apps with seamless UX/UI, and performance optimization
  • Swift and Objective-C: Delivered new features in Swift while maintaining Objective-C legacy projects
  • SwiftUI: created modern, declarative UIs to reduce UI development time by 40%
  • Xcode and Interface Builder: Expert in interface design, debugging, and optimization
  • Cocoa Touch frameworks: worked with Core Data, AVFoundation, and Core Animation for various use cases
  • Auto Layout and Adaptive UI: Designed responsive UIs for all iOS screen sizes
  • Clean architecture, MVVM, and MVC: structured codebases for scalability and ease of testing
  • Core Data and Realm: enabled offline storage with consistent data sync
  • GCD and NSOperationQueue: Efficient multitasking and threading
  • Restful APIs: integrated, scalable backends for real-time data and content
  • Payment gateway integration: used Braintree to enable secure, in-app transactions
  • App Store deployment: Released and maintained apps with 95% crash-free sessions
  • Analytics: integrated tools like WebEngage and UserExperior for data-driven decisions

Timeline

Senior Software Developer

Pristyn Care
04.2021 - 04.2024

Software Engineer

Nagarro
08.2015 - 03.2020

M.Tech - Software Engineering

Delhi Technological University (DTU)

B.Tech - Computer Science And Engineering

College of Engineering Roorkee

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Sanjay Kumar