Karamjit Singh

About Karamjit Singh

I am a Technology Driven Lead iOS Engineer with over 10 years of end-to-end mobile development experience, specializing in SwiftUI, UIKit modernization, and scalable app architecture. My journey has been marked by a commitment to building and optimizing high-traffic, enterprise-grade applications for Fortune 500 clients across various sectors, including Telecom, Retail, E-Commerce, and Healthcare. I pride myself on my ability to lead architectural decisions and drive engineering excellence within cross-functional teams.Throughout my career, I have showcased my expertise in Clean Architecture, MVVM, VIPER, and modern asynchronous programming patterns. I have a strong focus on performance optimization, user-centric UI/UX, and maintaining rigorous code quality. One of my notable achievements includes enhancing the Visible Wireless iOS app, where I led a major redesign that improved performance by 35% and reduced critical screen load times by 42%. I am also skilled in leveraging cutting-edge tools and technologies to optimize development workflows and boost project efficiency.Key Achievements- Enhanced the Visible Wireless iOS app, improving performance by 35% and reducing load times by 42%- Spearheaded A/B testing initiatives that boosted click-through rates by 28% and reduced bounce rates by 33%- Successfully managed the deployment of multiple applications on the App Store, ensuring compliance and performance optimization.

Experience

1. Lead Experience Engineer (Ios)

   Publicis Sapient

   Dec 2019 — Present · Gurugram, IN

   Goldman Sachs — Senior iOS DeveloperIn my current role at Goldman Sachs, I lead the end-to-end development and management of high-performance mobile applications, delivering secure, scalable, and reliable solutions for critical financial platforms. I design and implement server-driven architectures that enable dynamic UI updates, faster feature rollouts, and improved engineering efficiency.I architect reusable and modular components using MVVM and Clean Architecture, ensuring high maintainability, testability, and alignment with enterprise-grade performance and compliance standards.Key Achievements:Led the architecture and development of scalable mobile systems, improving code reusability across multiple applicationsAccelerated feature delivery through server-driven UI and modular designStrengthened CI/CD pipelines to support seamless and reliable app releasesImproved app performance, stability, and maintainability at scaleVerizon Visible — Senior iOS DeveloperAt Verizon Visible, I managed the end-to-end lifecycle of the Visible mobile application, ensuring consistent performance and seamless feature delivery for a large user base. I played a key role in building a scalable architecture and enhancing engineering productivity.I engineered reusable components using a server-driven architecture, significantly reducing development time and enabling faster iteration across features. I also contributed to defining the overall application architecture using MVVM and Clean Architecture principles.Key Achievements:Successfully managed App Store deployments and improved app visibility for the Visible Wireless Service appBuilt scalable, reusable components that reduced development effort and increased modularityLed architectural decisions that improved engineering efficiency and cross-app reusability

Education

• St Jude's High school

  Matriculation

  2003

• Bmse college of Engineering

  Bachelor of Technology (BTech), Information Technology

  2007 — 2011

• Khalsa College Amritsar

  Secondary, Science