Kumar Sharma

Senior iOS Developer with 15+ years of experience building enterprise-grade POS and payment applications. Specialized in Oracle Xstore Mobile, Tap to Pay integrations, retail mobility solutions, and scalable iOS architectures using Swift, SwiftUI, and Objective-C. Experienced in CI/CD, observability, and hardware integrations across retail ecosystems.

Associate Consultant at SkillNet Solutions India Pvt. Ltd. (2022-02 – Present)

• Delivered Oracle Xstore Mobile implementations across versions v20–v25.
• Implemented Tap to Pay on iPhone integrations using Aurus and Adyen payment platforms.
• Developed scalable iOS modules for barcode scanning and gift card workflows.
• Integrated RESTful APIs and JSON-based payment workflows.
• Implemented CI/CD pipelines using GitLab and observability using DataDog.
• Collaborated with Agile teams on enterprise mobile deployments and production support.
• Contributed to modular architecture and reusable component development.

Sr. iOS Application Developer at Omni Systems Pty. Ltd. (2012-07 – 2022-02)

• Designed and developed enterprise POS applications for retail and hospitality businesses on iPhone and iPad.
• Owned complete product life cycle including requirements, architecture, development, testing, and App Store maintenance.
• Developed cloud-based and offline POS applications with CoreData and synchronization workflows.
• Integrated payment gateways including PayPal Here, Square, PC-EFTPOS, Tyro, RazorPay, and Windcave.
• Built reusable iOS components using MVC and MVVM architectures.
• Actively involved in debugging, troubleshooting, and performance optimization.

Mobile Developer 1 at Castlerock Research Information Pvt. Ltd. (2009-09 – 2012-04)

• Developed educational iOS applications for iPhone and iPad platforms.
• Implemented offline content access, multimedia features, and local data storage solutions.
• Collaborated within SCRUM teams for feature development and testing.

Associate Software Engineer at Objectsol Technologies Pvt. Ltd. (2009-04 – 2009-08)

• Developed native iOS applications for client-based mobile projects.

PhD in Computer Science – University of Kalyani, West Bengal, India (2013 – 2019)

Master of Computer Application in MCA – University of Kalyani, West Bengal, India (2006 – 2009)