R Jegan

Results-driven iOS Developer with 3+ years of experience designing, building, and shipping scalable native applications using Swift, SwiftUI, Objective-C, UIKit, and MVVM/MVC architectures across fintech, healthcare, and enterprise domains. Proven track record maintaining 99% crash-free sessions, reducing app load times by 40%, and increasing user retention by 25% through performance optimization, RESTful API integration, and rigorous testing. Skilled in Core Data, Firebase (Crashlytics, FCM), Google Maps SDK, third-party SDK integration, and Agile development.

Strong analytical foundation from a Master's in Physics, applied to systematic problem-solving and data-driven engineering decisions. Actively seeking iOS Developer opportunities in Coimbatore, Chennai, or Bangalore.

iOS Developer at The Chennai Silks (2024-02 – Present)

• Designed, developed, and maintained financial and supply chain iOS applications, including the Sree Kumaran Thangamaligai iOS Chit App and Sree Thangam Jewellery iOS Chit App, supporting global users for gold loan schemes.
• Built and deployed the SCM Silk Portal app with QR code-based visitor management and order acknowledgment workflows.
• Enhanced the legacy SCM Silk Purchase application using Objective-C, enabling real-time order tracking and visitor pass management.
• Implemented Core Data for local persistence and offline data handling; integrated Google Maps SDK and Core Location for location-based features.
• Developed RESTful API and third-party SDK integrations; conducted A/B testing that increased user retention by 25%.
• Improved application performance, reducing load times by 40%, and increased user engagement by 30% through feature enhancements.
• Achieved 99% crash-free sessions via rigorous unit testing and debugging; streamlined the development lifecycle, cutting delivery timelines by 20%.
• Integrated CCAvenue payment gateway via WKWebView into the Sree Thangam Jewellery (TJ) and Sree Kumaran Thangamaligai (SKTM) Chit apps, enabling secure end-to-end payment processing.
• Built a comprehensive B2B e-commerce API integration covering authentication, registration, product browsing, cart, wishlist, address management, and checkout flows.
• Collaborated with cross-functional UI/UX and backend teams; awarded "Best Productivity Award" for performance and deadline adherence.

iOS Developer at Merlion Apps (2023-04 – 2023-12)

• Developed Dangal, a logistics and attendance platform, leveraging RESTful APIs for real-time data synchronization.
• Enhanced BuildSafe with cloud integration features, improving real-time reporting for on-site safety monitoring.
• Optimized JSON parsing and API integration for PflegeDigital, a caregiver support application.

iOS Developer at The Banyan InfoTech (2023-02 – 2023-04)

• Developed SecondOpinion, a telemedicine app, integrating Agora SDK for secure real-time video/audio consultations.
• Contributed to SIRC (Student/Member Portal), implementing efficient API consumption for a clean, intuitive UI.

iOS Application Development — Training at Greens Technology (2022-06 – 2022-12)

• Completed an intensive 6-month certification in iOS development, focusing on Swift, Xcode, and Apple's Human Interface Guidelines.
• Built a London Weather App (OpenWeather REST API, async data fetching), a Vehicle Forecast App (JSON POST parsing), a Shop Billing App, and a Calculator App.

Marketing Manager at Kavya Housing & Plots Pvt. Ltd. (2019 – 2022)

Led sales, lead generation, and CRM for residential/commercial property.

Lecturer, Physics at DMI – St. John the Baptist University, Malawi (2016 – 2019)

Taught physics curriculum and mentored undergraduate research.

Junior Assistant at Manappuram Finance Pvt. Ltd. (2015 – 2016)

Gold loan appraisal, disbursement, and portfolio management.

Process Associate at SourceHOV (2014 – 2014)

Insurance policy processing for the California (US) market.

Master of Science in Physics – Periyar University (2014)

Bachelor of Science in Physics – Periyar University (2012)