Jongho Lee

Software Engineer Intern/Part-time at ClearlyEnergy

Built virtual home auditing features in the Remotely iOS app with Swift, SwiftUI, Combine, and MVVM, enabling scalable, maintainable architecture. Improved AR measurement accuracy using ARKit and SceneKit for dimensioning tasks (height, area, volume). Implemented OCR with VisionKit to automate bill data extraction, reducing manual input. Collaborated on backend integration by developing RESTful APIs (Ruby on Rails, Redis, MongoDB) to support energy scoring and validation workflows.

iOS Engineer at Shinhan Bank

Led the rebuild of the SOL banking iOS app from an Objective-C hybrid to a fully native Swift platform, driving MAU growth from 7.8M to 9.4M (+20%). Implemented onboarding and authentication flows (sign-in, sign-up, FIDO, certificate) via RESTful APIs. Built a hybrid web interface using WKWebView in Swift with plugin-based bridging, resolving callback/state sync issues, and reducing user-reported hybrid webview errors by 15%. Refactored financial features (inquiry, transfer, product) into a modular Swift codebase using RIBs, Combine, and SnapKit. Introduced the Atomic Design pattern for UI components, improving reusability and design system consistency. Adopted Tu i s t to create and manage Xcode project files, reducing git conflicts and expediting build times. Developed log management modules with Google Analytics and Firebase to enhance monitoring and marketing insights. Integrated a mobile security SDK to safeguard against rooting, hacking, and forgery.

Software Engineer Intern at LG Electronics

Contributed to the design and implementation of RESTful APIs for hotel IoT data using Node.js, Express.js, and MongoDB, supporting category- and time-based data retrieval. Built a Python web app (Flask, MySQL, Matplotlib) to analyze hotel TV customer behavior, enabling data-driven insights.

Auxiliary Police at Republic of Korea Army

Served in auxiliary police unit, providing residential security for a former president and family, demonstrating discipline and teamwork under high-responsibility conditions.

Software Engineer Intern/Part-time at ClearlyEnergy

Built virtual home auditing features in the Remotely iOS app using Swift, SwiftUI, Combine, and MVVM; enhanced AR measurement accuracy with ARKit/SceneKit for dimensioning tasks; implemented OCR with VisionKit to automate bill data extraction; collaborated on backend integration by developing RESTful APIs (Ruby on Rails, Redis, MongoDB) to support energy scoring and validation workflows.

iOS Engineer at Shinhan Bank

Led the rebuild of the SOL banking iOS app from Objective-C hybrid to a native Swift platform, driving MAU growth from 7.8M to 9.4M (+20%); implemented onboarding and authentication flows via RESTful APIs; modularized UI with RIBs, Combine, and SnapKit; introduced Atomic Design; set up project scaffolding with Tuist; added log management with GA/Firebase and implemented a mobile security SDK to safeguard against rooting and forgery.

Software Engineer Intern at LG Electronics

Contributed to RESTful API design for hotel IoT data using Node.js, Express.js, and MongoDB; built a Python web app (Flask, MySQL, Matplotlib) to analyze hotel TV customer behavior.