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Eun JegalEJ
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Eun Jegal

@eunjegal

Senior Android Developer at Procore who shipped workflow integration and built Samsung Keyboard features for 100M+ users.

South Korea
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At Procore Technologies, I owned feature development on the Procore Android app, a construction project management platform, collaborating with iOS and backend engineers. I built and shipped the Observations tool’s workflow integration using an agentic development workflow, validating generated code through review and automated tests.

I also implemented an AI Assist chatbot proof of concept combining voice input through Google Speech Recognizer with Copilot. Earlier at Procore, I led an internal list screen builder on the design system, cutting boilerplate code by 50% while maintaining 80% test coverage.

At Samsung Electronics, I worked on Samsung Keyboard features for a global user base of 100M+, including One UI update support and app maintenance. I led the integration of on-keyboard Google Translate using RxJava and Retrofit; it ranked #1 in the convenience-feature category of the internal Galaxy S20 usability test.

I also shipped Emoji, GIF, and Kaomoji keyboards and built multi-form-factor interfaces for Galaxy Z Fold devices and tablets, with multilingual support including RTL. My background includes an MS in Human-Computer Interaction from the University of Maryland, College Park.

Experience

Work history, roles, and key accomplishments

Procore Technologies logoPT

Senior Android Engineer

Apr 2025 - Jun 2026 (1 year 2 months)

Owned feature development on the Procore Android app, collaborating with iOS and backend engineers. Built and shipped the Procore workflow integration in the Observations tool using an agentic development workflow with Claude Code, and implemented an AI Assist chatbot POC combining voice input with Copilot.

Procore Technologies logoPT

Android Engineer

Sep 2023 - Apr 2025 (1 year 7 months)

Designed and developed assignable QR code stickers, presented at Procore Groundbreak 2024, with 500+ customers applying for the beta. Led an internal list screen builder on the Procore design system, cutting boilerplate code by 50% while holding 80% test coverage, and delivered user-centered features with Jetpack Compose, MVVM, Flow, and Coroutines.

Samsung Electronics logoSE

Android Developer

Feb 2016 - Jun 2021 (5 years 4 months)

Scaled Samsung Keyboard features for a global user base of 100M+ in a cross-functional team, including One UI update support and app maintenance. Led the integration of on-keyboard Google Translate using RxJava and Retrofit within an MVVM architecture, and shipped Emoji, GIF, and Kaomoji keyboards using Android Custom Views and Material Design principles.

Education

Degrees, certifications, and relevant coursework

University of Maryland logoUM

University of Maryland

Master of Science, Human-Computer Interaction

Master of Science in Human-Computer Interaction from the University of Maryland, completed in May 2023.

Kyungpook National University logoKU

Kyungpook National University

Bachelor of Engineering, Electrical Engineering

Bachelor of Engineering in Electrical Engineering from Kyungpook National University.

Availability

Open to opportunities

Location

South Korea

Authorized to work in

Salary expectations

90k+ USD

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