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Hannel GwakHG
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Hannel Gwak

@hannelgwak

Software Engineer at VELLHealth building Angular mobile apps for iOS and Android and streamlining app releases with CI/CD.

South Korea
Message

At VELLHealth, I develop and maintain a cross-platform mobile application with Angular, TypeScript, Ionic, and Capacitor. I also redesigned and deployed a core section of the company website.

I manage the iOS and Android release lifecycle, including build automation, testing, and app store deployment. I built Jenkins CI/CD pipelines and integrated Ionic Appflow automation to streamline iOS deployment.

At CoStar Group (Homes.com), I developed web applications using Vue, TypeScript, C#, AWS, and MySQL. I developed a survey system and its C# and MySQL database design, and worked on email delivery notifications and deduplication.

At Bizurk Software, I led a team of four web developers and shipped three products built from scratch. I also solely developed the back end for Exchange, a cryptocurrency exchange application, using Node.js and AWS services.

Experience

Work history, roles, and key accomplishments

VE
Current

Software Engineer

VELLHealth

Mar 2025 - Present (1 year 8 months)

Developed and maintained a cross-platform mobile application using Angular, TypeScript, SCSS, Ionic, and Capacitor. Managed full release lifecycle for iOS and Android, built CI/CD pipelines in Jenkins, and collaborated with backend and design teams.

Education

Degrees, certifications, and relevant coursework

California State University Fullerton logoCF

California State University Fullerton

Bachelor of Arts, Criminal Justice

Bachelor of Arts in Criminal Justice from California State University Fullerton.

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