About Me

Name: Timothy Yejong Hahn

Location: Philadelphia, PA


Drexel University, Philadelphia, PA

Bachelors of Science in Computer Science, June 2014


  • Hewlett-Packard - Wayne, PA

    Linux Developer, September 2011 to August 2013

    • Developed QT applications designed to be lightweight and bloatfree to replace basic operating system requirements (e.g. a text editor)
    • Debugged desktop and embedded applications for both the x86 and ARM architectures
    • Enhanced and added to existing Thin Client software
    • Tested various RDP, ICA, Citrix, and Xen connections
  • The Math Forum at Drexel - Philadelphia, PA

    Grails Developer, July 2011 to September 2011

    • Improved and aided development on an existing Grails project that organized events
    • Integrated current projects with LDAP
    • Aided coworkers working with JQuery Mobile
    • Built tools for the Math Forum using the Grails and Spring platforms
  • Drexel College of Medicine - Philadelphia, PA

    Web Developer, September 2010 to March 2011

    • Created new internal project management system in VB and ASP.NET
    • Served as a front line of support for students at the College of Medicine
    • Developed a face recognition software that reported data back to an Adobe Flash application using C and ActionScript 3.0
    • Designed new websites needed for classes and for different departments at the College of Medicine
    • Adapted existing web applications for mobile use (focusing on iOS, Android, and BlackBerry specifications)
  • Magview - Burtonsville, MD

    Desktop Development, June 2010 to September 2010

    • Migrated and rewrote mammography tools from VisualFoxPro to a .NET and TSQL standard
    • Reverse engineered existing solutions and built ActiveX controls to ensure software was viable for both older machines and newer machines
    • Created a new tool to help mammogram technicians and radiologists communicate results of a scan to the referring physician
    • Updated an internal communication web application using C# and ASP.NET
  • Goodwin College of Professional Studies - Philadelphia, PA

    Lab Assistant, December 2009 to May 2010

    • Organized and deployed hard drive images to classroom computers over the network
    • Maintained the network and servers (Windows Server 2003)
    • Cloned images and drives to provide students with optimal tools and settings, organized hardware, etc

Programming Languages

  • Professional Experience: C, C++, Java, Perl, bash, ASP.NET(VB and C#), Grails

  • High Familiarity: Python, Clojure, Ruby, JavaScript (Vanilla and jQuery), CSS