Senior Software Engineer @ • In charge of writing high-performance and reusable UI code for web based reporting system to enable users to make data-driven decisions. • Analyze data and present results in meaningful, insightful, and innovative ways. • Nominated as a key employee of Q2, 2014 From May 2014 to Present (1 year 4 months) San mateo, caSoftware Engineer / Energy Analyst @ • Developed a Python web application that calculates and visualizes projected energy savings of Millennial Net's energy management system. • Designed and implemented an efficient and reliable data pipeline that processes, transfers, and stores customer sensor data into Millennial Net’s database systems. Significantly optimized database performance using server profiling and physical database design. • Developed two ASP.NET web applications: - A dashboard that displays application-specific metrics (such as temperatures) real-time. - An internal tool for browsing and visualizing operational logs from sensor network. • Wrote a Python script that sends reporting emails summarizing sensor status, mesh network topology changes, and data traffic. • Architected and developed a C# Windows application that drives a performance benchmark of a wireless mesh network protocol in isolation, to compare a proprietary protocol against alternatives. • Maintained and improved a wireless mesh network stack written in C. From February 2009 to Present (6 years 7 months) Chelmsford, MAAnalytical Engineer @ • Design and develop reports to enable users to make real time decisions in the field and communicate with other departments to design new reports and improve older ones From January 2014 to May 2014 (5 months) San Francisco Bay AreaResearch Assistant @ • Developed a combustion simulation tool using C and Fortran. • Processed and analyzed a large amount of experimental data collected from engine sensors using SQL and Python. • Built simulation software to predict the fuel conversion efficiency for hybrid vehicles using Matlab, Simulink, and Visual Basic for Applications. From January 2005 to January 2009 (4 years 1 month) Cambridge, MA

Mechanical Engineer’s degree @ Massachusetts Institute of Technology From 2006 to 2009 M.S., Mechanical Engineering @ Massachusetts Institute of Technology From 2004 to 2006 B.S., Mechanical and Aerospace Engineering @ Seoul National University From 1999 to 2003 Tairin Hahn is skilled in: Energy Efficiency, Renewable Energy, Energy, Product Development, Sustainability, Engineering