Hyogi Sim

Hyogi Sim: Email & Phone Number

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Senior Lead Software Engineer at DDN|Oak Ridge, Tennessee, United States

Position:

Senior Lead Software Engineer at DDN

Location:

Oak Ridge, Tennessee, United States

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Last updated: 2026-04-23
Updated: 2026-04-23

Found email addresses for Hyogi Sim:

Business emails:
Personal emails:
s***@gmail.com,
h***@hotmail.com

Found phones for Hyogi Sim:

+1-480-***-**60,
+1-623-***-**31,
+1-323-***-**97
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Work Experience 15 years

Senior Lead Software Engineer at DDN

Jan 2024 - Current

Principal Researcher at Huawei

May 2023 - Dec 2023

Principal Systems Performance Engineer at Micron Technology

Aug 2022 - May 2023

Senior Software Engineer at DDN

Jul 2021 - Aug 2022

HPC Systems Engineer at Oak Ridge National Laboratory

Feb 2017 - Apr 2021

Post Masters Research Assistant at Oak Ridge National Laboratory

Mar 2015 - Jan 2017

Graduate Research Assistant at Virginia Tech

Sep 2013 - Feb 2015

Internship at Oak Ridge National Laboratory

Jan 2013 - Aug 2013

Senior Software Engineer at Pitapat Mobile

Jan 2011 - Jun 2011

Hyogi Sim started working in 2011, then the employee has changed 5 companies and 7 jobs. On average, Hyogi Sim works for one company for 1 year 6 months.

Their professional focus is C, C (Programming Language), and C++ across 3 core areas.

Education

Doctor of Philosophy - PhD at Virginia Tech

Master's degree at Virginia Polytechnic Institute and State University

Master's degree at Hanyang University

Bachelor's degree at Hanyang University

Frequently Asked Questions

What is Hyogi Sim's email address?

SignalHire found verified email addresses for Hyogi Sim, both business and personal. Their business email is s**@ddn.com, and personal emails include s***@huawei.com, s***@gmail.com, and h***@hotmail.com.

What is Hyogi Sim's phone number?

SignalHire found multiple verified phone numbers for Hyogi Sim: +1-909-***-**58, +1-480-***-**60, and +1-623-***-**31.

How do I contact Hyogi Sim at DDN?

You can reach Hyogi Sim through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Hyogi Sim's professional background?

Hyogi Sim has 15 years of professional experience. They have held roles including Principal Researcher, Principal Systems Performance Engineer, and Senior Software Engineer at companies such as Huawei, Micron Technology, and DDN. Their education includes Doctor of Philosophy - PhD from Virginia Tech, and Master's degree from Virginia Polytechnic Institute and State University.

Is Hyogi Sim's contact information up to date?

Yes. Hyogi Sim's SignalHire profile was last updated on 23 April 2026, reflecting their current position as Senior Lead Software Engineer at DDN in Chatsworth, CA, United States.

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