Jaechul Kim
Carrollton
Summary
Systems/Software Engineer with hands-on Python, and C/C++ experience in nuclear power plant control systems. Built a real-time data logging/visualization app and a PCB stability test system end-to-end (hardware selection, wiring schematics, address mapping, composite logic, Python automation). Validated Commercial Grade Item Dedication (CGID) on QNX 6.3.2 library functions for nuclear plant use. U.S. Army veteran and training lead with proven team leadership and mission execution.
Overview
1
1
years of professional experience
Work History
Systems Engineer (Full-time)
HF Controls
05.2025 - Current
- Delivered software for field/system analysis on tight timelines; coordinated directly with customers on requirements and acceptance.
- Built Real-Time Data Logger (Python/Tkinter/Matplotlib) to acquire live controller data (via company DLLs), visualize signals, load/save CSVs, and replay with a sliding time window—letting operators spot issues without decoding raw binaries.
- Designed and implemented a PCB Board Stability Test System end-to-end: selected controller/comm boards; created wiring schematics; performed address mapping; implemented composite logic for fault detection; automated data collection/analysis in Python; and produced clear test reports.
- Performed CGID verification on a QNX 6.3.2 library: executed and documented function-by-function behavior using a C test harness, validating that approved calls perform as intended for nuclear power plant use.
R&D Intern
HF Controls
12.2024 - 05.2025
- Developed a document processing/search tool that reduced manual lookups and improved engineering team efficiency.
- Assisted in hardware testing & validation for PCB boards and controller cards; supported both software and bench testing (signal capture, DI/DO behavior checks, troubleshooting).
Soldier / Training Manager (Team Lead)
United States Army
03.2016 - 09.2020
- Led training and day-to-day supervision for a team of 12 mechanics; planned curricula, enforced standards, and ensured mission readiness.
- Coordinated the strategic relocation of the Camp Yongsan maintenance depot, managing transfer of 300+ vehicles and 200+ generators with a 100% inspection pass rate.
Education
B.S. - Computer Science
University of Texas at Dallas
05.2024
Skills
- Languages: Python, C/C, Java, Dart/Flutter
- Languages (human): English, Korean, Russian
CLEARANCE & AWARDS
DoD Secret Security Clearance: Granted Sep 2019., Awards: Army Commendation Medal; Army Achievement Medal
CORE KEYWORDS
- Systems Engineering: QNX Neutrino 6.3.2
- Python
- C/C++
- Test Automation
- Hardware/Software Integration
- PCB Test
- Data Acquisition
- DI/DO
- Verification & Validation
- CGID
- Nuclear/Industrial Controls
- Troubleshooting
- Documentation
Languages
English
Native or Bilingual
Korean
Native or Bilingual
Russian
Limited Working
Timeline
Systems Engineer (Full-time)
HF Controls
05.2025 - Current
R&D Intern
HF Controls
12.2024 - 05.2025
Soldier / Training Manager (Team Lead)
United States Army
03.2016 - 09.2020
B.S. - Computer Science
University of Texas at Dallas