1. Responsible for developing BHEV Software. 2. Responsible for developing Diesel Tuner S/W. - 2024 GMC L5P Duramax Engine Control (MAP, FRP1/2 & MAF control) .- 2020~2023 GMC L5P Duramax Engine Control ( MAP, FRP1/2 & MAF signal control).- 2020 DODGE Ram Cummins 6.7L Engine Control ( MAP, FRP1/2 & MAF signal control).

Automotive BMS s/w development lead.- Responsible for developing BMS( TMS570L1227, ADBMS6830) s/w with ASPICE process.- Responsible for developing 720kwh LIB battery Pack for EV system.

BMS S/W development Lead.- Responsible for developing 800kwh LIB battery Pack for Hyperloop system.- Responsible for developing BMS( NXP AFE ,Daisy-Chain) s/w. - Responsible for developing model based SOC algorithm with EKF & SOH estimation algorithm.

Automotive BMS H/W & S/W development lead.- Responsible for developing 90Kwh LIB battery System ( BEV battery pack, 96S56P )- Responsible for developing BMS( NXP SPC5643 , LTC6811-1/Daisy-Chain) S/W- Responsible for developing SOC & SOH estimation algorithm.

Industrial BMS software development lead. - Responsible for developing 50Kwh LIB battery System ( Forklift battery pack, 14S32P ) - Responsible for developing BMS( CPU : STM32F446RE / MSP430F536, AFE : Ti76pl536A, Daisy-Chain, RTC, EEPROM) S/W. - Responsible for developing Model based SOC & SOH estimation using EKF algorithm.

ESS BMS development.- Lead BMS(battery management system) software development team for ESS.- Responsible for development of battery model based SOC / SOH calculation using EKF. - Responsible for development of "Advanced charging" algorithm which reduce charge time down to 12 min to SOC 80% , 14min to SOC 100%. - Responsible for development of critical real-time software for TRAY/RACK/SYSTEM/DATA BMS.- Designed and wrote all of the I2C , SPI communication driver for controlling up to 32 daisy-chain MAX17830/17841/17823. - Designed and wrote fuel gauge(SOC SOH calculation) software using 32-bit microcontroller STM32F105. - Designed and wrote all of the MODBUS TCPIP/RTU(485) communication driver by using 32 bit microcontroller PIC32MX795F( SYSTEM BMS) for interfacing with external systems such as PCS. - Designed and wrote bootload software for TRAY,RACK,SYSTEM BMS by using CAN, RS232, TCPIP communication and also encrypted communication protocol for protecting software from hacking during bootload process.- Designed and wrote software of BLACKBOX BMS by using 32 bit microcontroller PIC32MX795F. - Designed BMS benchtop testbox with hardware engineer to accerlerate the development cycle.- Designed functional tester to check and verify BMS, switchgear box in production line.- Delivered software on time with high quality to customers.

Software Engineer(Diesel Inline Tuner development)- responsible for the development of critical control software for diesel engine power improvement. - Designed and wrote engine control software for DODGE Cummins diesel engine by controlling high pressure common rail fuel systems, piezo fuel injectors, CRANK signal, CAM signal, EGR signal, BOOST and emission controls. - Designed and wrote control system software to add power without violating thermal, torque and emission limits.- Wrote communication software for OBD-ii, J1939, J1850, J1587, SCE, KWP2000 and other protocols.- Designed and wrote bootload software by using CAN for engine control unit and also encrypted communication protocol for protecting software copy from hacker during bootload process.- Designed benchtop testbox with hardware engineer to accerlerate the development cycle.- Designed functional tester to check and verify control unit in production line.

Battery management System / 6.6kw on board Charger / 20,40kw high power charger/ Hybrid control Unit for EV/HEV.- Responsible for the development of control system software for EV/HEV electronic component such as 6.6kw on board charger, BMS for panasonic NiMH battery/lead-acid battery,dc-dc controller, microturbine control for HEV truck, interface with POSI charger(sae j1772/3). - Responsible for design and development of hardware interface software, performance improvements and debuging difficult hw/sw interface problem.- Designed and wrote all of the CAN,SPI,I2C driver.- Designed and wrote bootload software for 16-bit infenion C167CR by using CAN and also redesigned existing bootload software protocols to cut download times by 80% from rs232 to CAN.- BMS S/W development for Panasonic 75ahr NiMH battery & Lead acid battery- BMS S/W development for Microturbine HEV, Battery EV & Genset HEV- BMS S/W development interface with High power charger(60kw posi charger). - HCU S/W development for controlling Capstone Microturbine control(60kw)- On board charger S/W development (6.6kw / 13kw). - DCDC controller(20kw) S/W development

EV / HEV BMS H/W & S/W Engineer- Designed and wrote BMS software and hardware for EV.- Designed and wrote 4-speed automatic transmission control software and hardware for ICE.