Kael Jeong

- Designed a SoM carrier board for the i.MX8 using Altium, incorporating high-speed interfaces such as PCIe, RGMII Ethernet, and CAN. - Verified signal integrity and conducted communication tests for RGMII Ethernet to ensure stable data transfer in real-time systems. - Tuned Elmo motor drivers for DC/BLDC actuators, verifying joint responsiveness, stability, and torque control accuracy on surgical robotic arms - Assembled and validated subsystem and full-system electrical modules for next-gen surgical robot prototypes, working closely with cross-functional teams for system integration - Investigated and reproduced complex hardware bugs reported by HQ; authored detailed engineering analysis reports with root cause and corrective actions - Supported QNX BSP bring-up and low-level hardware interface debugging, enabling real-time embedded control platforms - Collected and analyzed motor current data via EtherCAT, and verified communication integrity to support system diagnostics and debugging. - Suggested hardware design improvements based on test data, bug reports, and field feedback; contributed to iterative design cycles and performance tuning - Provided technical support, maintenance, and documentation for both development prototypes and production units, to improve issue resolution and knowledge sharing

- Developed custom power delivery board for NVIDIA Jetson AGX Orin, managing high-current power stage design with LTM modules, inrush current control, and thermal optimization for AI computing platforms - Designed hardware for 4-axis DC motor control, power distribution, and I/O boards using Altium and KiCAD, with focus on noise isolation, current sensing, and thermal reliability - Performed thermal simulation and EMC validation using Ansys ICEpack and HFSS to assess heat dissipation and layout effectiveness for medical-grade systems - Developed embedded STM32 firmware for motion control, implementing basic motor logic, safety interlocks, and fault handling - Integrated wiring harnesses and electromechanical assemblies for medical-grade devices, ensuring modularity and serviceability - Tuned Elmo, A-M-C, and Maxon drivers; validated EtherCAT communication integrity using TwinCAT and LS MXP tools - Led PCB fabrication, bring-up, and internal testing across multiple board iterations, managing issue tracking and resolution - Contributed to IEC 60601-1 compliance by embedding safety-related constraints into schematics and layout - Implemented ISO 13485-aligned QMS practices, establishing traceability and documentation workflows for production readiness - Performed supplier quality engineering (SQE) tasks including IQC, failure analysis, and component issue documentation Managed component inventory, procurement planning, and cross-team collaboration to support production milestones

- Conducted field failure analysis and authored QA documentation to support yield improvement and provide structured feedback to R&D - Independently developed and enhanced functional test jigs for both board-level and system-level validation, reducing debug turnaround time - Performed first article inspections (FAI) and final outgoing quality checks on both new and legacy products - Participated in New Product Introduction (NPI) reviews, verifying test coverage, manufacturability, and design-for-testability (DFT) aspects Maintained internal network infrastructure and performed rapid IT recovery operations to minimize production downtime

- Designed and manufactured three high-fidelity audio products, including discrete headphone amplifiers and DACs built on premium components such as ESS ES9038PRO - Applied low-noise analog layout and ground isolation techniques in multilayer PCB design; later leveraged these skills in EMI mitigation for medical devices - Led full hardware product lifecycle: schematic capture, PCB layout, prototyping, tuning, small-batch production, and quality control - Built and maintained official website using HTML/CSS, and implemented e-commerce features for direct-to-customer sales - Engaged actively with online audiophile communities, collecting technical feedback and building brand presence through direct support and reviews - Managed all aspects of business operations: branding, SNS marketing, logistics, customer support, and finance

- Maintained and troubleshot electrical infrastructure across HQ and multiple production facilities, including power distribution panels and control circuits - Serviced and safety-inspected over 20 overhead cranes, ensuring compliance with operational safety protocols and preventing downtime - Participated in disassembly, inspection, and repair of high-power industrial equipment including plasma cutters and 1000HP compressors - Supported documentation and regulatory compliance for industrial electrical systems, including insulation resistance and load balance reports - Responded to emergency power distribution failures, executing rapid diagnostics and recovery in high-load environments

- Led audio engineering operations for live events and performances, ensuring consistent sound quality and minimal downtime under real-time constraints - Managed full-cycle sound system deployment, including equipment logistics, setup, sound checks, live mixing, and post-event teardown - Operated digital mixing consoles, wireless microphone systems, and monitor setups, adapting configurations to venue acoustics and event scale - Collaborated with event organizers and performers to translate technical requirements into reliable on-site audio solutions

- Assisted in installation of PA systems at concert venues, including speaker rigging, cabling, and signal routing - Performed acoustic measurements and EQ tuning using spectrum analyzers and real-time sound checks - Configured digital mixers and audio processors, gaining hands-on experience with system calibration and signal flow - Practiced speaker placement and audio zone design to optimize coverage and minimize feedback in live environments