Stephen (Jr) L.
Electronic Engineer
Experience
May 2023 - Present
2 years 7 monthsPhiladelphia, United States
Electronic Engineer
ZyntelliTech Development LLC
- Designed and debugged multilayer PCB systems with high-speed digital interfaces (Ethernet, USB, PCIe).
- Integrated RF circuits and performed antenna measurement and tuning (Wi-Fi/Bluetooth/Sub-1 GHz).
- Conducted signal integrity validation and EMI/EMC troubleshooting for certification readiness.
- Collaborated with cross-functional teams on embedded software and hardware co-design.
- Led product bring-up and system-level debugging with oscilloscopes, logic analyzers, and VNAs.
Apr 2020 - Apr 2023
3 years 1 monthSunnyvale, United States
Electronic Engineer
Voler Systems
- Developed analog and digital circuit designs for sensor and control applications.
- Analyzed signal integrity, noise characteristics, and power regulation circuits.
- Conducted validation testing on prototype boards, ensuring accuracy in component selection and PCB design.
- Worked closely with engineers to verify control loop behavior and improve power efficiency in embedded systems.
- Created design reviews and evaluation documents for complex electronic circuits.
Oct 2015 - Oct 2019
4 years 1 monthSingapore
Electronic Engineer
PIC-CONTROL Pte Ltd
- Designed circuit boards integrating sensors, displays, and communication interfaces.
- Implemented and validated analog front-end circuitry for industrial and consumer systems.
- Performed hardware bring-up, signal testing, and verification under various operating conditions.
- Prepared technical reports, schematics, and documentation used for compliance and manufacturing.
- Collaborated on projects involving AI-driven diagnostics and predictive maintenance systems.
Oct 2010 - Sep 2015
5 yearsHong Kong
Electronic Engineer
Promotive Industrial Co.,Ltd
- Designed and tested PCB circuits for electromechanical and control applications.
- Ensured compliance with UL, VDE, CSA, and RoHS safety and reliability standards.
- Conducted simulations, prototype testing, and circuit troubleshooting to improve efficiency.
- Coordinated with QA and production teams to resolve field issues and enhance reliability.
- Documented all testing and design changes to maintain ISO 9001:2015 compliance.
Summary
Experienced hardware and firmware engineer with 10+ years in the design and development of embedded systems, IoT devices, and industrial electronics. Proven expertise in multilayer PCB design, RF/antenna tuning, and high-speed digital interface development. Skilled in system bring-up, signal integrity optimization, and compliance preparation (FCC, CE). Adept in both schematic and firmware-level integration, bridging hardware and software disciplines for reliable, high-performance products.
Languages
Malay
NativeEnglish
AdvancedEducation
Sep 2008 - Aug 2010
Nanyang Technological University
Master of Science · Electrical and Electronic Engineering · Singapore · 4/5
Sep 2004 - Aug 2008
Nanyang Technological University
Bachelor of Engineering · Electrical and Electronics Engineering · Singapore · 4/5
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