Hardware Engineer (Optical Communication Systems) (Fresh Grad Welcome)

Job responsibilities

• Responsible for full-cycle hardware development for optical communication systems, including schematic design, component selection, BOM management, and PCB layout review.

• Perform hardware bring-up and debugging of optical modules and boards, focusing on signal integrity (SI) and power integrity (PI).

• Use lab instruments such as oscilloscopes, BERT, load boards, and optical power meters to validate high-speed interfaces (SerDes, 10G/25G/100G+).

• Support bring-up of evaluation boards (EVB) and validation platforms including power, thermal, and functional testing.

• Collaborate with DSP, system, and validation teams for link bring-up and performance tuning.

• Generate debug reports, test data, and ensure proper documentation for production readiness.

• Support manufacturing and FAE teams to resolve hardware issues and ensure product quality.

Job requirements

• Bachelor’s degree or above in Electrical Engineering, Electronics, Communications, Photonics or related fields.

• 3+ years of experience in hardware development (strong fresh graduates may be considered).

• Strong foundation in analog and digital electronics.

• Familiar with power design, clocking, high-speed signaling, impedance matching and differential design.

• Proficient with EDA tools such as Cadence, Altium or PADS.

• Hands-on lab experience with oscilloscope, power supply, electronic load, and multimeter.

• Understanding of interfaces such as SerDes, I2C, SPI, MDIO, SFP/QSFP.

• Basic knowledge of optical communication systems or strong willingness to learn.

• Hands-on skills for soldering and hardware rework.

Nice to Have

• Experience in optical modules, HPC systems, or evaluation boards.

• Knowledge of SI/PI, EMC, thermal design, or high-speed board debugging.

• Experience with eye diagram or BER testing.

• Python or scripting skills for automation.

• Understanding of PAM4, NRZ modulation.