Senior Firmware Engineer — Photonics Transceivers

HyperLight; Singapore; On-site; SGD 90,000 - 130,000; Full time

Benefits offered by this job

Competitive compensation

Mentorship opportunities

Job summary

HyperLight in Singapore is seeking a hands‑on Firmware Engineer to develop and optimize firmware for cutting‑edge optical transceiver reference designs. You will work closely with hardware, DSP, and photonics teams to bring up and scale high‑performance systems from prototypes to production.

The role requires 5–10+ years in firmware/optical transceivers, strong C/C++, CMIS/I2C/I3C experience, and familiarity with QSFP/OSFP interfaces, DSP‑based systems, and high‑speed (>400G) communications.

Qualifications

• Bachelor’s or Master’s degree in Electrical/Computer Engineering or a related field.
• 5–10+ years of firmware/optical transceiver experience.
• Strong experience in embedded firmware development (C/C++).
• Hands-on CMIS, I2C and I3C protocols.
• Experience with QSFP/OSFP or similar form factors.
• Experience working with DSP‑based systems.
• Solid understanding of high‑speed communication systems (>400G).
• Excellent lab debugging skills.

Responsibilities

• Own firmware for optical transceiver reference designs built around TFLN modulators
• Design, develop, and maintain embedded firmware for IMDD and coherent optical transceivers (QSFP, OSFP, etc.)
• Implement and optimize CMIS‑compliant firmware stacks
• Develop drivers and communication stacks for I2C and I3C interfaces
• Interface with DSPs for signal processing, control, tuning and monitoring
• Support high‑speed optical modules > 1.6T
• Bring up hardware and debug issues
• Collaborate closely with hardware, optical, and system teams
• Develop internal tools (CLI/GUI) for diagnostics and configuration
• Ensure firmware reliability, performance, and standards compliance
• Contribute to system architecture and next‑gen platform development

Skills

Embedded systems & low‑level

High‑speed interface protocols

Optical transceiver systems

DSP integration

Debugging & system bring‑up

Tooling / GUI development

Education

Bachelor’s or Master’s degree in Electrical/Computer Engineering

Tools

CMIS

I2C

I3C

QSFP

OSFP

Job description

HyperLight in Singapore is seeking a hands‑on Firmware Engineer to develop and optimize firmware for cutting‑edge optical transceiver reference designs. You will work closely with hardware, DSP, and photonics teams to bring up and scale high‑performance systems from prototypes to production.

The role requires 5–10+ years in firmware/optical transceivers, strong C/C++, CMIS/I2C/I3C experience, and familiarity with QSFP/OSFP interfaces, DSP‑based systems, and high‑speed (>400G) communications.