Senior Firmware Engineer - Coherent Optical Transceivers

HyperLight; Singapore; On-site; SGD 80,000 - 110,000; Full time

Benefits offered by this job

Competitive market-based compensation

Professional growth and mentorship opportunities

Job summary

HyperLight in Singapore is seeking a Firmware Engineer to develop firmware for cutting-edge optical transceiver designs. This role involves collaborating with hardware and DSP teams to bring prototypes to production-ready systems. Candidates should have a strong background in embedded systems and a degree in Electrical or Computer Engineering, alongside experience with high-speed protocols. The company offers competitive compensation and opportunities for professional development.

Qualifications

• 5 to 10+ years of relevant firmware/optical transceiver experience.
• Strong experience in embedded firmware development (C/C++ and others).
• Hands-on experience with CMIS, I2C/I3C protocols.
• Experience with QSFP, OSFP, or similar form factors.
• Experience working with DSP-based systems.
• Solid understanding of high-speed communication systems (>400G+).
• Strong debugging skills in lab environments.

Responsibilities

• Own firmware for optical transceiver reference designs built around TFLN modulators.
• Design, develop, and maintain embedded firmware for both IMDD and coherent optical transceivers.
• Implement and optimize CMIS-compliant firmware stacks.
• Develop drivers and communication stacks for I2C and I3C interfaces.
• Support high-speed optical modules > 1.6T.
• Collaborate closely with hardware, optical, and system teams.

Skills

Embedded systems & low-level programming

High-speed interface protocols (I2C/I3C, CMIS)

Optical transceiver systems (QSFP/OSFP)

DSP integration

Debugging & system bring-up

Tooling / GUI development

Education

Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or related field

Tools

Python

Qt

Job description

HyperLight in Singapore is seeking a Firmware Engineer to develop firmware for cutting-edge optical transceiver designs. This role involves collaborating with hardware and DSP teams to bring prototypes to production-ready systems. Candidates should have a strong background in embedded systems and a degree in Electrical or Computer Engineering, alongside experience with high-speed protocols. The company offers competitive compensation and opportunities for professional development.