Senior Firmware R&D Engineer

HyperLight

Singapore

On-site

SGD 90,000 - 130,000

Full time

14 days+

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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 is at the forefront of the commercialization of thin-film lithium niobate (TFLN) integrated photonics - a material and process technology that is enabling high-performance, scalable optical components across AI/datacom infrastructure, hyperscale computing, quantum computing, sensing, and beyond. Founded in 2018 and backed by leading venture capital, we’ve built a team and a platform focused on real-world mass deployment of TFLN photonics technology.

At the core of our work is the TFLN Chiplet™ platform — a modular, integrated architecture designed for scalability, manufacturability, and seamless integration into complex systems. It offers a rare combination of extraordinary performance and industrial readiness, enabling system developers across applications to deploy the technology fast and ready. We partner with our customers and suppliers from conceptualization, design, and prototyping phases, all the way through mass production to ensure smooth and rapid deployment of TFLN photonic technology.

We believe our platform is the key, in the golden age of integrated photonics, to empower humanity to the next level. We assembled a world class team covering engineering, business, and operations. We believe in the power of integrity, innovation, collaboration, and pragmatic solutions. Our diverse team thrives on challenges and is united by a shared commitment to excellence. We take pride in tackling complex challenges with curiosity, humility, and a deep sense of care for one another.

Our growing team is looking for a hands‑on Firmware Engineer to develop and optimize firmware for cutting‑edge optical transceiver reference designs. You’ll work closely with hardware, DSP, and photonics teams to bring up and scale high‑performance systems from early prototypes to production‑ready.

As part of your responsibilities, you will be:

Own firmware for optical transceiver reference designs built around TFLN modulators
Design, develop, and maintain embedded firmware for both 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

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

Preferred Qualifications