Senior Optical Transceiver R&D Engineer

HyperLight Corporation; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation and benefits

Mentorship opportunities

Job summary

HyperLight is seeking a hands-on Transceiver R&D Engineer in Singapore to own the design, characterization, and qualification of advanced optical transceiver reference designs. You’ll work across firmware, DSP, optics, and hardware to ensure QSFP/OSFP-based transceivers meet performance and interoperability requirements.

Responsibilities include test plan execution, module bring-up, and collaboration with firmware amid strict compliance testing; you will drive root‑cause analysis and

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field.
• 5 to 12+ years of relevant experience in high‑speed optical transceiver testing and/or design (>400 Gbps).
• Experience with Datacom and/or Telecom transceivers.
• Hands‑on experience with QSFP and OSFP form factors.
• Solid understanding of PAM4, TDECQ, BER, OSNR, jitter, eye diagrams, and receiver sensitivity.
• Proficiency with lab equipment — oscilloscope, DCA, BERT, OSA, VNA, etc.
• Strong debugging skills and a methodical approach to troubleshooting.
• Clear communicator, able to articulate issues and solutions across teams.

Responsibilities

• Define and execute test plans for optical transceivers (IMDD and/or coherent).
• Characterize transceiver performance for >1.6T modules — BER, eye diagrams, SNR, OSNR, TDECQ, OER, OMA, receiver sensitivity, latency, and more.
• Validate TFLN modulator-based transceivers across electrical, optical, and thermal domains.
• Bring up and debug QSFP/OSFP transceiver modules.
• Collaborate with firmware and DSP teams to tune system performance.
• Support compliance testing (IEEE, OIF, CMIS).
• Analyze failures, drive root‑cause resolution, and recommend design improvements.

Skills

PAM4 knowledge

BER/OSNR understanding

Eye diagrams

Oscilloscope use

Debugging

Cross-functional collaboration

Education

Bachelor’s or Master’s degree in Electrical Engineering, Physics

Tools

QSFP/OSFP hardware

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 Transceiver R&D Engineer to own the design, characterization, and qualification of advanced optical transceiver reference designs. You'll work across firmware, DSP, optics, and hardware to ensure our QSFP/OSFP-based transceivers meet performance and interoperability requirements.

As part of your responsibilities, you will be:

• Define and execute test plans for optical transceivers (IMDD and/or coherent)
• Characterize transceiver performance for >1.6T modules — BER, eye diagrams, SNR, OSNR, TDECQ, OER, OMA, receiver sensitivity, latency, and more
• Validate TFLN modulator-based transceivers across electrical, optical, and thermal domains
• Bring up and debug QSFP/OSFP transceiver modules
• Collaborate with firmware and DSP teams to tune system performance
• Support compliance testing (IEEE, OIF, CMIS)
• Analyze failures, drive root‑cause resolution, and recommend design improvements

Preferred Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field
• 5 to 12+ years of relevant experience in high‑speed optical transceiver testing and/or design (>400 Gbps)
• Experience with Datacom and/or Telecom transceivers
• Hands‑on experience with QSFP and OSFP form factors
• Solid understanding of PAM4, TDECQ, BER, OSNR, jitter, eye diagrams, and receiver sensitivity
• Proficiency with lab equipment — oscilloscope, DCA, BERT, OSA, VNA, etc.
• Strong debugging skills and a methodical approach to troubleshooting
• Clear communicator, able to articulate issues and solutions across teams
  

Key Skills

• Circuit design & characterization
• Signal integrity (electrical + optical)
• Debugging & product bring‑up
• Data analysis
• Cross‑functional collaboration

What Success Looks Like

• Transceivers brought up and validated to meet spec under real‑world conditions
• Issues identified and resolved early, with clear root‑cause analysis and improvement plans
• Customers empowered to optimize performance on our modules
• Measurable performance gains delivered for 1.6T+ systems

• Competitive market‑based compensation and benefits
• Professional growth and mentorship opportunities