Product Engineer, Datacom

HyperLight is at the forefront in 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 Product Engineer to support and accelerate progress on our datacom products. This hands-on role, based at HyperLight's headquarters, collaborates very closely with our internal design, operations, production, and test teams to drive product development and ensure fast time-to-market. In the role of Product Engineer, you will be involved in all product-related discussions and decisions that have direct impact on HyperLight's business. As part of your responsibilities, you will:

• Define component performance requirements and drive component and product optimization in close collaboration with the Design team
• Drive EVT, DVT, and KGD test development in close collaboration with the Test team
• Perform system level modeling to ensure our products' compliance with customer expectations, and develop new product offerings in close collaboration with product line management
• Monitor and improve product yield in close collaboration with the Operations and Production teams
• Drive continuous improvement in datacom product development processes and documentation

• Graduate degree in Electrical Engineering, Applied Physics, Optics, Photonics or a related field, or 4+ years of relevant industry experience.
• Proven experience and deep technical knowledge in high-speed integrated photonics
• Familiarity with datacom IMDD solutions and relevant IEEE standards
• Experience developing optical test routines for transceiver products
• Familiarity with design for manufacturing (DFM), design for test (DFT) and FMEA processes
• Strong programming skills in Python
• Excellent organizational and communication skills
• Comfortable working with cross-disciplinary teams

This role is in-person at HyperLight's office in Cambridge, MA. Authorization to work in the US is required

• Competitive market-based compensation
• Comprehensive health coverage, including medical, vision, and dental plans for individuals and families
• 401(k) retirement plans with employee matching
• Paid Parental Leave
• Life and disability insurance
• Commuter benefits and subsidies
• Professional growth and mentorship opportunities