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HyperLight

Senior Product Engineer, Test & Measurement

Cambridge
Salary
$110,000 - $200,000 per year
Level
Senior
Work type
On-site · Cambridge

Not stated in the posting: visa.

Open. First seen 3 October 2026.

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About the role

HyperLight's standard text

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.

At HyperLight, our people are our greatest asset, and we manifest that by empowering our team in our interactions and business decisions. Our Packaged Modulator Business Unit is looking for a Product Engineer, Test & Measurement. This position offers a unique opportunity to lead the new product development of our integrated photonics platform.

This position will be responsible for developing next-gen high-speed high-performance TFLN products, driving the R&D to improve the product performance, working with customers and vendors to define the product and bring it to reality, and lead customer engagement and interactions.

Role responsibilities include:

· Conduct research and development of TFLN photonic devices, including modulators and other electro-optic components

· Develop and optimize test methodologies and characterization setups for high-speed photonic devices

· Design and execute experiments to evaluate optical, RF, and electro-optic performance of prototype devices

· Analyze device performance and identify opportunities for performance improvement and innovation

· Work closely with device design, fabrication, and test teams to iterate on new device concepts and prototype designs

· Analyze measurement and simulation data for performance and robustness.

· Work with vendors & contract manufacturers to evaluate advanced fiber components, high-speed RF components, and advanced packaging services

· Lead build, validation, and production test to ensure that products meet or exceed specs for performance and reliability

Requirements

This position requires:

· Ph.D.’s degree in a Photonics related field such as Physics, Optics, Engineering

· Experience with integrated photonics design and test, and radio frequency design and testing

· Experience with high-speed electro-optical modulator design and test

· Strong written & oral commination skills

· Ability to work under time constraints

· Desire to deliver innovative products to market

· Ability to solve problems in new and/or ambiguous scenarios

Authorization to work in the US is required. This position is in-person only.

Benefits

We provide:

· Market competitive compensation. (Salary range of $110,000 - $200,000 per year)

· Comprehensive Health Coverage: family and individual plans, vision, dental.

HyperLight's standard text

· 401(k) Retirement plans with employee matching.

· Life and disability insurance.

· Flexible hybrid or remote work and vacation policies.

· Commuter Benefits and Subsidy.

HyperLight's standard text

· Professional growth and mentorship opportunities.

HyperLight is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. HyperLight is committed to providing reasonable accommodations to individuals with disabilities during our hiring process. If you need assistance or an accommodation, please contact us at HR@hyperlightcorp.com.

What this role asks for

54% of this description is written for the role. The rest is HyperLight's standard text, folded away below.

Read against HyperLight's other open postings on this site.

The team: Engineering HIRES STEADILY

This role is one of 14 open in Engineering. 5 were posted in the last 30 days and the oldest in April: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (8 of 14), Test Automation (4 of 14), C (2 of 14), Embedded Systems (2 of 14)

OTHER ROLES ON THIS TEAM

From the team and dates on HyperLight's own job board.

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