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Principal Product Line Manager, Optics/Photonics

Lightmatter

Mountain View, CA (Boston, MA, Mountain View, CA) Hybrid permanent

Posted: October 30, 2025

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Quick Summary

We are seeking a Principal Product Line Manager to lead the development of our photonics engine, Passage, and drive growth in our data center infrastructure.

Job Description

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.

Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

Lightmatter is (re)inventing the future of computing with light!

If you're a collaborative Product Management Leader who has a passion for innovation, solving challenging technical problems, and doing impactful work, consider joining the team at Lightmatter!

As a Principal Product Line Manager, Optics/Photonics, you will be responsible for leading our product definition, rollout, and product introduction to drive design wins with the industry's top semiconductor and cloud vendors for our photonics-enabled solutions. Reporting directly to the Director, Product Line Management, you will work with engineering, sales, operations, finance, and the executive team to accelerate the adoption of Lightmatter products in segment-defining categories.

Responsibilities

• Complete the detailed requirements definition (MRD/PRD), product line family/SKU strategy, and commercial market positioning for the company’s silicon photonics-based hardware offerings with a focus on Passage, Lightmatter’s programmable photonic chiplet interconnect. This also includes evaluation/development systems and other demonstration vehicles.

• Drive industry partner relationships and the availability of partner hardware solution offerings including lasers, fibers, connectors, and other related optical components.

• Manage the roll-out of the products to lead customers and product lifecycle management through the development process all the way to and through the production phases.

• Along with sales, pursue and win key customers by producing collaterals and articulating key advantages and value propositions of Lightmatter products through detailed customer proposals.

• Develop pricing guidelines, margin analysis, and forecasts establishing competitiveness and profitability of Lightmatter products in support of corporate financial goals and revenue planning.

• Represent Lightmatter at key industry forums and speaking events as a corporate leader and subject matter expert.

• Develop high-quality, high-value outbound marketing and product technical collaterals in conjunction with product marketing and technical documentation teams.

• Brief top industry press, analysts, and investors relative to Lightmatter product strategies, competitive advantages, and other industry trends.

Qualifications

• 12+years of related experience with 8+ years in product management, marketing, applications engineering, and business development roles driving high-complexity semiconductor products to volume production.

• Bachelor’s degree in Electrical Engineering or related engineering field.

• Previous experience driving products through the full development cycle from business case/definition through development, design-in, production, and EOL cycles.

• Experience with a wide range of products and technologies, deployed in datacenters. This includes management, provisioning operations and maintenance of optical elements.

• Strong end-to-end understanding of all key aspects of semiconductor chip development.

• Demonstrates strong data-driven decision-making skills by effectively collecting, analyzing, and interpreting large datasets.

• Must be a collaborative leader providing the understanding of key financial indicators for smarter business decisions.

• Must have detailed market and technical knowledge of silicon photonics and/or related optical technologies.

• Must have experience facilitating effective communication across functional teams, resulting in a reduction in project misalignments and accelerating delivery timeline.

Preferred Qualifications

• Advanced technical degrees related to optics/photonics technology are preferred given the high complexity of the technology.

• Self-starter who thrives in a fast-paced, dynamic environment with multiple competing priorities and who finds satisfaction in being accountable to accomplishing results quickly and accurately

• Willing and able to learn quickly. Self-starter with a “no task is too big or small” attitude

• Broad professional network across relevant industry segments.

We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.

Salary Range: total compensation goes beyond base salary, it also includes a new hire equity grant, annual performance-based equity, and other rewards that recognize your impact and contribution.
$200,000—$300,000 USD

Benefits

• Comprehensive Health Care Plan (Medical, Dental & Vision)

• Retirement Savings Matching Program

• Life Insurance (Basic, Voluntary & AD&D)

• Generous Time Off (Vacation, Sick & Public Holidays)

• Paid Family Leave

• Short Term & Long Term Disability

• Training & Development

• Commuter Benefits

• Flexible, hybrid workplace model

• Equity grants (applicable to full-time employees)

Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.

Export Control

Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.

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