Power plant Jobs in Lynn, MA

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!

About this Role

Lightmatter is looking for a Power Integrity engineer to drive the next generation products from concept to development. As part of a cross-functional systems and packaging team-including silicon, package, and systems engineers-you will drive the definition, optimization, and completion of package and system architecture to meet the product's power integrity requirements. This role presents a unique opportunity to innovate new package and system architectures, solving complex interaction across digital, analog, and photonics domains while achieving stringent signal and power integrity goals.

Responsibilities :

• Support the design and analysis of Power Delivery Networks (PDNs) for digital and analog SoC domains, including path from voltage regulators to on-chip decoupling capacitors.
• Assist in modeling regulator characteristics such as switching ripple and transient response to aid in component selection (controllers, passives, etc.).
• Use commercial simulation tools (e.g., 2.5D EM solvers) to extract PCB and package impedance profiles and help generate N-port models.
• Perform basic time-domain and frequency-domain simulations to evaluate supply rail behavior and identify potential issues such as voltage droop or overshoot.
• Conduct lab measurements to validate power integrity design, including use of programmable loads and oscilloscopes to capture transient response.
• Work closely with hardware designers, layout engineers, and system integrators to implement PDN design improvements and validate results.
• Participate in design reviews and contribute to documentation of analysis results, test procedures, and design recommendations.
• Help monitor and review PDN constraints during layout and provide feedback based on simulation or measurement data.
• Support senior engineers in system-level tradeoff studies and architectural evaluations related to power integrity.

Qualifications :

Preferred Qualifications :

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

Salary Range

145,000-$212,000 USD

Benefits

Benefits eligibility may vary depending on your employment status. 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.