Lightmatter
Embedded Software Engineer, Lasers
Boston, MA · Senior · Full-time
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~45% per draw at Level III). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
$22,198 more — $162,198 — moves this role to Level III and 3 lottery entries. That figure is inside the range the employer already advertised.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $162,198 would place this position at wage Level III. That figure is within the posted range, and I'd like to target it. This role classifies under "Software Developers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · Boston-Cambridge-Newton, MA-NH. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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from this employer's Department of Labor filings
Files H-1B transfers
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
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About the role
- Your work will be visible in every product we ship.
Responsibilities
- Implement and tune active laser control and stabilization algorithms on embedded targets, working from architecture and control approaches defined with the cross-functional design team.
- Own delivery of well-scoped firmware components for photonic transceiver diagnostics, telemetry, and monitoring
- Characterize and debug laser behavior using optical test and measurement equipment, and build the automated test and data collection scripts that make that work repeatable.
- Own delivery of well-scoped firmware components for photonic transceiver diagnostics, telemetry, and monitoring; from requirements through bring-up, test, and release.
Requirements
- BS and 5+ years of experience, MS and 3+ years of experience, or a PhD
- Degree in Computer Science, Electrical Engineering, Robotics, or a related technical field.
- Proficiency in C or C++, and comfort with Python for tooling, test, and analysis.
- Hands-on lab experience debugging embedded systems with GDB, JTAG, logic analyzers, or oscilloscopes.
- Working knowledge of Git, and experience with CMake or a comparable build system.
- equivalent practical experience also considered.
- Experience contributing embedded software to a product that shipped to customers, or to hardware that reached production or field deployment.
- Solid understanding of hardware-software integration, including common embedded peripherals and buses (I2C, SPI, UART, GPIO).
- Experience developing firmware in resource constrained environments
- experience in both bare-metal and RTOS systems preferred. FreeRTOS, Zephyr or other modern RTOS experience preferred.
- Demonstrated ability to take ownership of a defined problem, work through ambiguity, and deliver on commitments in a fast-moving environment.
Nice to have
- Coursework, research, or industry experience in closed-loop control: designing, simulating, or deploying control algorithms on real systems.
- Familiarity with CMIS, OpenBMC, DMTF/Redfish, or similar platform management environments.
- Exposure to optical communication systems, laser physics, or thermal and wavelength stabilization techniques.
- Familiarity with optical test and measurement, and with methodologies for characterizing optical components and systems.
- experience in both bare-metal and RTOS systems preferred.
- FreeRTOS, Zephyr or other modern RTOS experience preferred.
Compensation
- 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.
- $140,000 - $165,000 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
- Commuter Benefits
- Equity grants (applicable to full-time employees)
- 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.
- Flexible, hybrid workplace model
Company info
- 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!
Visa & Work Authorization
- Export Control
This listing is sourced directly from Lightmatter's careers page and normalized into a canonical job model.