Product Engineering builds the software that brings up, characterizes, and qualifies Lightmatter's photonic chips on real hardware - from bench-top bring-up through production test on automated test equipment (ATE). You'll write the code that drives instruments, testers, wafer probers, and lab automation to bring a chip to life and prove it works. Test software infrastructure at Lightmatter spans multiple platforms, wafer test, hardware validation, and laser/optical test, and this role often acts as the bridge between engineers working at the bench and the broader test software team. As a Hardware Test Automation Engineer you'll have the opportunity to work across some combination of: an internal test software framework (Java/Python-based), industry-standard ATE test method and testflow development, wafer prober integration, instrument control (optical and electrical sources, meters, sensors), embedded/firmware interfaces on the hardware side, and data pipelines from lab equipment to structured results. **Responsibilities** - Learn the hardware you're automating well enough to make informed software decisions about it. - Design and build test software that automates device bring-up, characterization, and production test sequences across bench and ATE environments. - Develop and maintain test methods, test flows, and instrument control code depending on level and project while writing code and reviewing code are both daily parts of the role. - Work directly with hardware and characterization engineers to understand their needs and translate device physics and test requirements into working, repeatable test software. - Build and maintain data logging and results pipelines so test data is captured accurately and usable downstream (metric computation, yield analysis, production handoff). - Debug test hardware/software integration issues, working across the device under test, the fixture, the instrument, and the test code to find root cause. - Support test program releases to internal test cells and, at senior levels, to external test facilities. - Communicate daily with the team on progress and blockers, and spend regular time in the lab working hands-on with hardware. **Qualifications** - Bachelor's degree in Computer Science, Electrical Engineering or related field. - 8+ years of experience in hardware test software, ATE systems, or test architecture, ideally in semiconductor or photonics. - Track record of owning test software architecture for a product line, including decisions on how the framework scales across projects and teams. - Deep hands-on experience with ATE test method/test flow development and/or embedded test frameworks for hardware test automation, plus fluency with instrumentation automation (SCPI/VISA or equivalent) at a level where you can teach it to others. - History of mentoring engineers and driving cross-functional technical decisions with hardware, characterization, and manufacturing teams. - Can articulate, end to end, how they scoped, planned, implemented, and validated an automation project. - Comfortable working at the hardware/software boundary - reading and reasoning about embedded software (C/C++), controls, or firmware well enough to co-develop directly with the engineers who own it. **Preferred Qualifications** - Master's/PhD with 3+ years, of experience in hardware test software, ATE systems, or test architecture, ideally in semiconductor or photonics. - Experience integrating ATE with wafer-level hardware (probers, handlers) is a strong plus. - Experience with photonic test instrumentation 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. $167,000-$227,000 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)