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Salary: CAD 122,000 - 171,000 / annual
Lightmatter is a venture-backed company leading the revolution in AI data center infrastructure. 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 for extreme-scale data centers supporting advanced AI and HPC workloads. Lightmatter raised $400 million in Series D at a $4.4 billion valuation.
The Product Engineering team builds 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). As a Hardware Test Automation Engineer at the Staff/Sr. Staff level, you will architect and lead test software infrastructure spanning multiple platforms, wafer test, hardware validation, and laser/optical test. You'll act as the bridge between bench engineers and the broader test software team, owning test software architecture decisions for product lines and mentoring other engineers.
Key responsibilities include:
- Learning the hardware deeply enough to make informed software architecture decisions
- Designing and building test software that automates device bring-up, characterization, and production test sequences across bench and ATE environments
- Developing and maintaining test methods, test flows, and instrument control code; code review is a daily part of the role
- Working directly with hardware and characterization engineers to translate device physics and test requirements into working, repeatable test software
- Building and maintaining data logging and results pipelines for accurate test data capture and downstream usability (metric computation, yield analysis, production handoff)
- Debugging test hardware/software integration issues across device, fixture, instrument, and test code
- Supporting test program releases to internal test cells and external test facilities
- Mentoring engineers and driving cross-functional technical decisions with hardware, characterization, and manufacturing teams
- Spending regular time in the lab working hands-on with hardware
You will work across 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, and data pipelines from lab equipment to structured results.
Requirements:
- 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
- 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
- Ability to articulate end-to-end how you 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)
- Experience with photonic test instrumentation
