- 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

- 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

Advantages

- Commuter benefit
- 401(K)

- Happy hour -Spend time together and build friendships

- Generous vacation policy and holidays

- Opportunity to learn from your peers and teach them what you know across electronics, photonics, machine learning, and more- 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

- Track record of owning test software architecture for a product line, including decisions on how the framework scales across projects and teams

- 8+ years of experience in hardware test software, ATE systems, or test architecture, ideally in semiconductor or photonics

- 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

- Bachelor’s degree in Computer Science, Electrical Engineering or related field

- 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

- 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

📌 Staff / Senior Staff HW Test Automation Engineer (Toronto)
🏢 lightmatter
📍 Toronto