Process
I applied through a recruiter.
My Lightmatter interview focused on photonics hardware validation, optical interconnects, lasers, fiber communication, polarization, BERT and oscilloscope measurements, Python automation, test setups, data collection, and large dataset analysis techniques, and the interviewer was very calm and composed.
Questions
Did you work on large datasets?
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Interview Statistics
The following metrics were computed from 1 interview experience for the Lightmatter Validation Engineer role.
Success Rate
0%
Pass Rate
Lightmatter's interview process for their Validation Engineer roles is extremely selective, failing the vast majority of engineers.
Experience Rating
Positive100%
Neutral0%
Negative0%
Candidates reported having very good feelings for Lightmatter's Validation Engineer interview process.
Lightmatter Work Experiences
5.0
Great company doing cool stuff
Software Engineer • Current Employee
March 28, 2022
Pros: This is a great company to work for.
Cons: There are none that I can list here.
2.0
Cannot recommend
Software Engineer • Former Employee
June 30, 2022
Pros: The technical staff are overall very competent and solid. (But I don't know whether this can be maintained in spite of turnover.)
Cons: Software leadership is incompetent and toxic, kissing up and kicking down. Leaders insist on making poor decisions, then pass blame when results are bad. Salary compensation is really low compared to what one can get elsewhere. To make up for this, offers are accompanied by manipulative "sales tactics" around the future value of one's equity.
5.0
Challenging work with a supportive team
Dv Engineer • Current Employee
Toronto, ON
June 9, 2026
Pros: It is a great team with challenging work.
Cons: Work can be challenging at times.
- 5.0Great company doing cool stuffSoftware Engineer • Current EmployeeMarch 28, 2022Pros: This is a great company to work for.Cons: There are none that I can list here.
- 2.0Cannot recommendSoftware Engineer • Former EmployeeJune 30, 2022Pros: The technical staff are overall very competent and solid. (But I don't know whether this can be maintained in spite of turnover.)Cons: Software leadership is incompetent and toxic, kissing up and kicking down. Leaders insist on making poor decisions, then pass blame when results are bad. Salary compensation is really low compared to what one can get elsewhere. To make up for this, offers are accompanied by manipulative "sales tactics" around the future value of one's equity.
- 5.0Challenging work with a supportive teamDv Engineer • Current EmployeeToronto, ONJune 9, 2026Pros: It is a great team with challenging work.Cons: Work can be challenging at times.
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