Is it hard to get hired at Lightmatter?

Glassdoor users rated their interview experience at Lightmatter as 51.9% positive with a difficulty rating score of 3.15 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for DFT Engineer and Director rated their interviews as the hardest, whereas interviews for Layout Designer and Engineer roles were rated as the easiest.

How long does it take to get hired at Lightmatter?

The hiring process at Lightmatter takes an average of 42 days when considering 27 user submitted interviews across all job titles. To compare, the average duration of hiring at similar companies like BlackRock, Inc. is 14 days, Fabricated Software, Inc. is 2 days, and Apple Inc. is 21 days. Candidates applying for DFT Engineer had the quickest hiring process (on average 7 days), whereas Silicon Photonics Design Engineer roles had the slowest hiring process (on average 360 days).

Where can I find Lightmatter interview experiences by job title?

Software Engineer (3) ; Engineer (2) ; Senior Software Engineer (2)

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Lightmatter interview questions

based on 27 ratings - Updated May 30, 2026

Average interview difficulty

Mixed interview experience

How others got an interview

75%
Applied online
Applied online
15%
Recruiter
Recruiter
5%
Other
Other
5%
Employee Referral
Employee Referral

Interview search

27 interviews

Finance Business Partner Interview

Jun 18, 2024

Anonymous Interview Candidate

No offer

Negative experience

Average interview

Application

I applied online. The process took 3 weeks. I interviewed at Lightmatter (Mountain View, CA) in Jun 2024

Interview

Step 1: HR Screening (HR is fairly nice and transparent) Step 2: Hiring Manager Virtual Interview Step 3: On-Site Interview (Two 45-min rounds) Step 4: Virtual Interview (Two 45 min rounds) Week later, rejection over the phone. No feedback. In retrospect, if you feel you have a glaring weakness with them, consider not continuing interviewing with them. Like any other company who wants you to be psyched up before an offer, they will not hesitate to waste your time.

Interview questions [1]

Question 1

Q: What do you know about semiconductors?

Answer question

Layout Designer Interview

Apr 19, 2024

Anonymous Interview Candidate

No offer

Neutral experience

Average interview

Application

I interviewed at Lightmatter

Interview

Although it was smooth, they don’t intimate themselves if you are not selected.But you have to keep asking for it. Everything else was done and interviews were conducted nicely Polite interviews, smooth process, but radio silence if rejected

Interview questions [1]

Question 1

Explain LVS net listing. Explain previous job role and challenges

Answer question

DFT Engineer Interview

Feb 2, 2024

Anonymous Interview Candidate

No offer

Neutral experience

Difficult interview

Application

I applied online. The process took 1 week. I interviewed at Lightmatter (Boston, MA) in Jan 2024

Interview

First, I got a recruiter call for initial screening, then into the technical interview. Then I couldn't get into the second round. It was pretty straightforward. The company's idea was excellent.

Interview questions [1]

Question 1

DFT fundamentals and about your experience, your projects, and coursework.

Answer question

Viewing 11 - 15 of 27 Interviews

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Lightmatter interview questions

Average interview difficulty

Mixed interview experience

How others got an interview