Lightmatter

Principal Field Application Engineer

Lightmatter · Mountain View, CA

Posted about 2 months ago

or apply directly on Lightmatter's site. We never take the application ourselves.

Is this posting real?

This role has been open
72 days
Lightmatter's roles stay open a median of 82 days
Reposted
No
Salary listed
No
10% of Lightmatter's roles list one
Ghost-job risk at Lightmatter
high
63 stale, 0 reposted of 63 open
Hiring momentum
85 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-24

Measured from postings appearing on and disappearing from Lightmatter's own greenhouse board since 2026-08-03. Full hiring picture for Lightmatter.

About this role

The Principal Field Application Engineer will work closely with customers, particularly Tier 1 Semiconductor companies, to architect next-generation devices using Lightmatter’s photonic interconnect technology. Responsibilities include providing technical support for high-speed I/O designs, developing technical proposals, and training the FAE team on HSIO design. The role requires strong interpersonal skills and the ability to engage in deep technical discussions.

Our read on this posting2.8out of 5
benefits
5/5
freshness
1/5
career value
4/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Lightmatter as an employer.

What you need

  • BS or MS in Engineering, Mathematics, Physics, or Computer Science (or equivalent experience)
  • 10+ years of work related experience in a high-tech electronics industry with high-speed serial I/O design
  • In-depth knowledge of signal integrity and power integrity simulation
  • Familiarity with SI/PI EDA simulation tools and models, e.g., Keysight ADS
  • Customer facing skill-set and background
  • Strong analytical and problem-solving skills

Nice to have

  • Familiarity with digital signal processing theory and related tools, like Matlab Simulink
  • Experience in analog signal and mixed signal design, ADC, DAC design
  • Experience with C, C++ and other software
  • Experience in a customer facing role as a domain expert for silicon photonics/optics
  • Experience supporting customers deploying optics in a data center environment at scale

What you get

  • 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

Worth weighing

  • No specific salary details provided, only a range of $250,000 — $300,000 USD for on-target earnings
  • The role involves significant travel, which may impact work-life balance
  • The position requires strong customer-facing skills and technical expertise, which may be demanding

Summarised from Lightmatter's posting. Read the full original.

Listed by Lightmatter on their greenhouse job board, last confirmed open on 2026-10-24. PitchMeAI is not the employer.

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