Silicon Test Engineer - San Jose, United States
Originally posted 5 August 2026 by the employer.
About the role
As a Silicon Test Engineer, you will be responsible for developing and executing test solutions for Lumilens’ silicon photonics and semiconductor products, working across characterization, wafer sort, and final test to ensure robust coverage, high product quality, and efficient manufacturing at scale.
What you'll do
- Develop and implement silicon test solutions from characterization through wafer sort and final test
- Create and maintain ATE test programs on platforms such as Advantest 93K and/or Teradyne
- Optimize test flows to improve coverage, reduce test time, and lower cost of test
- Debug test failures and identify root causes across product, test, and process
- Partner closely with design, product, and process engineering teams to ensure testability is built in early
- Contribute to development of high-speed test hardware and interfaces for photonics devices
What you'll need
- 8–12+ years of experience in semiconductor or silicon photonics test engineering
- Strong experience with ATE platforms such as Advantest 93K and/or Teradyne
- Background in silicon validation, production test, DFT/DFM, and high-speed or mixed-signal testing
- Experience optimizing test time, coverage, yield, and cost in a manufacturing environment
- Proficiency in scripting/programming (C/C++, Python, or similar) and Linux-based environments
This role has been open 73 days — well above the 30-day median for Silicon Test Engineering roles.
Silicon Test Engineering · DFT Test
|
Open roles in category
551
|
Median days open
30 d
|
Median salary
$173k
|
See the full market breakdown ▾Category comparison, and who else is hiring
| Metric | Lumilens | All employers we track in this specialty (551 roles · 78 employers) |
|---|---|---|
| Open roles in this specialty | 12 | 551 |
| Open roles in the wider Silicon Validation & Test family | 15 | 2219 · 113 employers |
| Median days open | 73 d | 30 d (+43 d vs this employer) |
| Median salary (USD postings) | — | $173k |
Who's hiring in this category
- Teradyne · 75 open roles · median 24 d
- Renesas Electronics · 43 open roles · median 24 d
- Infineon Technologies · 41 open roles · median 40 d
- Micron Technology · 29 open roles · median 34 d
- Qualcomm · 28 open roles · median 30 d
- Texas Instruments · 23 open roles · median 25 d
How we counted: 551 open Silicon Test Engineering (DFT Test) roles from 78 employers tracked in the SemiconductorJobs index, counted 18 Oct 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there — it is counted in the wider Silicon Validation & Test family row. Figures refresh nightly.