SECTION I · THE BRIEF
Brief #92745Updated 28 MAY 2026SAN LEANDRO, CAGreenhouseSOFTWARE COMPANIES
Employbl Company Profile

Staff Electrical Engineer – High Voltage Systems

SirenOpt specializes in the development of sensors and software aimed at enhancing the research and development process, as well as facilitating the cost-effective manufacturing of thin films and high-performance micro-…

Location
San Leandro, CA
Company size
20–50
Posted
1mo ago
Via
Greenhouse
Section II · Premium ProfileMembers only
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

7-day free trial · $25/mo · cancel anytime

SirenOpt logo

Staff Electrical Engineer – High Voltage Systems - SirenOpt

View Company Profile
Job Title
Staff Electrical Engineer – High Voltage Systems
Job Location
San Leandro, California, United States
Job Description

About SirenOpt

SirenOpt helps manufacturers make better, safer, and more reliable micro- and nano-materials. These materials are the building blocks of critical sectors of the global economy such as batteries, computer chips, aircraft components, and power systems. But, surging material demand and growing complexity are pushing production to unprecedented scales and speeds, leaving manufacturers effectively flying blind. Small, undetected variations during production lead to wastage, lower performance, higher costs, and safety risks.

SirenOpt is changing this. Our manufacturing intelligence platform scans materials, revealing critical internal information without damaging them. Using a novel combination of cold atmospheric plasma, physics-informed machine learning, and predictive analytics, SirenOpt creates unique, real-time fingerprints that capture material signals no other method can access. These insights give manufacturers unprecedented visibility into how materials behave as they are made.

We turn hidden data into actionable intelligence to help manufacturers reduce variability and thus increase yield and performance. The technology can be deployed as a standalone tool or integrated directly into factory production lines. SirenOpt is currently deploying early versions of its platform with some of the largest industrial manufacturers in the world across North America, Europe, and Asia. Our first commercial product will be released in 2026.

Role Overview

SirenOpt is looking for a Staff Electrical Engineer – High Voltage Systems to help architect, design, and validate the high-voltage electrical systems behind our next-generation metrology platform.

This is a hands-on, high-impact role for someone who enjoys working close to the technology, solving hard problems quickly, and helping shape products in an early-stage startup environment.

This role is ideal for an engineer who is energized by deep tech, thrives in cross-functional environments, and is motivated by the opportunity to build something genuinely new.

You will work closely with a small, highly capable team to turn advanced plasma science into robust, manufacturable, field-ready systems.

What You’ll Do

  • Lead and contribute to the electrical design and validation of SirenOpt’s plasma-based metrology systems.
  • Design high-voltage and mixed-signal electronics from concept through schematic capture, layout guidance, bring-up, debug, testing, and integration.
  • Collaborate with mechanical, systems, software, algorithm, and project engineers to develop reliable and scalable products.
  • Research and evaluate new concepts, components, and architectures for advanced low-temperature plasma instrumentation.
  • Work closely with customers and internal stakeholders to refine designs based on real-world use, integration needs, and product feedback.
  • Create and maintain core technical documentation, including requirements, schematics, wiring diagrams, validation plans, and test reports.
  • Help translate frontier R&D into practical hardware that can perform in demanding industrial environments.

What We’re Looking For

  • B.S., M.S., or PhD in Electrical Engineering or a related field, with 5+ years of relevant industry experience.
  • Strong experience in high-voltage PCB design, ideally above 5 kV.
  • Hands-on experience across the full PCB development cycle, including concept, schematics, layout, manufacturing support, bring-up, testing, and HW/SW integration.
  • Experience with mixed-signal designs that combine analog, digital, and high-voltage circuitry.
  • Familiarity with DfX practices such as DFM and DFT, along with structured engineering review processes.
  • Ability to work effectively in a fast-moving, multidisciplinary environment with a high degree of ownership.
  • Strong communication skills and a practical, problem-solving mindset.

Nice to Have

  • Experience in electron optics, electron beam systems, plasma systems, or similar high-voltage applications.
  • Familiarity with CE, UL, or other regulatory compliance frameworks.
  • Experience with high-precision industrial systems used in metrology, automation, or advanced material processing.
  • Exposure to metrology sensors or instrumentation for advanced materials.

Why Join SirenOpt

  • Help define a new category in advanced materials metrology.
  • Work on genuinely novel deep-tech hardware with real scientific and industrial impact.
  • Join an early-stage team where your decisions directly shape the product, technology, and company.
  • Build systems at the intersection of plasma science, electronics, sensing, and AI-driven analytics.
  • Contribute to technology that can expand what researchers and industry teams are able to see, measure, and optimize.

Actual compensation within the pay range listed will be decided based on factors including skills and prior relevant experience.

Base Pay Range
$160,000$240,000 USD

Benefits

  • Equity and Salary compensation depends on experience 
  • Health, Dental, Vision plans provided
  • 401k matching provided
  • Time off: 20 days of PTO per year, plus approximately 15 paid US holidays per year

 

Get the Saturday tech briefing

New company profiles, funding moves, and who’s hiring across the market — every Saturday morning.

Where this role is based

San Leandro, CA

Loading map…

SirenOpt Headquarters Location

Oakland, CA

View company profile

SirenOpt Company Size

Between 20 - 50 employees

SirenOpt Founded Year

2022

SirenOpt Total Amount Raised

$18,500,000

SirenOpt Funding Rounds

View funding details
  • Series Unknown

    $6.5M

  • Series Unknown

    $6.5M

  • Grant

    $2.4M

  • Grant

    $2.4M

  • Seed

    $6.6M

  • Seed

    $6.6M

  • Pre Seed

    $200K

  • Pre Seed

    $3M

  • Pre Seed

    $3M

SirenOpt's Tech Stack