Full-Time

Staff Electrical Engineer

Posted on 9/5/2025

SirenOpt

SirenOpt

11-50 employees

Sensors and software for thin-film R&D

Compensation Overview

$135k - $165k/yr

San Leandro, CA, USA

In Person

Category
Electrical Engineering (2)
,
Requirements
  • B.S./M.S./PhD in Electrical Engineering or related field with 5+ years of electrical design experience
  • Vast experience with High Voltage PCB designs (above 5kv) from electron optic or electron beam companies
  • Experience with Full PCB design cycle, from concept, through schematics, layout Manufacturing, bring-up, testing and SW /HW integration
  • Experience with mix-signal PCB designs that include analog, digital and high voltage components
  • Experience with DfX processes, SRD, CDR, DDR, etc.
  • Experience working in multidiscipline environment, collaborating closely with Project, system, SW, Mechanic and Algo engineers
  • Demonstrated the ability to adapt to new technical challenges and exciting to work in a fast-paced, multi-disciplinary environment
  • Excellent written and verbal communication skills
Responsibilities
  • Heavily contributes to the electrical design and validation of the cold atmospheric plasma-based metrology system
  • Interface with a small, cross-functional project team to research, develop, and validate new concepts for low-temperature plasma-based metrology
  • Closely interact with both small and large clients to iterate on the design based on their feedback, paying close attention to integration speed
  • Create and maintain technical design documentation (e.g., requirements, wiring diagrams, schematics, and test reports)
Desired Qualifications
  • Experience with regulatory compliance (CE, UL, etc.)
  • Prior exposure to high-precision, high-throughput industrial designs for material handling, metrology, and/or process automation applications are a plus
  • Experience with metrology equipment and sensors, particularly those used for metrology of advanced materials
  • Experience in developing and optimizing prototypes and embedded PCBs, including FPGA design with VHDL/Verilog for signal/image processing in real-time data acquisition

SirenOpt creates sensors and software to speed up research and development and make manufacturing of high-performance thin films cheaper. Its hardware sensors collect real-time data on thin-film processes, while the accompanying software analyzes the data, runs models, and helps users optimize production. The company combines both hardware and software with consulting services to help clients integrate these tools into existing workflows. This blend of devices, analytics, and advisory support sets SirenOpt apart from others who may focus on just one part of the stack. The goal is to help customers in electronics, renewable energy, and advanced materials innovate quickly and produce high-quality thin films at lower costs, enabling scalable, efficient manufacturing.

Company Size

11-50

Company Stage

Early VC

Total Funding

$18.5M

Headquarters

Oakland, California

Founded

2022

Simplify Jobs

Simplify's Take

What believers are saying

  • $6.6M seed funding from Voyager Ventures accelerates PlasmaSens commercialization.
  • $2.4M California Energy Commission grant boosts battery manufacturing adoption.
  • Cold plasma sensors gain traction in roll-to-roll renewable energy production.

What critics are saying

  • KLA Corporation blocks adoptions with 40% metrology market share.
  • Suzhou PlasmaTech undercuts prices by 50% in Asia electronics chains.
  • PlasmaSens AI fails 80% pilots, burns cash in 18-24 months.

What makes SirenOpt unique

  • SirenOpt uses cold atmospheric plasma for non-destructive thin film inspection.
  • PlasmaSens integrates AI analytics for real-time manufacturing insights.
  • Targets battery electrodes and electronics with 2026 factory deployments.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Company Match

Paid Vacation

Paid Holidays

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

8%

2 year growth

11%
Tech Funding News
Oct 14th, 2025
SirenOpt raises $6.5M for PlasmaSens expansion

California startup SirenOpt has raised $6.5M in a funding round led by Hitachi Ventures and InMotion Ventures, with participation from Voyager Ventures and Visionaries Tomorrow. The funds will enhance the development of its AI-powered PlasmaSens platform for real-time, non-destructive manufacturing inspection. SirenOpt also received a $2.4M grant from the California Energy Commission to advance PlasmaSens for battery electrode manufacturing, with full deployments expected by 2026.

Manufacturing Tomorrow
Jul 23rd, 2024
SirenOpt Raises $6.6M in Seed Funding to Transform Materials Manufacturing Blind Spots into Real-Time Insights Using Cold Atmospheric Plasma

SirenOpt raises $6.6M in seed funding to transform materials manufacturing blind spots into real-time insights using cold atmospheric plasma.

VC News Daily
Jul 23rd, 2024
SirenOpt Secures $6.6M Seed Funding

SirenOpt, an advanced manufacturing intelligence company, has closed a $6.6 million seed funding round. The round was led by Voyager Ventures and TOMORROW (part of Visionaries Club), with participation from Climate Club, Union Labs, Berkeley Skydeck Fund, Wireframe Ventures, Impact Science Ventures, Access Industries, Courtyard Ventures, and Climate Capital. The funding will support SirenOpt's efforts in sustainable and smart manufacturing of advanced materials.

My Science Career
Jun 22nd, 2023
Cyclotron Road Announces 2023 Cohort of Entrepreneurial Fellows | myScience / news / science wire

Jared O’Leary, SirenOpt : SirenOpt is developing a real-time sensing and software platform that improves the manufacturing performance and yield of batteries, solar cells, and carbon conversion technologies.

INACTIVE