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Staff Mechanical Engineer

SirenOpt

SirenOpt

Other Engineering
Oakland, CA, USA
USD 130k-165k / year
Posted on Aug 15, 2025

About SirenOpt

SirenOpt® provides metrology and manufacturing intelligence solutions that accelerate sustainable and smart manufacturing of advanced coatings, thin films and nano-scale materials, with demonstrated use cases across battery, semiconductor, aerospace, electronics and many other industries. Micro- or nano-scale materials enable many high-growth industries, including lithium, sodium and solid-state batteries, solar cells, carbon sequestration and conversion technologies, optical devices, quantum devices, displays, adhesives, medical implants, semiconductors, packaging materials, and many others.

SirenOpt is pioneering a paradigm shift in advanced materials characterization by leveraging cold atmospheric plasma, machine learning and predictive analytics to non-destructively create uniquely distinctive, multifaceted material fingerprints in real-time. SirenOpt transforms current measurement blind spots into rich multi-layered material insights, which enable intelligent performance-centric decision-making. SirenOpt thus accelerates R&D and process optimization, enhances product performance, and delivers higher production quality to maximize value in both standalone (benchtop) and integrated (in-line) applications.

Job Description

We are seeking a highly skilled Staff Mechanical Engineer to help us deliver a sensing and software platform that can be integrated inside high-volume thin film manufacturing lines. As an early-stage member of the SirenOpt team, you will be able to make a real impact on next-generation thin film technologies and help build a solid technical foundation upon which a small company can grow. The ideal candidate will learn new concepts quickly and take pride in the quality of their work. We expect that you will be able to apply sound engineering judgment to solve a wide range of technical challenges efficiently and creatively. Some of these problems may lie outside your core areas of expertise, so technical curiosity and a self-starting attitude are critical for success.

This role offers an exciting opportunity to be at the forefront of technological innovation, working with cutting-edge systems in a collaborative and dynamic environment. If you are a driven and skilled engineer looking to make a significant impact in advanced manufacturing and the green energy transition, we encourage you to apply.

In this role you will:

  • Lead the mechanical design and validation of a low-temperature plasma-based metrology sensor platform.
  • Interface with a small, cross-functional project team to research, develop, and validate new concepts for low-temperature plasma-based metrology
  • Perform fundamental studies to characterize and understand the sensitivity of the sensor and platform performance.
  • Closely interact with 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, 3D and 2D data, assembly documentation, test processes and test reports)

You have:

  • B.S./M.S. in Mechanical Engineering with minimum of 6 years of relevant industry experience.
  • Experience autonomously leading independent mechanical design projects, in particular those that involve designing a product that can be integrated into a larger system.
  • Experience with design of motion control mechanisms. Ability to properly constrain parts, define datums run through tolerance analysis. Use of GD&T to control those tolerances in drawings. Setting requirements and selection of motors, couplers, stages, gearboxes.
  • Programing of motion controllers is a plus.
  • Static and dynamic stress and strain analysis including vibration testing and analysis.
  • Some familiarity with part quality and measurement setup for CMM or OMM inspection.
  • Experience with hands-on development of prototypes.
  • Experience with initiating and maintaining supplier support.
  • Experience with maintaining awareness of customer needs and iterating on designs accordingly.
  • Experience with mechanical design for manufacturing lines – experience with roll-to-roll and/or sheet-to-sheet processes is a huge plus.
  • Familiarity with standards requirements for high-voltage/low-voltage or gas distribution devices is a plus.
  • Experience with performing sensitivity and risk analysis and using the results of those analyses to inform future mechanical designs e.g., quantifying a prototype’s sensitivity to certain environmental disturbances and creating a mechanical design that mitigates the effects of those disturbances
  • Prior exposure to high-precision, high-throughput industrial designs for material handling, metrology, and/or process automation applications are a plus.
  • Experience taking designs from initial concept development to product launch. Design for reliability, manufacturing, and service (DFx) are a plus.
  • Proficiency with use of CAD and PDM tools (e.g., SolidWorks or OnShape) to design parts and assemblies and prepare technical documentation.
  • Ability to independently identify and procure parts, manage supplier relationships, and rapidly fabricate medium-fidelity prototypes using 3D printers, metal stock, optical breadboards, etc. is preferred.
  • Demonstrated the ability to adapt to new technical challenges and excited to work in a dynamic multi-disciplinary environment
  • Excellent written, verbal and visual communication skills.
  • Ability to rapidly create and iterate upon prototypes based on client and team feedback
  • (Preferred) Experience with metrology equipment and sensors, particularly those used for metrology of advanced materials
  • (Preferred) Some familiarity with thin films, in particular any those related to Lithium- and Zinc-based battery electrodes, Thermal Barrier Coatings for turbine blades, photovoltaics, optical coatings, displays, packaging materials, semiconducting wafers, and/or adhesives.
Base Pay Range
$130,000$165,000 USD

Benefits

  • Health, Dental, Vision plans provided
  • 401k matching provided
  • Time off: 20 days of PTO per year, plus approximately 15 paid US holidays per year