Metrology Application Engineer

About the job

Job Title: Metrology Applications Engineer

Location: On-Site (San Leandro, CA)

Job Type: Full-Time

Siren Opt 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.

Siren Opt is changing this by developing a manufacturing intelligence platform that non-destructively probes materials during production, revealing critical internal information without damaging them. Using a novel combination of cold atmospheric plasma, physics-informed machine learning, and predictive analytics, Siren Opt generates unique, real-time material fingerprints that capture material signals not accessible through conventional measurement techniques. 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. Siren Opt 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.

Siren Opt is seeking a Metrology Applications Engineer to join our Customer Solutions Engineering team. This role combines hands on technical work in Siren Opt’s labs and at customer sites with direct, face to face engagement with customer engineering and operations teams.

You will help to demonstrate and develop new capabilities and use cases for Siren Opt’s Plasma Sens metrology platforms. This includes working with customers understand, deploy, and extract value from Siren Opt’s metrology platforms by designing and executing demonstration studies, interpreting results, and translating insights into clear recommendations. We welcome driven materials characterization and metrology specialists who want to make a tangible impact on advanced manufacturing and the green energy transition, and we strongly encourage candidates from underrepresented groups to apply.

• Work directly with customers, prospects, and collaborators to understand material and product metrology requirements, then scope, plan, and execute appropriate demonstration studies and proof of concepts.
• Design, run, and analyze experiments in Siren Opt’s labs and at customer facilities, including test planning, data collection, and interpretation of metrology results.
• Present findings in a clear, structured way to customer engineers, managers, and executives, and collaborate on next step plans based on the results.
• Support installation, commissioning, and optimization of Plasma Sens systems at customer sites, including basic troubleshooting and performance verification.
• Provide structured feedback from field deployments and customer interactions to Siren Opt’s product and engineering teams, influencing roadmap and usability improvements.
• Explore and identify new applications, performance capabilities, and product features that expand the product and market opportunities for Siren Opt’s platform.
• Contribute to the development and continuous improvement of internal methodologies, calibration procedures, and best practices for metrology workflows.
• Create and maintain concise documentation (application notes, standard operating procedures, quick start guides, etc.) for customers and internal teams.

• A B.S. or M.S. in materials science, chemical engineering, chemistry, physics, or a closely related technical discipline; or a Ph.D. in a relevant field.
• For B.S./M.S. candidates: 1–2 years of industry experience in manufacturing, metrology, materials…