About SirenOpt
At SirenOpt®, we are building the manufacturing intelligence layer for advanced materials. We help manufacturers visualize, understand, and control the material behavior that determines yield, performance, and safety across energy, aerospace, automotive, electronics, and semiconductor applications.
We are working on this problem because advanced materials are becoming more critical and more complex, but the tools used to manufacture them have not kept pace. Manufacturers still lack real-time visibility into the small variations that shape quality on the line. We care because those invisible variations cause scrap, waste energy and materials, create higher costs, inconsistent product performance, and introduce avoidable safety risks.
We developed PlasmaSens™, our manufacturing intelligence platform, to close that visibility gap and to lay the foundation for truly autonomous manufacturing.
We are uniquely suited to solve this problem because our expertise and our platform connect material science, plasma physics, machine learning, and manufacturing in one system. The same core technology works in-line, at-line, and off-line, and across form factors ranging from electrodes and wafers to 3D components. That flexibility lets us meet manufacturers where they are and carry insight from the lab into mass production.
We have deployed multiple PlasmaSens products with customers and collaborators across the United States, Japan, Germany, and Taiwan. We pair that real-world experience with support from leading US, European, and Japanese venture investors, the National Science Foundation, the California Energy Commission, and the Department of Energy. Our combination of differentiated technology, manufacturing experience, and global scientific and industry partnerships gives us the foundation to solve material variability at scale.
About the job
Job Title: Sr. Account Manager
Location: On-Site (San Leandro, CA)
Job Type: Full-Time
Role Overview
SirenOpt is seeking an experienced Account Manager who excels at managing customer relationships while leading projects from planning through execution. This role combines customer engagement, project coordination, and strategic account management to ensure successful delivery of customer initiatives.
The ideal candidate has strong project management experience, enjoys working with cross-functional teams, and can effectively communicate with both technical and business stakeholders.
Business proficiency in Japanese, Korean, or Mandarin Chinese is highly desirable to support our growing customer base throughout Asia.
What You'll Do
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Serve as the primary point of contact for assigned customer accounts and build trusted relationships with customer stakeholders.
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Lead customer implementation and delivery projects from kickoff through completion.
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Develop project plans, schedules, milestones, budgets, and risk mitigation strategies.
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Coordinate cross-functional teams including Product, Engineering, Data Science, Customer Support, and customer teams.
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Monitor project progress, manage risks, and communicate status to executive stakeholders.
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Manage change requests and ensure projects are delivered on time, within scope, and to customer expectations.
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Facilitate governance meetings, business reviews, and executive updates.
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Drive customer adoption and long-term success while identifying opportunities for future engagement.
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Gather customer feedback to influence product and service improvements.
What We're Looking For
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Bachelor's degree in Business, Engineering, Information Systems, Supply Chain, or a related field.
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7+ years of experience in Account Management, Project Management, Customer Delivery, Consulting, Enterprise Program Management, or a related customer-facing role.
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Proven experience leading complex customer-facing projects.
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Strong project planning, scheduling, stakeholder management, and organizational skills.
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Experience coordinating cross-functional teams and managing multiple priorities.
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Excellent written, verbal, presentation, and problem-solving skills.
Nice to have:
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Business-level proficiency in Japanese, Korean, or Mandarin Chinese, both spoken and written is highly preferred.
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Experience with battery, semi-conductors, aerospace/automotive industries
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Experience working with customers in Japan and/or South Korea.
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Experience with AI, analytics, optimization, or enterprise software implementations.
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Experience working with international customers and multicultural teams.
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Organizational Change Management
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