Senior Technical Sales Engineer

San Leandro · Headquarters · USD 130,000-170,000 · Onsite · Posted Oct 7, 2026

At a glance

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 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, SirenOpt 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. 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.

SirenOpt is hiring a commercially minded Senior Technical Sales Engineer to grow adoption of products by turning technical capability into clear customer value.
The person in this role owns translation of technical capabilities, working with prospective customers to understand use cases, explain technology, shape deployment solutions, and carry opportunities to close.

Build and manage a pipeline for commercial deployments.
Identify, qualify, and close opportunities across relevant industrial, research, and operational customer segments.
Run discovery conversations that uncover technical requirements, buying context, timeline, and decision-makers.
Present SirenOpt’s products and capabilities in a concise, customer-relevant way.
Develop proposals, quotes, scopes of work, and deployment plans with internal technical teams.
Translate customer needs into clear technical requirements and ensure handoffs are accurate.
Lead product demonstrations, pilot discussions, and commercial negotiations.
Maintain disciplined opportunity notes, forecasts, and next steps in the CRM.
Bring market feedback into product, engineering, and leadership conversations.
Represent SirenOpt professionally at customer meetings, industry events, and partner conversations.

Experience selling technical products, equipment, software-enabled hardware, or engineering services.
Comfort engaging both technical users and commercial decision-makers.
A practical understanding of consultative sales: discovery, qualification, value articulation, proposal development, and closing.
Ability to grasp technical concepts quickly and explain them without unnecessary jargon.
Strong written communication, particularly for proposals and customer follow-up.
Self-directed, organized, and comfortable owning a deal cycle end to end.
Sound judgment around scope, feasibility, pricing, and customer expectations.
Willingness to travel occasionally for important customer meetings, demonstrations, or deployments.

Background in optical systems, sensors, scientific instrumentation, industrial technology, robotics, hardware, or related fields.
Experience selling benchtop instruments, pilot projects, proof-of-concept engagements, or custom deployments.
Existing relationships in SirenOpt’s target markets.
Experience working in an early-stage company or small technical team.