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Staff Sales Engineer , Grid Scale

Mainspringenergy · Menlo Park, CA

$170k – $200k / yr

Original employer posting ↗

About Mainspring
Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.
The core values that ground our work, guide our decisions, and connect us together:
Pragmatic Optimism
Excellence without Ego
Proactive Collaboration

The Staff Sales Engineer - Grid Scale reports to the Senior Sales Engineering Manager and serves as a senior technical contributor within the sales cycle for solution architecture, estimating, and system integration strategy on Mainspring's largest deployments: sites of 10 MW and above that either connect directly to the grid or serve large load sites such as data centers.
As a member of the Sales Engineering team (a subset of Project Delivery), this role exercises independent technical judgment to develop cost-optimized, execution-ready multi-MW plant solutions aligned with Mainspring's linear generator capabilities. The Staff Sales Engineer is accountable for architectural integrity, commercial rigor, and seamless transition from concept through execution, including a clean handoff of the design basis, estimate, and scope assumptions to Project Management and Project Engineering at contract award.

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