Staff Human Resources Business Partner

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

Job Overview

Driven by our vision of the affordable, reliable, net-zero carbon grid of the future, Mainspring has developed a new category of power generation, the Linear Generator, delivering local, scalable, and fuel-flexible power to accelerate the transition to a net-zero carbon grid.

As a Staff Human Resources Business Partner, you will serve as a trusted advisor to business leaders, partnering closely with all levels including Directors, Senior Directors, and Vice Presidents to align people strategies with business priorities. You will help build high-performing organizations by providing expertise across talent management, employee relations, organizational effectiveness, workforce planning, leadership coaching, and change management.

This role is ideal for an experienced HR professional who enjoys both strategic partnership and hands-on execution. You'll thrive in a fast-paced, high-growth environment where no two days look the same, balancing business partnership with building scalable People programs that support Mainspring's continued growth.