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[Remote] Senior Sales Engineer

Work from home Full-time role Hiring

Note: The job is a remote job and is open to candidates in USA. Mainspring Energy is revolutionizing power generation with innovative technology. The Senior Sales Engineer will serve as a senior technical contributor within the sales cycle, responsible for developing cost-optimized solutions and ensuring architectural integrity throughout the project lifecycle.

Responsibilities

  • Develop system architecture, preliminary designs, and cost estimates from concept through execution handoff
  • Articulate and support sound technical approaches, ensuring appropriate design integration and tradeoff evaluation
  • Produce complete, accurate, and timely proposal packages across multiple concurrent projects
  • Build well-supported cost estimates, proactively communicate risks, and incorporate market inputs into pricing assumptions
  • Support customer meetings, site walks, and solution presentations as the technical subject matter expert
  • Communicate technical concepts in clear, structured, and solution-oriented formats across customer and internal stakeholders
  • Collaborate with Engineering, Product, Controls, Commissioning, and Project Management to support technical feasibility and execution alignment
  • Contribute to peer design reviews to share technical perspective and strengthen overall solution quality

Skills

  • Bachelor's degree in Electrical/ Mechanical/ Systems/ Energy Engineering
  • 7+ years of experience in sales engineering, applications engineering, front-end engineering development (FEED) or cost estimating within electrical power systems or related industries
  • Familiarity with electrical power systems, three phase inverters, protection relays, and the physics of grid integration
  • Strong understanding of standard electrical drawings such as wiring diagrams, electrical schematics, and one-lines
  • Ownership Mentality: Proactive in identifying risks and comfortable advocating for the resources needed to solve them
  • Ability to travel nationally (~25%)
  • Experience in distributed energy, solar, batteries, fuel cells, microgrids, or related technologies

Company Overview

  • Mainspring Energy provides power generation technology using linear generators for clean energy. It was founded in 2010, and is headquartered in Menlo Park, California, USA, with a workforce of 201-500 employees. Its website is https://mainspringenergy.com.
  • Company H1B Sponsorship

  • Mainspring Energy has a track record of offering H1B sponsorships, with 1 in 2026, 40 in 2025, 23 in 2024, 13 in 2023, 12 in 2022, 6 in 2021. Please note that this does not guarantee sponsorship for this specific role.
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