Mechanical Engineer - Thermal / Fluids Hardware Design

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 Mainspring is seeking Mid-Level Mechanical Engineers with a focus on designing hardware that requires thermal and fluids analysis. In this role, you will design hardware for air and liquid handling systems. You will develop new concepts and manage existing concepts through development, deployment, and manufacturing. Mainspring is a great place for engineers with a variety of areas of deep expertise, who like to solve challenging cross-functional problems with a mix of computational analysis, hands-on engineering and team effort. Core responsibilities will include the following.

Responsibilities

• Develop and optimize key thermal subsystems of the Linear Generator to drive down cost, improve performance, and deliver high reliability
• Contribute to projects within the thermal subsystems and projects in other subsystems
• Work with reliability and test teams to validate systems and components with fast cycles of learning for deployment into the next generation of Linear Generators
• Participate in brainstorming activities to develop novel ways to improve all aspects of the Linear Generator
• Collaborate cross-functionally with manufacturing engineering, NPI, and external suppliers to rapidly deploy new designs into production

Qualifications

• BS Degree in Mechanical Engineering or a similar engineering field from an accredited institution + 3 years of relevant industry experience or MS + 2 years of relevant industry experience
• Direct experience designing air or liquid handling systems, with demonstrated engineering fundamentals in thermo-fluid system design
• Fluent in SolidWorks or comparable CAD package. Experience with using PLM (Product Lifecycle Management) or a similar CAD version control system is preferred
• Experience with finite element analysis (structural, thermal, or fluids)
• Familiarity with thermal systems design simulation tools
• Experience developing test plans, and analyzing data, for benchtop to product scale tests to validate new design concepts
• Experience working with suppliers to develop and qualify new components
• Experience with various manufacturing processes such as sheet metal forming, machining, and plastics molding and forming
• Demonstrated attention to detail with the ability to generate and review design documentation, bill of materials, work instructions and test plans and reports
• Experience utilizing GD&T is ideal
• Self-starter with a proven ability to deliver functional product designs in a rapid development environment
• Experience with a full design lifecycle from concept through manufacturing support is preferred
• Interest in developing creative and cost effective solutions to enable the deployment of zero carbon energy technology at large scale