Company Generac Power Systems

Name Senior Mechanical Engineer - Clean Energy

Req # 60206

Location South Portland CLEAN

Employment Type Full Time

Shift 1st

Join Generac Clean Energy as we drive to build energy solutions for a more resilient, sustainable world.
Generac Clean Energy combines the speed and excitement of a technology startup with the resources and market power of an S&P 500 industry leader.  Our careers offer boundless opportunity for energetic, mission-driven applicants who seek challenge and impact in a fast-paced culture of teaching, learning, and professional growth, developing solar+storage products and software for the clean energy revolution.  Clean has facilities in ME, MA, WI, OR, CA, and Vancouver, and flexible remote opportunities wherever possible. 

This opening is in our South Portland, ME location, ranked Top 10 in Places to Live by U.S. News.  Join a friendly community surrounded by rocky coast, sandy beaches, and rugged mountains, with outdoor fun (boating, skiing, hiking) and attractive small-city life (booming restaurant/craft beer scene, historic neighborhoods, thriving arts and culture).

Our Clean Energy Team seeks a Mechanical Engineer III to support design and manufacturing of industry-leading power converter products and solar energy storage and management solutions. The ideal candidate will have product development experience including prototype design and testing, part specification/design for high volume manufacturing processes, product assembly with contract manufacturers, supplier quality evaluation, and product lifecycle management. 

Essential Duties & Responsibilities:

  • Provide engineering capacity for fast-growing product line of solar energy management & storage solutions
  • Provide mentorship and guidance to junior engineers
  • Provide flexible, responsive engineering support for a dynamic global supply chain
  • Create and manage product designs, documentation, and lifecycle
  • Respond to supplier engineering/manufacturing questions and change requests
  • Build, test, and evaluate prototypes and first articles

Minimal Qualifications:

  • B.S. in Mechanical Engineering or other related Engineering degree
  • Minimum 5 years of related work experience
  • Strong understanding of engineering fundamentals in mechanics, heat transfer, and fluids
  • Experience creating and modifying complex 3D models and complete 2D drawing sets in Solidworks or Creo Parametric
  • Experience in design for rapid prototype and design for manufacturing

Preferred Qualifications:

  • Experience in thermal modeling and analysis
  • Experience in PCBA design integration with M-CAD
  • Experience in PDM or PLM tools such as Windchill or Arena
  • Experience supporting NRTL certification testing (e.g. UL, Intertek, TUV, etc.)
  • Experience with new product introductions and technical transfer to new suppliers
  • Experience with electronics manufacturing
  • Experience in design for Plastic Injection Molding, Die Casting, and Stamping.
  • Familiarity with DV-Test, M-Test, and failure/root cause analysis
  • Familiarity with electronics design

Knowledge and Skills:

  • This role requires a versatile and flexible individual as the job tasks may vary frequently depending upon organizational demand and resources. The successful candidate must work well with others in the engineering, manufacturing, and sales organizations. Must be able to manage shifting priorities in a dynamic and collaborative work environment.
  • Ability to individually contribute to and lead the mechanical design in an interdisciplinary product development effort – project scope, schedules, budget, design, coordination, testing and launch 
  • Deep familiarity and experience with design for volume manufacturing - practices and specific processes (e.g. castings, injection molding, extrusion)
  • Experience with domestic and global sourcing of electromechanical products for quality, scale, and cost reduction 
  • Experience managing engineering changes in a production environment
  • Experience evaluating corrective and preventative actions to address quality issues
  • Experience working directly with part/product suppliers on schedule, design for manufacturing, and quality
  • Proven self-starter: takes initiative and adapts to changes to bring projects to completion.
  • Positive attitude, high energy individual: identifies obstacles and tackles them to meet goals
  • Engineer at heart: uses intuition for engineering principles to identify issues and solutions.
  • Process orientation: follows a clear method, trains others, and continuously improves it.     
  • Team player: works closely with others to achieve shared goals.            
  • Passionate advocate for and knowledgeable about clean energy and new technology. A general passion and high-energy approach to work.          
  • Comfortable adapting to the dynamic needs and priorities of a fast-growing company.      
  • Ability to follow standard company process while operating autonomously
  • Excellent communication skills; comfortable speaking about complex issues over the phone, email, and in person.


  • Based in South Portland, ME
  • Travel up to 10 % as needed for partner support

Physical demands:

While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls.  The employee is regularly required to stand and walk.  On occasion the incumbent may be required to stoop, bend or reach above the shoulders.  The employee must occasionally lift up to 25 pounds. Specific conditions of this job include are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel, including internationally.

“We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.”

At Generac, Our People help make the world safer, brighter and more productive.  United by our Values, people with diverse backgrounds and points of view work together to ensure our global customers have peace of mind.     

We are a team of builders and doers who share a passion for innovation and a desire to outpace others.  As an inclusive workplace, we empower our employees to embrace diversity in all forms, celebrate our differences, and treat everyone with equity and respect.  At Generac, our success is powered by Our People.