Bill Cole


As the founder of Gordian Energy Systems, Bill brings over a decade of industry experience and more than 20 years of commercial roofing and construction experience. Bill is a fervent entrepreneur with considerable business acumen and a desire for continuous improvement.  He has a commitment to learn new things and lead his team to find business success alongside their personal growth.

John Miller

General Manager

After graduating from Virginia Tech, John Miller spent 18 years as a commercial banker. Since leaving commercial banking he has had executive management roles, including COO and CFO with various privately held businesses. He has been integral in helping these companies scale, and also played a key role in the successful sale of two of the companies. John also has an MBA from Loyola University and has vast experience with operations, finance, business development and marketing.

Will Jawish

Vice President

A graduate of Johns Hopkins University, Will Jawish was our very first employee. As a young teen, he started his own landscaping business, which began his lifelong passion for business, finance and construction.

Early on, Will participated in every phase of the company’s development, including sales and design. Once the first solar roof jobs arrived, Will applied his passion for learning and problem solving. With over 10 years of solar project experience, Will leads a team of professionals that addresses the unique challenges of every solar roof, canopy or ground-mount project.

Andrew (AJ) Armstrong

Vice President

AJ Armstrong leads Goridan Energy Systems’ business development department. With over seven years of commercial solar sales experience, AJ assists clients in transforming aspirations for a renewable energy system to “green” reality. AJ provides our clients all the information they need to make an informed decision. He helps organizations save energy, lower operating costs and tell their “Green” story!

Malachi Velez

Director of Commissioning Services

Malachi Velez is a project manager and licensed electrician with over 15 years of commercial, industrial and solar installation experience. As an entrepreneur, Malachi brings a multi-dimensional understanding to projects, process and meeting customer expectations.

Malachi is proud to deliver solar projects with the highest industry standards and in keeping up with the latest industry innovations.

Mike Bufalini

Senior Project Manager

Mike Bufalini is a Sr. Project Manager at Gordian Energy Systems. A graduate of Penn State’s school of Energy Engineering, Mike has over five years of solar experience. His desire to learn and challenge himself has enable Mike to take on solar project challenges and accelerate his knowledge and experience. Every commercial solar is a new challenge. Mike is dedicated to creating innovative solutions.

Garrett G. Parks

Chief Financial Officer

A former Partner with Stegman & Company & Dixon Hughes Goodman, Garrett brings over 25 years of experience. He is an important part of the strategic planning for the enterprises and provides oversight of the finance, accounting, and human resource functions.

Garrett is alumni of Valparaiso University with a Bachelor of Science in Accounting and is a Certified Public Accountant. He brings a wealth of expertise from years of advising a wide variety of companies with their financial, operational and business development functions.

Mike Sheridan


Mike Sheridan brings thirty years of accounting and finance expertise to the Gordian Energy Systems team. A Baltimore native, Mike earned an undergraduate accounting degree and then an MBA in finance from Loyola College. Mike has developed experience with a variety of manufacturing and retail firms during his career. His broad experience benefits our team with both skills and perspective.

Joe Enoch

Director of Electrical Service

Growing up in his own multi-generational, family business and then working as a strategic management consultant, Joe has spent the last 25+ years working to help businesses scale with a focus on developing high performing service teams.

Joe is a Baltimore native and a graduate of Loyola University of Maryland with a Bachelor of Science in Mathematics. As a service leader, Joe is dedicated to offering the service and support programs our clients need while continuously growing and developing our service team to keep pace with the constantly evolving solar industry.