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Wayne Pfisterer
President & CEO
Wayne founded Pfister Energy in 2005 with a focus on helping businesses control rising energy costs and build more resilient operations through integrated, onsite energy systems. As President and CEO, he has led the delivery of more than 900 MW of projects spanning solar, storage, and related technologies. His approach centers on practical, results-driven solutions and a developer-plus-EPC model that gives clients one accountable partner from concept through performance.
Doug Bagwill
Chief Operating Officer
Doug leads company-wide operations and project execution across commercial and industrial energy projects. Since 2001, Doug has worked across all departments at Pfister, developing a deep understanding of every phase of project delivery.His expertise includes project structuring, financial modeling, and energy financing, and he plays a central role in scaling the company while maintaining the quality, consistency, and accountability for which Pfister is known.
Sean Quin
Chief Strategy Officer
Sean leads corporate strategy and growth at Pfister Energy, overseeing sales operations, project development, project finance, contracting, and M&A.Since joining in 2018, he has helped scale the company’s expansion into new markets, led strategic acquisitions, and developed new energy solutions for commercial and industrial clients. He focuses on aligning financial strategy and project execution to deliver long-term value for customers.
Andrew Riebel
VP of Development
Andrew leads battery energy storage growth at Pfister Energy, advancing the company’s integrated approach to energy solutions for commercial and industrial facilities.He focuses on incorporating storage into broader project strategies to reduce demand charges, enhance resiliency, and unlock additional value through market participation. His experience spans utility-scale BESS development, execution, and operations, bringing a disciplined, execution-focused approach to every project.
Varun Harnathka
VP of EPC Business Development & Pre-Construction
Varun leads preconstruction and business development efforts at Pfister Energy, supporting commercial solar and storage projects from early-stage strategy through construction readiness.He works across estimating, procurement, engineering coordination, and client development — aligning technical execution with project economics, schedule goals, and long-term performance. With experience spanning distributed generation and utility-scale energy projects, Varun brings a disciplined, solutions-oriented approach to complex project delivery and large-scale energy infrastructure development.
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Jason Chiang
Senior Director of Commercial Sales
Shannon Barry
Corporate Controller
Janet Walsh
In-House Counsel
Tim Kelley
VP of Finance
Elena Rachkov
Project Accounting & Subcontract Lead
Noel Chagas
Assistant Controller
Tara Pfisterer
Project Accountant
Andrei Belov
Director of Engineering
Hasseeb Awan
Project Engineer
Tatiara Caetano
Solar Design Engineer
Daniel Fairbank
Director of Project Management & Self-Perform Operations
Jason Avramides
Director of Construction
JR Koehler
Director of Construction
Joe Dudas
Senior Procurement Manager
Adam Keyser
Maryland Construction Manager
Matt Merideth
Construction Manager
Nick Nicolaides
Construction Manager
Kyle Christian
Quality Manager
Brian Levin
Supervisor of Construction MD Division
Tyler Simon
Construction Manager
Andrew Ackerman
Senior Construction Manager
Antonio Meza
Assistant Construction Manager
Dan Wostbrock
Construction Manager
Tom Morrell
Project Manager
John Turchioe
Assistant Project Manager
Richard Laga
Project Estimator
Greg Potter
Project Manager
Isaac Wolfson
Project Development Manager
John Stockhausen
Project Manager
Greg Jakubek
Preconstruction Project Manager
Marian Tafuri
Human Resources Manager
Christina Dahdah
Field Workforce and Operations Coordinator
Emma Portilla
Administrative Assistant
Alysa Wax
Director of Marketing
Alysa leads the company’s marketing efforts across brand, communications, content, and marketing operations. With a background spanning multiple B2B industries, she focuses on helping organizations communicate clearly, build stronger visibility, and support long-term growth. She enjoys bringing together strategy, creativity, and data to create marketing programs that deliver meaningful business results.
Stephanie Swenty
Marketing Assistant
Jack Wright
AI/Automation Engineer
Chris West
Director of Commissioning and O&M
Mike Devito
Service & Commissioning Manager
Ronnie Johnson
O&M Service Tech
Julian Rodriguez
Commissioning Supervisor
Franciszek Sieczka
Foreman
Romel Daise
Foreman
Gary Callahan
Foreman
Corey Ray
Foreman
