Nathan Millecam

Co-Founder, CEO


Nathan (Nate) Millecam has over 15 years of experience in the aerospace and aviation industries.

As CEO and Co-Founder of Electric Power Systems, Nate oversees and manages corporate strategic, developmental, and innovation efforts. His 15 years of experience combined with his extensive business knowledge make him an exceptional leader in the industry.

Nate began his professional career as a technology consultant for e-commerce businesses. After completing his M.B.A. at the W.P. Carey School of Business at Arizona State University, Honeywell Aerospace admitted him into its prestigious Leadership Development Program, where he served in a variety of capacities.

Nate gained an interest in electric propulsion while serving as the program manager for Honeywell’s 787 Flight Control Electronics Power System, which included lithium-ion battery systems.  Later, he took on the role of product manager for Honeywell’s electric power systems portfolio, which consisted of generation, distribution, and conversion products.

His experience at Honeywell led him to take a position as the director of strategy and business development at International Rectifier. There, he led merger and acquisition efforts for high-reliability applications. After Infineon acquired International Rectifier, Nate served on the post-acquisition integration team. During this time, he integrated key processes such as sales, inventory, and operations planning; technology roadmap development; annual operation planning/budgeting; and long-term strategic business planning. He later became the director of business management for the high-reliability business unit, where he managed a $200 million portfolio. Products under this portfolio consisted of space-grade converters, power semiconductors, and battery management systems. 

In 2016, Nate and Randy were given the opportunity to spin out many of the energy storage assets from Infineon.  By collaborating efficiently and intelligently, they have been able to develop Electric Power Systems into a premier electric propulsion provider in numerous end markets. 

Nate has a Bachelor of Science in business management from Utah Valley University and an M.B.A. from Arizona State University with an emphasis in operations and finance.  He resides in Logan, Utah with his wife and 4 children. In his free time, he enjoys exercising, the outdoors, and spending time with his family.

Randy Dunn

Co-Founder, Chief Science Officer


Randy’s 35 years of engineering experience in the aerospace industry has proven invaluable to Electric Power Systems and its success in the aerospace industry.

He started his career at McDonnell Douglas (now Boeing), working on projects such as the C-17 Integrated Flight Test Program.  After several years, he transitioned to an engineering manager role at Maxys, where he worked on various International Space Station (ISS) systems at the Kennedy Space Center.  He also ran the processing facility and performed final certification testing on the communications and power quality of the ISS solar array power distribution system. Moreover, Randy worked in coordination with Hughes Space and Communications, including a project focused on the advanced Xenon Ion Propulsion System (XIPS).

In addition to his engineering expertise, Randy is an incredible entrepreneur.  Randy founded Phillips Aerospace in 1997, and this company is now a premier supplier of mechanical components, flight test systems, and avionics for aerospace applications.  Randy then co-founded Evaira (which would later become Electric Power Systems) in 2008 after recognizing the need for more robust energy storage systems in high-reliability markets.  Evaira found work using its energy storage systems for military applications and controllers for micro grids. The group further expanded its energy storage work by moving into medical markets, primarily focusing on mobile CT scan applications.  Randy later sold Evaira in 2011 to International Rectifier, which further pursued battery management circuitry technology. 

Randy received his Bachelor of Science in electrical engineering from Cal State Fullerton.  Randy lives in Orange, CA with his wife Shelly and four kids.  In his free time, he enjoys hiking and walking his three huskies and spending quality time with family.

Michael Armstrong

Chief Technology Officer


As an industry leader in the field of hybrid-electric and distributed electric propulsion systems, Mike has led efforts in developing lightweight, certifiable battery technologies and innovative battery-based integrated propulsion systems. 

Prior to his role at Electric Power Systems, Mike worked as the head of the hybrid propulsion group at Rolls-Royce LibertyWorks. He led propulsion systems integration and design activities for multiple electrified aircraft propulsion programs. Armstrong also worked as the principal investigator on numerous electrified aircraft propulsion systems concept development programs. 

Mike actively promotes the aerospace industry’s transition to new propulsion technology solutions through his involvement in SAE’s Electric Aircraft Steering Group and AIAA’s Aircraft Electric Propulsion and Power Working Group.

He has also authored over 25 scholarly publications in the area of systems engineering and aircraft electric propulsion and is an inventor with over 20 filed patents. For his contributions to the field of electrified aircraft propulsion, he was awarded SAE’s Charles M. Manly Memorial Medal and Rolls-Royce’s prestigious Sir Henry Royce Award.  He was also featured in the Indianapolis Business Journal’s “40 Under Forty Class of 2016.”

Mike holds a bachelor’s degree in mechanical engineering from Brigham Young University and a master’s and Ph.D. in aerospace engineering from the Georgia Institute of Technology.

Tim McLevish

Timothy McLevish

Chief Financial Officer


McLevish’s career has spanned leadership roles in every financial discipline and includes extensive operations management and oversight of administrative systems and business services. Prior to joining EP-Systems, McLevish served as CFO of Carrier Corporation, helping them spin-off from United Technologies.  Prior to that, he served as CFO for Walgreens, (and then the merged Walgreens Boots Alliance), Kraft Foods, (and then the spun Kraft Foods Group), Ingersoll-Rand, and the Mead Corporation.  During his career, he has led mergers, acquisitions, divestiture, spin-offs, and numerous corporate financing transactions.

As EP-Systems CFO, McLevish will lead the company’s finance function and will be responsible for its financial operations, including accounting and reporting, financial planning and analysis, treasury, tax, audit, and investor relations.

McLevish holds a bachelor’s degree in accounting from the University of Minnesota and an MBA from Harvard Business School. In addition, he is a certified public accountant.

Michael Duffy

Vice President of Product


Michael Duffy serves as Vice President of Product at Electric Power Systems, where he leads the company’s business development and product management units as it introduces certifiable products to the market.

Michael Duffy comes to EP Systems following an 18-year career as a leader at Boeing. He held numerous leadership positions at Boeing NeXt—Boeing’s urban air mobility organization—including Propulsion Lead for the “Cargo Air Vehicle” program, which successfully demonstrated electric VTOL potential by flying two life-size, Star Wars X-wing aircraft over Disney World in 2020.  He has as also served as a program leader in Boeing’s Research and Technology Division, leading electric VTOL technology programs including the LIFT! vertical electric flying crane, DARPA VTOL X-plane scale demo, and several Urban Air Mobility studies with NASA, DARPA and ONR.

Prior to his work on electric VTOL, Michael worked in Boeing Defense, Space and Security where he pushed the boundaries of vertical lift technology. He led a large-scale wind tunnel test for Active Flow Control technology on the V-22 Osprey aircraft, demonstrating a payload improvement of over 1,200 lbs. He also led the design and test of Nacelle Sails, which were flight demonstrated to improve the V-22 Osprey lift to drag ratio by 15%.   Michael also led various technology programs to improve vertical lift performance for military aircraft such as adaptive rotor technology for DARPA and ONR.

Michael is currently the Technical Director for the Vertical Flight Society (VFS) 2022 Forum, which is the vertical lift industries premier technical conference. He has held several technical leadership positions with in AIAA and VFS including AIAA Transformational Flight Committee and VFS Transformative Vertical Flight Conference.

Michael currently hold 9 patents with 6 additional patents pending.  He has participated in Boeing Leadership Next program, which is 2-year accelerated leadership program designed to provide experiential learning through rotation across various leadership positions.  He is currently finishing his MBA at Washington University of St. Louis, with expected graduation in Spring 2023.  He holds a Master of Science in Aerospace Engineering at Georgia Institute of Technology and a Bachelor of Science in Aerospace Engineering at Penn State University.

Matthew Jones

Deputy General Counsel


Matthew Jones serves as Electric Power Systems’ deputy general counsel. His eight years of practicing law in combination with his robust skillset make him an invaluable asset to Electric Power Systems.  

Prior to joining Electric Power Systems, Matthew developed legal expertise in diverse fields. He served as a public defender for four years; partnered at Larson & Simpson, PLC. for two years; and served as deputy general counsel for two years at Redflex Traffic Systems, Inc.  

He received his Juris Doctorate from the Phoenix School of Law and his Bachelor of Science in Finance from Arizona State University. 

Kevin Spencer

Senior Director of Program Management


Kevin Spencer serves as the Senior Program Director at Electric Power Systems and currently leads its Program Management Office. He is a seasoned program manager with more than eight years of engineering experience and has worked as an engineering lead and senior program manager at Electric Power Systems (EPS) for two years. 

Prior to joining the EPS team, he served in numerous program management and senior engineering roles during his six-year career at Cummins, Inc. Kevin obtained his Master’s of Science in Engineering (MSE) from Purdue University and Master’s of Business Administration (MBA) from Indiana University. 

Kevin has been actively involved in leading all aspects of engineering and program management tasks, has a keen focus on customer expectations, and is committed to finding successful solutions and outcomes for the programs under his management.  

Kevin resides in Smithfield, Utah, with his wife Kelli and their four children. In his free time, he enjoys outdoor activities and spending time with his family.

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