Hernan joined ONEIL in 2002 as a technical writer and held several positions before being appointed President and CEO of ONEIL in 2016.
In 2004, he became Program Manager on the United States Army Tank-Automotive Armaments Command (TACOM) Electronic Maintenance System (EMS). While in this role, he oversaw the expansion of EMS from a few tactical vehicle platforms to more than 15, including combat, construction, and material handling, as well as joint programs with the U.S. Navy and U.S. Marine Corps. Hernan then led sales and marketing, during which time ONEIL experienced significant growth in commercial business revenue.
Since becoming President and CEO, he has focused on driving long-term growth through diversification, introducing new products and services, modernizing technology, and developing a culture designed to support employee-owners.
Prior to joining ONEIL, Hernan worked in the manufacturing industry and specialized in work-center design; productivity, efficiency, and improvement; and process and product documentation.
Hernan served on the Dayton Area Chamber of Commerce Board of Trustees and is currently serving on the Wright State University College of Engineering and Computer Science Board of Advisors. He is also a member of the Wright State University Foundation Board of Directors.
Hernan holds a Bachelor of Science degree in Operations Management from National University and has received recognition and commendations from TACOM for his service to EMS and the
U.S. Army.
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David Stackhouse joined ONEIL in 1994. As CIO, he is charged with ensuring technology is aligned with the organization’s mission and its business objectives. He has implemented technologies for internal infrastructure, network integrations, and data security to accommodate a variety of customer needs.
Under his leadership, ONEIL has achieved ISO 27001 certification for its Information Security Management System (ISMS) and is compliant with other standards such as NIST 800-171 and the Center for Internet Security controls. ONEIL has been the recipient of multiple industry awards for its vulnerability management and overall security posture.
As ONEIL Vice President, David provides support to the CEO and assists in the management of the company’s Employee Stock Ownership Plan (ESOP) to ensure not only its overall sustainability but also its viability as a recruiting tool for growth.
David joined ONEIL when he was hired from a temp agency as a computer support specialist. At the time, he was one of two people in tech support. His rise through the company took him from the service desk to IT Supervisor, Manager, and Director, and ultimately to CIO and Vice President. He has been responsible for all aspects of the technology function at ONEIL including local datacenter and cloud infrastructure, high-availability hosting, data security, and the software development life cycle. He studied Computer Engineering at Wright State University, is a Mensa member, and has held several technical certifications throughout his career.
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As Chief Financial and Operating Officer (CFOO) and a member of the executive leadership team, Kristen’s primary responsibilities include overseeing all finance and operational functions, developing and managing internal controls, driving organizational efficiency, and providing strategic direction, supporting O’Neil’s continued growth. In this role, she leads financial reporting, forecasting, compliance, and performance measurement while aligning day-to-day operations with the company’s long-term strategic objectives. Kristen partners closely with executive leadership to strengthen process integration, enhance cross-departmental collaboration, and ensure operational excellence throughout all business units.
Kristen joined O’Neil with more than two decades of experience in enterprise financial management, strategic planning, and organizational transformation within the United States Air Force. During her tenure, she directed fiscal and execution oversight for portfolios ranging from $500M to exceeding $75 billion, guided multi-center integration efforts, and led cross-functional initiatives strengthening internal controls, optimizing performance to a 99.99 percent execution rate, and unlocking hundreds of millions in funding to support mission-critical programs.
Kristen holds an MBA from Wright State University and a Bachelor’s degree in Accounting from the University of Dayton. She is a Certified Defense Financial Manager with Acquisition Specialty and a Department of Defense Level III Certified Financial Manager.
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Phil Nussman is the Corporate Compliance & Quality Manager for ONEIL. He ensures all our customers’ requests and needs, as specified in every contract, are met or exceeded by every ONEIL employee-owner’s efforts. Furthermore, he manages our Quality Department, which ensures the processes defined in our Quality Management System in accordance with ISO 9001:2015 are adhered to and all quality goals of our customers are met or exceeded.
Phil has more than 25 years of experience with ONEIL as a Logistics Support Analyst, Provisioner, Technical Writer, Strategic Business Unit Manager, Facility Security Manager, and Facility Manager.
Prior to joining ONEIL, Phil served in multiple roles as Logistics Analyst to Transportation Manager to Corporate Buyer in logistics support for air freight and warehousing industries. He became the Director of Supply Chain and Logistics for Archway and WorkflowOne by developing the most efficient supply chain network for their customers’ products. His main duties were negotiation and management of all logistical suppliers’ contractual agreements and capital equipment for warehouse operations.
Phil holds a Bachelor’s degree in Marketing Management from the University of Dayton in Dayton, Ohio. He is certified as a Black Belt in Six Sigma from GE Cincinnati. Phil is a member of NDIA and IFMA .
COMMUNITY INVOLVEMENT
Phil is past President of St. Paul’s Parish Council, Chairman of the Northmont Athletic Hall of Fame Committee, and Chairman and now a member of St. Paul’s Fish Fry Committee. Finally, he served as Vice President of the Englewood Little League baseball and Future Bolts basketball leagues.
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Melany Wendeln is the Human Resources Manager at ONEIL, responsible for leading HR operations and aligning human resources initiatives with the company’s strategic objectives. In this role, she oversees recruitment, onboarding, employee relations, compensation and benefits administration, HR systems, and compliance with employment laws, ensuring processes meet the specific requirements of government contracting.
Melany joined ONEIL in 2020, beginning her career in the Accounting Department before transitioning into Human Resources. Over the past 5 years, she has played a key role in HRIS implementation, the rollout of the ICHRA benefits program, leave and accommodation tracking, and other initiatives that have optimized HR operations, enhanced the employee experience, and improved organizational efficiency. She leverages technology to streamline HR processes, maintain Department of Defense compliance, and provide actionable insights to leadership that support workforce strategy and business growth.
Melany holds a Bachelor’s degree in Human Resource Management from the University of Arizona and is recognized for her strategic, ethical, and employee-focused approach to human resources management.
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Armando Monzon is the Director of Software Development at ONEIL. Armando is responsible for the technical execution of Commercial, Aerospace, and Defense Business Unit software products and technology solutions. Armando also directs Research and Development projects of emerging technologies.
Armando has more than 25 years of deep and broad experience in software engineering, business system integration engineering, very large database architecture, and global software project and product management.
Armando graduated from Wright State University with a Bachelor of Science in Computer Engineering and soon joined ONEIL as a Publications Specialist in ONEIL’s newly formed Technology Group. Throughout his tenure, he has held progressive leadership roles, including Lead Database Engineer and Commercial Software Development Manager. During his tenure at ONEIL, Mr. Monzon and his team have matured ONEIL’s technology offerings from ad-hoc publishing and custom web solutions to constructing a robust framework called ONeSOURCE. ONeSOURCE is the foundation for a suite of configurable products and SaaS solutions that are designed to deliver critical product support information to a global market.
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As ONEIL Controller, Cindy Schneider manages all aspects of the accounting department, ensuring up-to-date financial processes and accurate and timely customer billings. Her areas of expertise include budget preparation and execution, financial reporting and documentation, GAAP, cash management, job cost/contract accounting, government accounting, payroll and taxation, timekeeping, and general accounting.
Cindy has deep experience with government contract accounting and DCAA compliance. During her tenure, she has streamlined ONEIL accounting systems and reports to ensure compliance with government accounting requirements. She has also successfully managed and completed multiple audits and incurred cost submissions and acceptance of indirect rates by DCAA.
Prior to joining ONEIL in 2018, Cindy spent more than 30 years as a controller or accounting manager for various companies in the technology, marketing, manufacturing, and sales/distribution commercial industries. Most recently, she worked for 11 years as the financial manager for a $20 million government defense contractor. Her previous employers include Azimuth Corporation, Gosiger, and VARtek in the Dayton, Ohio area, and Resource Interactive in Columbus, Ohio.
Ms. Schneider holds an Associate degree in Accounting and is working toward completion of her Bachelor’s degree in Management/Accounting at Park University, WPAFB.
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Bill Whistler is the Chairman of the Board for Shook Construction, one of the Dayton region’s top construction firms. Bill started with Shook as a Co-Op more than 40 years ago and eventually took over as CEO, a role he retired from in June of 2020. During his tenure as CEO, his focus was on the execution of the company’s strategic plan as well as the professional development of company leadership. Bill began his career in 1978 while earning his B.S. in construction management from the University of Cincinnati. Over the course of time, he held nearly every operations position within Shook Construction.
Bill is a known leader in the construction industry as well as in the local community.
He has served on the boards of countless organizations, including the State of Ohio Chapter of the Associated General Contractors (AGC), AGC South Central Ohio Chapter, Dayton Builder’s Exchange, United Way, Sinclair Community College Foundation, Dayton Chamber of Commerce, Dayton Business Committee, Catholic Social Services, and a CityWide Development Advisory Board.
Bill has four children along with two grandchildren, and he spends his free time swimming, biking, and running. He also competes in the sport of triathlon in the summer months and enjoys snowboarding in the winter months. Beyond that, Bill loves traveling to new destinations both near and far.
Scott McGohan is the CEO of McGohan Brabender. He works on vision casting, strategy alignment and leadership deployment. He has been with MB since 1988. As a business leader, it is always about people for Scott — always has been and always will be.
Scott believes that understanding your core is the essence of transformation. That includes being vulnerable about both your strengths and weaknesses. He believes people need to see leaders make mistakes, own them when they do and teach people through success and failure. Scott believes you cannot threaten, coerce or reward people to care. You can only awaken the desire inside of them and give them the permission and encouragement to do so. Products are delivered by people, and when people believe in themselves they will believe in you.
Chrysa Theodore is Vice President of Venture Operations at Rushlight Ventures, a leading venture studio that specializes in the monetization of defense and dual-use intellectual property created by small and mid-sized businesses conducting federally sponsored research. Chrysa was the first full-time employee of Rushlight Ventures’s sister company, CRG, a leading aerospace and defense company that delivers competitively priced innovations with speed and agility.
Throughout her 25+ years in defense and aerospace R&D, technical strategy, operations, and executive management, Chrysa has successfully led and mentored the growing staff while supporting administration and operations through talent strategy, recruiting, proposaling, contracting, and executive leadership. She attributes success to cultivating and nurturing a strong corporate culture. Chrysa began her career as a manufacturing engineer at General Motors and Vernay Laboratories. She holds a Bachelor of Chemical Engineering from the University of Dayton.
Chrysa is passionate about workforce development in the Miami Valley, focused on strengthening career connections between education and workforce needs. She volunteers to create awareness of career opportunities available to the next-generation STEM workforce and serves on several advisory committees, including at the University of Dayton and Wright State University. She also serves as Vice Chair of the Engineering Science Foundation, founding council member of the DO STEM ecosystem, and committee member of DRMA Dayton Region Manufacturing Workforce Partnership.
Hernan joined ONEIL in 2002 as a technical writer and held several positions before being appointed President and CEO of ONEIL in 2016.
In 2004, he became Program Manager on the United States Army Tank-Automotive Armaments Command (TACOM) Electronic Maintenance System (EMS). While in this role, he oversaw the expansion of EMS from a few tactical vehicle platforms to more than 15, including combat, construction, and material handling, as well as joint programs with the U.S. Navy and U.S. Marine Corps. Hernan then led sales and marketing, during which time ONEIL experienced significant growth in commercial business revenue.
Since becoming President and CEO, he has focused on driving long-term growth through diversification, introducing new products and services, modernizing technology, and developing a culture designed to support employee-owners.
Prior to joining ONEIL, Hernan worked in the manufacturing industry and specialized in work-center design; productivity, efficiency, and improvement; and process and product documentation.
Hernan served on the Dayton Area Chamber of Commerce Board of Trustees and is currently serving on the Wright State University College of Engineering and Computer Science Board of Advisors. He is also a member of the Wright State University Foundation Board of Directors.
Hernan holds a Bachelor of Science degree in Operations Management from National University and has received recognition and commendations from TACOM for his service to EMS and the
U.S. Army.
Mike retired from the USAF in 2004 as an Air Force Lieutenant General with nearly 34 years of service. He also held positions of significance in the defense industries. He is involved with several community projects including the capital campaign for the Dayton Veterans Affairs Medical Center Fisher House, annual interviews for the Warren County Ohio Veterans Services Commission, the Coffman YMCA, and past president of Sycamore Creek Country Club.
A Fairfield, OH, native, Mike holds a Bachelor of Arts in Chemistry from the University of Cincinnati and a Master of Science in Management from Troy State University. He is also a graduate of the Industrial College of the Armed Forces (1986), Armed Forces Staff College (1982), Squadron Officer School (1977), Harvard Kennedy School of Government, Long Course for Senior Officials in National Security (1994) and the Massachusetts Institute of Technology, Seminar XX1 (1996).
Mike had numerous assignments across the U.S. and overseas in Viet Nam, Thailand, Korea and Germany. His command assignments included: the Oklahoma Air Logistics Center and Tinker Air Force Base OK; the 82nd Training Wing, Sheppard Air Force Base TX; and the 36th Aircraft Generation Squadron, Bitburg AB GE. He was the Air Force’s Director of Maintenance. In his final USAF assignment, he served as the Headquarters USAF, Deputy Chief of Staff for Installations and Logistics from 2000-2003 in the Pentagon.
He was a Vice President at Lockheed Martin Aeronautics from 2011-2014, where he led global F-35 Sustainment strategy and implementation. He was responsible for collaborating with the DoD Joint Program Office, the U.S. Military Services and the partner countries to provide cost-effective F-35 logistics solutions.
Mike has also owned and operated Z-Zettler Consulting. He was a senior vice president of SI International-Logistics (2007-2009) and was president of LOGTEC (2004-2008) in Fairborn OH. In addition, he has served on numerous corporate boards over the past seven years.
