Viwinco Management Team – Viwinco Windows Viwinco Management Team - Viwinco Windows

Viwinco Management Team

Viwincos Owner and President - David Barnes

David Barnes

David Barnes is  the second-generation owner of Viwinco windows and has accumulated a wealth of knowledge and experience within the industry. After graduating from college, David began working for Viwinco as the first outside salesmen. A few years later, he purchased the company and continued to cultivate it based on the humble principals it was founded on. His genuine and friendly personality has allowed him to build and maintain strong relationships on the sales side of the business and he continues to preserve an open-door policy with his employees. While he is now mostly removed from the day-to-day operations, he acts as a mentor to both his son, Skyler Barnes and Viwinco General Manager, Michael Duncan Jr.

Viwincos Chief Operating Officer

Chief Operating Officer
Mike Duncan

Prior to joining Viwinco, Michael A. Duncan, Sr. owned and operated his own construction company for 13 years. He began his career with Viwinco in 1982 when he was hired as Plant Manager. In 1990, he was promoted to General Manager and then President of Viwinco of Ohio, Inc. in 1996. During this time, he simultaneously managed both the Ohio plant and the Pennsylvania plant, splitting his time between the two. In 2002, he was promoted to Corporate Vice President and served as the Secretary of the Corporation and is a member of the Viwinco Board of Directors. In 2018, Mike was promoted to the Chief Operating Officer of Viwinco and focuses on mentoring the next generation of Viwinco leadership. Throughout his Viwinco career, Mike emphasized the need to control the source, which resulted in us bringing many typically outsourced processes in-house, resulting in industry leading turnaround times.

Viwinco - General Manager

General Manager
Michael Duncan

After graduating from Susquehanna University with a Bachelor of Science degree in 2009, Michael A. Duncan Jr. began his career with Viwinco, Inc. as a project manager. Shortly after, he moved onto customer service and then took on an outside sales role, managing the Delmarva Peninsula. In 2017, Michael was promoted to Director of Sales and Marketing to oversee Viwinco sales in both northern and southern markets. Simultaneously, Michael began to assume control of the operational side of the business as well, leading to him being named General Manager in 2018 as well as being elected to the Board of Directors. Throughout Michael’s career in upper-management, he has made it a priority to modernize the company. Having overseen projects from launching our web-based quoting software “VQ2” and the new Viwinco website, to building our state-of-the-art training facility and manufacturing expansions, Michael has focused on making Viwinco a company of the future.

Viwinco - Director of R&D

Director of R&D
Skyler Barnes

After graduating from the University of Colorado in 2015 with a Bachelor of Science in Psychology and minors in Economics and Business Entrepreneurship, Skyler Barnes joined Viwinco in 2017 as a Project manager overseeing the implementation of our 650 Door line. Since then, Skyler has worked within the R&D department to coordinate the installation of our automated Erdman insulated glass line and most recently our in-house lamination line.  In 2018, Skyler was promoted to R&D Director and was elected to the Viwinco Board of Directors. He is now focused on product development, looking for ways to continually improve on our products and test for higher performance ratings.

Black and white portrait of Viwinco team member, Kauffman.

Director of Manufacturing
Zach Kauffman

A Penn State Mechanical Engineering graduate with over 20-years manufacturing experience, Zach Kauffman joined the Viwinco team in May 2021 as the Director of Manufacturing. Over the past two decades, Zach has established a career based on Lean implementation, capacity expansion and quality enhancement. Some of Zach’s initial goals for Viwinco are to improve upon existing processes and further implement Lean manufacturing concepts in production. Thinking into the future, Zach plans to leverage the vast amounts of people-knowledge of some of our long-time employees against new ideas to help bring Viwinco manufacturing to the next level.

Viwinco - Controller

Maricela Cornejo-Jimenez

In the Summer of 2018, Maricela joined the Viwinco Accounting Department as a payroll specialist/ accounting assistant. Due to her meticulous nature and strong business analyzation skills, she was quickly promoted to Accounting Manager and Controller shortly after that. Maricela holds a Bachelors degree in accounting, is fluent in both Spanish and English and has accumulated a wealth of experience in public accounting, business management and corporate accounting. As the Viwinco Controller, Maricela ensures all corporate financials are in order, and that we continue to make wise business decisions moving forward.

Anthony Costantini Viwinco HR Director

Director of Human Resources
Anthony Costantini

After acquiring a Bachelors in Human Development and Family Studies from Penn State, Anthony began his career in human resources as a Residential Counselor serving troubled youths. After a short while, Anthony transitioned into his first human resources-specific position, where he concentrated on recruitment and onboarding. Having found success and interest in this role, he chose to pursue a Masters in Organizational Leadership at Cabrini University. Following graduation, he shifted his focus from specializing in recruitment toward more of a HR Generalist role. Over the next few years, Anthony would go on to work in various HR roles across industries including: retail, engineering consulting, biotech and building materials. In January 2023, Anthony joined the Viwinco team as our Human Resources Director. Anthony’s sense of urgency and desire to support the employees doing the value added work has yielded positive contributions to the company. Some of his short-term focuses are to continue pushing concepts that benefit the employees and to continue developing scalable standards within the company that coincide with our Lean initiatives.