Meet Our Executive Team
Leonard Buzz is CEO of On Center Software, Inc. In his role as the company’s chief executive, he oversees all aspects of On Center Software's solution design, including development, production and implementation and leads the firm’s executive “Vision Team” for software products.
Mr. Buzz founded On Center Software in 1988 with the launch of his original software concept, Quick Bid®. With an extensive business background in commercial contracting, he was inspired to design software that would help contractors manage their day-to-day duties while helping them avoid common mistakes that prevented them from making profits on bids. In 1995, Mr. Buzz invented On-Screen Takeoff®, the most advanced digital takeoff tool on the market today.
Under his direction, On Center Software continues to develop and launch innovative software products for construction industry professionals, including Digital Production Control™, the most profit-friendly tool in the construction technology toolbox.
Cecilia Padilla, President of On Center Software, Inc. is an internationally known expert in the construction industry. Under the leadership of Mrs. Padilla, On Center Software introduced Digital Production Control™ patented labor control technology, increased customer support accessibility, and launched our new Training Department to better educate and train customers and partners. She serves on the firm's executive Vision Team, a think tank for the future of construction automation.
Mrs. Padilla is a respected estimator and project manager in the drywall industry. Like many professionals in construction, she is a second generation construction professional. Mrs. Padilla's expertise spans 25 years in drywall, light- and heavy-gauge framing, lath and plaster, EIFS, fireproofing-themed facades, and acoustical ceilings. Prior to joining On Center Software in 2008, she worked for Marek Brothers Systems in Houston, Texas (where she was a power user of On Center Software solutions) and for Raymond Interior Systems in both Las Vegas, Nevada and Orange County, California.Her passion for the industry is best observed during her numerous speaking engagements around the world. Mrs. Padilla speaks with owners, architects, general contractors, estimators and project managers in the industry to understand their challenges and issues. This first-hand knowledge of construction is the foundation for On Center Software's customer centric business model.
Angelo M. Castelli
Vice President, Operations
Angelo M. Castelli is Vice President of Operations for On Center Software, Inc. Mr. Castelli's responsibilities include Direct Sales, Channel Partners, Marketing, and R&D. In addition, he serves on the firm's executive Vision Team, a think tank for the future of construction automation.
He brings 10 years of commercial construction experience that includes chief estimator, project manager, and team management. His expertise includes metal framing, carpentry, drywall, insulation, acoustic ceilings, and millwork. Prior to joining On Center Software, Mr. Castelli worked for Western Reserve Interiors, Inc. of Cleveland, Ohio, where he was a power user of On Center Software solutions.
Mr. Castelli was instrumental in the creation and deployment of On Center Software's business development and plan room programs. As a result of his vision, On Center Software solutions are used in over 200 academic institutions as required curriculum courses for construction management degrees. Mr. Castelli's first-hand knowledge of estimating and project management delivers a very partner and business focused leadership across his responsibilities.