Team Dempsey

Robert Howell joined Dempsey Construction in 2021 and is currently our Total Station Field Engineer.

Ronald Villagrana joined Dempsey Construction in 2023 and is currently a Project Engineer for projects out of Calexico, CA.

Ronnie Sarkisian joined Dempsey Construction in 2016 and is currently a member of the Field Operations team.

Ruben joined Dempsey Construction in 2025 and currently serves as a Project Manager/Estimator. 

Ryder Sands joined Dempsey Construction in 2025 and is currently a member of the Field Operations team.

Ryne Ahearn is a Dempsey Construction superintendent with over 16 years of experience in the construction industry. He started his career as a foreman/laborer and has diligently worked up to his current position. Ryne is directly responsible for overall job site supervision of craft foremen and their crews; estimating, ordering, and controlling material and equipment; job scheduling; coordinating the budget and maintaining labor cost controls; coordination with city/county agencies; and overall coordination and scheduling of all subcontractors. Ryne adds significant value to every job as he brings proven experience across a diverse cross-section of the building industry. He has worked on a wide variety of projects in his career, ranging from life science/biotech lab environments to medical environments, schools, churches, general commercial ground-ups, and tenant improvements. In his spare time, Ryne enjoys sports, golfing, DIY projects at home, and everything outdoors

Sandra Myers joined Dempsey Construction in 2021 to oversee accounts payable. Originally from Mozambique, Sandra has lived all over the United States, including Florida, Hawaii, and Virgina and speaks several languages. In her free time, Sandra enjoys weightlifting, spending time with her husband and their 2 kids, hiking, and travelling.

Sarah Wuthrich joined Dempsey Construction in 2025 as an Operations Support Specialist. Originally from Palm Springs, Sarah spent most of her childhood in Encinitas, California. She earned a soccer scholarship to Concordia University in Nebraska, where she completed her degree in Business. Outside of work, Sarah enjoys spending quality time with friends and family, staying active, and embracing the outdoors.

After interning with Dempsey Construction for three summers, Scott Geier officially joined the team as a Project Engineer in 2023 and has since advanced to Project Manager. A San Diego native, Scott graduated from Cal Poly San Luis Obispo with a degree in Construction Management. In his spare time, Scott enjoys hiking, mountain biking, spending time at the beach, and restoring vintage cars.