Denis has 39 years of experience in land surveying, managing and coordinating survey field crews, processing survey data, and providing mapping for all types and levels of survey. He is familiar with virtually all modern survey methods including GPS, total stations, and data collectors, and has managed a broad range of surveying projects including property line retracement, topographic, utility, wetlands, ALTA/ACSM land title, and construction layout surveys.

As the Director of Land Surveying at Nitsch Engineering, Denis is responsible for coordinating projects, providing QA/QC, and implementing safety procedures and processes within the survey group.

As an active member of the Florida Land Survey Council, Denis earns 24 continuing education credits every year to maintain his PLS license; this focus on lifelong learning keeps him up to date on the latest land surveying approaches, techniques, and challenges.