David Greaney
David Greaney, PE, CFM, is a Project Manager for HR Green’s Transportation Business Unit in Texas. David has 9 years of experience in the municipal and TxDOT infrastructure industry performing both roadway and drainage design. He balances drainage analysis and design experience in the public sector with roadway design experience to develop high functioning transportation […]
Clayton McCormack
Clayton McCormack, PE, is a Senior Project Manager in the Water and Wastewater Practice for ISS, An HR Green Company. Clayton has extensive experience in the design of wastewater treatment facilities and systems, specializing in MBR, BNR, and biosolids processes. He has over 25 years of experience in designing and constructing a full range of […]
Devyn Brown
Devyn Brown is a Land Development Project Manager for ISS, An HR Green Company in Sarasota, Florida. Devyn has over 20 years of experience designing and constructing government infrastructure projects. She has supported the civil and site design, permitting, construction management, and regulatory compliance of numerous water, wastewater, and stormwater quality projects. She is proficient […]
Mark Mueller
Mark Mueller is a Lead Associate Engineer in Land Development for ISS, An HR Green Company in Sarasota, Florida. Mark has worked on various infrastructure projects throughout Sarasota County for the past 35 years. Mark’s responsibilities include project management, technical design expertise, funding assistance, management, and overall project coordination. In addition, he has a successful […]
Bill Huffman
Bill Huffman is a Construction Manager in the Water and Wastewater practice for ISS, An HR Green Company. Bill has more than 45 years of experience in designing and constructing civil engineering projects, with a particular focus on developing horizontal infrastructure such as roads, utilities, pipelines, landfills, and earthwork. He has extensive experience in earthwork […]
Brian Stahl
Brian Stahl is the Florida Regional Director for ISS, An HR Green Company. Brian is a professional engineer with over 35 years of experience in managing engineering planning, funding assistance, design, permitting, and construction services for wastewater treatment projects. His work spans municipal utilities, industrial clients, and federal government installations, and involves continuous direct contact […]
Adolfo Gutierrez
Adolfo Gutierrez, PE, is a Project Manager for HR Green’s Municipal Services. Adolfo has over a decade of experience in public infrastructure and land development. His background includes managing land development operations for various cities. He has led efforts in standardizing engineering procedures, overseeing development impact fee assessments, and coordinating across multiple city departments and […]
Zaki Ali
Zaki Ali, PE, is a Senior Engineer for HR Green’s Water and Wastewater practice. With over 17 years of civil engineering experience, Zaki has served as structural lead for a variety of industrial and infrastructure projects including coal and gas power generation facilities, nuclear power generating facilities, oil refineries, and water/wastewater treatment plants. His experience […]
Wentao Dai
Wentao Dai, PE, is a Lead Engineer for HR Green’s Water and Wastewater Practice in Texas. Wentao has over 15 years of experience in structural, geotechnical, and project management on various types of industrial and residential structures. He is a recognized expert in structural engineering, with extensive experience in structural designing and analyzing LNG terminals, […]
Patrick Small
Patrick Small, AICP, is a Lead Planner for HR Green’s Municipal Services business unit. Patrick brings over 25 years of experience helping public agencies navigate complex planning, infrastructure, and policy challenges. A recognized leader in military-community collaboration, he has led high-profile initiatives focused on climate resilience, land use compatibility, infrastructure vulnerability, and redevelopment. His extensive […]