Executive Team

marc filanc

Mark E. Filanc, PE, DBIA

Chief Executive Officer (CEO)
Mark Filanc holds a Bachelor of Science degree in Environmental Engineering/Water from California Polytechnic State University, San Luis Obispo and a Master of Science degree in Civil Engineering, specializing in Construction Management, from Stanford University. He has over 30 years of experience in water/wastewater design and construction, as well as extensive expertise in all areas of project management including: technical engineering, CPM scheduling, estimating, planning, safety, quality assurance/control, value engineering, groundwater evaluation and control, shoring systems, cost control, concrete design, formwork and falsework design, piping and mechanical installations, client relations, labor relations, jobsite organization, and resource allocation.

Mark is a registered professional engineer in the State of California and has been designated as a Design-Build Professional in Design-Build Institute of America’s (DBIA) charter group for lifetime experience. This designation is intended to create an accepted and recognized educational standard for experienced, professional and knowledgeable practitioners who possess a qualified and quantified level of expertise in design-build project delivery.

An experienced negotiator, Mark has negotiated labor agreements for both Filanc and the Associated General Contractors (AGC) for over 20 years. He is past chairman and current member of DBIA’s Water Committee, President of the San Diego Chapter of AGC and an instructor at the national level for AGC’s Supervisory Training Program.

Mark was also on the 2008 Board of Directors of the Boy Scouts of America, Imperial Council and selected as a 2010 Silver Beaver Award recipient for his distinguished volunteer service with the Scouting program.

omar rodea

Omar Rodea, PE, DBIA, QSD

Omar serves as Filanc’s President and has over 20 years of experience in the construction industry. Omar has a Bachelor of Science degree in Civil Engineering and is a registered Professional Civil Engineer. He previously served as Filanc’s Director of Preconstruction Services and Construction Engineering since 2005. In that role, Omar led the performance of formal value engineering and constructability reviews performed as part of Construction Manager at Risk (CMAR) and design-build projects, coordinated the bid handoff process between estimating and construction and initiates project controls including baseline scheduling, purchasing and project accounting. Project-specific construction quality, stormwater management and safety plans are also developed as part of preconstruction. Post-award, Omar oversaw Filanc’s Construction Engineering Department responsible for the development of shop and lift drawings, work packages and other services to support construction.

omar rodea

Linda Stangel

Chief Financial Officer (CFO)
Linda joined Filanc in 2018 as Chief Financial Officer (CFO). She has held senior executive-level accounting and finance positions in a variety of industries – most recently at a security system integrator and building products company. Linda holds a Bachelor of Science in Accounting from Marquette University as well as CPA and CISA (Certified Information Systems Auditor) licenses.

vince diaz

Vincent L. Diaz

Vice President, Construction Operations
Vince has 41 years of industry experience and serves as Vice President of Construction Operations and is our most experienced senior project manager. Vince has been with Filanc for 26 years and started as a Project Engineer and Project Manager. In recent years, Vince has successfully completed two design-build projects totaling $74 million, one of which was a DBIA Regional Award winner. An active leader in the Design-Build Institute of American and Associated General Contractors of America, Vince brings his vast construction experience and exceptional leadership skills to each project he manages.

Vince oversees all field operations of the company, which involves: administering the quality assurance/quality control program, furnishing technical engineering and construction expertise to Filanc field personnel; coordination of construction equipment resources; staffing decisions; interfacing with project owners; overall responsibility for field safety; coordinating project CPM scheduling; reviewing project costs; and reporting the status of field operations to the President and Chairman. He personally leads all partnering efforts, which begin with pre-construction services and include assistance with city permitting and offering alternative design and construction options that are compatible with owner budgets. In addition to his role directing Filanc’s construction operations, Vince is involved as President Emeritus of Western Pacific Region, Design-Build Institute of America and is a Labor Negotiations Committee member of the Associated General Contractors of America.

david kiess

David J. Kiess

Vice President and Director of Repair and Maintenance Division
David directs the Repair and Maintenance Division at J.R. Filanc Construction, which specializes in performing maintenance and completing upgrades and scheduled repairs under Annual Maintenance Agreements, small construction projects through Job Order Contracting (JOC) arrangements, and making emergency repairs for wastewater and water treatment plants and related facilities.

With over 30 years of experience at Filanc, David is able to help our clients solve problems efficiently and cost effectively. His role involves providing the planning, resources, and supervision for the Repair and Maintenance Division.

Additionally, he has participated in the civil and mechanical design and engineering of several major projects. Through innovative value-engineering ideas, he has saved owners of water and wastewater treatment plants hundreds of thousands of dollars during his tenure at J.R. Filanc Construction.

David is a member of CWEA (California Water Environment Association) and AWPCA (Arizona Water & Pollution Control Association).

bob zaiser

Bob Zaiser

Vice President, Chief Estimator
Bob began at J.R. Filanc Construction Company as a Senior Estimator and was promoted to the position of Chief Estimator. He holds a Bachelors of Science in Civil and Environmental Engineering from the University of Cincinnati. In 2009, he advanced to the Executive Team while still maintaining his duties as Chief Estimator. Prior to joining Filanc, he was the water group manager at ARB, Inc., for three years, responsible for managing the construction of multiple water and wastewater projects. He also completed earlier projects as project manager. Before working at ARB, Bob owned and managed his own company, JBI Water & Wastewater. He has been in the construction industry since 1981 and employed with J.R. Filanc Construction since 2006.

Bob’s responsibilities include overseeing and coordinating the estimating of water and wastewater projects including soliciting and evaluating subcontractors and equipment suppliers. His work includes analyzing value engineering options and conceptual estimates for all trades and major change orders on existing projects are evaluated, estimated and negotiated in conjunction with the project manager.

norbert schulz

Norbert J. Schulz

Vice President, Marketing & Business Development
Norbert has 25 years of experience. He holds a Bachelor of Science in Geology/Geophysics and a Master of Science in Geological Oceanography and Business Administration.

His responsibilities include development and implementation of marketing and business development strategies, including fostering strategic business relationships, developing the company’s annual marketing plan, and providing overall leadership to the company’s marketing department.

Previous to Filanc, Norbert has years of experience providing high level environmental and engineering consulting services to industrial, commercial and governmental clients on their most complex projects. He led the successful start-up of an office in San Diego for Blasland, Bouck & Lee, Inc. (BBL), which was subsequently acquired by ARCADIS U.S, Inc. (ARCADIS). Prior to joining BBL, he was the interim manager of URS Corporation’s San Diego office, which consisted of 125 staff members offering environmental (hazardous waste related, NEPA/CEQA permitting and planning, geotechnical, construction management, transportation engineering, and water resources services.

Norbert has written numerous publications and presentations including “Environmental Services and Hazardous Waste Technologies” and “Environmental Risk Management Tools”, to name a few. He currently is a member of DBIA, CWEA and participates in the Navy Liaison Committee for AGC San Diego.

gary silverman

Gary Silverman, PE, BCEE, DBIA, ENV SP

Vice President, Engineering
Gary serves as Filanc’s Director of Design Engineering. Gary has a Master of Science in Civil Engineering (Environmental) and is a registered Professional Civil Engineer in California, Arizona, New Mexico, Colorado, Nevada, and Hawaii. As the Director of Design Engineering, Gary leads the effort for Filanc in becoming a truly integrated Master Builder. Gary has devoted his entire career to the water and wastewater industry. He has a well-rounded and comprehensive background having worked in both the public and private sector directing, managing and executing a diverse range of complex projects through multiple forms of project delivery. His experience includes water and wastewater system infrastructure design, treatment facility design, treatment process evaluations, alternative analyses, water supply planning, and water quality and regulatory investigations.