Staff
Seattle Office
701 Fifth Ave, Suite 1600
Seattle WA 98104
Dallas Office
1301 Young Street, Room 840
Dallas TX 75202
DES provides comprehensive multi-disciplinary Project Management, Architecture and Engineering, and Acquisition Management Services. Our offices are located in Seattle and Dallas and our talented and experienced team is comprised of project managers, architects, engineers (civil, structural, environmental, mechanical, and electrical), contract specialists and lease contracting officers.
Director's Office
| Staff Member | Title | Phone | Location |
|---|---|---|---|
| Denman Ondelacy, P.E. | Acting Director (Civil) | 227-224-7820 | Seattle |
| Carolyn Jones | Secretary | Dallas | |
| Patricia Pinkney | Administrative Officer | 240-460-5438 | Dallas |
Project Management
| Staff Member | Title | Phone | Location |
|---|---|---|---|
| Denman Ondelacy, P.E. | Deputy Director (Civil) | 227-224-7820 | Seattle |
| Frank Chua, P.E. | Civil | 240-701-9682 | Seattle |
| Scott Fillerup, P.E. | Mechanical | 240 475-7547 | Phoenix |
| Bruce Kemmet, PE | Civil | 214-907-1514 | Dallas |
| Robb McClain, R.A. | Architect | 469-978-5009 | Dallas |
| Matthew Mergenthaler, P.E. | Civil | 206-295-1459 | Seattle |
| Adam Hughes, P.E. | Civil | 240-474-1068 | Tucson |
Architecture and Engineering
| Staff Member | Title | Phone | Location |
|---|---|---|---|
| Paul Gagliano, P.E. | Chief of Architecture & Engineering Branch | 240-463-3109 | Dallas |
| James Aberle, AIA | Architect | 469-261-1139 | Dallas |
| Alex Gamble, AIA | Architect/Sustainability | 240-461-3537 | Dallas |
| Guibin (Nick) Lu, SE P.E. | Civil/Structural | 240-461-9042 | Seattle |
| Hung Nguyen, P.E. | Mechanical Engineer | 240-461-4591 | Dallas |
| CDR Tom Armitage, P.E. | Civil Engineer | 240-461-3697 | Dallas |
Acquisition Management
| Staff Member | Title | Phone | Location |
|---|---|---|---|
| Melissa Warmath | Deputy Director / Chief of OEHE Acquisitions | 469-261-1151 | Dallas |
| Andrew Hart | Supervisory Contracting Officer - Seattle | 206-375-4443 | Seattle |
| Jennifer Scroggins | Supervisory Contracting Officer - Dallas | 214-789-8164 | Dallas |
| Kelly Britton | Contract Specialist - Federal Acquisition | 602-245-2206 | Phoenix |
| Daniel Cotto | Contract Specialist - Federal Acquisition | Seattle | |
| Toby Hayden | Contract Specialist - Federal Acquisition | Portland | |
| Taylor Kanthack | Contract Specialist - Federal Acquisition | 240-478-1501 | Seattle |
| Erik Lundstrom | Contract Specialist - Federal Acquisition | 240-485-6419 | Seattle |
| Robert Miller | Contract Specialist - Federal Acquisition | Dallas | |
| Matthew Sanders | Contract Specialist - Federal Acquisition | 240-472-6176 | Seattle |
| Shaukat Syed | Contract Specialist - Federal Acquisition | Dallas | |
| Thupten Tsering | Contract Specialist - Federal Acquisition | 240-504-0934 | Seattle |
| Joshua VanSkike | Contract Specialist - Federal Acquisition | 240-485-7526 | Seattle |
| Jong Kim | Contract Specialist - Federal Acquisition | 206-619-0638 | Seattle |
| Colleen Henry | Contract Specialist - Federal Acquisition | 240-463-3813 | Cleveland |
| Crystalynn Rogers | Contract Specialist - Self-Governance | 214-912-5086 | Dallas |
| Robyn Red Tomahawk | Contract Specialist - Self-Governance | 469-978-5010 | Dallas |
| Teresa Garner | Lease Contracting Officer | 240-463 4967 | Dallas |
| Derek Betz | Lease Contracting Officer | 240-472-6944 | Dallas |
| Malachi Nance | Lease Contracting Officer | 240-478 3803 | Dallas |
| Ryan Siglock | Lease Contracting Officer | 240-463 4722 | Dallas |
