Engineers, control system specialists & technicians, project engineering design & construction, automation system design

Key Personnel

Sophie Purdy

President  |  PE  |  LEED AP  |  MBA


Sophie Purdy is a Professional Electrical Engineer who has provided energy and electrical engineering, construction administration, and project management services for a variety of projects including commercial, industrial, government, educational, religious, aviation, and LEED/sustainable design projects. Her project experience includes design and construction of facility controls, power distribution, lighting, lighting protection and grounding systems. Sophie has a Bachelor of Science from Texas Christian University and a Masters in Business Administration from Baker University.

Sophie Purdy, Axxis Building Systems
Ezra Purdy, Axxis Building Systems

Ezra Purdy

Vice President  |  PE  |  NEBB CP


Ezra Purdy is a Professional Mechanical Engineer and a NEBB Certified Professional who specializes in design-build construction with an emphasis in HVAC Controls and Mechanical Systems. He has extensive experience in design and construction services for the industrial and commercial sectors. Ezra has also provided commissioning and retro commissioning services for a variety of facilities including but not limited to; healthcare, municipalities, military and correctional institutions. Ezra holds a Class A Mechanical Contractors License in Texas and has a Bachelor of Science from Texas Christian University.

Rob Weis

Vice President | PE


Rob Weis is a professional Electrical Engineer specializing in industrial PLC controls and SCADA system design and installation.  Rob has extensive experience providing automation system design and construction for a variety of projects including industrial buildings, offshore installations, oil field applications, gaming equipment, card reading, etc.  Rob’s experiences also include providing system analysis, design, installation, and project management services for retrofits to existing PLC, SCADA, and other automation systems in new facilities.  Rob has a Bachelors of Science from Texas Christian University.

Dirk Suitt

Vice President  |  Mechanical


Dirk has experience working with some of the largest healthcare facilities in Texas. His extensive background in steam systems, industrial fabrication, and mechanical construction have helped him achieve unparalleled success in the design-build arena both locally and abroad. Dirk has a Bachelor of Science from Tarleton State University.

Dirk Suitt, Axxis Building Systems

Chris Baack

Vice President | Master Electrician


Chris Baack has over 25 years of experience in Project Management of Electrical, HVAC, Building Controls, Hot and Chilled Water Systems, Industrial Controls and Electrical, Wind and Solar, and Oil Field Instrumentation.  Chris manages all aspects of the construction projects with experience in electrical installations, industrial controls, mechanical equipment, building automation, PLC’s in healthcare facilities, as well as commercial and industrial buildings.  Chris holds a Master Electrician license in the State of Texas.

Chris Baack, Axxis Building Systems
Randy Harris, Axxis Building Systems

Randy Harris

Director of Mechanical Services | Master Plumber M39633


Randy Harris is our Director of Mechanical Services and Master Plumber (RMP) who specializes in mechanical and plumbing installations for retail, industrial manufacturing, food processing, healthcare, government facilities and commercial buildings. With over 30 years of experience, Randy has held various positions and spent more than 15 years on safety committees helping develop safety programs, as well as completion of various OSHA programs of the OSHA 501.

Kent Piety

Senior Project Manager | Mechanical


Kent Piety is a TDLR Licensed Air Conditioning and Refrigeration Contractor and Senior Project Manager who specializes in mechanical installations, troubleshooting, and service.  Kent has over 28 years of experience in the mechanical industry and holds Project + Certification, BOMI SMA distinction, EPA Section 608 Universal Certification. Kent is also registered in the state of Texas as an Apprentice Electrician and has successfully completed both OSHA 10 and OSHA 30 training.

Kent Piety, Axxis Building Systems

Edna Bartolomei

Director of Engineering | EI | LEEP AP


Edna Bartolomei is a Mechanical Engineer who specializes in building mechanical and piping systems for renovations, expansions and new building construction. Edna has extensive experience with whole building energy simulations, energy conservation measures, life cycle cost analysis, and LEED requirements. Her ability to seek out details in big, small, and unique spaces, has helped her in various project designs including but not limited to healthcare, various government facilities, commercial spaces, and independent school districts. Edna holds a Bachelor of Science in Mechanical Engineering from the University of Puerto Rico.

Edna Bartolomei, Axxis Building Systems







TBPE F-13289

NEBB 3552


Axxis Building Systems

1200 Summit Ave, Suite 650  |  Fort Worth, TX 76102

Tel: 817-632-6100  |  Fax: 817-632-6101