KAI 360 Construction Services hired Senior Project Managers Keith Traywick at its Dallas-Fort Worth office and David “Hoss” Seitz at its St. Louis headquarters.

As senior project managers, Traywick and Seitz are responsible for the overall management and success of projects and to serve as principal liaisons to the client.

Traywick is an experienced, licensed architect with 29 years of experience in design and planning. His expertise spans international project management, urban planning and construction administration, with a focus on multifamily, retail and high-rise building design.

Prior to joining KAI, he worked as a freelance design manager on the Kay Bailey Hutchison Convention Center Dallas (KBHCCD) Master Plan and as a Project Manager at Claycomb Associates in Dallas. At KAI, Traywick is currently assigned to projects with the KBHCCD and Dallas Area Rapid Transit (DART), and the MetroLink Green Line, the current expansion project of the St. Louis light rail system.

Traywick’s career has taken him around the world, including work on projects in Saudi Arabia such as a multi-year design-build project in the King Abdullah Financial District, consisting of 56 buildings ranging from 17 to 70 stories. He also served as assistant resident engineer for the College of Science at Sabah Al-Salem University in Kuwait.

He holds a degree in architecture from the University of Tennessee, Knoxville and has completed coursework in LEED AP BD+C for commercial buildings, Project Management Professional (PMP) training, and Registered Accessibility Specialist certification through the Texas Department of Licensing and Regulation. Traywick holds National Council of Architectural Registration Boards (NCARB) certification and is a member of the Saudi Council of Engineers.

Driven by passions for economic empowerment, education, environmental advocacy, and human rights, Traywick channels his energy into meaningful causes. When not working, he enjoys remodeling houses and real estate projects. A twin, he lives in Dallas with his wife, Jan, and their son, Jon.

With 43 years of expertise in pipeline design, facility management, and utility infrastructure, Seitz strengthens KAI 360 CS’s capabilities on Metropolitan St. Louis Sewer District (MSD) initiatives. His extensive experience will be instrumental in advancing critical projects, including the Lemay 3 Pump Station and Force Main development.

Before joining KAI, Seitz served as a project coordinator for Pacific Steel Group, where he developed procurement and cost control guidelines for a $600 million steel rebar mill. He played a key role in securing utility services—including power, gas, data, water and nitrogen—for the complex development.

Seitz holds a Bachelor of Science in Civil Engineering from Bradley University. In his free time, he enjoys the outdoors with his wife, Janet, along with their three grown children and six grandchildren. His hobbies include hunting, logging, developing wildlife habitats and handyman work.

With the addition of Traywick and Seitz, KAI 360 CS continues to strengthen its leadership team and deepen its capacity to manage complex, community-impacting projects across the country. Their combined experience and dedication to excellence will play a critical role in advancing KAI’s growth and delivering high-quality results for clients.

Avison Young promoted Sullivan Johnston to Senior Vice President in the firm’s Austin, Texas, office.

Johnston is a founding member of Avison Young’s Land, Development, and Industrial Advisory (LDI) team, where she represents a diverse range of clients, including institutional investors, private developers, corporate users, and landowners, in the acquisition and disposition of commercial properties and development parcels across Texas and the U.S. She leverages her background and experience to provide clients with strategic insight and hands-on guidance at every stage of the deal process.

Sullivan joined Avison Young in 2016 and is a graduate of the University of Texas at Austin.

Cheryl Huffman is a registered Landscape Architect and Urban Designer with extensive experience leading signature park planning, design, and implementation. She revels in bringing challenging projects to life. Notable Houston works include Trebly Park, Eastern Glades/Seymour Lieberman Trail, Trees for Houston Campus, Barbara Bush Literacy Plaza, and 20 SPARK Parks. In her new role, Cheryl will support upcoming projects in Memorial Park and Buffalo Bayou East, among other community initiatives.

Darren Conner has been named Dewberry’s chief operating officer (COO), where he will oversee business development and strategic planning for the firm’s 60 offices, which provide architecture; construction; engineering; environmental; geospatial, mapping, and survey; planning, consulting, and advisory; and technology services. Conner will also align Dewberry’s client management program to further serve the needs of its new and existing clients. He was appointed COO of Dewberry’s holding company.