Our people

Meet the team

Design, engineering, and construction under one roof — the same faces from your first meeting to the final walkthrough.

Who we are

Built on experience

We combine field-tested construction know-how with licensed engineering and thoughtful design — so your project moves forward with fewer handoffs and clearer communication.

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Strider Fountaine

Project Manager

Strider Fountaine started working in construction when he was 15 years old, gaining hands-on experience on residential and light commercial projects. He graduated from BYU in 2026 with a BS in Construction Management, where he has focused on integrating field operations with project planning and delivery. During his time in school, Strider has served as a project manager with Platypus Design and Construction, working on home builds, residential add-ons, and commercial tenant improvements. He enjoys the construction process and takes pride in seeing projects develop from initial concept through final completion.

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Jeff Castillo, EIT

Engineer/Designer

Jeff Castillo graduated from BYU-Idaho with a BS in Civil Engineering with an emphasis in Structural Engineering. During his academic career, he developed a vast knowledge of structural analysis and material behavior which he uses in the design of safe and efficient building systems. Jeff enjoys the structural design process and values the problem solving that comes with each project. He takes pride in creating practical solutions that support both the design team's vision and the client's needs. He is motivated by the opportunity to contribute to projects from early design through construction and enjoys turning concepts into finished products. Jeff's motto is to always listen to the client and work with the contractor - never becoming an enemy. There is never only one solution.

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Alejandra Ramirez

Drafter

Alejandra Ramirez graduated from BYU-Idaho with a Bachelor's Degree in Virtual Design and Construction in December 2023. Since then she has always worked in the construction and design field, focusing on residential drafting but growing her experience in the commercial field. Alejandra has helped with the improvement and standardization of our projects' digital structure, bringing to Platypus Design and Construction her knowledge in CAD and BIM. She is responsible for providing the quality designs and models for each client.

Want to work with us?

Tell us about your project — we will connect you with the right people from day one.

What Our Clients Say

Real Projects. Real People.
Real Results.

We let our work — and our clients — speak for us. Here's what homeowners and business owners have to say about working with Platypus Design & Construction.

"I am more than satisfied with the excellent work Platypus Design and Construction recently did for us. After a windstorm blew down a portion of our vinyl fence, he not only repaired the fence but saw what needed to be done to secure it so it would withstand future storms. He performed the work quickly, efficiently, and skillfully. The result was excellent and the cost was reasonable. We also appreciate the clarity and friendliness of all his communications and interactions with us. Overall, he did a superb job, even exceeding our expectations."
Bruce Y. Fence Repair
"McKay and his team have done multiple TI buildout projects for me and my Scenthound locations. They have been great to work with through everything to help me get a mix of great pricing, service, and overall product delivery. They are honest with their work and will ensure they take care of you as their client. Further, being able to use them for both design drawing, engineering, and the project buildout and management has saved me tens of thousands of dollars and weeks of time during my buildouts to have it all done with them in house. Platypus will continue to be my go-to for all my future commercial construction needs."
Spencer S. Commercial Build-Out
"We had an outstanding experience working with McKay Harper and Platypus Construction on a garage addition and a custom pergola over our patio. From the beginning, McKay demonstrated a high level of craftsmanship and attention to detail - he was able to match the existing architecture of our home seamlessly, to the point that the addition looks like it has always been there. It was a unique design challenge, and McKay used thoughtful engineering to create a beautiful freestanding structure that feels both solid and elegant. His pricing was very fair, and we would give McKay and Platypus Construction our highest recommendation and would absolutely work with him again."
Matt W. Garage Addition & Pergola

Ready to become our next success story?

Join the growing list of homeowners and businesses who chose one team for design, engineering, and construction.

Start Your Project
Get In Touch

Let's Build Something
Together.

Whether you're planning a custom home, a commercial build-out, or just have questions — we'd love to hear from you. Tell us about your project and we'll reach out within one business day.

Licensed In Utah · Idaho · Arizona
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Utah (385) 314-4443