Castillo Engineering

Please join us in welcoming Levi Rivers to the Castillo Engineering team as the newest Water Resources Engineer!

Levi has gained experience as a Water Resources Engineer in Idaho, where he worked on modeling and design for various bridge projects. His background spans hydrologic and hydraulic (H&H) analysis, stormwater management, and regulatory compliance, providing a solid foundation in civil engineering and infrastructure design.

What drew Levi to Castillo was the interview process itself. He could tell right away that leadership was intentional about shaping the company’s culture and genuinely invested in the growth and development of its people, which made his decision easy.

Looking ahead, Levi is working toward earning his PE license while deepening his understanding of the H&H challenges unique to solar projects. He is excited to apply his hydraulic modeling expertise and passion for sustainable design to deliver strong outcomes for clients. Though he recently joined the team, he has already embraced the collaborative, open communication environment that makes tackling complex design challenges rewarding.

Outside of work, Levi loves spending time outdoors, running, skiing, and fishing. He also enjoys reading in his spare time.

Welcome to the team, Levi!

Please join us in welcoming Lan Brevelle to the Castillo Engineering team as our newest Senior Structural Engineer!

Lan holds a BS in Civil Engineering from Oklahoma State University and brings a wealth of structural engineering experience across multiple industries, where she developed a versatile, adaptable skill set across demanding environments. That cross-industry experience is something she looks forward to bringing to the Castillo team.

She’s excited for the opportunity to help build the structural engineering team from the ground up and contribute to Rick and Christopher’s vision for the company’s future.

Looking ahead, Lan hopes to lead the expansion of Castillo’s structural engineering capabilities by developing tools and processes that bring more services in-house. She is also passionate about mentoring the next generation of engineers and fostering a team culture built on shared expertise and problem-solving. Her ability to identify knowledge and service gaps (and finding creative ways to fill them) is something she genuinely enjoys about her work.

Outside of work, Lan enjoys spending time with family, watching soccer, traveling, and reading.

Welcome to the team, Lan!

Please join us in welcoming Dean Curtis to Castillo Engineering as an Electrical Engineer II!

Dean brings 3.5 years of experience in the renewable energy industry and a strong academic foundation. He earned a Master’s in Applied Physics from the University of Oregon and a Bachelor’s in Engineering Physics with a minor in Energy Engineering from CU Boulder.

Dean is excited to join the Castillo team because of the tremendous opportunity to grow his technical skills alongside a rapidly expanding company. His primary goals include earning his PE license and taking on greater ownership of projects, deepening his knowledge of renewable energy design and construction to deliver the highest-quality work for clients.

One of the unique strengths Dean brings to Castillo is his hands-on experience with Battery Energy Storage System (BESS) projects, which he looks forward to leveraging to help the team pursue new and exciting opportunities.

Outside of work, Dean enjoys cooking, traveling, and playing games with friends.

Welcome to the team, Dean!

Please join us in welcoming William Heidtmann to Castillo Engineering as an Electrical Engineer!

William brings a strong background in both engineering and renewable energy, with a Mechanical Engineering degree, a minor in Mathematics, a concentration in Energy Engineering, and a Graduate Certificate in Applied Energy from the University of North Carolina at Charlotte. His previous experience includes working on distribution and solar design projects.

William was excited to join Castillo to apply his electrical engineering knowledge to utility-scale projects nearing construction and real-world operation. As he continues to grow his career, he's looking forward to pursuing his PE license, expanding his technical expertise, and gaining experience across a wide range of solar projects.

Outside of work, William enjoys hiking, especially in the Blue Ridge Mountains, along with bowling and card games.

Welcome to the team, William!