Jeff Ambrosia
Owner and Principal


With decades of experience in multi-disciplinary collaboration, design development, and creative problem solving, Jeff brings a vast well of knowledge to Yamasaki Landscape Architecture.  He has gained fundamental "hands-on" experience through both in landscape architecture design and construction. His experience has fostered an acute attention to detail and a deep understanding of all phases of a project from conceptual design through construction. 

When Jeff's not busy with work and community projects, he enjoys camping and boating with his family. Look for him at the local early-morning masters swim, one of our local golf courses, or out on the trail with his dog. 

Bachelor of Landscape Architecture, Cal Poly San Luis Obispo

California Landscape Architect #4057

Nevada Landscape Architect #898

Certified Landscape Irrigation Auditor

Rotary Club of Auburn - Past President

Boys and Girls Club of Placer County - Board Member, Past President

Member, ASLA Sierra Chapter

LEED Accredited Professional

Theresa Zaro
Landscape Architect


Theresa's 15 years of experience span the breadth of landscape architecture; from backyard design/build gardens to multi-acre municipal parks; from conceptual brainstorming exercises to construction administration. Dedication to a project's success and pursuit of our client's goals are qualities she brings to every job - made achievable by clear communication, accessibility, and an organized and thoughtful approach to each unique project.

When she's not at work, you can find her hiking and biking the local trails, wading at the Confluence, sketching, or puttering around the veggie garden with her family. 

Bachelor of Landscape Architecture, Cal Poly San Luis Obispo

Master of Landscape Architecture, UC Berkeley

California Landscape Architect #5124

Treasurer, ASLA Sierra Chapter

LEED Accredited Professional


Brian Pantiga
Landscape Architect


Over the course of his career, Brian has contributed to a wide range of projects including those in the public sector, residential sub-division planning, school and playground modernizations, boulevard master planning, park planning, airport modernization and waterfront renovations. He works closely with clients, tailoring the design specifically to their needs while meeting the requirements of the local municipalities to produce both functional and aesthetic projects. 

Brian is a dedicated road cyclist and soccer enthusiast. You can find him at the Republic game with his family, riding the American River Parkway, or shredding the slopes on his snowboard. 

Bachelor of Landscape Architecture, Cal Poly San Luis Obispo

California Landscape Architect #3908

Member, ASLA Sierra Chapter


Cameron McCamy
Landscape Designer


Cameron graduated from Colorado State University and joined Yamasaki Landscape Architecture in 2017. During his studies he focused on computer modeling and rendering, urban and recreational planning, and garden design. Cameron is excited to bring his skills from school and previous work experience to current projects.

Cameron is an avid volleyball player, and frustrated fisherman. He enjoys spending time exploring the outdoors, and listening to live music.

  • Bachelor of Science in Landscape Architecture, Colorado State University








Open Positions

We do not currently have any open positions, but we're always happy to meet Landscape Architects who are new to our community...drop us a line!