Explore Otak’s Offices

Meet Our Team Leads

Oregon SW Washington

Construction Management & Inspection
“Problem solving and tangible results that can improve people’s lives make this my ideal line of work.”

Mike Williams

Manager of Construction Management & Inspection, Oregon & SW Washington

“Otak has always provided me with the opportunity to chart my own course and surround myself with amazing, talented, and interesting people.”

Kevin Timmins

Director of Water & Natural Resources

Planning & Landscape Architecture
“My job allows me to blend my passions for building community and healthy natural environments.”

David Sacamano


Manager of Planning & Landscape Architecture, Oregon & SW Washington

PM/CM & Owner’s Representation
“Completing a challenging project where the owner appreciates the hard work our team invests is what I enjoy most about project management.”

Doug Garland

Director of PMCM

Structural Engineering
“The best part of my job is seeing needed infrastructure (especially bridges) get designed, permitted, and built.”

Doug Sarkkinen

Director of Bridges & Structures

Puget Sound

Regional Director & Engineering Lead

Nico Vanderhorst

Regional Director, Puget Sound

“It’s important that we make sustainability a priority, starting with staff training that is carried forward and reflected in our daily business practices and projects.”

Jennifer Goldsmith



Professional Registrations

Licensed Geologist: WA Project Management Professional (PMP)
Planning & Landscape Architecture
“I enjoy planning at various scales and understanding how people interact with spaces and environments to ultimately improve those experiences.”

Mandi Roberts


Director of Planning & Landscape Architecture

Project Controls
“I love meeting new people and building relationships. ”

Walter Tarr

Manager of Project Controls

Structural Engineering
“The structural group touches a lot of projects and our role in each of them can vary greatly… I think one thing I do well is keeping a lot of tasks moving at the same time.”

Bob Doherty


Senior Project Manager


Regional Director
“Having a calm presence during chaotic times is a fundamental element to a successful outcome.”

Henry Alaman

Regional Director, Rocky Mountain Region

“Working at Otak allows me to experience interesting, exciting projects while furthering my professional and personal development. ”

Tracy Emmanuel

Manager of Water & Natural Resources, Colorado

Transportation Engineering
“An ability to see alternate solutions and innovative approaches helps me create stronger communities.”

Rick Belden


Practice Area Leader