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    Meet Our Team Leads

    Oregon SW Washington

    Regional Director
    “I aim to clear the way for folks to do their best work, so we leave with a sense of accomplishment, every day.”

    Jon Yamashita

    Regional Director, Oregon & SW Washington

    Architecture
    “Contributing to the built environment has always been my passion.”

    Casey McKenna

    Business Unit Leader

    Professional Registrations

    Registered Architect (RA): Arizona
    Environmental
    “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

    PLA, LEED AP

    Manager of Planning & Landscape Architecture, Oregon & SW Washington

    PM/CM & Owner’s Representative
    “I am inspired by the entrepreneurial, ‘can do’ drive that unifies every individual I’ve met at Otak. We actively pursue ‘better’ whenever possible.”

    Sarah Oaks

    Director of Project & Construction Management

    Stormwater Planning
    “I like working at Otak because my projects bring me in contact with stormwater managers throughout the Pacific Northwest.”

    Trista Kobluskie

    LID

    Group Leader

    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

    Survey & Mapping
    “Being responsive to clients is essential to ensuring projects are completed efficiently and accurately.”

    Sue Tsoi

    Business Unit Leader of Survey

    Transportation
    “I advocate for safe and resilient transportation access for all modes and mobilities.”

    Amanda Owings

    Manager of Transportation and Infrastructure, Oregon & SW Washington

    Puget Sound

    Regional Director & Engineering Lead

    Nico Vanderhorst

    Interim President, Board Member & Regional Director, Puget Sound

    Environmental
    “I enjoy working for an employer that has cultivated a culture which encourages employees to think big and to pursue our dreams.”

    Russell Gaston

    Sr. Technical Advisor

    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

    PLA, AICP, LID

    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

    PE

    Business Unit Leader of Bridges & Structures

    Colorado

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

    Henry Alaman

    Regional Director, Colorado

    Active Transportation Group Lead
    “When I can see a constructed project in Google Earth, I can see that I have literally changed the world.”

    Scott Belonger

    Senior Project Manager

    Architecture
    “I love the precision of architecture as a creative field.”

    Dan Kessler

    Director of Architecture

    Professional Registrations

    Registered Architect (RA): Arizona | Colorado | Montana | Oklahoma | Utah
    Construction Management & Inspection

    Patrick Pease

    Business Unit Leader of CMI

    Environmental
    “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

    Planning & Landscape Architecture
    “There is a vibrant collaboration among my colleagues and when working closely with clients, this leads to successful projects we can all be proud of.”

    Cliff Lind

    PLA, LEED AP

    Business Unit Leader of Planning & LA

    Stormwater Planning
    “I’ve always been fascinated by how water moved and how that could be manipulated, especially in urban design where stormwater can be incorporated as an amenity.”

    Amy Murdick

    PE, PLA

    Stormwater Group Leader

    Structural Engineering
    “I enjoy working at Otak because I get to be involved with unique, challenging projects that enhance my community and the places where we live, work, and play.”

    David Graff

    Business Unit Leader of Bridges & Structures

    Transportation
    “We think outside the box, pay close attention to aesthetics, and come up with cool project concepts because we love what we do.”

    Kevin Dooley

    Business Unit Leader of Transportation & Infrastructure