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PASSIONATE - INNOVATIVE - RESPONSIVE

For more than 15 years, our firm’s philosophy has been simple, exceptional buildings are crafted by engineers who are as dedicated to collaboration as they are to groundbreaking design. We design structures based on open and active collaboration among the entire project team.

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Why We Stand Out

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We are engineers who prioritize communication. By engaging early and frequently with architects, contractors, building owners, and fellow engineers, we develop structural solutions that enhance overall project performance. Our goal is to navigate each structural option with our clients and stakeholders, to ensure decisions align with the project's vision and objective.

Meet Our Senior Engineers

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Ignasius Seilie, PE., SE., F SEI.

Principal - Partner

If you've ever heard the roar of the 12th man at CenturyLink Field or stood up for the seventh inning stretch at Safeco, you've experienced the handiwork of Ignasius Seilie. Formerly, a lead structural engineer at MKA, Ignasius was responsible for designing the Seahawks and Mariners' stadiums roof structures, as well as other prominent global projects. Now at Integrated Design Engineers, he brings over 30 years of expertise to every project, big or small, public or private.

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Miroslav Doytchev, PE.

Principal 

With a career spanning the globe, Miroslav Doytchev has managed complex structural projects in multiple languages including Bulgarian, German, English and Russian. At Integrated Design Engineers, he leads our public-sector projects, such as the award-winning Seattle Public Utilities North Transfer Station, which garnered the American Institute of Steel Construction People’s Choice Award for its innovative use of structural steel.​

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