Geosyntec’s Executive Leadership Team

Guided by experience, innovation, and integrity, our senior leaders help shape solutions that create lasting value.

  • Majdi Othman, a middle-aged man with short gray hair, glasses, and a trimmed goatee, smiles at the camera. He is wearing a navy blazer over a light blue checked shirt against a plain gray background.

    Majdi Othman, PhD, PE, F.ASCE

    CEO and President

    Majdi is a Senior Principal Engineer based in Georgia with more than 32 years of engineering experience focused on geotechnical, environmental, and civil engineering projects. Majdi is President and CEO of Geosyntec Consultants.

  • A woman wears a dark green top and looks directly at the camera with a neutral expression against a plain light background.

    Karen Kosiarek, PE

    Regional President for North America West

    Karen is a Senior Principal Engineer based in Colorado with more than 25 years of practice in site investigation, remediation (soil, groundwater, vapor), CERLCA RI/FS, brownfields and sediment sites. She is Regional President of our North America West Region. She currently focuses primarily on project strategy, regulatory negotiation and cost allocation.

  • A woman with straight brown hair wearing a brown top smiles at the camera against a plain gray background.

    Leslie Griffin, PE

    Regional President for North America East

    Leslie Griffin is a Senior Principal Civil Engineer based in Georgia with more than 20 years of experience focused on the design and construction of large, multi-disciplinary projects involving waste containment, civil and infrastructure design, and site remediation across the United States and in Africa. She is Regional President of our North America East Region.

  • A woman with shoulder-length brown hair and green eyes, wearing a cream-colored blouse, looks at the camera with a slight smile. The background is softly blurred.

    Susanne Bergquist

    Regional President for Europe, Middle East, and Australia

    Susanne Bergquist is a Senior Principal Environmental Consultant based in Sweden with more than 21 years of international experience focused on environmental due diligence, environmental strategic advising, and project management. Susanne is Regional President of our Europe, Middle East, and Australia Region.

  • A smiling bald man with a light beard and mustache wears a blue textured blazer over a white shirt, posing in front of a plain gray background.

    Evan Cox

    Chief Strategy Officer

    Evan Cox is a Senior Principal Remediation Scientist based in Ontario with more than 25 years of experience focused on managing and directing soil and groundwater remediation projects dealing with emerging and recalcitrant contaminants. Evan is the Chief Strategy Officer for Geosyntec Consultants.

  • A man with a shaved head and light skin is smiling gently. He is wearing a light blue collared shirt and a blue jacket. The background is plain and light-colored.

    Jonathan Doros

    Chief Financial Officer

    Jon Doros is Geosyntec’s Chief Financial Officer and is based in Texas. He is a seasoned corporate finance executive with extensive experience in financial operations, investor relations, financial planning and analysis, corporate development, and ventures.

  • Jennifer Plauché Brown

    Chief Human Resources Officer

    Jennifer Plauché Brown is Geosyntec’s Chief Human Resources Officer and is based in Louisiana. She is a senior human resources executive who leads the firm’s people strategy in support of enterprise growth, organizational effectiveness, and leadership continuity.

  • Jordan Rattray

    Chief Legal Officer

    Jordan Rattray is Geosyntec’s Chief Legal Officer. She is based in Michigan and brings more than 20 years of experience navigating an increasingly complex legal landscape within our growing international company, managing regulatory compliance, contracts reviews, and negotiations; handling risk management and conflict issues; and supporting operations within legal boundaries.