Craig L. Christensen

SVP, CIO

Erin Leo

Treasury Manager

Ana Levosada

Project Engineer

Anthony Huang

Civil Engineer I

Derik Tran

Director of Project Delivery

Eva Manjarrez

Environmental Scientist III

Ye Hong

Architectural Historian

Elke Anne Malin

Environmental Program Manager

Collins Malubeni Chibuye

Field Environmental Tech

Amaad Butt

Automation and Controls Engineer

Marrion Gestat

Planner

Tamana Warzi

Human Resources Specialist

Kyle Matsumoto

Design Engineer, Water/Wastewater

Ryan Bazzi

Wastewater/PFAS Process Engineer Intern

Hope Davey

Industrial Hygiene Scientist

David Gins

Project Manager/ Stormwater Engineer

Linnea Muhtaseb

Project Engineer

Simon Ubhi

Program Manager

Saphire Lim

Structural Engineer

Ricky Garrard

Solutions Analyst

Michaela Sun

Director of Strategy & Innovation – Water Sector

Kristen Mardenborough

Junior Water Resources Engineer

Peter Skopek

Principal Engineer / Vice President

Anette Sandoval

Environmental Engineering Intern

Jodie Yu

Civil Engineer 2

Caroline Ward

System Engineer

Kristy Monji-Chung

Environmental Compliance Project Manager

Douglas Low

Director, Finance

James Dong

Senior Financial Analyst

Mark Saba

Wastewater Design Engineering Intern

Babak Abbasi

Project Engineer

Eric Arreola

Human Resource Manager

Sandy Lopez

Director Performance Management at Tetra Tech, Inc., Pasadena

Mikael Matossian

Energy Sector Manager

Donna Smith

Marketing Manager

Haseeb

Chief Business Applications Officer (CBAO)

Escee Lopez

Principal Archaeologist, Western and Pacific Regions

Jon A.

Director, International Solid Waste Services

Reily Rivera

Environmental Geologist

Andrew McLarty CEG

Project Geologist

Anthony Trujillo

Civil Engineer

Rawad Al Ayass

Field Services Manager

Ana Ericka Martin Jimenez M.P. E.

Clean Trucks Program Administrator c/o Tetra Tech

Jessica Kam

Air Quality Engineer

Audrey Urquidi

Office Manager

Alex Matos

Environmental Scientist

Joseph Fong

Growth Initiative Leader

Billyjack Jory

Environmental Scientist

Hanaa Isaac

Assistant Project Manager