Meet
The Team
Sean O’Brien, AIA
CEO![Featured image for “Sean O’Brien, AIA”](https://obrienarch.com/wp-content/uploads/2023/04/Sean-OBrien-OBrien-Architects.jpg)
Jack O’Brien, AIA
Founder & Chairman![Featured image for “Jack O’Brien, AIA”](https://obrienarch.com/wp-content/uploads/2021/05/jack-obrien.jpg)
Josh Pollard
Chief Operating Officer![Featured image for “Josh Pollard”](https://obrienarch.com/wp-content/uploads/2023/07/Josh-Pollard-COO-OBrien-Architects-1-square.jpg)
Kathy Filbert
Chief Financial Officer![Featured image for “Kathy Filbert”](https://obrienarch.com/wp-content/uploads/2023/04/Kathy-Filbert-OBrien-Architects.jpg)
Robert Evans, AIA, LEED AP
President![Featured image for “Robert Evans, AIA, LEED AP”](https://obrienarch.com/wp-content/uploads/2023/04/Robert-Evans-AIA-OBrien-Architects.jpg)
Mick Granlund
Principal - Director of Planning / Business Development![Featured image for “Mick Granlund”](https://obrienarch.com/wp-content/uploads/2023/10/mick-granlund.jpg)
Ashley Acuff, RID
Principal - Director of Interior Architecture![Featured image for “Ashley Acuff, RID”](https://obrienarch.com/wp-content/uploads/2021/05/Ashley-Acuff-RID-Director-of-Interiors-OBrien-Architects-square.jpg)
Lorelei Mewhirter, AIA, LEED
Principal - Director of Industrial Architecture![Featured image for “Lorelei Mewhirter, AIA, LEED”](https://obrienarch.com/wp-content/uploads/2021/05/Lorelei-Mewhirter-AIA-Industrial-Studio-Leader.jpg)
Amador Saucedo, AIA
Principal - Director of Design![Featured image for “Amador Saucedo, AIA”](https://obrienarch.com/wp-content/uploads/2023/04/Amador-Saucedo-AIA-OBrien-Architects.jpg)
Phil Bolton
Director of Business Relations![Featured image for “Phil Bolton”](https://obrienarch.com/wp-content/uploads/2024/05/phil-bolton_director-of-business-relations.jpg)
Rey Castillo, AIA
Associate Principal - Multi Family Studio Leader![Featured image for “Rey Castillo, AIA”](https://obrienarch.com/wp-content/uploads/2023/04/Rey-Castillo-OBrien-Architects.jpg)
Stefan Haessig
Associate Principal - Planning Studio Leader![Featured image for “Stefan Haessig”](https://obrienarch.com/wp-content/uploads/2023/04/Stefan-Haessig-OBrien-Architects.jpg)
Steffen C. Staiger, AIA
Associate Principal - Construction Administration![Featured image for “Steffen C. Staiger, AIA”](https://obrienarch.com/wp-content/uploads/2021/05/steffen-staiger-associate-principal-construction-administration-square.jpg)
Billy Batac
Associate - Sr Project Manager![Featured image for “Billy Batac”](https://obrienarch.com/wp-content/uploads/2023/04/Billy-Batac-OBrien-Architects.jpg)
David Borja, AIA
Associate - Sr Project Manager![Featured image for “David Borja, AIA”](https://obrienarch.com/wp-content/uploads/2023/04/David-Borja-AIA-OBrien-Architects.jpg)
Marc Quintana
Associate - Storage Studio Leader![Featured image for “Marc Quintana”](https://obrienarch.com/wp-content/uploads/2023/04/Marc-Quintana-OBrien-Architects-scaled.jpg)
Andrew Ancona, RA
Project Manager![Featured image for “Andrew Ancona, RA”](https://obrienarch.com/wp-content/uploads/2023/11/andrew-ancona-ra-–-project-manager-square.jpg)
David Truong
Associate - Sr Project Manager![Featured image for “David Truong”](https://obrienarch.com/wp-content/uploads/2023/04/David-Truong-OBrien-Architects.jpg)
Raymond Kahl, RA
Senior Project Manager![Featured image for “Raymond Kahl, RA”](https://obrienarch.com/wp-content/uploads/2023/11/raymond-kahl-ra-–-senior-project-manager-square.jpg)
Geoffrey Brown
Project Designer![Featured image for “Geoffrey Brown”](https://obrienarch.com/wp-content/uploads/2023/04/Geoffrey-Brown-OBrien-Architects.jpg)
Jasmine Chávez
Project Manager![Featured image for “Jasmine Chávez”](https://obrienarch.com/wp-content/uploads/2023/04/Jasmine-Chavez-OBrien-Architects.jpg)
Robert Dibello
Designer![Featured image for “Robert Dibello”](https://obrienarch.com/wp-content/uploads/2023/04/Robert-Dibello-OBrien-Architects.jpg)
Adrian de Leon
Project Designer![Featured image for “Adrian de Leon”](https://obrienarch.com/wp-content/uploads/2023/04/Adrian-de-Leon-OBrien-Architects.jpg)
Halima Essary, RID
Project Manager![Featured image for “Halima Essary, RID”](https://obrienarch.com/wp-content/uploads/2023/11/halima-essary-team-captain-of-architecture-interiors-square.jpg)
Scott Engdahl
Project Captain![Featured image for “Scott Engdahl”](https://obrienarch.com/wp-content/uploads/2021/08/Scott-Engdahl-Project-Manager-OBrien-Architects-5-square.jpg)
Roxanna Gutierrez
Accounting Department![Featured image for “Roxanna Gutierrez”](https://obrienarch.com/wp-content/uploads/2021/08/Roxanna-Gutierrez-Receptionist-OBrien-Architects-square.jpg)
Matthew Hawiszczak
Project Captain![Featured image for “Matthew Hawiszczak”](https://obrienarch.com/wp-content/uploads/2023/04/Matthew-Hawiszczak-OBrien-Architects.jpg)
Daniel Hernandez
Project Coordinator![Featured image for “Daniel Hernandez”](https://obrienarch.com/wp-content/uploads/2023/04/Daniel-Hernandez-OBrien-Architects-.jpg)
Caitlin Huston, RID, NCIDQ, IIDA
Project Manager![Featured image for “Caitlin Huston, RID, NCIDQ, IIDA”](https://obrienarch.com/wp-content/uploads/2021/05/Caitlin-Huston-OBrien-Architects-2-square-e1688744709865.jpg)
Branden Jarka, RA
Project Manager![Featured image for “Branden Jarka, RA”](https://obrienarch.com/wp-content/uploads/2023/07/Branden-Jarka-Project-Manager-OBrien-Architects_1.jpg)
Joshua Medrano
Project Coordinator![Featured image for “Joshua Medrano”](https://obrienarch.com/wp-content/uploads/2021/08/Joshua-Medrano-Project-Coordinator-OBrien-Architects1-square.jpg)
Michael Mewhirter
Project Manager![Featured image for “Michael Mewhirter”](https://obrienarch.com/wp-content/uploads/2023/04/Michael-Mewhirter-OBrien-Architects.jpg)
Jacob Prado
Project Designer![Featured image for “Jacob Prado”](https://obrienarch.com/wp-content/uploads/2023/04/Jacob-Prado-OBrien-Architects.jpg)
Mario Ramos
Project Manager![Featured image for “Mario Ramos”](https://obrienarch.com/wp-content/uploads/2023/04/Mario-Ramos-OBrien-Architects-scaled.jpg)
Marianne Scheer
Project Designer![Featured image for “Marianne Scheer”](https://obrienarch.com/wp-content/uploads/2023/04/Marianne-Scheer-OBrien-Architects.jpg)
Velveth Simite
Project Captain![Featured image for “Velveth Simite”](https://obrienarch.com/wp-content/uploads/2023/07/Velveth-Simite-Project-Manager-OBrien-Architects_1.jpg)
Judith Smith, RA
Project Manager![Featured image for “Judith Smith, RA”](https://obrienarch.com/wp-content/uploads/2023/04/Judith-Smith-OBrien-Architects.jpg)
Hannah Soenksen
Project Coordinator![Featured image for “Hannah Soenksen”](https://obrienarch.com/wp-content/uploads/2023/07/Hannah-Soenksen-Project-Coordinator-OBrien-Architects_1.jpg)
Scott Speer
Project Designer![Featured image for “Scott Speer”](https://obrienarch.com/wp-content/uploads/2023/04/Scott-Speer-OBrien-Architects.jpg)
John Still
Project Coordinator![Featured image for “John Still”](https://obrienarch.com/wp-content/uploads/2023/07/John-Still-Project-Coordinator-OBrien-Architects_1.jpg)
Michael Stotts
Sr Project Manager![Featured image for “Michael Stotts”](https://obrienarch.com/wp-content/uploads/2023/04/Michael-Stotts-OBrien-Architects.jpg)
Johan Venter
Project Designer![Featured image for “Johan Venter”](https://obrienarch.com/wp-content/uploads/2023/04/Johan-Venter-OBrien-Architects.jpg)
Jourdan Whatley, RID
Project Manager![Featured image for “Jourdan Whatley, RID”](https://obrienarch.com/wp-content/uploads/2021/08/Jourdan-Neustadt-RID-IIDA-NCIDQ-Project-Manager-OBrien-Architects-square.jpg)
Nuala Winston
Accounting Department![Featured image for “Nuala Winston”](https://obrienarch.com/wp-content/uploads/2023/04/Nuala-Winston-OBrien-Architects.jpg)
Vidal Zuñiga
Project Coordinator![Featured image for “Vidal Zuñiga”](https://obrienarch.com/wp-content/uploads/2023/04/Vidal-Zuniga-OBrien-Architects.jpg)