About Us and Careers

Auditor's Office Executive Team in 2023.

Auditor O’Brien is proud of a skilled and dedicated staff, specialized in their fields of auditing, law, and communications.

Certified Staff: 41 members of staff hold advanced degrees, certifications or law degrees – including, but not limited to, Certified Public Accountants, Internal Auditors, Fraud Examiners, and Information System Auditors.
Advanced Technology: Our team utilizes the latest technology and efforts to maximize results and transparency.
Clear Communication: Auditor O'Brien promised open communication and accessibility during this campaign and the office is using multiple channels to extend the messaging and results of completed work.

Auditor Timothy M. O'Brien

Denver’s Auditor, Timothy M. O’Brien, CPA, has more than 40 years of auditing and accounting experience. Auditor O’Brien strives to bring greater clarity, transparency, and accountability to Denver’s City government for its residents.

Join our Team

We are committed to attract, recruit, and retain the highest quality people, and provide opportunities for professional growth and advancement. If you would like to join our team, please take a look at the current openings and requests for proposals.

Contact Our Office

Contact the Auditor's Office and its division Denver Labor for general questions, wage-specific complaints, and other specific comments or suggestions.

Management and Administration Staff

Management and Administration

Valerie Walling
Deputy Auditor
Valerie.Walling@denvergov.org
720-913-5059

Matthew Fritz-Mauer
Executive Director of Denver Labor
Matthew.Fritz-Mauer@denvergov.org
720-913-5018

Michael Brannen
Executive Director of Communications and Government Relations
michael.brannen@denvergov.org
720-548-8643
Please contact Michael Brannen for any media requests

Cyndi Lubrano
Business Manager
Cyndi.Lubrano@denvergov.org
720-913-5038

Ranea Taylor
Agency Human Resources Manager
Aubranea.Taylor@denvergov.org
720-913-5006

Luis Osorio
Prevailing Wage Administrator
Luis.Osorio@denvergov.org
720-913-5081

Amy Overzet
Executive Assistant III
Amy.Overzet@denvergov.org
720-913-5010

Audit Services and Denver Labor Staff

Audit Services Division

Burger, Heather
Audit Analytics Senior
Heather.Burger@denvergov.org
720-913-5103

Caleb, Todd
Associate Internal Auditor
Caleb.Todd@denvergov.org

Casalino, Katie
Lead Auditor
Katie.Casalino@denvergov.org
720-913-5201

Clay, Katherine
Senior Internal Auditor
Katherine.Clay@DenverGov.org

Dougherty, Ryan
Lead IS Auditor
Ryan.Dougherty@DenverGov.org.

Downes-Angus, Katie
Senior Internal Auditor
Katie.Downes-Angus@DenverGov.org

Edwards, Danielle
Senior Auditor
Danielle.Edwards@denvergov.org
720-913-5128

Emirkhanian, Daniel
Lead Auditor
Daniel.Emirkhanian@denvergov.org
720-913-5007

El Boukili, Sarah
Senior Auditor
Sarah.Elboukili@denvergov.org

Eppstein, Kharis
Audit Manager
kharis.eppstein@denvergov.org
720-913-5096

Faussone, Tyson
Lead Auditor
Tyson.Faussone@denvergov.org
720-913-5102

Finke, Darrell
Senior Auditor
Darrell.Finke@denvergov.org

Gomez, Juan Jr.
Lead Auditor
Juan.GomezJr@denvergov.org

Halvorson, Carl
Audit Manager
carl.halvorson@denvergov.org
720-913-5071

Hancock, Dave
Senior IS Auditor
david.hancock@denvergov.org
720-913-5059

Harris, Angela
Senior IS Auditor
Angela.Harris@DenverGov.org

Henik, Hilary
Senior Internal Auditor
Hilary.Henik@DenverGov.org

Irizarry, Juan
Information Systems Audit Manager
Juan.Irizarry@DenverGov.org

Jones, Shawn
Senior Auditor
Shawn.Jones@denvergov.org
720-913-5089

Jusu, Francis
Associate Auditor
Francis.Jusu@denvergov.org
720-913-5047

Kietlinski, Natalia
Senior Auditor
natalia.kietlinski@denvergov.org
720-913-5052

Mann, Juliane
Lead Auditor
Juliane.Mann@denvergov.org
720-913-5005

McCormack, Kristin
Audit Manager
Kristin.McCormack@denvergov.org
720-913-5101

McIntyre, Lisa
Senior Auditor
Lisa.Mcintyre@denvergov.org

Miller, Noah
Senior Auditor
Noah.Miller@denvergov.org

Montano, Sonia
Senior Audit Manager
sonia.montano@denvergov.org
720-913-5157

Monk, Jordon
Senior Auditor
Jordon.Monk@denvergov.org

Moore, Emily (Em)
Associate Auditor
Em.Moore@denvergov.org

Muñoz, Alexander
Senior Auditor
alexander.munoz@denvergov.org
720-913-5056

Nelson, Caroline
Associate Auditor
caroline.nelson@denvergov.org
720-913-5088

O’Conor, Daniel
Senior Auditor
Daniel.Oconor@denvergov.org
720-913-5072

Owens Gerber, Emily
Audit Manager
emily.owens@denvergov.org
720-913-5016

Pluid, Danielle
Senior Auditor
Danielle.Pluid@denvergov.org
720-913-5021

Purdy, Christopher
Audit Analytics Specialist
Christopher.Purdy@denvergov.org
720-913-5087

Rossmith, Jackson
Senior Auditor
jackson.rossmith@denvergov.org
720-913-5084

Samadi, June
Lead Auditor
June.Samadi@denvergov.org
720-913-5052

Sargent, Summer
Associate Auditor
Summer.Sargent@denvergov.org

Schafer, Patrick
Audit Senior Manager
patrick.schafer@denvergov.org
720-913-5020

Smiley, Kayley
Audit Analytics Senior
Kayley.Smiley@denvergov.org

Summers, Daniel
Audit Analytics Lead
daniel.summers@denvergov.org
720-913-5079

Thompson, Edyie
Executive Assistant III
edyie.thompson@denvergov.org
720-913-5029

Todd, Caleb
Associate Auditor
Caleb.Todd@denvergov.org

Vakili, Simon
Lead Auditor
Simon.Vakili@denvergov.org
720.913.5028

Walthall, Kiara
Internal Audit Intern
Kiara.Walthall@DenverGov.org

Wilson, Chris
Audit Analytics Manager
christopher.wilson@denvergov.org
720-913-5061

Wiseman, Dawn
Audit Director
dawn.wiseman@denvergov.org
720-913-5069

Wysong, Shaun
Audit Manager
shaun.wysong@denvergov.org
720-913-5094

Denver Labor Division

Baroni, Krystal
Associate Labor Compliance Analyst
Krystal.Baroni@denvergov.org
720.913.5350

Borchers, Tyler
Associate Labor Compliance Analyst
Tyler.Borchers@denvergov.org

Borquez, Matthew
Lead Labor Compliance Analyst
Matthew.Borquez@denvergov.org
720-913-5082

Carter, Carol
Staff Assistant – On Call
Carol.Carter@denvergov.org

Cota-Howlet, Joel
Lead Labor Compliance Analyst
Joel.Cota-Howlet@denvergov.org
720-913-5022

Cota-Howlet, Jose
Staff Labor Compliance Analyst
Jose.Cota-Howlet@denvergov.org

Digiorgio, John
Labor Compliance Analyst
John.Digiorgio@denvergov.org
720-913-5048

Fraunfelter, Natalie
Associate Labor Compliance Analyst
Natalie.Fraunfelter@denvergov.org
720-913-5004

Gomez, Nydia
Labor Compliance Technician
Nydia.Gomez@DenverGov.org

Gongón, Rafael
Director, Denver Labor
Rafael.Gongon@denvergov.org
720-913-5017

Kreckman, Abby
Labor Compliance Supervisor
Abby.Kreckman@denvergov.org
720-913-5037

Landa, Jamie
Associate Labor Compliance Analyst
Jamie.Landa@denvergov.org

Lopez, Rudy
Labor Compliance Supervisor
Rudy.Lopez@denvergov.org
720-913-5082

López, Sandra
Lead Labor Compliance Analyst
Sandra.Lopez@denvergov.org
720-913-5104

Luxon, Margaret
Lead Labor Compliance Analyst
Margaret.Baker@denvergov.org
720-913-5104

Madlock, Jerry
Labor Compliance Technician
Jerry.Madlock@DenverGov.org

McKeon Eldred, Kandice
Labor Compliance Supervisor
Kandice.McKeon@denvergov.org
720-913-5009

McLeod, Liliana
Labor Compliance Technician
Liliana.McLeod@denvergov.org

Madlock, Jasmine
Associate Labor Compliance Analyst
Jasmine.Madlock@denvergov.org
720-913-5034

Moore, Jenny
Administrator II
Jenny.Moore@DenverGov.org

Nuñez, Hamilton
Labor Compliance Technician
Hamilton.nunez@denvergov.org

Nuñez, Lizeth
Labor Compliance Analyst
NancyLizeth.Nunez@denvergov.org
720-913-5085

Pereles de Leon, Jose
Staff Labor Compliance Analyst
Jose.PerelesDeLeon@denvergov.org

Perez, Sandra
Staff Labor Compliance Analyst
Sandra.Perez@denvergov.org

Pitts, Dacia
Staff Assistant
Dacia.Pitts@denvergov.org
720-913-5018

Ramos, Christina
Associate Labor Compliance Analyst
Christina.Ramos@denvergov.org
720.913.5013

Rubio, Chris
Lead Labor Compliance Analyst
Christopher.Rubio@denvergov.org
720-913-5075

Shea, Casey
Policy Analyst
Casey.Shea@DenverGov.org

Stolba, Brandon
Associate Labor Compliance Analyst
Brandon.Stolba@denvergov.org
720-913-5095

Tan, Iris
Associate Labor Compliance Analyst
Iris.Tan@denvergov.org

Trevino, Karla
Senior Management Analyst
Karla.Trevino@denvergov.org
720-913-5040

Utsey, Faythe
Labor Compliance Technician
Faythe.Utsey@denvergov.org

Van Der Like, Anna
Policy Analyst Administrator
Anna.VanDerLike@denvergov.org

Vera-Totten, Verónica
Lead Labor Compliance Analyst
Veronica.Totten@denvergov.org
720-913-1548

Wat, Chris
Associate Labor Compliance Analyst
christopher.wat@denvergov.org
303-342-4828

Weatherspoon, Michael
Staff Labor Compliance Analyst
Michael.Weatherspoon@denvergov.org

Witcher, Monique
Associate Labor Compliance Analyst
Monique.Witcher@denvergov.org

Communications Division

Arnaz, Rocío
Marketing and Communications Associate
Rocio.Arnaz@denvergov.org

del Valle Ruiz, Sara
Senior Marketing and Communications Specialist
Sara.delValleRuiz@denvergov.org
720-913-5073

Neumann, Jeff
Graphics and Visual Information Specialist
Jeffrey.Neumann@denvergov.org
720-913-5053

Pavlou, Stelios
Senior Communication and Reporting Specialist
Stelios.Pavlou@denvergov.org
720-913-5164

Troutman, Manda
Communications and Reporting Specialist
Manda.Troutman@denvergov.org

For media requests, please contact Michael Brannen (Michael.Brannen@denvergov.org or 720-548-8643) or email Auditor@DenverGov.org).

Recent Office News

Auditor asks: “What should we look into next?”

Published on June 09, 2026

DENVER – Throughout June, the Denver Auditor’s Office is inviting residents, businesses, and other community members across the city to help answer one important question: What should we look into next for future audits?

Tagged as: , Auditor

Residential permitting process improved after audit recommendations

Published on June 04, 2026

DENVER – The residential permitting experience has improved with the city addressing several process issues, according to a follow-up audit report from Denver Auditor Timothy M. O’Brien, CPA.

Tagged as: , Auditor

Denver Labor committed to strip club workers' labor protections

Published on June 02, 2026

DENVER – On International Sex Workers Day, June 2, Denver Labor is reaffirming that all workers in Denver deserve the full wages to which they are legally entitled and protection from retaliation when asserting their rights, regardless of industry.

Tagged as: , Auditor