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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.

Careers and RFPs

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 Staff

Management Services

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

Tayler Overschmidt
Director of Communications
Tayler.Overschmidt@denvergov.org
720-913-5033
Please contact Tayler Overschmidt for any media requests

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

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

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

Audit Services and Denver Labor Staff

Audit Services Division

Balnyte, Vilma
Audit Manager
vilma.balntye@denvergov.org
720-913-5079

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

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

Durant, Maria
Senior Auditor
maria.durant@denvergov.org
720-913-5077

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

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

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

Farol, Robert
Information Systems Audit Senior
robert.farol@denvergov.org
720-913-5078

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

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

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

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

Hancock, Dave
Information Systems Audit Senior
david.hancock@denvergov.org
720-913-5059

Hansen, Anna
Lead Auditor
anna.hansen@denvergov.org
720-913-5064

Houston, Melinda
Associate Auditor
Melinda.Houston@denvergov.org
720-913-5047

Jimroglou, Nick
Acting Information Systems Audit Manager
nicholas.jimroglou@denvergov.org
720-913-5074

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

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

Kholghy, Safa
Internal Audit Intern
Safa.Kholghy@denvergov.org
720-913-5092

Kietlinski, Natalia
Associate 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

Medrano, Sherard
Senior Auditor
Sherard.Medrano@denvergov.org

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

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

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

Nelson, Caroline
Internal Audit Intern
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

Puppa, Isabelle
Lead Auditor
Isabelle.Puppa@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
Internal Audit Intern
Summer.Sargent@denvergov.org

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

Scheich, Shannon
Senior Auditor
Shannon.Scheich@denvergov.org
720-913-5021

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

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

Teska, Ben
Senior Auditor
ben.teska@denvergov.org
720-913-5173

Thaw, Hannah
SeniorAuditor
H annah.Thaw@denvergov.org
720-913-5047

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

Ulrich, Peter
Information Technology Audit Manager
Peter.Ulrich@denvergov.org

Valenzuela, Valeria
HR Intern
Valeria.Valenzuela@denvergov.org

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

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
Labor Compliance Analyst
Krystal.Baroni@denvergov.org
720.913.5350

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

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

Carter, Carol
Staff Assistant
Carol.Carter@denvergov.org
720-913-5018 720-913-5035 fax

Castillo, Xavier
Human Resources Intern
Xavier.castillo@denvergov.org

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

Cota-Howlet, Jose
Labor Compliance Intern
Jose.Cota-Howlet@denvergov.org

Denis, Arielle
Legal Analyst
720-913-5036
Arielle.Denis@denvergov.org

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

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

Giron, Ava
Labor Compliance Technician
Ava.Giron@denvergov.org
720-913-5085

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

Herbert, Nyaomi
Labor Compliance Technician
Nyaomi.Herbert@denvergov.org

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

Landa, Jamie
Labor Compliance Technician
Jamie.Landa@denvergov.org

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

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

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

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

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

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

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

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

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

Probasco, Hilliard "Hill"
Labor Compliance Technician
Hilliard.Probasco@denvergov.org

Ramos, Christina
Labor Compliance Technician
Christina.Ramos@denvergov.org
720.913.5013

Reed, Allannah
Labor Compliance Technician
Allannah.Reed@denvergov.org

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

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

Tan, Iris
Labor Compliance Technician
Iris.Tan@denvergov.org

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

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

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

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

Witcher, Monique
Labor Compliance Technician
Monique.Witcher@denvergov.org

Communications Division

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

Clark, Kristen
Senior Communication and Reporting Specialist
Kristen.Clark@denvergov.org
720-913-5002

del Valle Ruiz, Sara
Community Engagement Specialist
Sara.delValleRuiz@denvergov.org
720-913-5073

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

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

Recent Office News

Strengthened water and sewer billing oversight protects residents

Published on April 04, 2024

DENVER – The city successfully put processes in place to reduce the likelihood it will overpay for city water and made sure it is using the best method for deciding how to bill residents for sewer services, according to a follow-up published today from Denver Auditor Timothy M. O’Brien, CPA.

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Denver Labor helps more people than ever because of new wage ordinance

Published on April 02, 2024

DENVER – Denver’s wage protections are some of the strongest and most effective in the United States, and Denver Labor’s results for the recently published 2023 reporting period show the benefits to the whole community.

Tagged as: , Auditor

Auditor’s Office wins national award for encampments report

Published on March 26, 2024

DENVER – The Denver Auditor’s Office is proud to have once again produced one of the best local government audits in the country. Denver Auditor Timothy M. O’Brien, CPA, is honored to accept a national award for his office’s audit work in 2023: this time, a Distinguished Knighton Award from the Association of Local Government Auditors for the “Homeless Encampments” audit.

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