Human Resources & Payroll Department Directory

  • If you are a University employee, please contact your respective representative at in new window .
  • For payroll and timeclock matters, please contact Ariana Helguera.
  • For recruiting, posting, onboarding and offboarding matters, please contact Jocelyn Walton.
  • For data entry/benefits, including retirees benefits, please contact Stephen Weissbart.
  • For HRIS, employee issues and urgent matters, please contact Bertha Leon.
  • For general inquiries, please contact Christian Camarena.

Bertha Leon

HR/Payroll Associate Director

Phone: 657.278.4120
Fax: 657.278.5491

Ariana Helguera

Payroll Manager

Phone: 657.278.4114
Fax: 657.278.5491

Jocelyn Walton

HR Specialist/Recruiter

jowalton@fullerton.eduOpens in new window

Phone: 657.278.4119
Fax: 657.278.5491

Stephen Weissbart

HR Administrator

sweissbart@fullerton.eduOpens in new window

Phone: 657.278.8091
Fax: 657.278.5491

Christian Camarena

HR Coordinator

Phone: 657.278.4117
Fax: 657.278.5491

Jenny Song

Payroll Technician

haesong@fullerton.eduOpens in new window

Phone: 657.278.8247
Fax: 657.278.5491

Maddie Nunez (PT)

HR Intern

zz-madnunez@fullerton.eduOpens in new window

Phone: 657.278.3415
Fax: 657.278.5491



The CSUF Auxiliary Services Corporation (ASC) is a non-profit public corporation that was incorporated in 1959 for the purpose of promoting and assisting the educational mission of Cal State Fullerton.