Senior Public Health Investigator

  • Orange County, CA
  • Orange County, California
  • Nov 28, 2021
Full Time Criminology and Forensics Public Health
  • Salary: $56,596.80 - $76,273.60 Annually USD

Job Description

Senior Public Health Investigator

In addition to performance-based merit increases, this position is scheduled to receive salary range increases on the following dates:

Effective July 1, 2022 - 3.50% increase

Salary may be negotiable within the range listed above, based on position requirements and successful candidate's qualifications, subject to appropriate authorization.

This recruitment is open to the public for a minimum of five (5) business days and will remain open on a continuous basis until 11:59 p.m. (PST) on the day the needs of the County are met. Applicants are encouraged to apply immediately.

This recruitment is being held to establish an Open eligible list to fill current and future Senior Public Health Investigator vacancies. This recruitment may also be used to fill positions in similar and/or lower classifications throughout the County of Orange.

The County of Orange is a regional service provider and planning agency whose core businesses include public safety, public health, environmental protection, regional planning, public assistance, social services and aviation.

Health Care Agency (HCA) is a dynamic organization dedicated to creating and supporting an environment that promotes the achievement of optimal individual, family and community health. Under the leadership of the Agency Director, a new and dynamic executive team with an organizational structure comprised of seven (7) service areas - Administrative and Financial, Strategy and Special Projects, Behavioral Health, Correctional Health, Office of Care Coordination, Medical Health and Public Health - is committed to meeting the health needs of the diverse Orange County community.

Through assessment, policy development and assurance, Public Health Services provides a wide range of services aimed at reducing death and disability by reducing the transmission of communicable diseases, preventing and lessening the impact of chronic diseases, and ensuring healthy and safe environments.

The Senior Public Health Investigator is responsible for investigating and reporting incidence of HIV and Sexually Transmitted Infections (STI's) to facilitate and understand how we can effectively end the HIV epidemic in Orange County by improving prevention, treatment, and care programs through a data-to-care model and culturally responsive and timely care. The incumbent will follow up with complex cases of high acuity patients living with HIV, and individuals diagnosed with STI's to assure proper care has been given in addition to locating partners. The incumbent supports local providers to improve best clinical practices in alignment with public health recommendations and to collaborate with providers on the prevention, diagnosis, and treatment of communicable diseases. This position performs program quality-assurance measures, and serves as a mentoring and training role to Public Health Investigator Trainees and Public Health Investigators. In addition, in absence of the supervisor, the incumbent may be assigned as a designated back-up. Some assignments may work in the Orange County jail and will be required to successfully pass a background investigation with the Orange County Sheriff's Department. The incumbent may be required to perform the functions of the lower level class in this series.

The ideal candidate will possess extensive professional work experience and knowledge in the following core competencies:

HIV & STI Knowledge | Public Health Surveillance Experience
  • Possessing knowledge of diagnostic tests for communicable diseases; methods of transmission, symptoms, etiology, diagnosis, development, and treatment of communicable diseases; medical terminology and corresponding terminology used by clinical researchers, providers, and the general public
  • Performing contact tracing and gathering and analyzing data to identify outbreaks
  • Techniques and methods of investigative interviewing; health education techniques regarding communicable diseases
  • Working with online reporting and data systems {e.g. California Reportable Disease Information Exchange (CalREDIE), Local Evaluation Online (LEO), AIDS Regional Information and Evaluation System (ARIES) and surveillance
  • Utilizing social media and virtual technology (e.g. dating websites, Grindr, Jack'd, Scruff, etc.) to facilitate public health investigations and surveillance
  • Prioritizing and managing a workload that includes a caseload of clients

Supervision | Leadership
  • Mentoring, training and providing technical guidance to a unit of Public Health Investigators
  • Conducting quality assurance activities for a unit of Public Health Investigators
  • Providing strong leadership to team/staff by creating a productive work environment and facilitating and demonstrating team work and cooperation
Relationship Building | Interpersonal Skills
  • Building collaborative partnerships with private and public healthcare facilities
  • Establishing a strong trust and rapport with clients to enhance disease intervention and prevention efforts
  • Establishing effective working relationships with management, employees, employee representatives and the public representing diverse cultures and background
  • Treating County employees, representative of outside agencies and members of the public with courtesy and respect
  • Assessing the customer's immediate needs and ensuring customer's receipt of needed services through personal service or making appropriate referral
  • Exercising appropriate judgment in answering questions and releasing information; analyzing and projecting consequences of decisions and/or recommendations.
  • Communicating effectively with a variety of individuals representing diverse cultures and backgrounds and function calmly in situations which require a high degree of sensitivity, tact and diplomacy, i.e., gender-diverse, sexual diverse, street-involved/homeless, and substance using individuals.
  • Providing responsive, high quality service to County employees, representatives of outside agencies and members of the public by providing accurate, complete and up-to-date information, in a courteous, efficient and timely manner
Oral | Written Communication Skills
  • Conducting investigative interviewing in both office and field settings
  • Providing counseling on communicable disease prevention and control within specific public health areas
  • Communicating tactfully and effectively orally and in writing with organizations, individuals in crisis; and, persons from varying cultural, ethnic and educational backgrounds of varying sexual preferences
  • Preparing detailed case write-ups and meticulous reporting; compiling statistics, conducting research, and updating records and reports

Click here to learn more about the minimum qualifications for the Senior Public Health Investigator classification as well as the physical and mental requirements and the environmental and working conditions.

Human Resource Services (HRS) will screen all application materials to identify qualified applicants. After screening, qualified applicants will be referred to the next step and notified of all further procedures applicable to their status in the competition.

Application Screening (Refer/Non-Refer)

Applications and supplemental responses will be screened for qualifications that are highly desirable and most needed to successfully perform the duties of this job. Only those applications exhibiting qualifications as listed in the job bulletin will be referred to the next step.

Structured Oral Interview | Oral Exam (Weighted 100%)

Candidates will be interviewed and rated by an oral interview panel of job knowledge experts. Each candidate's rating will be based on responses to a series of structured questions designed to elicit the candidate's qualifications for the job.

Based on the Department's needs, the selection procedures listed above may be modified. All candidates will be notified of any changes in the selection procedure.

Eligible List

Once the assessments have been completed, HRS will establish an eligible list of candidates. Candidates placed on the eligible list may be referred to a selection interview to be considered for present and future vacancies.

Veterans Employment Preference Policy (VEPP)
The County is committed to providing a mechanism to give preferential consideration in the employment process to veterans and their eligible spouses and will provide eligible participants the opportunity to receive interviews in the selection process for employment and paid internship openings. Please click here t o review the policy.
Please see below for important information regarding COVID 19 related requirements.

The COVID-19 pandemic continues to evolve and laws, regulations, and policies regarding COVID-19 are subject to change. The County of Orange is required to comply with any State or County Public Health Orders which may apply as follows:
  • Workers who provide services in certain Medical or High-Risk Settings, may be required to provide proof of full vaccination from COVID-19 or to wear a mask and undergo weekly COVID-19 testing .
  • Workers who provide services in certain Health Care Facilities or correctional facility or detention center where health care is provided, may be required to provide proof of vaccination . (Workers may be exempt from this requirement based on religious beliefs or a qualifying medical reason; however, if exempted worker will be required to mask and undergo weekly COVID-19 testing.)
The position for which you are applying may be required to adhere to any applicable State or County Order. You will receive notification of any requirement as it applies to a position.

Email is the primary form of notification during the recruitment process. Please ensure your correct email address is included in our application and use only one email account.

NOTE: User accounts are established for one person only and should not be shared with another person. Multiple applications with multiple users may jeopardize your status in the recruitment process for any positions for which you apply.

Candidates will be notified regarding their status as the recruitment proceeds via email through the site. Please check your email folders, including spam/junk folders, and/or accept emails ending with "" and "" If your email address should change, please update your profile at

FREQUENTLY ASKED QUESTIONS: Click here for additional Frequently Asked Questions.

For specific information pertaining to this recruitment, please contact Keren Duran at (714) 834-5292 or


Orange County, as an equal employment opportunity employer, encourages applicants from diverse backgrounds to apply.

Closing Date/Time:

Job Address

Orange County, California United States View Map