Disease Investigation Specialist I/II in Redding, California at County of Shasta

Salary: $58,404.00 - $80,592.00 Annually
Department: Health & Human Services Agency - Public Health
Opening Date: 07/10/2026
Closing Date: 07/16/26
Location: Redding, 96007, 96073, 96003, 96002, 96001, CA
Job Number: 1186-7_HHSA_PH070226

Description:

THE CURRENT VACANCY IS IN THE

HEALTH AND HUMAN SERVICES AGENCY - PUBLIC HEALTH BRANCH

ORAL EXAM IS TENTATIVELY SCHEDULED FOR JULY 2026

SEE “SPECIAL REQUIREMENTS” SECTION REGARDING

REQUIRED CERTIFICATIONS AND POSSESSION

OF A VALID DRIVER’S LICENSE

RESPONSES TO SUPPLEMENTAL QUESTIONS REQUIRED

FINAL FILING DATE: JULY 16, 2026, AT 12:00 PM

SALARY INFORMATION

Disease Investigation Specialist I: $4,867.00 – $6,212.00 APPROXIMATE MONTHLY* /$28.08 – $35.83 APPROXIMATE HOURLY*

Disease Investigation Specialist I: $5,262.00 – $6,716.00 APPROXIMATE MONTHLY* / $30.36 – $38.75 APPROXIMATE HOURLY*

This position is in the UPEC – General bargaining unit. Please refer to the applicable bargaining unit labor agreement (Memorandum of Understanding) for potential future salary increases: Shasta County Labor Agreements

ABOUT SHASTA COUNTY

Shasta County offers all the amenities of the big city while retaining a comfortable small-town atmosphere. With its natural beauty, affordable housing, excellent educational system, abundance of recreational opportunities, and excellent quality of life, Shasta County is a great place to live, work, and raise a family.

ABOUT THE DEPARTMENT

Health and Human Services Agency

The Shasta County Health and Human Services Agency (HHSA) partners with communities to protect and improve the health and well-being of Shasta County residents. Established in 2006, the HHSA is organized into

four branches: Behavioral Health & Social Services, Public Health, Economic Mobility, with a centralized Administration Services. The HHSA promotes optimal health for all. The frail, the abused, the mentally ill and those without resources look to the HHSA for services and resources to meet their basic needs, and to protect their health and safety. This transformation improves efficiency, avoids unnecessary duplication of effort, encourages collaboration among programs and organizes the HHSA’s services to be more responsive to the needs of the public.

The Public Health Branch focuses on community-wide prevention of communicable disease, chronic disease, injury, substance abuse, family violence, and lead poisoning. Public Health helps the community develop policies and support community environments that encourage healthy behaviors. It promotes nutrition and physical activity, healthy aging, worksite wellness and healthy communities. Public Health is also where the HHSA’s emergency response unit is headquartered, and its laboratory provides testing services for Shasta and numerous other Northern California counties.

ABOUT THE POSITION

Disease Investigation Specialist I/II:

A Disease Investigation Specialist is a public health professional with applied expertise in the following areas: client centered interviews; collection of enhanced surveillance and community assessment data; partner services to include contact tracing; field investigation and other field-based activities, including specimen collection, directly observed therapy, community outreach, collaboration with medical providers, and navigation of health care systems to ensure patient evaluation and treatment. Relevant program areas may include tuberculosis, Human Immunodeficiency Virus (HIV), Sexually Transmitted Diseases (STDs) and other communicable disease, outbreak investigation, and emergency preparedness and response.

DISTINGUISHING CHARACTERISTICS

DISEASE INVESTIGATION SPECIALIST I:

The Disease Investigation Specialist I is the entry level position in the series. Under close supervision, incumbents are given detailed instruction in the performance of routine tasks that are more structured and repetitive than the tasks assigned at the journey level. The Disease Investigation Specialist I differs from the Disease Investigation Specialist II in that the Disease Investigation Specialist II is the journey level of the class series performing more complex disease investigations and serving as a resource and trainer for the Disease Investigation Specialist I.

DISEASE INVESTIGATION SPECIALIST II:

The Disease Investigation Specialist II is the journey level of the class series performing more complex disease investigations and serving as a resource and trainer for the Disease Investigation Specialist I. The Disease Investigation Specialist II is the targeted competency and performance level for the Disease Investigation Specialist series.

IDEAL CANDIDATE

The STI Prevention Unit within the Public Health Branch is seeking a dedicated, compassionate, and curious Disease Investigation Specialist to help prevent the transmission of sexually transmitted and other communicable diseases in Shasta County. We are looking for a public health professional who enjoys building relationships, solving problems, and making a meaningful impact in the community.

The ideal candidate builds trust through empathy, professionalism, cultural humility, and confidentiality. They are comfortable having sensitive conversations, conducting client interviews, and working with vulnerable or hard-to-reach populations. They communicate effectively, think critically, adapt to changing priorities, and work successfully both independently and as part of a collaborative team.

Successful candidates have experience working with medical records and terminology, providing direct client or patient services, and collaborating with healthcare providers and community partners. They are comfortable collecting specimens, including performing venipuncture, using appropriate infection prevention practices, and are proficient with computers and electronic data systems.

Above all, the successful candidate is passionate about protecting and improving the health of the Shasta County community through compassionate service and a commitment to public health.

EXAMPLES OF ESSENTIAL DUTIES

Disease Investigation Specialist I/II:

Duties may include, but are not limited to, the following:

Conduct investigations using various investigation methodologies (e.g. field investigation, available record search and electronic tools, electronic health and medical records, site assessments); comprehensive interviews of persons with suspected and active communicable diseases to identify potential contacts, source of infection and location of disease transmission; locates suspected contacts and persons infected with communicable diseases to notify and educate them about test results, disease exposure and tests required; enters and retrieves data and compiles reports pertaining to case investigation using multiple databases, programs and worksheets; document intervention activities in a timely and accurate manner; promote a confidential and comfortable environment for client communications while maintaining compliance with HIPAA requirements; verify that clients received testing, adequate treatment, and follow-up services as appropriate; provide clinical testing and specimen collection based on specific diagnosis; participate in event based and targeted testing, screening and outreach; administer, and or deliver testing, test results, and/or treatment to clients; collect and transport specimens as appropriate; provide or facilitate transportation to client’s clinic appointments; maintain field supplies and comply with field safety procedures; serve as a local resource for public health information or recommendations to the community and providers; participate in emergency preparedness training and support outbreak response interventions.

QUALIFICATIONS

Disease Investigation Specialist I/II:

Any combination of education and experience sufficient to directly demonstrate possession and application of the following:

Knowledge of: Ethical and professional conduct; privacy practices (HIPAA) and disease reporting procedures; client-centered interviewing and counseling techniques; modes of transmission, diagnosis, disease characteristics, treatment, prevention and control of STD, HIV, and other communicable diseases; methods and techniques of investigation of diseases, disease testing protocols; public health law enforcement and organizational functions of public health.

Ability to: Communicate clearly using active listening; establish and maintain collaborative professional relationships; conduct effective interviews of a highly personal nature; utilize critical thinking, initiative and tact in contact tracing for follow-up treatment; work effectively with medical personnel and public officials; collect, handle and process patient specimens; utilize social media and record searching modalities for investigative purposes; prepare and maintain confidential reports and correspondence; adapt to unfamiliar and changing environments; problem solve in the field and in client living settings; work with a socio-economically and culturally diverse population of clients including unsheltered persons, injection drug users, undocumented, incarcerated and populations with high rates of STD.

MINIMUM QUALIFICATIONS

It is the responsibility of applicants to identify in their application materials how they meet the minimum qualifications listed below.

Disease Investigation Specialist I:

EITHER

Completion of 60 semester or 90 quarter units (AA degree equivalent) from an accredited college or university in biological sciences, health science, public health, behavioral sciences, or a related field AND two (2) years of experience working in a public health, community based, or medical organization in the provision of community based health services such as communicable disease investigation, health education, counseling, interviewing or a closely related field.

A bachelor’s degree from an accredited college or university in biological science, health science, public health, behavioral health or a related field may substitute for one (1) year of experience.

OR

Three (3) years of experience working in public health, community based or medical organization conducting communicable disease investigation.

Disease Investigation Specialist II:

EITHER

A bachelor’s degree from an accredited college or university in biological science, health science, public health, behavioral health or a related field AND two (2) years of experience working in a public health, community based, or medical organization in the provision of community-based health services such as communicable disease investigation, health education, counseling, interviewing or a closely related field;

OR

Completion of 60 semester or 90 quarter units (AA degree equivalent) from an accredited college or university in biological sciences, health science, public health, behavioral sciences, or a related field AND three (3) years of experience working in a public health, community based, or medical organization in the provision of community based health services such as communicable disease investigation, health education, counseling, interviewing or a closely related field;

OR

Four (4) years of experience working in public health, community based or medical organization conducting communicable disease investigation.

SPECIAL REQUIREMENTS

Disease Investigation Specialist I:

Disease Investigation Specialist II:

SUPPLEMENTAL QUESTIONS

Responses to the following must be submitted with a completed application.

1. Have you completed at least 60 semester or 90 quarter units (AA degree equivalent) from an accredited college or university in biological sciences, health science, public health, behavioral sciences, or a related field AND two years of experience working in a public health, community based, or medical organization in the provision of community-based health services such as communicable disease investigation, health education, counseling, interviewing or a closely related field? If yes, please state the major(s) of your degree and applicable experience. If no, please type "N/A."
2. Do you possess a bachelor's degree in biological science, health science, public health, behavioral health, or a related field? If yes, please state the major(s) of your degree. If no, please type "N/A."
3. Do you have three (3) – four (4) years of experience working in public health, community based or medical organization conducting communicable disease investigation? If “yes”, please list the job title(s), dates of employment, and the job duties. If no, please type "N/A."
4. I acknowledge that this position does require a valid California driver's license. Yes/No

PHYSICAL DEMANDS AND WORK ENVIRONMENT

The physical demands and work environment described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is regularly required to talk and hear or to use hands to finger, handle, or feel. The employee frequently is required to walk and sit. The employee is occasionally required to stand; reach with hands and arms; and stoop, kneel, crouch, or crawl. The employee must frequently lift and/or move up to 25 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus. While performing the duties of this job, the employee is occasionally exposed to outside weather conditions. The noise level in the work environment is usually moderate.

OTHER CONSIDERATIONS

• All new employees are required to have their paycheck directly deposited to a bank account.
• Some positions may require a valid California driver's license and acceptable driving record according to County policy.
• Reasonable accommodations may be made for those persons who are disabled under the Americans with Disabilities Act to perform the essential functions of the position.
• As part of the selection process, all individuals provided with a preliminary offer of employment with Shasta County will be subject to a background investigation, including a criminal history check (primarily completed through the taking of fingerprints). An image of your fingerprints will be captured and sent to the California Department of Justice (DOJ) and the Federal Bureau of Investigation (FBI). The resulting report of your conviction history, (if any), will be evaluated along with the other information received in connection with your application. Except as otherwise required by law, a criminal conviction will not necessarily disqualify you from the position. The nature of the offense, the date of the offense, the surrounding circumstances, and the relevance of the offense to the position applied for may, however, be considered.
• Based on the results of the background investigation and criminal history check, applicants may then be provided with an offer of employment conditioned on the results of a medical examination, which includes drug/alcohol testing.

• In accordance with Government Code Section 3100, County employees, in the event of a disaster are considered disaster workers and may be asked to respond accordingly.
• Positions in this classification are covered by a collective bargaining agreement between the County and the UPEC – General bargaining unit.

APPLICATION AND SELECTION PROCEDURES

Shasta County Personnel will accept applications and responses to the supplemental questions until 12:00 p.m., on July 16, 2026. A resume and/or cover letter will be accepted in addition to the application but will not serve as a substitute for a completed application. It is not acceptable to complete the application with statements such as “Refer to resume and/or cover letter,” or “See attached resume and/or cover letter.” The application must be completed in its entirety prior to submission. Incomplete applications will not be processed. Closing date postmarks or faxes will not be accepted. This recruitment will establish a list that may or may not be used by other departments. Prior applicants must reapply to be considered.

Applicants will be screened and those considered best qualified will be invited to appear for an oral and/or written examination. Meeting the announced requirements does not guarantee inclusion in the selection process. Depending upon the number of applications received, the selection process may consist of additional application screening, written and/or practical exam(s), oral interview, or any combination thereof.

Veterans' Credit:Veterans (as defined by California Government Code section 18973) who have been discharged from military service under conditions other than dishonorable and who receive a passing score on all components of the employment examinations (up to and including oral examinations) shall receive credit for an additional five points to be added to their final examination score. To be considered for this credit, a veteran must provide a copy of his or her discharge document (DD-214 or equivalent) and information as to the type of discharge (honorable, dishonorable, etc.) with the employment application on or before the final filing date. Applicants are encouraged to apply online at www.ShastaCountyCareers.com or submit an application to the Shasta County Personnel Office.

Arrangements may be made to accommodate applicants with disabilities. Requests for accommodations may be made to the Shasta County Personnel Office by the filing deadline posted on this bulletin. Shasta County does not discriminate on the basis of disability. If you feel you are being denied service based on a disability, our ADA Coordinator may be reached at (530) 225-5515; relay service (800) 735-2922; fax (530) 225-5345.

Shasta County will consider qualified applicants with a criminal history pursuant to the California Fair Chance Act. You do not need to disclose your criminal history or participate in a background check until a conditional job offer is made to you. After making a conditional offer and running a background check, if Shasta County is concerned about a conviction that is directly related to the job, you will be given the chance to explain the circumstances surrounding the conviction, provide mitigating evidence, or challenge the accuracy of the background report. Find out more about the Fair Chance Act by visiting Fair Chance Act | CRD.

SHASTA COUNTY IS AN EQUAL OPPORTUNITY EMPLOYER

Shasta County Personnel

1450 Court Street, Suite 348; Redding, CA 96001; (530) 225-5515

Benefits:

NOTE: Various bargaining units may have benefits that alter from this general summary. This summary of benefits is not a binding document and is provided as a courtesy. Refer to labor agreements (MOUs) for specific benefit information.

THESE BENEFITS DO NOT APPLY TO EXTRA HELP EMPLOYEES

Holidays:

• 12 paid holidays (96 hours) per year.
• 1 Floating holiday annually.
  

Vacation:

• 10 working days a year during the first three years of service.
• 15 working days a year - 4 through 9 years of service.
• 17 working days a year - 10 through 15 years of service.
• 20 working days a year - 16 or more years of service.

Note - accrued vacation leave may not be used until after three months of employment. For purposes of vacation accrual, a working day is no more than 8 hours.

Employees may elect to receive a payment for Vacation hours (in lieu of use) for up to twenty hours – in five whole hour increments – of accrued vacation. *Subject to criteria as outlined in section 13.9C in the UPEC-General MOU.

Sick Leave:

• 96 hours of sick leave are earned each year with no maximum accrual.
  • Employees terminating in good standing after completion of 5 years of continuous service will receive a pro-rata payoff of accumulated sick leave.
  • Unused sick leave may be converted to PERS service credit upon retirement.

Note - sick leave may be used immediately as accrued. Accrued paid leave benefits are used in conjunction with FMLA/CFRA as appropriate.

*Vacation and Sick Leave accruals are based on regularly scheduled working hours. Additional time will not be accrued on hours worked over 80 hours within a one pay period.

Bereavement:

• 24 hours paid leave for each non-concurrent death in the immediate family.
  

Health Plan:
Shasta County contracts with PERS for medical insurance.
Depending on the plan selected, the County pays most of the employee premium, and contributes a portion of the dependent premium.
Contributions are made for a portion of a retiree's insurance premium.

Dental Plan:
The County pays a portion of the employee's and dependents' premium for dental insurance. The employee pays the full premium during the first six months of coverage.

Vision Plan:
The County pays the employee premium and employees may enroll dependents at their own expense.

Life Insurance:
The County pays the premium for life insurance for most employees. The amount of coverage varies by bargaining unit. For UPEC-General employees the current coverage amount is $25,000.

Additional Life insurance is available to purchase through Aflac and The Standard.

Retirement:
The County is in the Public Employees' Retirement System (CalPERS) coordinated with Social Security.

• Members hired prior to May 8, 2011 are covered under the retirement formula of 2% @ 55 benefit.
• Members hired after May 8, 2011 but before January 1, 2013 are covered under the retirement formula of 2% @ 60 benefit.
• Members hired after January 1, 2013 are covered under the California Public Employees Pension Reform Act (PEPRA) with a benefit formula of 2% @ 62.

Please review the specific MOU for stipulated retirement formulas.

Employees pay 9.5% of his or her salary, on a pre-tax basis for a period of time as specified in his or her labor contract, or Personnel Rules as appropriate. Members hired prior to 2013 may have a different contribution percentage.

Miscellaneous:

• Deferred Compensation plans available through specified companies with employer match up to 3%
• IRC Section 125 plan available for pre-tax payroll deductions for contributions towards un-reimbursed medical expenses and dependent care.
• Optional additional insurance products are available through Aflac.
• Employee Assistance Program through ACI Specialty Benefits.
• Golden State Finance Authority – Down payment Assistance
• ScholarShare 529 – College Savings Plan
• Longevity Pay eligibility review with at least ten years of continuous service with Shasta County
  

SHASTA COUNTY IS AN EQUAL OPPORTUNITY EMPLOYER

Any information on this page or links is subject to change without notice.

Shasta County Personnel
1450 Court Street, Room 348
Redding, CA 96001-1676
(530) 225-5515

Comments, please email: schr@shastacounty.gov

Questions:

Required Question

Employer: County of Shasta
Address: 1450 Court Street, Suite 348 Redding, California, 96001
Phone: (530) 225-5515
Website: https://www.shastacounty.gov/personnel