Overnight Mosquito Vector Control Jobs (NOW HIRING)

Salary: See Position Description
Location : Vector Control - 10521 Baur Blvd, St. Louis MO 63132, MO
Job Type: Full-Time
Job Number: 2026-00126
Department: Public Health - Vector Control
Opening Date: 05/21/2026
Closing Date: 5/31/2026 11:59 PM Central
Description
Are you interested in protecting the public health of the residents and visitors of St. Louis County? In this position you will be providing a valued service, assuring public health and Are you interested in protecting the public health of the residents and visitors of St. Louis County? In this position you will be providing a valued service, assuring public health and safety, by limiting public exposure to disease-carrying organisms such as mosquitoes, ticks, and rodents.
The starting salary will be $25.79 per hour. Additionally, we offer a comprehensive benefits package which includes affordable health insurance, dental and vision coverage, 4 weeks of Paid Time Off the first year, 11 paid holidays, a deferred retirement plan, paid life insurance as well as short and long-term disability. The work days and hours will vary according to the season. Additional details are listed below.
St. Louis County Government is a qualified agency for the Public Service Loan Forgiveness program managed by the Federal Government. For more information regarding this program, please visit
ABOUT OUR PROGRAM
St. Louis County operates a comprehensive IPM-based Vector Program with Integrated Vector Management (IVM) method specificity. IVM is a sustainable approach to vector management that minimizes economic, health, and environmental costs using a combination of control methods developed using the Centers for Disease Control's (CDC's) framework for vector abatement competencies. These methods use principles of surveillance, source reduction, targeted abatement measures and impact monitoring. Abatement methods are surveillance-driven and occur only after predetermined action thresholds are met. Therefore, surveillance results dictate when control methods are warranted and what control methods are selected. These methods are then applied in a manner that reduces insecticide resistance and minimizes risks to human health, non-target species, beneficial organisms, and the environment.
Examples of Duties
PRIMARY JOB DUTIES
The primary responsibilities of this position focuses on adult mosquito abatement during peak mosquito season, and public education and outreach during the off-season. Peak mosquito abatement season is from about May through September. During this time the candidate will work the nightshift (with 10% differential pay) which is Sunday to Thursday, 3:30pm to midnight, conducting night-time ULV applications. During the off-season, all full-time employees move to the day shift (without pay differential) which is Monday-Friday, 6:30am to 3:00pm. During this time, candidate will conduct community outreach and education. Candidate may also be required to assist in other areas of the program, including mosquito and tick surveillance and testing, and larval mosquito abatement.
Adult Mosquito Abatement:

• Operate County vehicle (full size pick-up truck) with truck-mounted ultra-low volume (ULV) sprayer to apply chemical control measures in areas with high concentrations of disease carrying species of mosquitoes.
• Monitor environmental and mechanical conditions during adulticiding applications.
• Use a GPS unit for accurate navigation and identification of no-spray locations.
• Use a computerized tablet to collect and enter data in ULV monitoring system.

Public Education & Outreach:

• Assist in the development and implementation of public education and outreach presentations, activities, and educational materials regarding vectors, vector-borne disease, and vector-borne disease prevention.
• Conduct public education and outreach presentations with activities to schools, groups, and organizations during the off-season.

OTHER JOB DUTIES (AS NEEDED)
Surveillance:

• Assist with surveillance activities for mosquito and tick-borne diseases by surveying sites, setting, and retrieving surveillance traps, and collecting field specimens for identification and testing.

Laboratory:

• Use a microscope and dichotomous key to identify and sort mosquito and tick samples.
• Prepare and pool field specimens for laboratory testing.
• Assist with laboratory testing of mosquito and tick samples using RT-PCR techniques.

Vector Abatement:

• Assist with larval and adult mosquito abatement by conducting appropriate pesticide applications, safely and effectively, according to IVM protocols.
• Respond to service requests by conducting field investigations and providing professional recommendations regarding control and exclusion methods to county residents, businesses, and government officials.
• Use a computerized tablet to collect and enter field and treatment data.

WORKING CONDITIONS
Work Environment:

• Outdoor: frequent work outdoors with exposure to heat and humidity and working on uneven ground such as fields with standing water, wooded areas, creeks, catch basins, sinkholes, ponds.
• Typical office/laboratory environment: occasional work in an office setting using typical office equipment. Some assignments may be in a laboratory setting using common biological laboratory equipment and substances.
• Some work requires wearing appropriate personal protective clothing and equipment.

Physical Demands:

• Frequent standing, walking, or working from a county vehicle for long periods of time (5-6 hours/day); periodical bending at the knees and waist, stooping, crawling, reaching over head and squatting. Repetitive motion associated with computer usage and machinery operation.

Should you have any questions about the position after reading through this post, please do not hesitate to contact us at Mosquito.DPH@stlouiscountymo.gov. We are happy to help clarify information and provide you with the answers you need to help you make an informed decision prior to you taking the time to fill out the application.
Minimum Qualifications

• Graduation from an accredited college or university with a Bachelor's Degree in entomology, biology, public health, natural science, or a related field; or any equivalent combination of training and experience.
• A valid Driver License will be required at the time of employment and must be maintained throughout employment.
• Licensed as a Certified Public Operator (Category 8) in public health pest control by the Missouri Department of Agriculture, Plant and Industries Division, within six months of employment.
• Experience in field investigations, pesticide applications, GIS, data entry, and laboratory skills preferred.

Additional Information
SELECTION AND APPOINTMENT: A selection committee will evaluate the qualifications of each applicant which will include recentness and appropriateness of the applicant's education and experience, answers to the supplemental questions, results of employment references investigated and any other appropriate information available. The selection committee will admit to the interview only those persons who possess the most job related qualifications and may establish admittance criteria beyond the minimum qualifications stated above.
Responses provided to the interview questions listed under the Supplemental Question heading of this posting will comprise 100% of the applicant's earned grade. A candidate must earn a qualifying grade of 70 or more on the interview to be eligible for appointment. Once questions are scored, an email will be sent to the address on file with instructions on how to complete and submit a Conviction Questionnaire. Candidates have 3 days to complete the required questionnaire. The five top ranking candidates, based on the final grade, will be certified to the Department Director/Appointing Authority who will make the final decision.
All applicants conditionally offered a merit position will be required to submit to urinalysis to screen for illegal drug use prior to appointment. Screening will be performed by a reputable clinical laboratory. The cost of screening will be covered by the County.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.
COVID-19 VACCINATION POLICY: In support of commitment to the health, safety, and wellness of all staff and to be compliant with the Centers for Medicare and Medicaid Services (CMS)it is the policy of the Department of Public Health that all newly hired employees are required to provide proof of COVID-19 vaccination. Acceptable forms of proof include CDC COVID-19 vaccination cards (or legible photo), documentation from a health care provider, electronic health record, or state immunization information system record. New employees must be fully vaccinated prior to starting service for the Department, and adherence to this policy is a condition of employment. Full vaccination means having received a Food and Drug Administration (FDA) Emergency Use Authorization (EUA) approved vaccine or vaccine series, consisting of two doses of either of the two-dose vaccines or one dose of the single-dose vaccine. For moderately or severely immunocompromised individuals, a primary series consists of a 3-dose series of an mRNA COVID-19 vaccine or a single dose of Janssen COVID-19 Vaccine. Individuals are considered fully vaccinated two weeks after the second dose in a two-dose series, or two weeks after a single-dose vaccine. At this time, full vaccination does not require a booster shot. The meaning of "fully vaccinated" is subject to change in accordance with the most recent Centers for Disease Control and Prevention (CDC) guidelines. For applicants with ato the vaccine or sincerely held religious beliefs, which prohibit them from receiving a vaccine, you may contact the Department of Public Health Office of Human Resources (DPH HR) during the hiring phase to request an exemption or reasonable accommodation. Employees granted exemption for medical or religious reasons will be required to wear facial coverings to reduce the risk of transmission to at-risk individuals in DPH facilities and submit to weekly COVID-19 testing. All prospective employees must read and acknowledge the Policy during the application process.
HOW TO APPLY: Applicants interested in applying for this position should visit our website at. We only accept On-line applications.
EQUAL EMPLOYMENT OPPORTUNITY POLICY: The policy of the Civil Service Commission of St. Louis County is to support fair and equitable employment opportunities for all persons regardless of race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, marital status, veterans' status or political affiliation. Call the Division of Personnel at (314) 615-5429 for more information on this policy.
St. Louis County
Division of Personnel, 7th Floor
Clayton, MO 63105
(314) 615-5429
Relay MO 711 or 800-735-2966
An Equal Opportunity Employer
Fax: (314) 615-7703
St. Louis County offers its employees many excellent benefits with paid medical insurance, 20 days of PTO (paid time off) the first year and increasing with seniority, and 11-12 paid holidays. Employees hired for full time employment will participate in the St. Louis County retirement plan where they contribute 4% of their salary to the defined benefit plan with vesting after 7 years. Other benefits include: paid life insurance, a credit union, 457 Deferred Compensation Plan, pre-tax premium pay plan, dependent care and medical expense reimbursement plans, and short and long term disability insurance.
In addition to these benefits, as of January 1, 2023, St. Louis County approved up to 480 hours of paid parental leave for eligible employees welcoming new children, either by birth or adoption. The employee can also take up to 80 hours of leave for prenatal care and up to 80 hours for care of the child within the first year.
Please click to view all of our benefits.
01
Please provide any previous work experience you have had with St. Louis County Government including roles you held and the dates of employment. Further, please explain the reason(s) for your departure from the organization. If this does not apply to you, simply enter n/a.
02
Do you have a Bachelor's Degree in environmental science, public health, or a related natural science. (if, so name school and dates of attendance.)
03
Describe any experience in field investigations, pesticide applications, GIS, data entry, and laboratory skills preferred.
04
Do you understand you will need to become a licensed as a Certified Public Operator (Category 8) in public health pest control by the Missouri Department of Agriculture, Plant and Industries Division, within six months of employment?

• Yes
• No

05
Do you have a valid Drivers License?

• Yes
• No

06
Has your driver's license ever been suspended or revoked ? If so, please explain.

• Yes
• No

07
How many moving violations have you had in the last 3 years?
08
I'm willing and available to work the assigned schedule which consists of summer Sunday - Thursday 3:30 pm to midnight. The remainder of the year will be Monday - Friday 6:30 am to 3:00 pm.

• Yes
• No

Required Question