Assistant Maintenance Supervisor - Signals and Lighting

State of Missouri; Ballwin (MO); On-site; USD 60,000 - 85,000; Full time

Job summary

State of Missouri in Ballwin, MO is seeking an Assistant Maintenance Supervisor to lead crews responsible for highway and facility maintenance, with a focus on safety and compliance. The role requires a Class A CDL with tanker endorsement and six years of related experience, plus successful completion of a work simulation and medical exam.

The position involves supervising day-to-day operations, assigning tasks, training staff, evaluating performance, and ensuring upkeep of equipment and

Qualifications

• High School Diploma or GED/HiSET.
• Valid Class A CDL with tanker endorsement, no air brake restriction, and interstate status (EI or NI).
• Six years of progressively responsible experience in roadway, roadside, bridge, sign maintenance or pavement marking.
• Successful completion of a work simulation examination and a medical-physical examination.

Responsibilities

• Supervises crews in maintenance operations such as mowing, patching, shoulder improvements, cleaning ditches, sign maintenance and striping.
• Assigns tasks and equipment for daily activities; coordinates, schedules and assigns maintenance operations.
• Provides training to employees on safety, equipment operations and maintenance procedures.
• Evaluates employee performance and may make recommendations on employment, promotion, transfer, disciplinary action and discharge.
• Oversees the cleaning and routine maintenance of vehicles, equipment, buildings and grounds.

Skills

Supervisory experience

Safety training

Team management

Education

High School Diploma or GED/HiSET

Valid Class A CDL with tanker endorsement

Job description

Posting closes 08/28/2026

• Applicants will be given 90 days in which to obtain a valid Class A Commercial Driver's License.
  

• Applicants will be given 90 days in which to obtain a valid Class A Commercial Driver's License.
  

Note for internal applicants: Successful candidates already at rates above the posted salary will be evaluated on an individual basis to determine final salary outcome.

Job Location: Signal, Lighting, and Locates Facility - 2309 Barrett Station Road, Ballwin, MO 63021

Why You’ll Love This Position

The assistant maintenance supervisor performs and supervises the activities of crews working on the maintenance of right of way, facilities and the state highway system. Responsibilities are performed under moderate supervision.

What You’ll Do

• Supervises crews in the performance of maintenance operations such as mowing, blade patching, shoulder improvements, leveling course, spot sealing, cleaning ditches, roadside maintenance, mud-jacking, concrete replacement, bridge deck repair, building maintenance and repair, snow removal, sign maintenance, and striping operations.
• Assigns tasks and equipment for daily activities; coordinates, schedules and assigns maintenance operations.
• Provides training to employees on safety, equipment operations and maintenance procedures.
• Evaluates employee performance and may make recommendations on employment, promotion, transfer, disciplinary action and discharge.
• Oversees the cleaning and routine maintenance of vehicles, equipment, buildings and grounds.

Minimum Qualifications

• High School Diploma or GED/HiSET
• Valid Class A Commercial Driver's License with tanker endorsement, no air brake restriction, and interstate status (either Excepted Interstate [EI] or Non-Excepted Interstate [NI]).
• Six years of progressively responsible experience performing roadway, roadside, bridge, sign maintenance or pavement marking responsibilities.
• Successful completion of a work simulation examination and a medical-physical examination.

Special Working Conditions

• Job requires heavy physical exertion and effort.
• Job requires exposure to physical hazards, health and safety risks, and/or adverse or Characteristics otherwise undesirable characteristics in the environment.
• Job may require operation of vehicles to plow snow and spread ice control materials.

More Reasons To Love This Position

MoDOT offers an excellent benefits package that includes a defined pension plan, generous amounts of leave and holiday time, and eligibility for health insurance coverage. Your total compensation is more than the dollars you receive in your paycheck. To help demonstrate the value of working for MoDOT, we have created an interactive Total Compensation Calculator. This tool provides a comprehensive view of benefits and more that are offered to prospective employees.

At MoDOT you will play a key role in maintaining the seventh largest highway system in the United States. We value team players who are open-minded and work well with others to accomplish goals and fulfill our mission of safety, service, and stability. We see the growth of our team members as an investment, both in MoDOT's future and yours. If you're looking for diverse opportunities, challenging work, and a flexible environment, we want to talk to you about joining our winning team. MoDOT operates on shared values and your success in our organization depends upon modeling these values. If you embrace these values, we welcome your application.

If you have questions about this position please contact: [e-mail]