Mechanic Supervisor

Douglas County; Castle Rock (CO); On-site; USD 76,000 - 115,000; Full time

Benefits offered by this job

Clothing allowance

Tool allowance

Job summary

Douglas County is seeking a Mechanic Supervisor in Castle Rock, CO. This full-time role leads a fleet shop team, oversees complex mechanical maintenance, and directs daily activities to ensure safe, reliable operations for diverse vehicles and equipment.

The candidate will manage workload, enforce preventive maintenance, coordinate parts, and drive staff development while maintaining compliance with FMCSA and emissions standards.

Qualifications

• High school diploma or GED equivalent required.
• Graduation from automotive, diesel, or heavy-equipment technical training preferred.
• Eight years of fleet-based automotive/diesel experience.
• One year of fleet lead or supervisory experience.

Responsibilities

• Supervise and perform maintenance and repair for Fleet Services vehicles and equipment.
• Provide day-to-day supervision, assign work, and develop staff.
• Review timesheets, schedule staffing, and ensure PM compliance.
• Coordinate parts, inventory, and costs; monitor maintenance programs.
• Maintain warranties, FMCSA inspections, and emissions compliance.
• Develop training programs and ensure documentation accuracy.

Education

High school diploma or GED

Automotive/diesel/heavy-equipment tech training preferred

Job description

Mechanic Supervisor

Employment Type: Full-time Regular
Pay Range: $76,350.00 - 114,525.00
Location: Castle Rock, CO
Overtime Exempt: Y
Elected Office / Department: FACILITIES

This is a working supervisory position responsible for performing complex mechanical maintenance and repair work, as well as providing day-to-day supervision and leadership within the Douglas County Fleet Services division.

The position supervises an assigned team of mechanics and coordinates maintenance and repair activities for a diverse fleet of vehicles and equipment. Responsibilities include assigning and prioritizing work, monitoring preventive maintenance compliance, providing technical guidance and employee development, ensuring accurate documentation, and supporting safe, efficient, and cost-effective shop operations.

Generally, the hiring range is $76,350-$95,438 annually. Qualifications, education and experience as it relates to the position will be taken into consideration when determining hiring salary.

Typical work schedule: 10-hour work days, Monday – Thursday, 7:00am to 5:30pm additional overtime hours may be required.

This position includes an annual clothing allowance of $150 and a monthly tool allowance of $100.

Your future is important to us.
Douglas County offers a comprehensive benefits package — including medical,dental, vision, and retirement plans — plus a wide range of additional resources to support your health, growth, and overall well-being. View the full Employee Benefits Guide.

View the full job description here

ESSENTIAL DUTIES AND RESPONSIBILITIES:

• Supervises and performs maintenance and repair activities for vehicles and equipment assigned to the Fleet Services shop or location.
• Provides day-to-day supervision to assigned Fleet Services mechanics. Assigns and prioritizes work, provides technical guidance and support, coordinates training, conducts employee performance evaluations, and administers corrective action as appropriate to ensure established policies, principles, and standards are maintained.
• Reviews and approves employee timesheets and assists with scheduling and staffing needs.
• Implements, administers, and monitors preventive maintenance programs to promote vehicle and equipment reliability, cost-effectiveness, and compliance with or exceeding manufacturer specifications.
• Works closely with the Parts Department to order required parts and supplies and maintain accurate inventory information within the fleet management system, including expenditures, repair parts, supplies, and other applicable costs.
• Analyzes vehicle and equipment utilization and maintenance information within FASTER to ensure appropriate maintenance programs and schedules are followed.
• Develops, implements, and maintains mechanic training and certification programs to ensure employees have the technical knowledge and skills necessary to remain current with industry repair standards, technologies, and best practices.
• Reviews work orders, repair documentation, and related reports for accuracy, completeness, and appropriate documentation.
• Prepares, performs, and documents required annual Federal Motor Carrier Safety Administration (FMCSA) inspections and ensures inspection records are properly maintained and filed.
• Initiates, documents, and tracks applicable manufacturer warranty claims to maximize warranty recovery and reduce County repair costs.
• Monitors fleet assets to ensure compliance with applicable State of Colorado emissions testing requirements.
• Provides technical assistance and performs mechanical maintenance and repair work as operational needs require.
• Performs other duties as assigned.

MINIMUM QUALIFICATIONS:

EDUCATION and/or EXPERIENCE:

• High school diploma or GED equivalent required.
• Graduation from an automotive, diesel, or heavy-equipment technical training program is preferred.
• Eight (8) years of fleet-based automotive and/or diesel mechanical experience.
• One (1) year of experience in a fleet lead or supervisory role.
• A combination of education and experience that provides the required knowledge, skills, and abilities may be considered.

CERTIFICATIONS, LICENSES, & REGISTRATIONS:

• Must possess a valid Colorado Driver's License upon hire. A motor vehicle record review is required at the time of hire and periodically throughout employment.
• Must possess or obtain a Colorado Class A Commercial Driver's License (CDL) permit within 90 days of hire and obtain a Class A CDL with no "E" restriction within two (2) years of the date of hire.
• Must possess or obtain within 90 days of hire a Colorado Department of Public Health and Environment, Air Pollution Control Division, Diesel Fleet Self-Certification Program inspection card.
• Must possess or obtain applicable certification to service and repair automotive air-conditioning systems and perform heavy-duty diesel opacity emissions testing.
• Automotive Service Excellence (ASE) and/or manufacturer certifications are preferred.
• This position requires successful completion of a criminal background check including fingerprinting through a national database.

ADDITIONAL INFORMATION:

Closing Date: 9/11/2026 4:59PM MST. Review of applications will begin immediately and continue until a suitable candidate is selected.

The job details outlined in this posting may represent a modified summary of the full job description. For a full copy of the job description CLICK HERE to view our job classifications.

In the event of an emergency/disaster in or near the County, all County employees are expected to make every effort to be available to assist the County Manager, Elected/Appointed Officials and Department Directors to ensure the continued operation of any and all necessary County functions. This may mean being available to perform additional duties and hours beyond what is normally required. In the event that an exempt employee does work more than 40 hours a week in support of County operations during an emergency, such employee may receive overtime or other appropriate wage compensation in accordance with existing County policies or at the discretion of the County.