Mechanic III

Greatjob; Gibsonia (Allegheny County); On-site; USD 34,000 - 48,000; Full time

Job summary

Greatjob seeks a senior Mechanic III to diagnose complex issues, perform major repairs, and lead a skilled shop team. You will mentor junior mechanics and drive high-quality outcomes across a fleet of light and landscaping equipment.

Ideal candidates bring 5+ years of hands-on experience, ASE/DOT certifications, and proficiency with diagnostics, schematics, and fleet software. This full-time shop role requires reliability and strong safety focus.

Qualifications

• High school diploma or equivalent required; automotive/diesel program preferred.
• 5+ years of progressive hands-on mechanic experience.
• Valid driver's license; CDL preferred or willing to obtain.
• ASE/DOT/hydraulic certifications preferred.

Responsibilities

• Complete complex repairs on gasoline/diesel trucks, trailers, and landscaping equipment.
• Lead troubleshooting with advanced diagnostic tools and manufacturer resources.
• Perform DOT inspections and ensure regulatory compliance.
• Provide coaching to Mechanic I and II staff and mentor junior team members.
• Accurately complete work orders and service documentation in Fleetio.

Skills

Vehicle systems

Leadership

Safety mindset

Independent work

Education

High school diploma or equivalent; automotive/diesel program preferred

Tools

Diagnostic scan tools

Schematics

Technical manuals

Diagnostic software

Job description

Classification: Full-Time Houry Non-Exempt

Position Core Profile: Mechanic III is a senior-level technician role responsible for performing complex diagnostics, major repairs, and advanced welding and fabrication work across a diverse fleet of vehicles and landscaping equipment. This role independently handles high-skill mechanical and structural repairs, serves as a technical subject matter expert, and mentors other mechanics within the shop

Differentiators:

• Advanced Repair, Welding & Diagnostic Expertise: Independently completes major mechanical repairs and structural welding and fabrication projects critical to fleet reliability.
• Technical Leadership: Acts as a go-to resource for the mechanic team, answering technical questions and guiding junior mechanics through troubleshooting and repair tasks.
• Compliance & Quality Champion: Ensures work adheres to company safety, DOT, and quality control standards, often conducting final inspections or approvals before release to service.

Accountabilities:

• Advanced Maintenance & Repair: Complete complex repairs on gasoline and diesel trucks, trailers, and landscaping equipment (e.g., hydraulic systems, drivetrains, electrical systems, engine components); Perform advanced welding and fabrication, including frame repairs, reinforcement of structural components, custom brackets, mounts, equipment modifications, and trailer repairs; Lead troubleshooting of hard-to-diagnose issues using advanced diagnostic tools and manufacturer resources; Perform DOT-level inspections and ensure full compliance with regulatory standards.
• Diagnostics & Quality Control: Utilize scan tools and diagnostic software to isolate performance issues and system malfunctions; Confirm root causes and provide detailed repair recommendations; Conduct quality checks on repairs performed by other team members.
• Shop Operations & Leadership Support: Assist with scheduling work orders and allocating tasks across the mechanic team; Help maintain shop organization, parts inventory, and cleanliness; Support shop safety initiatives and enforce proper tool and PPE use.
• Training & Mentorship: Provide coaching and hands-on support to Mechanic I and II staff; Train team members on new equipment, procedures, and service documentation; Participate in the onboarding of new mechanics and help set performance expectations.
• Documentation & Systems: Accurately complete detailed work orders, inspection reports, and service documentation in fleet management software (e.g., Fleetio); Ensure consistency in digital records and adherence to process standards.

This list of responsibilities is not exhaustive, and other duties may be assigned as dictated by business needs.

Experience and Qualifications:

• Education: High school diploma or equivalent required; Completion of a certified automotive or diesel technology program preferred.
• Experience: 5+ years of progressive hands-on mechanic experience; Experience with landscaping-specific fleet equipment (mowers, trailers, skid steers, etc.) strongly preferred.
• Licensing/Certification: Valid driver's license required; CDL preferred or willingness to obtain; industry certifications such as ASE, DOT brake inspections, or hydraulic systems preferred.
• Technical Proficiency: Expert-level mechanical, electrical, and hydraulic diagnostic skills; Proficient in use of diagnostic scan tools, schematics, and technical manuals; Strong computer skills for service documentation and diagnostic software

Skills:

• Advanced understanding of vehicle systems and tool usage.
• Strong leadership qualities with a focus on team support.
• Safety-first mindset with high attention to detail.
• Ability to work independently and under pressure.

Key Performance Metrics:

• First-time repair accuracy and diagnostic success rate
• Timeliness of major repairs and special projects
• Quality assurance findings and repair rework rate
• Effectiveness in mentoring junior mechanics
• Work order and inspection documentation accuracy
• Shop safety and tool compliance adherence

Working Conditions and Availability Disclosure:

• Work performed in a shop and yard environment with exposure to moving equipment, fluids, and outdoor elements; may involve occasional work outdoors or in variable weather conditions.
• Must be able to stand, bend, kneel, climb, and lift up to 50lbs regularly; frequent use of hand tools, lifting equipment, and diagnostic devices; require visual acuity and manual dexterity to inspect and service equipment.
• Primarily Monday through Friday with early morning, evening, or emergency response requirements, especially during peak seasons or urgent fleet issues.
• Occasional local travel to perform field service calls, equipment recovery, or vendor visits.

The above statements describe the general nature and level of work to be performed.