Senior Field Service Mechanic – Onsite Fleet Diagnostics

Herc Rentals; College Park (GA); On-site; USD 41,000 - 50,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401(k) Match

Stock Purchase Program

Paid Time Off

Parental Leave

EAP

Tuition Reimbursement

Insurance Discounts

Job summary

Herc Rentals in Georgia is seeking a Field Service Mechanic A to lead fleet maintenance at customer sites. You will perform preventative maintenance, diagnose issues, and ensure equipment is rental-ready while upholding safety standards.

This role requires strong hands-on skills with electrical, hydraulic, propane systems, and the ability to mentor B/C level techs. You will travel to job sites in varying conditions and document work orders in the fleet management system.

Qualifications

• High School Diploma or equivalent.
• Proficiency with computerized diagnostic tools and fleet management systems.
• Must be able to operate a fully equipped service truck and obtain FMCSA Driver Qualification File (DQF).

Responsibilities

• Maintain PM schedules for Herc-owned fleet at active job sites.
• Operate/test equipment onsite to confirm quality standards before and after repairs.
• Independently perform routine maintenance and repairs on fleet equipment and trucks.
• Perform oil changes, lubrication, tire/hose/battery replacements, and related field services.
• Recondition/replace heavy equipment parts and diagnose wear/tear onsite.
• Keep service truck and inventory clean, organized, and stocked.
• Produce detailed service reports and repair logs per visit.
• Follow field procedures, protocols, and safety requirements; other duties as assigned.
• Diagnose engines, DC electrical, propane, hydraulic, and fuel systems onsite using diagnostic/hand tools and measuring instruments.
• Repair using electrical schematics; inspect overvoltage protection and indicator lights.
• Replace/diagnose control modules; reprogram firmware/software via laptop/tablet tools.
• Apply computer-controlled diagnostics to resolve electrical issues without branch return.
• Diagnose lithium electrical issues, intermittent faults, and post-fire failure analysis.
• Diagnose/repair safety-critical circuits to restore equipment onsite; install aftermarket electrical components.
• Diagnose DPF/DEF system issues; troubleshoot and calibrate mechanical, electronic, and power loss issues.
• Conduct failure analysis supporting policy review and warranty eligibility.
• Analyze/test lubrication systems; replace injectors and common rail components.
• Inspect lithium battery charging; recalibrate aerial systems; perform annual aerial inspections.
• Use computerized tools to trace electrical faults, connections, switches, sensors, and safety interlocks.
• Assist shop lead with damage estimates, repairs, and documentation onsite.
• Take service calls in shop lead's absence; dispatch/coordinate Field Service Mechanics for timely repairs.
• Assist training Field Service Mechanic B/C techs under shop lead direction.
• Enter/review work orders and order parts via fleet management system from the field.
• Serve as primary customer contact onsite, maintaining a professional, responsive presence.

Skills

Field leadership

Diagnostic tools

Electrical systems

Hydraulic systems

Safety compliance

Customer contact

Fleet management

Manual dexterity

Outdoor work

Education

High School Diploma

Job description

Herc Rentals in Georgia is seeking a Field Service Mechanic A to lead fleet maintenance at customer sites. You will perform preventative maintenance, diagnose issues, and ensure equipment is rental-ready while upholding safety standards.

This role requires strong hands-on skills with electrical, hydraulic, propane systems, and the ability to mentor B/C level techs. You will travel to job sites in varying conditions and document work orders in the fleet management system.