Diesel Service Technician Mechanic III

Service Technician III

PMC Hattiesburg - Hattiesburg, MS 39401

Overview

Position Type Full Time Education Level High School Category Installation - Maint - Repair

Description

Be the Power Behind Heavy Equipment.

Are you hands-on, mechanically skilled, and ready to take the next step in your career? Join our team as a Service Technician III and work on powerful Caterpillar heavy equipment, ensuring it performs at its best when it matters most.

This role is ideal for experienced technicians who are ready to build on their foundation in a skilled trade. You'll work both independently and alongside seasoned professionals in a professional service shop environment. From advanced diagnostics and preventive maintenance to complex repairs, you'll play a key role in keeping construction, agriculture, and industry moving.

Qualifications

What You Bring to the Role:

• High school diploma or GED required. Technical training in diesel engines, heavy equipment, or military mechanical experience preferred.
• Minimum of 5+ years of hands-on experience in heavy equipment, diesel, automotive, or truck engine repair.
• Advanced understanding of diesel engines, hydraulic systems, electrical systems, and complex mechanical diagnostics, with proven experience in heavy equipment repair and troubleshooting in field and/or shop environment.
• Proficient with mechanical tools and diagnostic equipment.
• Strong problem-solving skills, attention to detail, and a drive for accuracy.
• Comfortable reading schematics, manuals, and technical documents.
• Physically capable of lifting, standing, and working in a demanding shop environment for 810 hour shifts.
• Competent with computer systems you will learn to use our systems like SIS and DBS.
• Ability to work overtime and occasional weekends when needed.
• Must possess and maintain a complete set of tools (both SAE and metric) required to perform repairs on heavy equipment.

Safety & Work Environment

• Safety is a core part of everything we do. You are expected to follow all company safety policies, procedures, and regulatory requirements at all times.
• Proper use of required Personal Protective Equipment (PPE) is mandatory, including but not limited to safety glasses, steel-toe boots, gloves, hearing protection, and any job-specific gear.
• Work safely and remain aware of your surroundings in a high-energy shop environment with heavy equipment in motion.
• Immediately report unsafe conditions, incidents, or injuries, and take an active role in maintaining a safe workplace for yourself and your team.
• Participate in safety meetings, training, and continuous improvement efforts to strengthen our safety culture.
• Failure to follow safety requirements may result in disciplinary action, up to and including termination.

Why This Role & Why Puckett Machinery Company?

As a Shop Service Technician III, you will be hands-on with some of the most advanced equipment in the industry, diagnosing, troubleshooting, and repairing complex heavy machinery in a clean, well-equipped shop environment. This role is designed for an experienced technician with a strong background in heavy equipment repair who is ready to work with a degree of autonomy while continuing to expand their skills. In this role, you may also support team members as needed, sharing knowledge in a collaborative shop environment. You'll take pride in delivering precise, high-quality repairs that maximize equipment performance and keep our customers running strong.

What We Offer:

• Competitive hourly pay with regular overtime opportunities
• Flexible scheduling options, including a 4-day workweek
• Comprehensive benefits package (health, dental, vision, 401(k), PTO, and more)
• Steady, full-time schedule in a safe and professional shop environment
• Mentorship and on-the-job training from experienced technicians
• Advanced tools and diagnostic technologies
• Caterpillar and in-house technical training programs
• Career growth opportunities within a well-established company
• A culture built on safety, respect, and customer service excellence

Join a Team That Builds MississippiOne Machine at a Time.

At Puckett Machinery, every wrench turn in the shop supports the people building our communitiesfrom highways and farms to factories and job sites. As a Shop Service Technician, you're not just fixing machines - you're powering progress across Mississippi. If you're ready to grow your career, master new technologies, and be part of a team that takes pride in doing things right, this is where you belong.