Casey O'Neill

Heavy Equipment Technician / Auto Mechanic / Welder

Professional Summary

Skilled Heavy Equipment Technician with over 10 years of experience supporting commercial tree care operations. Extensive background in welding, fabrication, drivetrain repair, engine rebuilds, and emergency field repairs. Proven ability to work independently in outdoor environments year-round while maintaining safety, efficiency, and equipment reliability.

Work Experience

On-Site Technician / Mechanic

O’Neills Tree Care — 2014–2025

Served as the primary on-site technician responsible for maintaining all company equipment and facilities

Performed structural and fabrication repairs including trailer frame and deck repairs, log truck rigging repairs, and chipper feed drum and body repairs

Utilized MIG, TIG, and stick welding for equipment, structural, and emergency field repairs

Conducted full-spectrum mechanical work including drivetrain repairs, engine rebuilds, diagnostics, and preventative maintenance

Responded to breakdowns in the field, improvising safe and effective solutions to minimize downtime

Maintained operational readiness of heavy-duty trucks, trailers, and tree care machinery

Worked outdoors year-round in all weather conditions while meeting demanding production schedules

Ensured all repairs met safety standards and supported continuous daily operations

Technical Skills

Heavy Equipment & Fleet Maintenance

Engine Rebuilds & Drivetrain Repair

Welding: MIG, TIG, Stick

Structural Fabrication & Repair

Trailer & Frame Repair

Log Truck Rigging Repair

Chipper Feed Drum & Body Repair

Preventative Maintenance & Diagnostics

Emergency Field Repairs

Outdoor / All-Weather Operations

Strengths

Strong mechanical aptitude

Independent and self-directed

Creative problem solver under pressure

High attention to safety and durability

Reliable, adaptable, and hardworking