Field & Shop Heavy Equipment Mechanic – On‑Call (Austin)

TerraFirma; Austin (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

TerraFirma, a startup delivering autonomous construction solutions, seeks a field-service maintenance technician to keep CAT D6/D8 dozers, CAT 336 excavators, and related heavy civil equipment running on-site and in the shop.

This hands-on, self-sufficient role covers routine maintenance, fueling, and real mechanical troubleshooting in the field. Expect on-call duties, extended hours, and a relocation to Austin, TX as needed.

Qualifications

• Hands-on experience diagnosing and repairing commercial earthworks equipment.
• Capable of scheduled maintenance and unplanned field repairs.
• Willingness to relocate to Austin, TX.

Responsibilities

• Diagnose, repair, and maintain CAT dozers and excavators, in shop or on active job sites.
• Perform routine maintenance including greasing, fluid checks, and scheduled service across the fleet.
• Fuel equipment on active job sites and manage a diesel fuel trailer to top off machines during idle periods or between operations.
• Provide basic maintenance and troubleshooting support for sensors, wiring, and hardware kits for semi-autonomous equipment.
• Track equipment condition, maintenance history, and parts inventory to keep the fleet running reliably.
• Respond quickly to minimize downtime and coordinate with operators and field teams to identify issues early and prioritize repairs.

Skills

Diesel engines

Hydraulic systems

Electrical systems

Independent worker

On-call readiness

Education

ASE or heavy equipment/diesel certifications

Job description

TerraFirma, a startup delivering autonomous construction solutions, seeks a field-service maintenance technician to keep CAT D6/D8 dozers, CAT 336 excavators, and related heavy civil equipment running on-site and in the shop.

This hands-on, self-sufficient role covers routine maintenance, fueling, and real mechanical troubleshooting in the field. Expect on-call duties, extended hours, and a relocation to Austin, TX as needed.