David Hillegas

• Solo Fleet Management: Maintained 100% operational accountability and ownership as the sole mechanic responsible for a high-utilization fleet comprising 53 highway vehicles, 14 trailers, and 9 pieces of major heavy equipment (including excavators, skid steers, and tractors).
• Digital Asset Tracking: Developed closed-loop system using ServiceTitan, E-Tech, and advanced Microsoft Excel configurations to track services, diagnostic histories, and fleet repair timelines, enhancing data accuracy and accessibility.
• Cost Avoidance: Eliminated external commercial garage overhead by executing 100% of complex diesel overhauls, advanced hydraulic repairs, and automotive electrical diagnostics in-house.
• Operational Uptime: Engineered and implemented rigorous preventative maintenance cycle, reducing mechanical failure rates and ensuring uninterrupted deployment of critical service plumbing units on-site.
• Cost Avoidance: Executed all complex diesel overhauls, advanced hydraulic repairs, and automotive electrical diagnostics in-house, eliminating external commercial garage overhead and maximizing cost savings.

• Repaired and optimized commercial-grade network equipment and deployment software, preserving functional operations and ensuring data retention.
• Assessed software and application malfunctions, deploying root-cause technical solutions to minimize downtime across client networks.
• Configured and maintained network systems to ensure seamless connectivity across all devices.
• Diagnosed and resolved technical issues, enhancing system performance and user satisfaction.
• Collaborated with cross-functional teams to implement software updates and upgrades efficiently.

• Directed maintenance and field diagnostics for extensive civil construction fleet, including cranes, manlifts, dozers, excavators, heavy-duty highway trucks, side-by-sides, and forklifts, ensuring optimal equipment performance.
• Spearheaded electrical diagnostics and mechanical repairs on industrial portable generators and heavy-duty air compressors, enhancing reliability and functionality.
• Diagnosed and repaired mechanical issues on fleet vehicles to ensure optimal performance.
• Conducted routine inspections and maintenance to enhance vehicle reliability and safety standards.
• Collaborated with team members to streamline repair processes, reducing turnaround times.

• Executed complete engine rebuilds and system overhauls for concrete mixing equipment and commercial logistics vehicles, enhancing operational reliability.
• Led emergency roadside diagnostics and tactical repairs for vehicle recovery under high-pressure conditions, ensuring minimal downtime and safety compliance.
• Diagnosed mechanical issues to ensure optimal equipment performance and reliability.
• Performed routine maintenance on heavy machinery to enhance operational efficiency.
• Repaired hydraulic systems, electrical components, and engines to minimize downtime.

General studies