Lead Diesel Mechanic – Job Description

Company: DLB Hauling, Excavating & Mechanic Services
Position Type: Full-Time
Location: 18541 Sparta Rd. Milford Va. 22514

Position Overview

DLB is seeking an experienced Lead Diesel Mechanic to oversee all shop operations, lead and mentor our mechanical team, and ensure high-quality, efficient repair work. The ideal candidate is a seasoned technician with exceptional diagnostic abilities, strong leadership skills, and a proven track record in diesel repair, preventative maintenance, and heavy equipment service.

This individual will serve as the shop’s go-to expert—capable of diagnosing issues that others cannot, maintaining repair standards, coordinating workflow, and supporting the growth of our in-house mechanic department.

Key Responsibilities

Technical & Diagnostic Skills

  • Perform advanced diagnostics on diesel engines, heavy trucks, trailers, and equipment.

  • Accurately identify complex mechanical, electrical, hydraulic, and drivability issues.

  • Oversee and verify repairs conducted by mechanics and apprentices.

  • Lead troubleshooting efforts when the team is unable to identify the issue.

Leadership & Team Management

  • Lead a team of mechanics and apprentices; provide training, guidance, and mentorship.

  • Hold regular shop meetings to discuss workflow, safety, performance, and updates.

  • Assign daily tasks and ensure work is completed efficiently and to quality standards.

  • Collaborate closely with the Shop Assistant to maintain organization, communication, and job tracking.

Operational Responsibilities

  • Maintain proper documentation for all repairs, parts usage, and work orders.

  • Ensure all paperwork is completed accurately and submitted on time.

  • Support scheduling and workflow to minimize downtime and improve shop productivity.

  • Assist with bringing in new work by communicating professionally with customers and vendors.

  • Oversee preventative maintenance (PMs) schedules and ensure PMs are completed on time.

Mechanical Expertise

  • Extensive knowledge in:

    • Diesel engines

    • Electrical systems

    • Trailer and truck braking systems

    • Aftertreatment systems (DEF, DPF, regen, etc.)

    • Suspension and steering

    • Hydraulics

    • Transmissions & driveline

    • Preventative maintenance

  • Ensure repairs meet DOT, safety, and manufacturer standards.

Safety & Compliance

  • Promote a safety-first culture within the shop.

  • Ensure all staff follow OSHA, DOT, and company safety procedures.

  • Assist with maintaining a clean, organized, and compliant work environment.

Qualifications

  • 7+ years of diesel repair experience (fleet, heavy truck, or heavy equipment).

  • 2+ years of leadership or lead technician experience preferred.

  • Proven ability to diagnose complex engine, electrical, and mechanical issues.

  • Strong communication skills; ability to lead meetings and coach a team.

  • Experience with repair software, work order systems, and diagnostic tools.

  • Must have your own professional-grade tools.

  • Valid driver’s license (CDL a plus).

  • Ability to work in a fast-paced environment and meet deadlines.

What We Offer

  • Competitive pay (based on experience).

  • Opportunities for leadership growth within a fast-growing company.

  • Supportive, team-focused environment.

  • Steady year-round work.

How to Apply


Apply in person at: 18541 Sparta RD. Milford Va. 22514 or conplete the requirements below.