Diesel Equipment Mechanic with F.D. Thomas, Inc.

ASRC Industrial•Oakland, CA

8d•$40 - $55•Onsite

About The Position

Are you a skilled and detail‑oriented Diesel Equipment Mechanic looking to make an impact on a high‑visibility, long‑term infrastructure project? At F.D. Thomas , we play a critical role in supporting essential overnight operations on the Oakland Bay Bridge , and we're seeking an experienced Diesel Equipment Mechanic to help keep our heavy equipment and support vehicles operating safely, reliably, and efficiently in a demanding high‑risk environment. This role is ideal for a mechanic who thrives in fast‑paced field conditions, understands preventative maintenance and diagnostics for diesel‑powered equipment, and takes pride in keeping mission‑critical assets running during complex overnight operations. You will be responsible for inspecting, servicing, troubleshooting, and repairing a wide range of construction and support equipment, ensuring compliance with manufacturer specifications, Caltrans requirements, and site‑specific safety standards. Your work will be essential to maintaining uninterrupted progress on industrial coating and equipment‑intensive activities occurring within live traffic corridors. This position is primarily night shift , with staggered start times designed to align with Bay Area traffic patterns, lane closure windows, and major regional events. Work is performed during low‑impact overnight hours to support safe maintenance and repair activities while minimizing disruption to the traveling public. The typical workweek ranges from 50 to 60 hours, reflecting the critical, around‑the‑clock nature of this long‑term, 5‑year bridge infrastructure project. ABOUT US: F.D. Thomas, Inc. (FDT) is one of the largest coating and specialty contractors in the United States with offices in California, Oregon, Washington, and the East Coast. F.D. Thomas, Inc. is headquartered in Central Point, OR. FDT is a wholly owned operating company of ASRC Industrial (AIS). AIS was founded in 2016 by Arctic Slope Regional Corporation (ASRC), an Alaska Native Corporation (ANC) established under the Alaska Native Claims Settlement Act of 1971. As part of an ANC all our operating companies are Minority Business Enterprises (MBE). We help our clients meet their diversity spending objectives while also providing sustainable returns for our nearly 13,500 Iñupiat shareholders. By hiring Great People , we can provide Great Work to our highly valued customers, as we continue to grow an Extraordinary Company ! WHAT YOU'LL DO: In this Diesel Equipment Mechanic role, you will support nightly bridge operations by performing on‑site inspection, maintenance, and repair of diesel‑powered construction equipment and support vehicles critical to ongoing work activities. You will monitor equipment condition throughout the shift, conduct routine and preventative maintenance, diagnose mechanical and electrical issues, and identify potential failures that could impact operations, worker safety, or project timelines. This role includes servicing engines, hydraulic systems, fuel systems, braking components, and auxiliary equipment, as well as verifying that machinery, tools, generators, and mobile equipment are operating safely and efficiently. You will ensure all maintenance and repair work complies with manufacturer specifications, Caltrans requirements, project standards, and site‑specific safety procedures while supporting industrial coating, heavy equipment, and roadway operations within active traffic corridors.

Requirements

3–5+ years hands‑on experience as a Diesel Mechanic/Field Service Tech with heavy construction equipment or mixed fleets.
Demonstrated ability to diagnose and repair engines, hydraulics, and electrical systems on equipment operating in heavy‑duty environments.
Proficient with diagnostic tools (multimeter, hydraulic pressure gauges), OEM/aftermarket scan tools, and service literature.
Able to read schematics (electrical/hydraulic) and follow preventive maintenance schedules.
Working knowledge of LOTO, machine guarding, hot work, and hazard communication.
Ability to apply site‑specific safety protocols in active traffic corridors and industrial work zones.
Willing and able to work primarily night shift with staggered start times; typical 50–60 hours/week .
Comfortable working outdoors around live traffic, at heights, and in elevated/noisy/low‑light environments with appropriate PPE.
Valid driver's license and clean driving record (CDL helpful but not required unless you want it).
Ability to obtain site access credentials and employer‑provided trainings (e.g., OSHA‑10/30 if required by contract).
Lift/pull/push up to ~50–75 lbs., frequent standing/kneeling/climbing, safe use of hand/power tools, and ability to work in awkward positions as needed.

Nice To Haves

Competent with welding/cutting for basic fabrication and field repairs (preferred).

Responsibilities

Overnight Equipment Support Perform on‑site inspections, preventative maintenance (PM), and repairs on diesel‑powered construction equipment and support vehicles during nightly bridge operations.
Prioritize and execute repairs within lane‑closure windows to keep work fronts moving and minimize downtime.
Diagnostics & Repairs Troubleshoot and repair engines, hydraulic systems, electrical systems, brake systems, fuel/DEF systems, cooling systems, and powertrains.
Diagnose fault codes with OEM software/scanners, document findings and corrective actions.
Asset Readiness & Compliance Verify safe operation of generators, compressors, light plants, pumps, welders, lifts (scissor/boom), forklifts, small tools, and service trucks before deployment.
Ensure all work complies with manufacturer specs, site‑specific safety plans, and Caltrans/contract requirements.
Preventative Maintenance Program Complete PM services (fluids, filters, torque checks, belts/hoses) at prescribed intervals; maintain accurate PM logs.
Track parts usage and recommend reorder levels, flag recurring failures for reliability improvements.
Safety & Work Controls Apply LOTO, hot‑work, confined space, and elevated work procedures as required by the task and location.
Maintain clean, organized, and spill‑controlled work areas; properly handle and dispose of fluids and waste.
Field Readiness & Mobility Operate a fully outfitted service truck; respond to breakdowns across multiple work zones within the bridge corridor.
Support equipment moves, refueling, battery service, tire service, and end‑of‑shift readiness.
Documentation & Communication Complete digital work orders with cause/correction details, parts, labor, and time stamps.
Communicate equipment status and risk to supervisors, superintendents, and traffic/safety teams.