Field Technician — PM & Test, Oil & Gas / Industrial

Riggs CAT; Little Rock (AR); On-site; USD 42,000 - 65,000; Full time

Job summary

Riggs CAT is hiring Field Technicians at two levels to service generator sets, switchgear, and related power equipment at client sites. Level 1 focuses on preventive maintenance and testing, while Level 2 targets diesel and gas engine overhaul and advanced diagnostics in Oil & Gas applications.

Roles require hands-on mechanical aptitude, safety training, and willingness to travel for training and field assignments.

Qualifications

• Experience in field service for generator sets, switchgear, or related critical power equipment.
• Experience with diesel or gas engines and industrial power equipment.
• Strong safety awareness, including arc flash and lockout/tagout procedures.
• Ability to diagnose issues, interpret results, and document findings clearly.

Responsibilities

• Perform preventive maintenance and inspections on generator sets and switchgear using checklists.
• Set up and run load bank tests and interpret results.
• Service automatic transfer switches and low/medium-voltage switchgear.
• Diagnose issues and document findings for clients and internal tracking.
• Level 2: perform top-end and major engine overhauls; support G3600/G3500 applications.

Skills

Field service

Diesel engines

Electrical safety

Troubleshooting

PM testing

Documentation

Willingness to travel

Job description

Riggs CAT

Description

Riggs Cat Power & Energy is hiring Field Technicians at two levels. PM/Test Techs perform preventive maintenance, load bank testing, and inspections on generator sets and switchgear. Oil & Gas / Industrial Techs diagnose, overhaul, and maintain gas and diesel industrial engines in oil & gas compression and power applications, from the G3600 and G3500 down to C9 and 3300-series, including frac pump engines.

Level 1 is the operational backbone that keeps commissioned power systems running, pairing electric power fundamentals with disciplined, hands‑on PM and testing. Level 2 is our deepest mechanical and engine specialization in the field and the technical backbone of our Oil & Gas (Power) fleets. At both levels you work on running equipment at client sites.

Levels and responsibilities

Level 1: PM/Test Tech

Typical background: Experience maintaining generator sets, switchgear, or similar critical power equipment

• Perform preventive maintenance and inspections on generator sets and switchgear using standard checklists
• Set up and run load bank tests, building your skill at interpreting results on the job
• Service automatic transfer switches, building troubleshooting skill on the job
• Work on low- and medium-voltage switchgear, learning startup procedures on the job
• Work with EMCP generator control panels at a basic level
• Diagnose issues found during PM and document findings clearly for clients and internal tracking

Level 2: Oil & Gas / Industrial Tech

Typical background: Prior diesel or gas engine mechanic experience in heavy equipment, industrial engines, or oilfield engines, with hands‑on teardown and rebuild experience

• Diagnose and troubleshoot gas and diesel engines, including air/fuel ratio tuning, ignition systems, and lean burn, stoichiometric, and low-emission natural gas configurations
• Service electronically controlled (ADEM and other ECM-based) and mechanically controlled engines, from 3600-series down to C9 and 3300-series
• Perform top-end and major overhauls, including cylinder head, crankshaft/camshaft, and common rail fuel system work
• Support G3600 and G3500 application, installation, and performance work
• Use Applied Failure Analysis (visual exam, wear patterns, fracture analysis) to set the repair plan
• Follow a structured diagnostic method, such as the Caterpillar 7-Step Diagnostic Process or an equivalent OEM method

Requirements

What you bring

Level 1: PM/Test Tech

Required:

• Experience maintaining generator sets, switchgear, or similar critical power equipment
• Comfort with checklist-driven maintenance and diagnosing issues found during PM
• Electrical safety knowledge, including arc flash and lockout/tagout
• Ability to explain the purpose and basic procedure of a load bank test

Nice to have:

• Cat Electric Power I and II (CEP I/II), or equivalent generator/switchgear certification
• ATS Foundations Parts 1 & 2; Switchgear Basics (Low and Medium Voltage); Load Banking Class
• Experience with switchgear or ATS brands common in our client base

Level 2: Oil & Gas / Industrial Tech

Required:

• Prior diesel or gas engine mechanic experience in heavy equipment, industrial engines, or oilfield engines
• Hands‑on teardown and rebuild experience with precision measurement tools
• Willingness to travel for periodic training and in‑territory field work
• Basic electrical aptitude is a plus, but not the focus of this level

Nice to have:

• Experience on large-bore gas or diesel engines (Cat G3600, G3500, 3500 series, or comparable engines from other manufacturers)
• Familiarity with ADEM control systems
• G3600 Master Mechanic / Commissioning Qualification Assessment, or willingness to pursue it
• Gas Engine Rating Pro (GERP); G3500/G3600 ADEM III Controls; Applied Failure Analysis I & II
• Industrial Power engine family training; Gas Engine Performance (G3300/CG137‑G3500), CG170 and CG130-series training
• Diesel training: 3500 Master Mechanic, Pressure Pumping 3500 Engine Systems Troubleshooting, Tier 4 Final Emissions Systems Diagnostics, Diesel Engine Systems Troubleshooting
• Any Cat Electric Power (CEP) coursework

How you work

• Disciplined and thorough, because PM work is only as good as its consistency
• Methodical and detail-oriented in diagnostics, never guessing with parts
• Safety‑first around energized and running equipment
• Comfortable working independently in the field, with clear written documentation of findings

IMPORTANT INFORMATION

Must be able to pass work related pre‑employment physical demands. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is frequently required to sit. The employee is occasionally required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms; stoop, kneel, crouch, or crawl and talk or hear. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this Job, the employee is occasionally exposed to moving mechanical parts; fumes or airborne particles; outside weather conditions and vibration. The noise level in the work environment is usually moderate.

Will be required to drive for extended periods of time.

The job description is subject to change by the employer as the needs of the employer and requirements of the job change.

EEO/AA

Non‑Exempt; Hourly

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. 41 CFR 60-1.35(c)

Equal employment opportunity, including veterans and individuals with disabilities.