Site O&M Lead

Site O&M Lead

Location: Marshfield, MO 

Work Arrangement: On-site | Project-Based

Position Overview

Prismecs is supporting a temporary 480V standby power system at a client site in Marshfield, Missouri. The plant consists of nine 1,250 kW Tier 4 diesel generators and will be operated and maintained by Prismecs for a 12-month assignment. Site-team mobilization is planned for the first week of November 2026. The Site O&M Lead will lead the on-site operations and maintenance team and serve as the primary Prismecs contact with the client. This role is responsible for safe and reliable plant operation, maintenance planning, site coordination, and team performance throughout the assignment.

Key Responsibilities

• Lead, schedule, and supervise the site O&M team, including operators and technicians.
  
• Prepare, implement, and manage the preventive maintenance plan while minimizing impact to client operations.
  
• Supervise day-to-day plant operations, generator start/stop coordination, and equipment performance.
  
• Serve as the primary on-site contact with the client; provide status updates and promptly escalate issues.
  
• Enforce HSE requirements, safe work practices, LOTO, fuel-handling procedures, and spill prevention/containment.
  
• Manage fuel, DEF, consumables, and spare parts and coordinate equipment service/support with suppliers.
  
• Maintain site logs, operating records, maintenance records, incident reports, and shift reports.
  
• Support commissioning, testing, and demobilization activities as required.
  

Requirements

Required Qualifications

• 7-10 years of diesel power plant experience, including experience leading an O&M team.
  
• Strong knowledge of diesel generators, 480V power distribution, and balance-of-plant equipment.
  
• Demonstrated experience preparing and managing preventive maintenance plans and supervising site operations.
  
• Strong leadership, communication, coordination, and client-facing skills.
  
• Working knowledge of HSE practices and site safety management.
  
• Valid driver's license and ability to pass background and pre-employment screening.
  

Preferred Qualifications

• Tier 4 diesel generator and aftertreatment (DEF/SCR) experience.
  
• Temporary power, bridge power, or standby power-system experience.
  
• Volvo diesel engine experience.
  
• OSHA 30 or equivalent safety certification.
  

U.S. Work Authorization & Location Requirement

U.S.-based candidates only. Candidates must currently be based in the United States, be able to work on site in Marshfield, Missouri (or relocate to the area), and be legally authorized to work in the U.S. for Prismecs without current or future employer sponsorship. Prismecs is not able to provide visa sponsorship for this position at this time.

Why Join This Project

• Lead a complete 12-month O&M assignment on a dedicated temporary power plant.
  
• Hands-on leadership role with direct responsibility for site execution, reliability, maintenance, and client communication.
  
• Work with Tier 4 diesel generation and 480V power-distribution equipment in a field environment.