Site O&M Lead

Scalable Energy Systems Engineered for Reliability

We design, deploy, and support high-performance power infrastructure to maximize uptime and operational reliability.

Location: Marshfield, MO

Work Arrangement: On-site | Project-Based

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.

• Lead, schedule, and supervise the site O&Mteam, 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 theclient; provide status updates and promptly escape issues.
• Enforce HSE requirements, safe work practices,LOTO, fuel-handling procedures, and spill prevention/containment.
• Manage fuel, DEF, consumables, and spare partsand 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.

• 7-10 years of diesel power plant experience,including experience leading an O&M team.
• Strong knowledge of diesel generators, 480
  
  Vpower 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.

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

U.S.

-based candidates only. Candidates must currently be based inthe 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 Prismecswithout current or future employer sponsorship. Prismecs is not able to provide visa sponsorship for this position at this time.

• Lead a complete 12-month O&M assignment ona 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 480
  
  Vpower-distribution equipment in a field environment.