Commissioning Engineer Contract Jobs in Iowa (NOW HIRING)

Job Title: Site Engineering Liaison / Field Engineer Location: Marshalltown Iowa Type: Contract Assignment Duration: 18–24 months (project-based) (Starting August 2026) Role Summary System One is recruiting for Site Engineering Liaison / Field Engineer will provide on-site technical support and oversight for the Owner on a 3x0 F-class simple cycle power generation project in Iowa. This position is a key member of the Owners’ Engineer (OE) team and will serve as the primary engineering interface between the jobsite and the home office engineering leads (mechanical, electrical, I&C, civil/structural, and project controls). The role focuses on construction-phase engineering support, field issue resolution, and quality/technical oversight of the EPC contractor and major equipment suppliers, ensuring that the facility is constructed in accordance with contract requirements, design documents, codes/standards, and the Owner’s expectations for safety, quality, cost, and schedule. Site Engineering Liaison / Field Engineer Responsibilities 1. OE Technical & Construction Support

• Provide day-to-day on-site engineering support during construction and start-up for a 3x0 F-class simple cycle facility.
• Review, interpret, and clarify IFC design drawings, data sheets, and vendor documents for field personnel and the Owner.
• Support OE QA compliance reviews to verify that the EPC contractor’s work meets contractual, code, and industry best practices.
• Identify potential design or constructability issues early and coordinate resolution with home office engineering leads.

• Act as the primary technical liaison between the site and the OE home office:
  • Communicate field conditions, nonconformances, RFIs, and changes that require engineering or owner input.
  • Coordinate timely responses to RFIs, NCRs, field change requests, and design deviations with home office discipline leads.
  • Provide feedback from the field to support design updates, and as?built documentation.
• Participate in regular project coordination calls/meetings with the home office, providing concise updates on technical, quality, and constructability topics.

• Support the Owner and OE Project Manager in technical interactions with the EPC contractor, construction subcontractors, and major equipment OEMs (e.g., gas turbine, generator, balance of plant systems).
• Attend and contribute to progress, coordination, and technical meetings at site, clearly representing OE/Owner technical interests.
• Assist in the review and verification of contractor submittals, method statements, test procedures, and commissioning plans from a technical perspective.

• Provide on-site technical observation of construction and installation activities, focusing on compliance with design documents, manufacturer requirements, and applicable codes/standards.
• Support OE and Owner quality surveillance activities; review inspection/test results, punchlists, and corrective actions from an engineering standpoint.
• Help verify that mechanical, electrical, civil/structural, and I&C installations are suitable for safe and reliable operation.

• Perform field engineering assessments to support problem solving and resolution of unexpected site conditions or design conflicts.
• Work with home office leads to develop and document technically sound solutions to field issues (e.g., design clarifications, minor redesigns, field adjustments).
• Support OE review of change orders and claims from a technical perspective, including scope, basis, and potential impacts.

• Provide engineering support during system turnover
• Assist in the review and evaluation of pre-functional checks, functional tests, performance tests, and reliability runs to confirm alignment with contract and design requirements.
• Help track and resolve punchlist and start-up issues requiring engineering input.

• Promote and support site safety culture, working in alignment with Owner, EPC, and OE safety programs and procedures.
• Help confirm that work complies with environmental, permitting, and regulatory requirements, escalating potential issues to the OE and Owner as appropriate.