Wastewater Treatment Systems Engineer - Fernald, OH

About RSI

RSI is a dynamic group of companies that has provided services to major federal clients and Fortune 500 engineering and construction companies since 1996. We have experience in complex, highly regulated markets providing environmental, nuclear, construction management, project delivery, and specialty professional services while maintaining an excellent safety record.

We offer a full range of benefits including a generous PTO plan, paid holidays, FEHB medical, dental, vision, 401K (100% match up to 4% eligible compensation) and 100% immediate vesting, basic and supplemental life insurance, and short- and long-term disability.

RSI is headquartered in Oak Ridge, Tennessee, and is a wholly owned operating company of ASRC Industrial (AIS). AIS is a wholly owned operating company of Arctic Slope Regional Corporation (ASRC), an Alaska Native Corporation (ANC). Through ASRC, we are a certified Minority Business Enterprise (MBE) and Small Disadvantaged Business (SDB), and we also offer 8(a) options.

RSI is recruiting an Operations Engineer who will be responsible for the technical operation, maintenance, and optimization of wastewater treatment facilities and infrastructure to ensure regulatory compliance and operational efficiency. This role applies mechanical engineering principles to ensure the reliability of site operations and treatment systems through hands‑on field assessment, troubleshooting, and project support.

Job Title: Wastewater Treatment Systems Engineer
Location(s): Fernald, OH
Status: Full-Time
FLSA: Exempt

Hiring Range: $65,000.00 -$75,000.00 per year. (The anticipated starting salary is based on the posted minimum requirements for this position. The offered salary will be based upon the selected applicant’s education, training, and experience.)

The position requires 50% time in the field. Travel may be required 10% of the time.

• Perform regular field inspections and technical assessments of site infrastructure, including groundwater and leachate treatment systems.
• Develop and maintain operational procedures.
• Collect, manage and report operational data.
• Troubleshoot and oversee repairs for mechanical components such as HVAC systems, pumps, motors, piping, valves, and Variable Frequency Drives (VFDs).
• Monitor, troubleshoot, and support the maintenance of Programmable Logic Controllers (PLCs) and associated control logic for site treatment and infrastructure.
• Participate in project design reviews to provide input from a mechanical engineering and control system perspective.
• Interact with and oversee subcontractors and vendors.

• Bachelor’s degree in mechanical engineering, mechanical engineering technology, environmental engineering, or related field.
• 0-5 years of relevant experience in industrial maintenance, wastewater treatment, or field engineering.

• Valid Driver’s License.

• Proficient in mechanical systems and fluid dynamics processes. Preferred skill set in industrial water treatment processes.
• Oversee the installation and commissioning of pumps, valves, instrumentation, and control systems programmable logic controls and supervisory control and data acquisition (PLCs/SCADA).
• Demonstrated ability to perform hands‑on field work, including physical inspections and technical troubleshooting in an outdoor/industrial environment.
• Familiarity with relevant industry standards and regulations related to mechanical systems and environmental controls.
• Proficiency with piping and instrumentation diagrams (P&IDs), CAD software, automation/control platforms, and environmental compliance testing
• Excellent communicator, both verbally and in…