Commissioning Engineer

Liberty Personnel Services, Inc.; Memphis (MI); On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Bonus

Good Benefits

Job summary

Liberty Personnel Services, Inc. is seeking candidates for a Field-Based Position focusing on commissioning for water and wastewater treatment systems. The ideal applicant will have over 3 years of hands-on experience in commissioning and startup processes. Responsibilities include serving as the primary on-site liaison, coordinating activities, performing testing, and ensuring compliance with safety and quality standards. Offering a competitive salary package of $110,000 to $130,000 plus bonuses and benefits.

Qualifications

• Minimum 3+ years of stable commissioning, startup, or operations support experience.
• Hands-on experience with biological treatment processes and sludge processing preferred.
• Strong proficiency in reading P&IDs, control schematics, and process documentation.

Responsibilities

• Serve as primary on-site liaison during commissioning.
• Coordinate pre-commissioning and commissioning activities.
• Lead system walkdowns and punch list development.
• Perform functional testing and loop checks.
• Track punch list items to achieve completion milestones.

Skills

US Citizenship or Permanent US Residency

Stable commissioning experience

Hands-on experience with treatment processes

Knowledge of AWWA standards and OSHA requirements

Execution of field commissioning

Experience coordinating subcontractors

Ability to manage multiple systems

Proficiency read P&IDs and documentation

Clear communication skills

Track record of safety and regulatory compliance

Job description

$110,000 to $130,000 + Bonus + Good Benefits

Field-Based Position

Site-based commissioning role focused on infrastructure projects, supporting field execution, system turnover, and client interface through pre-commissioning, commissioning, and startup of municipal and industrial treatment systems. Embedded at active plant construction and retrofit sites with ownership of process system readiness, performance validation, and handover to operations.

Required Experience

• US Citizenship or Permanent US Residency (Green Card)
• Minimum 3+ years of stable commissioning, startup, or operations support experience within water or wastewater treatment facilities (municipal or industrial required)
• Hands‑on experience with treatment processes such as biological treatment (activated sludge), membrane systems (MBR), filtration, disinfection, and sludge processing preferred
• Working knowledge of AWWA standards, WEF practices, and OSHA requirements as applied to treatment plant construction and startup
• Demonstrated ability to execute field commissioning for process equipment, pumping systems, and plant‑wide controls (PLC/SCADA)
• Experience coordinating subcontractors, OEMs, and owner representatives during multi‑phase plant startup
• Ability to manage multiple systems concurrently in schedule‑driven commissioning environments
• Strong proficiency reading P&IDs, control schematics, and process documentation
• Clear, direct communication in field and client‑facing environments
• Proven track record of safety, quality control, and regulatory compliance during plant commissioning and startup

Core Responsibilities

• Serve as primary on‑site liaison for owner/operators, EPC teams, subcontractors, and equipment vendors during commissioning of water and wastewater treatment systems
• Coordinate pre‑commissioning and commissioning activities across treatment processes including headworks, screening, grit removal, primary/secondary treatment, filtration, disinfection, sludge handling, and pumping systems
• Lead system walkdowns, punch list development, and turnover package completion for process, mechanical, and electrical/instrumentation scopes
• Execute commissioning plans for pumps, blowers, clarifiers, chemical feed systems, UV/chlorination systems, and SCADA/controls integration
• Perform functional testing, loop checks, wet testing, and process start‑up to validate system performance against design intent and regulatory requirements
• Track and drive punch list items to closure to achieve mechanical completion, substantial completion, and final acceptance milestones
• Coordinate system readiness across civil, mechanical, electrical, and controls scopes in a multi‑discipline construction environment
• Review and interpret P&IDs, process flow diagrams, control narratives, and specifications specific to water/wastewater treatment processes
• Conduct field inspections to verify compliance with applicable standards (AWWA, WEF, OSHA, project specifications) and quality requirements
• Interface with engineering, controls integrators, and operations teams to troubleshoot process and equipment issues during startup
• Maintain detailed commissioning logs, test documentation, and turnover records required for owner acceptance and regulatory compliance