Commissioning Engineer

FST | TECHNICAL SERVICES

QUALITY ASSURANCE
• QUALITY CONTROL
• COMMISSIONING

Commissioning Engineer | PE Required

Northern Virginia
• Full-Time
• Commercial / Industrial / Mission-Critical Facilities

FST Technical Services provides quality assurance, quality control, and commissioning expertise for complex projects across the data center, semiconductor, life sciences, industrial, and commercial construction sectors.

FST Technical Services is seeking a PE-licensed Commissioning Engineer to support complex building and industrial systems projects in Northern Virginia. This position focuses on commissioning, functional performance, and integration of mechanical, electrical, controls, and life-safety systems. The successful candidate understands not only individual equipment performance, but also how interconnected systems operate together to deliver safe, reliable, and efficient facilities.

• Plan, coordinate, and execute commissioning activities, including commissioning plans, checklists, functional performance testing (FPT), integrated systems testing (IST), and final documentation.
• Verify installation, startup, operation, and interoperability of HVAC, building automation, electrical distribution, and life-safety systems against design intent and sequences of operation.
• Evaluate pumps, fans, motors, air ventilation systems, chillers, boilers, steam distribution, heat absorption/thermal systems, and associated controls.
• Review design drawings, specifications, submittals, control diagrams, and sequences of operation; identify commissioning risks and performance deficiencies.
• Troubleshoot system interfaces, coordinate corrective action with contractors and design teams, and retest to verify resolution.
• Assess building performance, system optimization, operational reliability, and energy-efficiency opportunities.
• Coordinate with owners, general contractors, trade partners, design engineers, equipment vendors, and facility operations teams; maintain issue logs and deliver clear commissioning reports.

• Active Professional Engineer (PE) license required; ability to obtain Virginia licensure by comity/reciprocity if required for the assignment.
• At least 3 years of direct, hands-on commissioning experience with commercial, industrial, or mission-critical building systems.
• At least 5 years of total relevant experience in commissioning-related engineering, construction engineering, industrial engineering, commercial construction engineering, or a closely related technical field. The 3 years of commissioning experience may count toward the 5-year total.
• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Construction Management, or a related field preferred; extensive relevant field engineering experience may be considered in lieu of a degree, provided the candidate meets PE licensure and experience requirements.
• Demonstrated ability to manage or oversee interconnected mechanical, electrical, and building automation systems; read technical drawings and troubleshoot sequences of operation.
• Experience coordinating field activities with contractors, engineers, and facility stakeholders.

• Mechanical: HVAC, air handling and ventilation, pumps, fans, motors, chillers, boilers, chilled-water and steam distribution, thermal/heat-absorption systems.
• Automation and controls: BAS/BMS, controls integration, sequences of operation, trending, functional testing, and system optimization.
• Electrical and life safety: electrical distribution, motor controls, fire alarm systems, and cross-system interface testing.

• Commissioning experience on data centers, large commercial…