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FST Technical Services

Commissioning Engineer

Arlington, VA, United States

Salary is open for discussion/negotiation based on candidate experience $100k-$140k

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Job details

Pay: Salary is open for discussion/negotiation based on candidate experience $100k-$140k
Apply by: Jan 28, 2027
Posting language: English
Posted: Oct 30, 2026

Original job description

FST | TECHNICAL SERVICES

QUALITY ASSURANCE • QUALITY CONTROL • COMMISSIONINGCommissioning Engineer | PE Required Northern Virginia • Full-Time • Commercial / Industrial / Mission-Critical FacilitiesAbout FST Technical Services 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.Position Overview 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.Key Responsibilities

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.

Required Qualifications

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.

Technical Systems Experience

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.

Preferred Qualifications

Commissioning experience on data centers, large commercial buildings, industrial facilities, or other mission-critical projects.
Experience leading multi-discipline commissioning activities and integrated systems testing.
Knowledge of ASHRAE commissioning guidance, applicable codes, construction turnover, and operational readiness.
Strong documentation, communication, and technical problem-solving skills.

Work Environment & Physical Requirements Work takes place in active construction and operational facility environments. Must be able to walk and stand for extended periods, navigate stairs and ladders, access mechanical/electrical areas, wear required PPE, and lift up to 25 pounds as needed. Site conditions may include indoor and outdoor work.Why FST Join a growing technical services organization supporting sophisticated facilities and critical infrastructure. FST offers competitive compensation, comprehensive benefits, and opportunities for professional growth.Equal Employment Opportunity FST Technical Services is an Equal Opportunity Employer. Employment decisions are made without regard to any legally protected status.

Salary is open for discussion/negotiation based on candidate experience $100k-$140k

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More about this job

Skills

Quality control
Documentation
HVAC
Building automation
Ventilation systems
Design drawings
Solve ICT system problems
Energy efficiency
P.Eng.
Industrial engineering
Electrical engineering
Mechanical engineering
Construction management
Technical drawings
Troubleshoot
Alarm systems
Communication skills
Problem solving
Heavy lifting
Negotiation

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