Commissioning Field Engineer / Project Engineer

FST Technical Services is one of the leading high-tech manufacturing/facilities QAQC and Cx firms in the country. We partner with clients for quality assurance in the design, construction, and post-acceptance phases of building projects. We ensure that equipment in mechanical, electrical, plumbing, and associated systems are designed, installed, and functionally tested to meet the clients’ requirements and design intent. We are seeking a Mechanical Commissioning Field Engineer / Project Engineer with 2+ years of experience supporting industrial and commercial building systems. This role will support field inspections, commissioning activities, equipment verification, and functional testing on complex construction projects including semiconductor, pharmaceutical, manufacturing, commercial, and mission critical facilities. Candidates may come from either a traditional engineering background or a skilled trades/mechanical systems background with relevant field experience. Responsibilities Perform field inspections of mechanical and HVAC systems during construction and commissioning phases Support commissioning and start-up activities for mechanical building systems Verify installations comply with project drawings, specifications, codes, and quality standards Assist with functional performance testing of HVAC and mechanical equipment Coordinate with contractors, owners, engineers, and commissioning teams to resolve field issues Document deficiencies, observations, and corrective actions Participate in equipment start-up, system turnover, and commissioning activities Attend project meetings and provide field updates and reporting Review construction documents, submittals, and installation drawings Support building automation system (BAS/BMS) point-to-point verification and operational testing Maintain project documentation including reports, checklists, and commissioning records Follow all project safety requirements and company safety policies Systems & Equipment Experience Preferred Air handling units (AHUs) Chillers and cooling systems Boilers and hydronic systems Pumps, motors, and VFDs HVAC ductwork and piping systems Building Automation Systems (BAS/BMS) Exhaust and ventilation systems Industrial mechanical systems Cleanroom HVAC systems (preferred) Qualifications 2+ years of experience in commissioning, field engineering, mechanical inspection, HVAC systems, building automation, or industrial construction Background in Mechanical Engineering, Construction Management, Engineering Technology, HVAC Technology, Building Systems, or related trades experience Ability to read and interpret construction drawings, specifications, and P&IDs Basic understanding of HVAC controls and building automation systems Knowledge of mechanical installation practices and field coordination Strong communication and documentation skills Ability to work in active construction and industrial environments Proficiency with Microsoft Office and standard construction software platforms Ability to travel to project sites as required Preferred Qualifications OSHA 10 or OSHA 30 certification Experience on pharmaceutical, semiconductor, manufacturing, or mission critical projects Exposure to commissioning processes and functional testing Experience with Procore, Bluebeam, BIM 360, or similar software TAB, commissioning, or controls experience is a plus Military mechanical or technical experience considered Physical Requirements Ability to walk active construction sites daily Ability to climb ladders and access mechanical spaces Ability to lift up to 50 pounds Ability to work indoors and outdoors in varying site conditions Salary Range: $75,000 - $105,000 depending on experience FST Technical does not offer employment-based visa sponsorship for this position. Applicants must be legally authorized to work in the United States without the need for employer sponsorship now or in the future.