Senior Mechanical Commissioning Project Engineer - Data Center

Lead the Systems That Keep Critical Infrastructure Running At FST Technical Services, we ensure the most complex facilities operate exactly as intended. Our Commissioning division partners with clients across data centers and mission-critical environments to validate that systems are designed, installed, and performing at the highest level. We are seeking a Senior Mechanical Project Engineer who brings deep technical expertise, field leadership, and the ability to drive outcomes in high-performance environments. This is not a documentation-driven role. This is a position for someone who: Owns system performance from design through execution Understands how complex mechanical systems operate as a whole Can identify and solve issues before they impact operations You will work on large-scale, mission-critical data center projects where performance, reliability, and precision are non-negotiable. Project Leadership & Execution Lead commissioning activities across the full lifecycle Execute functional testing, witness testing, and system validation Manage assignments within schedule, budget, and quality expectations Technical Expertise & Problem Solving Evaluate HVAC, chillers, boilers, pumps, and automation systems Troubleshoot system performance issues Review design documentation Client Engagement Lead meetings and communicate findings Build relationships with clients and contractors Operational Contributions Complete reports and manage time and expenses Team Development Mentor junior engineers and support training CoreQualificationsDegree in HVACR, Mechanical, Electrical Engineering or related field 7+ years experience or 3+ years commissioning Data center experience required Technical Capabilities Experience with HVAC, controls, automation, fire safety systems Ability to read construction documents Professional SkillsStrong communication and problem-solving skills