At Mechanical Systems Company LLC, we don't just complete projects, we own them. From complex design-builds to specialized spec work, we deliver cutting-edge, energy-efficient solutions for commercial and industrial clients. We're looking for a true HVAC professional who's ready to lead from the field and mentor the next generation of technicians. We're currently looking for a Senior Commercial HVAC Service Technician to take on a lead role with our team. If you've spent the last 10+ years mastering commercial and industrial HVAC systems - from chillers and boilers to cooling towers and rooftop units - this is the opportunity where your skills will be recognized, respected, and well-compensated. What We Offer: $40-$50 per hour, depending on experience Up to $5,000 hiring bonus Health Insurance: Multiple plans, 100% premium covered for employee Wellness Perks: $50/month toward your gym membership Company-Paid Life and Short-Term Disability Insurance 401(k) with 3% Company Match Paid Time Off: 2 weeks' vacation 6 paid holidays 5 paid sick days Tool & Gear Allowance, Vehicle Allowance & Mileage Reimbursement Employee Referral Bonuses Family-Friendly, Supportive Culture Key Job Responsibilities: Diagnosing, repairing, and maintaining complex commercial and industrial HVAC systems Hands-on work with boilers, pumps, cooling towers, rooftop units, and more Leading service projects and mentoring junior techs Representing our brand with professionalism and pride Performing fieldwork Monday-Friday, with occasional OT as needed Required Qualifications: 7+ years of commercial/industrial HVAC service experience Proven expertise in troubleshooting, diagnostics, and repairs Valid driver's license with an insurable record EPA Universal Certification NATE Certification is a plus Strong leadership, communication, and mentoring skills A commitment to quality work and safety