Commissioning Engineer

MAS creates custom-engineered thermal management solutions for markets that thrive on flexibility, creativity, and bold ideas. From humble beginnings to becoming an emergent multi‑brand manufacturing leader, we’ve grown by bringing in great people and empowering them to do great work. At MAS, we believe innovation happens when everyone contributes, diversity of thought is celebrated, and people feel supported in their growth. We take pride in working hard together—tackling challenges, solving problems, and having fun along the way. As we expand into both emerging and mission-critical industries, we stay committed to delivering efficient, competitive, and sustainable heating and cooling technologies. And throughout your career here, you will have the chance to directly shape the foundation for what's next in our industry. Position Summary: In this role, you will be working on our Daedex and DeepCoolAI line of products to bring new technology into mission-critical markets like data centers, battery plants, chip manufacturing and more. We are seeking a qualified, innovative Commissioning Project Engineer to join our growing organization. The purpose of the role is to lead the end-to-end commissioning process for HVAC and cooling systems in data centers. This includes leading the commissioning team, managing technical deliverables, coordinating with engineering disciplines, and validating all systems meet design intent, operational reliability, and compliance with industry standards. The candidate will be working with liquid coolant distribution units and HVAC systems and components including but not limited to: enthalpy & sensible plate heat exchangers, energy recovery wheels, gas and electric heaters, hot water coils, cold water coils, DX coils, filter racks, control dampers, fan array systems, coolant distribution units, etc. Travel to facilities is required, 40% - 75%+ Key Responsibilities: Commissioning Execution Oversee integrated system testing for HVAC systems, including CRAH units, chillers, cooling towers, economizers, coolant distribution units, and associated controls. Lead and mentor a team of commissioning engineers and/or technicians to develop a plan, coordinate resources, and ensure successful outcomes for safety, quality, on-time-completion, and cost optimization. Validate sequences of operation for building management systems and ensure proper integration with electrical and IT systems. Manage load bank testing and thermal performance verification under simulated and live conditions. Ensure Team management of Materials and Equipment required to support craft including Tool Cribs and Materials Storage Technical Documentation Review mechanical design drawings, submittals, and shop drawings for compliance with project specifications. Approve commissioning scripts, functional test procedures, and maintain redline documentation for as-built conditions. Generate final commissioning reports including test results, deficiencies, and corrective actions. Develop and maintain comprehensive documentation, including work instructions and process plans, ensuring compliance with quality standards like AS9100 and IQ/OQ/PQ. Awareness of UL3223 and the Certification Deliverables Ensure your staff Documents customer/site/vendor issues into relevant Customer Construction Software (i.e. Procore) to support Change orders or Constrained Work Stoppage Coordination & Interface Develop and manage project schedules, budgets, and resource plans for commissioning activities. Interface with mechanical engineers, controls specialists, contractors, vendors, and electrical teams to ensure timely delivery and installation of air handling and cooling systems and resolve technical issues rapidly and thoroughly. Ensure alignment with industry guidelines and client-specific commissioning standards. Risk & Reliability Identify potential failure points in cooling infrastructure and implement mitigation strategies. Validate N+1 or 2N redundancy configurations and ensure compliance with data center requirements. Qualifications & Requirements: Required: Bachelor’s degree in mechanical engineering or related discipline Minimum 3 years in HVAC commissioning for mission-critical facilities Deep knowledge of chilled water systems and airflow management Proven ability to manage complex projects with multiple stakeholders Familiarity with commissioning software tools and building management system platforms Strong understanding of industry and ISO standards Strong verbal and written skills to explain technical concepts to non-technical stakeholders and write rigorous technical reports Willing and able to travel frequently and for extended periods of time up to 50% at peak loads but average less than 25% Proficient in Microsoft Office Suite Preferred: PMP or CxA certification Lean Six Sigma certification Key Competencies: Ability to work independently with a high degree of initiative and attention to small details Must work well in a team setting and have great verbal and written communication skills Organizational skills Efficient with time management Critical thinker / Problem Solver / Curious / Self-motivated learner Good attitude and motivated personality are key in this role Solution focused mindset when faced with production challenges Benefits: Medical, vision, and dental plans Short-term and long-term disability insurance Group term life insurance coverage HSA plan available Paid holidays and generous PTO policy 401k matching Company paid events Annual safety shoe allowance Education assistance program EEO Statement: MAS HVAC is committed to creating a diverse and inclusive workplace where all individuals are treated with respect and dignity. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, marital status, veteran status, political affiliation, or any other legally protected status. Employment decisions at MAS HVAC are based on merit, qualifications, and business needs. We prohibit discrimination and harassment of any kind and actively promote a culture of fairness, equity, and opportunity. We also provide reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs, practices, or observances, in accordance with applicable laws.