Project Manager, HVAC Tech ​/ Heating Engineer, Mechanical Engineer

$140,000-$190,000 + Performance Bonus + 401K

Remote, United States

Zest Technical is partnering exclusively with a North American leader in the sustainable design and advanced manufacturing of custom air handling and liquid cooling systems. With decades of HVAC engineering and manufacturing expertise, they deliver energy-efficient solutions for mission-critical industries including hyperscale and modular data centers, healthcare, life sciences, semiconductors and advanced manufacturing.

Our client is expanding its Service organisation to support some of the world’s largest hyperscale data center projects. They are looking for an experienced Project Manager to lead onsite execution of complex HVAC service and construction programs.

You will be the on-site face of the business for customers, General Contractors (GCs) and mechanical and electrical trade partners. You will own execution across both air-side equipment (CRAC/CRAH units, air handling units, economizers) and chiller/water-side plant (chillers, cooling towers, pumps, piping). Your remit runs from rework and start-up through commissioning, warranty and field support, including BMS and controls integration, in uptime-critical Tier III/IV environments.

• Apply project methodologies to drive scalable, repeatable and cost-effective execution across mission-critical HVAC programs
• Lead internal and external teams (mechanical contractors, controls integrators, GCs, commissioning agents) across rework, start-up, commissioning, warranty and field support
• Lead execution across both air-side and chiller/water-side systems
• Coordinate Level 3-5 commissioning, including equipment start-up, functional performance testing and integrated systems testing (IST)
• Coordinate OEM technicians and commissioning agents to validate cooling capacity and redundancy design
• Track progress, risks and interdependencies across equipment delivery, refrigerant piping, ductwork and controls sequencing against construction schedules
• Ensure strict adherence to safety requirements including LOTO, confined space and hot work, particularly in live or near-live data halls
• Act as primary escalation point and strategic liaison with GCs, mechanical engineers and data center operators on scope, schedule and change management
• Oversee Superintendents and other onsite staff
• Represent the business at all GC and project meetings, with regular construction-site presence

• 7+ years of progressive experience in HVAC service operations or project management, ideally within mission-critical or data center environments
• Proven track record managing complex HVAC mechanical programs across both:
• Air-side systems: CRAC/CRAH units, air handlers, precision cooling and VRF
• Chiller/water-side systems: chillers, cooling towers, condenser water and chilled water piping
• Direct experience in data centers, hyperscale, colocation or other uptime-sensitive facilities strongly preferred
• Working knowledge of mechanical drawings and sequences of operation
• Working knowledge of BMS/controls platforms and protocols such as BACnet, Niagara and Modbus
• Experience with ERP/CRM systems, service management platforms and performance dashboards
• Mechanical or HVAC engineering background preferred; strong operational, business or technical program management experience within HVAC will also be considered
• Strong planning and follow-through, clear communication at all levels, a customer-first mindset, and composure under tight, shifting priorities

• Salary of $140,000-$190,000 depending on experience, plus performance bonus
• Medical, dental and vision insurance
• 401(k)
• Employee assistance program
• Paid time off
• A fast-growing, entrepreneurial environment supporting the AI infrastructure boom
• Genuine career progression, with a culture that promotes from within
• An inclusive, diversity-friendly workplace