Mission Critical Senior Project Manager - Mechanical Construction

At Horwitz, we don’t just offer jobs- we build careers. For over 100 years, we’ve been a leader in HVAC, plumbing, electrical services, delivering exceptional service while fostering a supportive and innovative workplace. Joining our team means working with passionate professionals in a culture built on safety, accountability, professionalism, motivation, curiosity, and a can-do attitude.

We’re committed to your growth with training, mentorship, and advancement opportunities. Along with competitive benefits- you’ll be part of a company that values its employees and makes a positive impact in the community. Join Horwitz and become part of a legacy of excellence and opportunity.

The Mission Critical Senior Project Manager – Mechanical is responsible for leading large-scale, complex mechanical construction projects in mission-critical environments, including data centers, semiconductor facilities, and other high-tech facilities. This role oversees project execution from preconstruction through commissioning and closeout, ensuring financial performance, schedule adherence, and successful coordination of complex mechanical systems. As a leader, this position drives collaboration across project teams, builds strong customer relationships, and upholds Horwitz’s core values: Safe, Accountable, Professional, Motivated, Can Do, and Curious.

What You’ll Do:

• Lead the planning, management, and execution of large-scale mission-critical mechanical construction projects from preconstruction through closeout.
• Develop and maintain project schedules, staffing plans, labor forecasts, and execution strategies to ensure successful project delivery.
• Collaborate with field leadership on weekly work plans, look-ahead schedules, pull planning, and project coordination.
• Oversee mechanical systems, equipment procurement, subcontractors, vendors, and project stakeholders.
• Drive design, BIM coordination, and prefabrication processes to improve productivity and project efficiency.
• Manage project budgets, cost forecasting, billing, cash flow, and profitability while identifying financial risks and opportunities.
• Lead monthly forecasting and work-in-progress (WIP) reviews, monitoring labor productivity, project costs, and subcontractor performance.
• Review and negotiate contracts, manage change orders, and proactively address financial, operational, and scheduling risks.
• Partner with Preconstruction on estimating, pricing strategies, value engineering, and project alternatives.
• Lead and mentor Project Managers, Project Engineers, and project teams through coaching, collaboration, and accountability.
• Coordinate mechanical startup, testing, commissioning, and project closeout to meet project requirements and customer expectations.
• Build and maintain strong relationships with owners, general contractors, and industry partners while identifying opportunities for future business.
• Uphold Horwitz’s professional standards, safety expectations, and commitment to continuous improvement.
• Perform other duties as assigned.
• Conduct yourself in accordance with Horwitz core values: Safe, Accountable, Professional, Motivated, Can Do, and Curious.
• Get better every day.

Skills and Abilities:

• Strong technical knowledge of HVAC, process piping, plumbing, hydronic systems, and complex mechanical infrastructure.
• Proven ability to manage large-scale mechanical construction projects with accountability for budgets, schedules, and profitability.
• Strong understanding of construction contracts, procurement, scheduling, cost forecasting, and risk management.
• Experience managing labor productivity, change orders, subcontractor performance, and project financials.
• Ability to lead and mentor project teams while collaborating effectively with field leadership, engineering, and trade partners.
• Excellent communication, negotiation, leadership, and problem-solving skills.
• Ability to anticipate project challenges, develop solutions, and maintain strong customer relationships.

Education and Experience:

• 2-year technical associate degree or higher required.
• Significant project management experience in commercial or industrial mechanical construction.
• Direct experience managing mission-critical construction projects, including hyperscale data centers, semiconductor facilities, or other high-tech environments.
• Experience with chilled water systems, cooling systems, equipment plants, and process piping.
• Experience managing accelerated project schedules, phased turnover, and complex commissioning processes.
• Familiarity with mechanical prefabrication, BIM coordination, and design-assist or design-build construction.
• Experience managing large mechanical construction budgets and complex subcontractor scopes.
• Proficiency with Procore, Microsoft Project, COINS, Rivet, or similar project management platforms.
• Experience mentoring Project Managers and Project Engineers.

• Valid driver’s license and reliable transportation for jobsite travel