Mechanical Construction Project Manager III

Job Description

Job DescriptionMantis Innovation provides managed facility services and turnkey program management with technology-enabled solutions that target the entire building footprint. We look at the entire facility—inside and out—and can impact 70% of what a building operator allocates critical budget dollars toward, including: Strategic electricity and natural gas procurement, renewable energy, and demand response; climate impact reduction and reporting, net zero strategies, and sustainability planning; roofing, solar, HVAC assessment management, pavement, building envelope, data center optimization, and EV charging; lighting/LED retrofits, HVAC/mechanical systems, and BMS/BAS improvements and implementation.
We deliver big mechanical projects for commercial and industrial clients. This role leads HVAC, boiler, chiller, and piping upgrades from start to finish. You run the field work, the schedule, and the client communication. You keep the job moving, the team aligned, and the work documented.
This is a senior role. You'll handle large, complex Boston-area projects. You must be able to manage field crews, read drawings, solve problems fast, and track every detail. What You'll Do

• Lead mechanical construction projects from planning to closeout
• Oversee HVAC, boiler, chiller, and piping retrofits
• Run site safety, quality checks, and daily coordination
• Build schedules, budgets, and project plans.
• Manage contractors, vendors, and internal teams.
• Drive documentation: RFIs, submittals, change orders, closeout.
• Serve as the main client contact
• Handle financial tracking and forecasting
• Travel to Boston-area sites as needed

What You Bring

• 5-10 years of mechanical construction or mechanical PM work
• Strong HVAC, boiler, and chiller knowledge
• Ability to manage field teams and busy job sites
• Strong schedule and budget control
• Solid documentation skills (Procore a plus)
• Able to read plans and mechanical drawings
• Bachelor's degree required (Construction, Engineering, Architecture, Business, or related)

Nice to Have

• Mechanical Engineer degree
• PMP, LEED, or similar certifications
• Experience with public-sector mechanical work
• Work on hospitals, industrial plants, or data centers

Join us to lead high-impact mechanical work with a team that moves fast and trusts strong PMs. If you like big problems, clear ownership, and real career runway, this is the role!
Note: Employees are held accountable for all duties of this job. This job description is not intended to be an exhaustive list of all duties, responsibilities, or qualifications associated with the position.
What else can we offer you?We offer a fantastic lineup of benefits, including Medical, Dental, Vision, FSA, HSA, 401k Matching, Paid Vacation, Paid Sick, Paid Holidays, Paid Parental Leave, Paid Short Term & Long Term Disability, Tuition Reimbursement, and a flexible hybrid work schedule (for office-based employees). Working at Mantis also brings tremendous professional development opportunities that allow you to make a real impact on both the company and your career!
Not sure you meet every single requirement?Studies show that women and individuals from underrepresented groups often hesitate to apply unless they check every box. At Mantis, we’re committed to building an inclusive and equitable team—so if this role excites you, we’d love to hear from you, even if your experience doesn’t match every single qualification.
Mantis Innovation is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.