Senior Project Manager, Mechanical Systems

Mantis Innovation•Burlington, MA

4d•$125,000 - $160,000•Hybrid

About The Position

Mantis Innovation provides managed facility services and turnkey program management with technology-enabled solutions across building systems and infrastructure. The Senior Project Manager, Mechanical Systems, owns mechanical, utility, and energy infrastructure project delivery from the initial site visit through closeout. The role converts facility needs into well-scoped, financially sound projects and leads engineering, contractors, and field execution to deliver safely, on schedule, and within budget. This is a senior, client-facing position serving as the primary point of accountability for a portfolio of commercial, industrial, and public-sector projects. The Senior Project Manager guides clients through investment decisions, manages project financials and risks, and mentors project engineers and coordinators. The role is accountable for client outcomes, project margin, and repeat business. The position combines office, remote, client-site, and field work. Frequent local travel to client sites throughout the greater Connecticut-Massachusetts area is expected, with occasional regional or overnight travel. Work is generally performed during standard business hours, with flexibility and occasional early morning, evening, or extended hours to meet site access, commissioning, client, emergency response, or project needs.

Requirements

Bachelor’s degree in mechanical engineering, construction management, or a related technical field, or an equivalent combination of education and experience.
At least 8 years of experience in the design, construction, or delivery of mechanical, utility, energy efficiency, or related infrastructure projects.
At least 5 years managing projects from development through closeout.
Strong working knowledge of mechanical systems, including HVAC, boilers, chillers, piping, controls, and central plant equipment.
Demonstrated experience managing project budgets, schedules, change orders, and contractors on commercial and/or industrial projects.
Experience developing cost estimates, savings calculations, and project economics such as lifecycle cost, simple payback, and ROI.
Ability to read and interpret construction drawings, specifications, and scopes of work.
Strong written and verbal communication skills, including presenting technical and financial recommendations to clients and leadership.
Valid driver’s license and ability to travel regularly to client sites.

Nice To Haves

Professional Engineer (PE) license, Project Management Professional (PMP), Certified Energy Manager (CEM), LEED AP, or similar credential.
OSHA 10-Hour Construction certification.
Experience with mechanical retrofits in occupied or operating facilities, such as healthcare, transit, higher education, industrial, or public-sector sites.
Experience with utility incentive programs, performance contracting, or design-build delivery.
Proficiency with project management, scheduling, and estimating software, such as Procore, Microsoft Project, or similar tools.

Responsibilities

Lead site surveys and collect technical, operational, utility, and cost data to establish project baselines and define client needs.
Analyze facility infrastructure, utility systems, and operating conditions to identify energy, water, reliability, and operational improvement opportunities.
Direct feasibility studies and technical evaluations for HVAC, central plant, utility modernization, and energy efficiency projects.
Develop project scopes, engineering assumptions, savings calculations, lifecycle cost analyses, and investment-grade cost estimates.
Prepare and present technical recommendations, project economics, and business cases to support client decisions and proposals.
Identify and integrate utility incentives, rebates, grants, and other funding sources into project economics.
Lead design engineering for approved projects, ensuring technical quality, code compliance, constructability, and alignment with project objectives.
Manage internal and external engineering resources to deliver design work on schedule and within scope.
Review drawings, specifications, scopes of work, RFIs, and submittals for alignment with design intent and project requirements.
Manage mechanical construction, retrofit, and infrastructure projects involving HVAC systems, boilers, chillers, piping, controls, and equipment replacements.
Develop and maintain project schedules, short-term work plans, site logistics, and contractor coordination to meet milestones.
Select, coordinate, and hold contractors and vendors accountable for scope, quality, safety, and schedule performance.
Enforce site safety requirements and resolve field safety, quality, access, and constructability issues, escalating unresolved concerns with recommended actions.
Coordinate startup, commissioning, turnover, and closeout with clients, contractors, and facility teams.
Own project budgets, cost forecasts, and margin, and report status and variances to leadership.
Track field changes, contractor impacts, and cost exposure; negotiate and manage change orders and support accurate billing and financial reporting.
Monitor project risks, schedule impacts, and open issues, and communicate status updates and recommended actions to stakeholders.
Serve as the primary client contact from project development through closeout and build long-term relationships.
Identify follow-on opportunities and support business development, proposals, and client presentations.
Mentor project engineers and coordinators and contribute to improvements in project delivery standards, tools, and processes.
Deliver at least 95% of site surveys, feasibility studies, and investment-grade cost estimates by committed deadlines, with less than 5% requiring material rework from engineering errors or omissions.
Develop technical scopes, project economics, and recommendations that generate at least $5 million annually in qualified project opportunities approved for proposal or implementation.
Achieve at least 95% of scheduled milestones on time and close projects within ±5% of approved budgets and at or above estimated gross margin.
Identify, document, and escalate field issues, safety concerns, contractor delays, and client-impacting risks within 24 hours, and submit priced change orders within five business days of a scope change.
Keep schedules, RFIs, submittals, action items, meeting notes, change logs, and closeout deliverables complete and current, entering updates within two business days of receipt or occurrence.
Maintain positive client feedback and repeat or follow-on work, and develop at least one project engineer or coordinator toward independent project responsibility.