Sr. Engineer; HVAC

Position: Sr. Engineer (HVAC
Job Description

Job Description

About AHA Consulting Engineers
Founded in 1991, AHA Consulting Engineers, Inc. has a 30+ year proven track record in the design of complex, high-performance buildings. We are consultants and advisors first, focused on our clients' vision and success during and beyond every project.

AHA's Team of dedicated professionals in our Burlington and Boston, MA;
Atlanta (Alpharetta), GA;
Philadelphia, PA; and Ashburn, VA offices expertly advise, evaluate, model, design and commission high-performance building systems delivering trusted performance to our clients under the most challenging budget and schedule constraints.

As a multi-discipline building system consulting firm, our offerings include best-in-class HVAC, Plumbing, Electrical and Fire Protection (MEP/FP) and Technology Design;
Energy & Sustainability Consulting;
Commissioning, BIM/VDC and Advisory Services;
Arc Flash and Coordination Studies; and Computational Fluid Dynamics Modeling.

We are a recognized expert in the AEC (Architectural, Engineering and Construction) industry with a targeted focus on Science & Technology, Mission Critical, Industrial, Academic, and corporate markets.

Lastly and most importantly, AHA is as committed to our Team Members as we are to our clients. Our benefits package, training program, and office culture supports our employees' professional growth and well-being. AHA also promotes the continued personal and professional development of our dedicated professionals to stay current on the latest developments in the AEC industry through participation in professional organizations, industry seminars and trade shows, as well as continuing education classes and lunch-and-learns.

Our AHA University program provides the opportunity for our professionals to be part of an AHA Team presenting information sessions of our building performance consulting expertise to our architectural, development, and end-user clients. Furthermore, AHA has competitive salaries, PTO, health, and retirement benefits and, AHA is a partial ESOP company which further enhances our retirement benefits. And finally, our unique Path to Partnership opportunity provides employees the guidance and mentorship to advance up the corporate ladder to leadership positions in the firm.

Why This Role Matters
We are seeking a Senior Mechanical Engineer with a Professional Engineer (PE) license and strong project management experience to join our MEP engineering team. This role combines advanced technical design, project leadership, client management, and coordination across multi-disciplinary project teams. The ideal candidate is a hands‑on engineer who can oversee full project life cycles—concept through construction—while maintaining high quality standards and client satisfaction.

Key Responsibilities
Mechanical Engineering & Design
Lead mechanical/HVAC design for buildings across various sectors (commercial, institutional, mission critical, life sciences, residential, etc.).
Perform and review complex engineering calculations, system sizing, code analysis, and equipment selection.
Develop mechanical plans, specifications, and technical reports.
Ensure designs comply with relevant codes and standards (ASHRAE, NFPA, IMC, IECC, etc.).
Review shop drawings, submittals, RFIs, and assist during construction administration.

Project Management
Serve as the primary point of contact for clients, architects, and contractors.
Manage project scope, schedule, budget, and staffing from kickoff through closeout.
Lead multidisciplinary coordination with electrical, plumbing, fire protection, and technology teams.
Oversee junior engineers, mentor staff, and provide technical guidance.
Manage proposal development, project planning, and forecasting of…