Mechanical Engineer - HVAC & Plumbing

Job Title:

Mechanical Engineer - HVAC & Plumbing (Mid-to-Senior Individual Contributor)

Job Description

We are seeking a Mechanical Engineer - HVAC & Plumbing (Mid‑to‑Senior Individual Contributor) to support the design and development of systems for technically complex, mission-critical federal facilities. This is a hands-on role focused on owning HVAC and plumbing system design, calculations, and Revit-based construction documentation within a collaborative, fast-paced team environment. Ideal candidates are detail-oriented engineers who thrive in production-focused work and are eager to contribute to high-impact projects across VA, DoD, and federal infrastructure.

Responsibilities

+ Independently design HVAC and plumbing systems with direct ownership of system layouts, calculations, and construction documentation.

+ Perform mechanical calculations, including load calculations, equipment sizing, pump calculations, and general HVAC and plumbing system calculations.

+ Validate calculation inputs and outputs, applying sound engineering judgment when results appear inconsistent or incorrect.

+ Produce high-quality construction documents in Revit, including models and drawings that clearly reflect personally designed systems.

+ Support multiple projects concurrently in a lean team environment, managing priorities and deadlines effectively.

+ Coordinate closely with architecture, electrical, and other engineering disciplines to ensure fully integrated designs.

+ Participate in short site visits for field verification, existing system assessment, and confirmation of design conditions.

+ Actively contribute to the production of construction documents, details, and specifications, rather than focusing solely on coordination or oversight.

+ Clearly articulate systems personally designed, calculations personally performed, and drawings personally produced when collaborating with internal and external stakeholders.

+ Collaborate with project teams to support mission-critical federal and defense facilities where HVAC and ventilation requirements differ significantly from commercial buildings.

+ Maintain accountability for meeting project deadlines while working within a laid-back but performance-driven culture.

+ Provide occasional client-facing support during site visits or meetings, particularly for engineers with strong presentation and communication skills.

Essential Skills

+ Bachelor's degree in Mechanical Engineering (BSME) or a related field preferred.

+ 5-10+ years of recent, hands-on HVAC and plumbing design experience, with more Senior candidates considered only if they are clearly still performing active design, calculations, and Revit production.

+ Demonstrated experience personally designing both HVAC and plumbing systems (not HVAC-only with limited plumbing exposure).

+ Proven ability to perform mechanical load modeling and mechanical calculations, including loads, equipment sizing, and pump calculations.

+ Strong proficiency with Revit MEP, including active production of construction documents, drafting, and modeling in the current or most recent role.

+ Direct ownership of drawing production in Revit, not limited to coordination, redlining, or CAD-only work.

+ Hands-on HVAC and plumbing design execution clearly evidenced through a portfolio or resume that shows personally produced construction documents and detailing work.

+ Experience working across multiple concurrent projects rather than a single long-term program.

+ EIT registration required as a baseline credential.

+ Ability to quickly contribute without the need for Revit training or extensive onboarding in construction documentation workflows.

+ Capability to support technically complex, high-impact federal and mission-critical facilities where HVAC and ventilation requirements differ from commercial projects.

+ Strong engineering judgment and problem-solving skills, especially in validating and troubleshooting calculation results.

+ Effective communication skills, with the ability to clearly explain design decisions, calculations, and documentation to project teams and stakeholders.

Additional

Skills & Qualifications

+ Professional Engineer (PE) license…