Senior Mechanical Engineer – Transit MEP (Employee-Owned)

EXP; Charleston (WV); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Vacation time

401(k) retirement benefits

Job summary

EXP is seeking a Senior Mechanical Engineer to lead HVAC, plumbing, and mechanical systems design for Transit, Transportation, Commercial, Institutional, and Public Infrastructure across the Mid-Atlantic region. You will collaborate with multidisciplinary teams and clients to deliver technically sound, code-compliant solutions.

Responsibilities include leading design through construction, performing calculations and system analyses, and mentoring junior staff while ensuring quality, schedule,

Qualifications

• Bachelor's degree in Mechanical Engineering from an accredited institution.
• Professional Engineer (PE) license required; registration in Washington, DC, Maryland, and Virginia preferred.
• Minimum 10 years of progressive experience in mechanical engineering design and project delivery.
• Strong expertise in HVAC systems design, load calculations, equipment selection, and mechanical system analysis.
• Experience preparing engineering calculations, specifications, technical reports, and construction documents.
• Knowledge of plumbing and fire protection system design and coordination.
• Experience with public infrastructure projects (transit, transportation, rail, aviation, etc.).
• Familiarity with transit station, underground facility, and tunnel ventilation design is highly desirable.
• Working knowledge of building codes, NFPA standards (including NFPA 130).
• Proficiency with Revit MEP, AutoCAD, and HVAC design software.
• Strong project management, communication, leadership, and client-facing skills.
• Demonstrated ability to mentor technical staff and lead multidisciplinary design teams.
• Experience with sustainable and energy-efficient building system design is preferred.

Responsibilities

• Lead the design and delivery of HVAC, plumbing, and mechanical systems from planning through construction.
• Prepare and review engineering calculations, load analyses, one-line diagrams, studies, reports, and technical specifications.
• Perform equipment sizing, selection, and scheduling for airside and hydronic systems, including chillers, boilers, cooling towers, air handling units, pumps, air terminals, and water source heat pumps.
• Develop equipment room layouts and system concepts during planning, schematic design, and design development phases.
• Design and coordinate mechanical systems for transit stations, maintenance facilities, tunnels, commercial buildings, and other public infrastructure projects.
• Coordinate closely with architectural, structural, electrical, civil, fire protection, and other engineering disciplines.
• Review codes, standards, and client requirements to ensure project compliance, including applicable mechanical codes and NFPA standards.
• Conduct QA/QC reviews of calculations, drawings, specifications, and deliverables.
• Support project managers with scope development, budgeting, work planning, scheduling, and client communications.
• Review submittals, respond to RFIs, perform field investigations, and support construction administration activities.
• Develop sequences of operation and provide system analysis for HVAC and building performance.
• Manage multiple projects simultaneously while maintaining quality, schedule, and budget objectives.
• Mentor and develop junior engineers and designers, providing technical guidance and leadership.
• Apply risk management and quality management procedures throughout project execution.

Skills

HVAC design

Load calculations

Project management

Communication

Leadership

Client-facing

Mentoring

Sustainable design

NFPA standards

Revit

Education

Bachelor's degree in Mechanical Engineering

Professional Engineer (PE) license

Tools

Revit MEP

AutoCAD

HVAC design software

Job description

EXP is seeking a Senior Mechanical Engineer to lead HVAC, plumbing, and mechanical systems design for Transit, Transportation, Commercial, Institutional, and Public Infrastructure across the Mid-Atlantic region. You will collaborate with multidisciplinary teams and clients to deliver technically sound, code-compliant solutions.

Responsibilities include leading design through construction, performing calculations and system analyses, and mentoring junior staff while ensuring quality, schedule,