Mechanical Engineer MEP/HVAC, Rail & Transit, Vehicle Systems

Mechanical Engineer – MEP/HVAC, Rail & Transit, Vehicle Systems | Woodbridge, NJ

Location: Woodbridge, NJ | Full-Time | On-Site Salary Range: $85,000 - $105,000 + Benefits

About Garg Consulting Services, Inc.

Garg Consulting Services, Inc. (Garg) is a multidisciplinary engineering firm delivering transportation and infrastructure solutions across the Northeast. We're hiring a Mechanical Engineer with 2–5 years of experience to join our Woodbridge, NJ team and support Facility/MEP (HVAC, plumbing, fire protection), railroad/rail transit systems, and rail vehicle engineering projects.

Position Overview

The Mechanical Engineer will deliver mechanical design and coordination support for MEP/building systems, rail and transit infrastructure, and vehicle systems work-producing drawings, calculations, specifications, and engineering deliverables for projects throughout the region.

Key Responsibilities

• Support mechanical design across Facility/MEP, Railroad/Rail Transit, and Vehicle Engineering groups


• Design HVAC systems, including tunnel and station ventilation concepts where applicable


• Develop plumbing and drainage layouts for facilities and infrastructure projects


• Support fire protection and life-safety related mechanical system design coordination


• Contribute to mechanical systems in rail stations and vehicle maintenance facilities


• Support onboard rail vehicle mechanical systems (as assigned)


• Develop plans, specifications & estimates (PS&E) and support design packages through submission


• Perform load calculations, equipment selection/sizing, and layout development


• Create and revise design drawings/models using AutoCAD, Revit MEP, and/or SolidWorks


• Support field surveys, site visits, and existing-conditions assessments


• Coordinate with civil, structural, electrical, and client teams to resolve interfaces and deliver complete designs


• Apply applicable codes/standards (ASHRAE, NFPA, ASME, ADA) and agency requirements

Required Qualifications

• Bachelor's degree in Mechanical Engineering (ABET-accredited)


• Engineer-In-Training (EIT) certification


• 2–5 years of mechanical design experience (MEP/HVAC, facilities, rail/transit, railroad systems, vehicle systems, or similar)


• Working knowledge of HVAC, plumbing, and mechanical systems design fundamentals


• Experience supporting (or strong interest in) rail/transit, railroad systems, MEP, and/or vehicle programs


• Proficiency with Microsoft Office and CAD/design tools (AutoCAD, Revit MEP, and/or SolidWorks)


• Strong written and verbal communication skills


• Ability to work effectively in a multidisciplinary team


• Willingness to travel for occasional site visits


• Valid U.S. driver's license and work authorization

Preferred Qualifications

• Rail or transit project exposure (NJ Transit, Amtrak, MTA, etc.)


• Familiarity with tunnel ventilation, fire suppression, train wash systems, pressurization, and/or onboard vehicle systems


• Knowledge of public agency standards and transportation codes

Compensation & Benefits

• Medical, Dental & Vision Insurance


• 401(k) Retirement Plan with Company Match


• Paid Time Off & Paid Holidays


• Performance-Based Bonuses


• Wellness perk: gym membership reimbursement

Equal Opportunity Employer

Garg is an Equal Opportunity Employer. Employment decisions are based on merit, qualifications, performance, and capabilities, and are made in compliance with applicable federal, state and local laws.

Final candidates are required to undergo a background check and a pre-employment drug screening. These screenings may include employment and education verification, reference checks, and a criminal history check as allowed by law.

All screenings are conducted in accordance with federal, state, and local requirements, including the Fair Credit Reporting Act (FCRA). Employment offers are contingent upon the successful completion of all required checks.