HVAC/Plumbing Engineer

Hazen and Sawyer
Iselin, NJ

Job Description

Job Description

Hazen and Sawyer is seeking an HVAC Engineer for our Iselin, NJ office. As part of our HVAC/Plumbing team the selected candidate can expect to work closely with more experienced HVAC Engineers to perform HVAC and Plumbing designs for some of the nation's most challenging and rewarding projects.

Why Hazen and Sawyer:

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on "all things water."
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management.
  • We foster a work environment low on bureaucracy and high in creativity.
  • We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed.
  • We currently have over 2,000 employees in 70+ offices throughout the United States, Latin America, Canada, and the UK.
  • A flexible hybrid work schedule supports today's busy professionals.
Key Responsibilities:

This role focuses on municipal water and wastewater projects including planning, preliminary and final designs, and providing engineering services for projects in construction. The candidate should enjoy working within a team environment, and seek to develop HVAC and Plumbing design skills.

Required Qualifications:

  • Bachelors of Science degree in Mechanical Engineering (preferred).
  • Ability to communicate well both orally and in writing.
  • A minimum of (3) years of experience performing heating, ventilating, cooling, and plumbing design for municipal, commercial or industrial facilities.
  • A PE license is preferred, or the candidate must have plans of obtaining their PE.
  • Experience with Revit and other CAD skills is preferred.
  • Relevant areas of experience includes:
    • Application of various types of heating, ventilation, air conditioning, and hydronic piping systems
    • Heating and cooling load calculations
    • HVAC controls systems and building/facility management systems
    • ASME B31.1 Power Piping or ASME B3.9 Building Services Piping designs
    • International Mechanical Code, Plumbing Code and Fire Code
    • Performance of detailed HVAC and hydraulic pressure drop calculations
    • Performance of Plumbing pipe sizing and fixture count analysis
    • SMANCA Duct Construction Standards
    • NFPA 820 HVAC designs
    • Hot water boiler and chilled water system design
  • Must be Authorized to work in the US

Preferred Qualifications:

It is preferable to have experience in the HVAC systems related to water and wastewater facilities, although relevant experience in municipal, industrial or commercial buildings and facilities is acceptable.

What We Offer:

  • Comprehensive health benefits (medical, dental, vision, and prescription plans)
  • Pre-tax flexible spending plans for medical, dependent care, and transportation
  • Short and long-term disability, and employer paid life insurance
  • Paid holidays, floating holidays, and paid time off (PTO)
  • Employer-contributed 401(k) plan and additional financial planning support
  • Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships
  • Starting pay range for this position depends on skills, experience, education and geographical location
Posted 2026-03-20

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