Demo

Plumbing Engineer

Nenni and Associates
San Jose, CA Full Time
POSTED ON 4/18/2026
AVAILABLE BEFORE 6/17/2026

Overview:
Our client is a well-established, full-service design-build mechanical contractor with a reputation for delivering innovative solutions across some of the Bay Area’s most exciting and complex projects. They are seeking a Plumbing Engineer to join their growing San Jose team. This is an opportunity to play a key role in shaping projects across biotech, semiconductor, higher education, and other dynamic markets — while advancing your career in a collaborative, growth-focused environment.

What You’ll Do:
As a Plumbing Engineer, you’ll bring technical expertise and creative problem-solving to projects that make a real impact. You will:

  • Collaborate directly with customers to develop designs, calculate system requirements, and select equipment tailored to project needs

  • Take ownership as lead Engineer on assigned projects, driving designs from concept through construction

  • Design plumbing systems including domestic water, sanitary sewer, storm drainage, compressed air, and natural gas

  • Perform hydraulic calculations (pressure loss, flow sizing, pump selection) to ensure system efficiency

  • Ensure all designs meet applicable codes and standards (UPC, CPC, NFPA, ADA, and local requirements)

  • Coordinate plumbing designs with mechanical, electrical, structural, and architectural teams to deliver seamless, constructible solutions

  • Prepare specifications, equipment schedules, and technical documentation

  • Conduct site surveys and develop accurate as-built documentation

  • Support sustainability initiatives with water conservation and energy-efficient design strategies

  • Mentor junior engineers and provide technical support for fabrication and field operations

  • Participate in jobsite meetings and client presentations, building trusted relationships

What We’re Looking For:

  • 5 years of plumbing design experience (commercial or industrial projects)

  • Bachelor of Science in Mechanical Engineering, Plumbing Engineering, or related discipline

  • Strong knowledge of plumbing codes, standards, and best practices (UPC, CPC, NFPA, ASPE guidelines, ADA)

  • Experience preparing plumbing drawings, specifications, and hydraulic calculations

  • Familiarity with system types including domestic water, sanitary, storm, lab/medical gases, and specialty piping

  • Proven ability to manage projects, lead teams, and deliver quality work on time

  • Proficiency with AutoCAD and REVIT; BIM coordination experience preferred

  • Excellent communication, problem-solving, and client-facing skills

  • EIT or PE license (CA) preferred, or the ability to obtain

Why Join:

  • Competitive compensation package with growth potential

  • Comprehensive healthcare and retirement benefits

  • Paid vacation, sick time, and holidays

  • Relocation assistance available for the right candidate

  • Be part of a team that values innovation, collaboration, and technical excellence

  • Opportunity to work on high-profile, diverse projects that challenge and develop your skills

Salary.com Estimation for Plumbing Engineer in San Jose, CA
$76,048 to $98,329
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