Plumbing Engineer

Nenni and Associates • San Jose, CA

17h

About The Position

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

Requirements

• 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

Nice To Haves

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

Responsibilities

• 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

Benefits

• 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

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level