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:

• 4+ 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