Principal Mechanical Engineer (HVAC / Plumbing / Mechanical Systems)

Location: San Jose, CA

Compensation: $180,000 – $250,000 base salary + bonus (depending on experience)

Employment Type: Full-Time

Work Environment: On-site

About the Opportunity

A large, publicly traded organization operating in mission-critical construction and engineering environments is seeking a Principal Mechanical Engineer to join its San Jose-based engineering team.

This is a senior technical and leadership role responsible for leading mechanical design efforts from project kickoff through construction, while mentoring engineers and ensuring the highest standards of design quality. The position works closely with clients, architects, and internal teams on complex, high-visibility projects.

Position Overview

The Principal Mechanical Engineer serves as a technical authority and project leader, guiding HVAC, plumbing, and mechanical systems design across new construction and retrofit projects. This role balances hands-on engineering with leadership, client engagement, and quality control, ensuring projects are delivered efficiently, sustainably, and in alignment with client goals.

Key Responsibilities

• Lead mechanical system design for new construction and retrofit projects
• Provide technical leadership, mentorship, and oversight to engineering teams
• Manage projects from concept through construction, ensuring quality, budget, and schedule alignment
• Design and review HVAC, plumbing, and central plant systems
• Ensure compliance with applicable codes, standards, and best practices
• Drive energy-efficient and sustainable design solutions
• Serve as a primary client-facing technical lead, coordinating with owners, architects, and contractors
• Review and approve design documents to ensure technical accuracy and consistency
• Support construction administration and resolve field-related design issues

Required Experience & Qualifications

• 10+ years of mechanical engineering experience (consulting environment preferred)
• Engineer-in-Training (EIT) and Professional Engineer (PE) required; California PE strongly preferred
• Proven experience leading HVAC, plumbing, and mechanical systems design across all project phases
• Strong background in central plants, MEP systems, and energy-efficient design
• Advanced proficiency with Revit and AutoCAD
• Strong knowledge of applicable mechanical codes, standards, and sustainable design principles
• Excellent communication, leadership, and client management skills

Project Environment

• Diverse portfolio including biopharma, healthcare, data centers, industrial, education, and commercial projects
• Collaborative engineering, construction, and mechanical contracting environment
• Strong emphasis on design quality, innovation, and long-term client relationships

Compensation & Benefits

• Base salary range: $180,000 – $250,000, plus bonus potential
• Company-paid medical, dental, vision, and prescription drug coverage
• Company-paid accident and sickness benefits
• Basic life insurance
• Employee Assistance Program (EAP)
• Paid vacation, company holidays, and paid sick leave
• 401(k) retirement savings plan

Apply Now

If you are a senior mechanical engineering leader seeking a high-impact role with technical authority, client visibility, and long-term stability, this opportunity offers the chance to shape complex projects and mentor teams within a strong, enterprise-level organization.