Mechanical Engineer​/Designer

WFH Flexible
• San Francisco Bay Area, CA

Description

Mazzetti is a global engineering design and consulting firm with a rich history of delivering forward-thinking solutions primarily for Healthcare and Life Sciences facilities and infrastructure. As an employee-owned benefit corporation, we are committed to bending the climate curve™. Though our story began with a small team of MEP engineers, 60 years later, we’ve grown to 200+ people in 11 locations across the U.S., India, and Africa.

We are proud to partner with clients, addressing a spectrum of needs, mindful of their environmental footprint, resiliency, and economic and functional interests.

Creating healthier, enduring environments

Bending the climate curve™

• Earn Trust:
  Trust is the foundation of our success. Through transparent communication, ethical practices, and consistent results, we build enduring relationships with clients, partners, and communities.
• Team First:
  We prioritize collaboration, inclusivity, and mutual support, recognizing that collective strength drives success. Every team member’s unique contributions are valued and celebrated.
• Inspire:
  We ignite creativity, innovation, and passion to exceed expectations, fostering a culture of learning and bold exploration that drives positive change and lasting impact.

In 2025, we proudly achieved the JUST Label —an affirmation of our values-driven culture and dedication to environmental and social impact.

Mazzetti is seeking a mid-level Mechanical Engineer/Designer based on the San Francisco Bay area to join our healthcare practice to contribute fully to the analysis, design and documentation of mechanical/HVAC systems for large and complex healthcare projects. Engineers in this role take ownership of system design from concept through construction, working collaboratively with senior engineers, architects, and multidisciplinary teams.

• Drafting and designing mechanical plans, including equipment layouts, single-line diagrams, and schedules.
• Creating mechanical drawing packages that may include:
  • Schematics
  • Details
  • Control diagrams
  • Airflow tables
• Using computer-assisted engineering and design tools (including Revit) to support system design and documentation.
• Supporting mechanical system calculations and analysis under the direction of senior engineering staff.

• Preparing high-quality mechanical system drawings and documentation for construction.
• Assisting in the development of technical narratives, schedules, and documentation for project deliverables.
• Working closely with internal MEP team members to ensure cohesive, coordinated design solutions.
• Incorporating feedback from architects, structural engineers, and sustainability specialists.
• Demonstrating a team-first approach and openness to multidisciplinary collaboration.

• Conducting occasional site visits to observe mechanical installations and verify conformance with design intent.
• Supporting responses to submittals and RFIs with guidance from senior team members.

This is a hybrid position based in the San Francisco Bay Area, California.

Occasional local travel to project sites.

• Bachelor’s degree in Mechanical Engineering or related field
• 4–6 years of experience in mechanical/HVAC design for buildings
• Experience working on healthcare, laboratory, or other complex building types
• Proficiency with Revit with production-level experience
• Solid understanding of HVAC system engineering design fundamentals
• Familiarity with codes, standards, and industry best practices
• Ability to work independently while collaboratively in a multi-disciplinary team

• Proficiency with Revit, AutoCAD, and other design software used for mechanical system drafting and modeling.
• Ability to create drawing packages and documentation according to project standards.
• Familiarity with mechanical codes, standards, and best practices (experience with healthcare preferred but not…