Mechanical Engineer

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

We're seeking a Mechanical Engineer to join our growing California Buildings team. In this role, you'll support the design and delivery of HVAC, plumbing, hydronic, and mechanical building systems for a diverse portfolio of infrastructure and vertical construction projects. You'll collaborate with multidisciplinary teams, clients, and project managers to develop high-quality, sustainable solutions that meet technical, budget, and schedule objectives.

• Design and analyze HVAC and mechanical building systems for a variety of building projects.
• Perform heating and cooling load calculations and energy analyses.
• Prepare contract documents including plans, specifications, equipment schedules, and engineering reports.
• Develop mechanical system layouts using Revit and BIM technologies.
• Coordinate with electrical, structural, architectural, and civil disciplines throughout project development.
• Participate in design reviews, quality control processes, and constructability assessments.
• Support sustainability initiatives, including decarbonization, energy efficiency, and net-zero design strategies.
• Interface with clients, contractors, and project stakeholders to provide technical expertise and project support.
• Conduct site assessments, field investigations, and construction administration activities as needed.
• Ensure designs comply with California Building Code, Title 24, ASHRAE, NFPA, and applicable industry standards.

• Bachelor's degree in Mechanical Engineering from an accredited program.
• 5+ years of experience designing mechanical systems for buildings and facilities.
• Experience with HVAC system design, load calculations, equipment selection, and mechanical system layouts.
• Working knowledge of California building codes, ASHRAE standards, and energy codes.
• Proficiency with Revit, AutoCAD, and industry-standard engineering software.
• Strong communication, collaboration, and problem-solving skills.
• Ability to work effectively in a multidisciplinary project environment.

• Professional Engineer (PE) license in California or ability to obtain through reciprocity.
• Experience supporting healthcare, life sciences, higher education, aviation, federal, or commercial building projects.
• Familiarity with sustainable design practices, LEED, WELL, or net-zero energy initiatives.
• Experience with energy modeling software and building performance analysis.
• Knowledge of central utility plants, chilled water systems, and advanced HVAC technologies.

The base salary range for this position is $ to $. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. Job posted on November 05, 2026. This position will be open for at least 3 days.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support .

Job : #47973