Senior Mechanical Engineer - job 3 of 9

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

AECOM is seeking a Senior Mechanical Engineer to be based in Sacramento, San Francisco or Oakland, CA.  

About AECOM:  

AECOM is a globally recognized architecture and engineering design firm. This global presence allows our diverse and creative designers to have a positive impact on millions of lives located around the globe. Our practice is centered around people and the way that they interact and experience our designs and the built environment.  By leveraging the design thought process our multi-disciplinary teams develop solutions that solve client and global challenges. Our projects have a direct positive impact on the spaces and policies that define the world we live in, ultimately creating a thoughtful, resilient, and beautiful future.  

About Buildings + Places:  

Our Buildings + Places practice includes architecture, interiors, building and system engineering, urbanism, and planning (inclusive of landscape design), strategy +, economics, technology solutions, asset advisory, and cost and program management. This diverse team assists our clients from strategy through project realization, creating positive outcomes for those who occupy and use the buildings and environments we help to create. Our practice work includes a wide range of small to large projects in varied market sectors such Science & Technology, Advanced Manufacturing, Commercial, Aerospace, Higher Education, Industrial and Process, Transportation, Aviation Sports and Federal market sectors.  We look to combine beauty, sustainability, resiliency, equity, and innovation in our projects and believe these values can be instilled in any project regardless of size or budget.  

As a Senior HVAC Mechanical Engineer, you will lead the design and optimization of complex HVAC systems, leveraging your expertise to deliver exceptional results. You will serve as a technical leader within our organization, guiding project teams and driving innovation to exceed client expectations. 

Advanced Design and Analysis: 

• Lead the design and analysis of sophisticated HVAC systems incorporating energy efficiency strategies, load calculations, psychometrics, and system optimization techniques.  
• Conduct detailed load calculations, equipment selection, and system layout design. 

Project Management / Client Engagement: 

• Manage multiple HVAC projects simultaneously, including scheduling, budget oversight, and coordination with Architects, other engineering disciplines and contractors.  
• Cultivate strong client relationships through proactive communication and strategic consulting. 

Technical Expertise: 

• Provide technical guidance on complex HVAC system selection, sizing, and application, including advanced control systems, chilled water systems, and air handling units.  
• Conduct in-depth analysis and evaluation of HVAC system performance to optimize energy efficiency and reliability. 

Project Leadership and Collaboration: 

• Lead multidisciplinary project teams, providing technical direction and mentorship to junior engineers. 
• Collaborate closely with architects, contractors, and stakeholders to integrate HVAC systems seamlessly into overall project design. 
• Lead multidisciplinary project teams, providing technical direction while mentoring junior engineers, providing technical support, and overseeing project execution. 

System Integration: 

• Ensure seamless integration of HVAC systems with other building systems like electrical, plumbing, and fire safety systems.  
• Collaborate closely with architects, contractors, and stakeholders to integrate HVAC systems seamlessly into overall project design 

Regulatory Compliance: 

• Ensure all HVAC designs comply with relevant building codes, safety standards, and energy efficiency regulations. (CA Title 24, ASHRAE, HCAI, CDPH and LEED) 

Troubleshooting and Maintenance: 

• Diagnose and resolve complex HVAC system malfunctions, identify potential issues, and develop preventative maintenance plans.  
• Experience in the Follow Market Sectors: 
  • Healthcare 
  • Federal 
  • Data Centers /Mission Critical 

Minimum Requirements: 

• BA/BS in Mechanical Engineering or similar field +8 years of related experience or demonstrated equivalency of experience and/or education   
• California PE 

Preferred Qualifications: 

• A minimum of ten (10) years of related experience or demonstrated equivalency of experience and/or education  
• Experience with healthcare-related projects in California. 
• Strong mechanical code knowledge including International Fuel Gas Code, ASHRAE standards, NFPA and other relevant codes and standards  
• Experience in designing complex hydronic systems, steam, VRF systems and sustainable designs. This includes cooling towers, water cooled chillers, air cooled chillers, hot water and steam boilers, geothermal systems, etc.  
• Revit and CAD experience  
• Ability to use load calculation software such as Trace700 and other energy modeling softwares such as eQuest, IES is a plus.  
• Plumbing and Fire Protection system design experience  
• Medical gas piping design experience is preferred  
• Experience with sustainable design and certification or high performance buildings  
• Excellent communication skills: articulate, assertive, and confident  
• Creative thinker with effective teamwork skills  

• Sponsorship is not available for this opportunity

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.