Sr Mechanical Engineer

## Company Description **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. ## Job Description Are you ready to lead the mechanical design of high-performance buildings that shape communities and critical infrastructure? AECOM’s Bay Area Buildings + Places team is seeking a **Senior Mechanical Engineer** to provide technical leadership, mentor emerging talent, and deliver complex HVAC and building systems solutions across a diverse portfolio of projects. This is a Hybrid opportunity working out of AECOM’s Oakland and **** or San Francisco office***s***. This is a senior technical leadership role for an experienced engineer who thrives in both independent execution and collaborative, multi-disciplinary environments—someone who values design excellence, accountability, and developing the next generation of engineers. **What You’ll Do** As a **Senior Mechanical Engineer**, you will lead mechanical system design and delivery from concept through construction administration while serving as a trusted technical resource for clients and internal teams. **Technical Leadership & Design Excellence** - Lead the mechanical system design as a trusted technical resource for clients and internal teams while also collaborating and contributing to technical excellence within AECOM's global practice. - Serve as the mechanical discipline lead on projects of varying size and complexity, ensuring technical quality, code compliance, and constructability. - Apply sound engineering judgment to evaluate, select, and adapt mechanical systems, equipment, and materials. - Stay current with applicable codes, standards, and emerging technologies, including ASHRAE, IMC, IPC, and IECC. - Analyze system performance and energy use to optimize efficiency, resilience, and lifecycle value. **Project Delivery & Coordination** - Execute mechanical design from concept through construction administration, including calculations, specifications, reports, and drawing development. - Coordinate closely with architectural, structural, electrical, plumbing, fire protection, and specialty disciplines to ensure integrated solutions. - Perform and lead site investigations to assess existing systems and inform design decisions. - Review shop drawings, RFIs, and submittals; attend client and construction meetings as part of construction administration. - Ensure projects are delivered within scope, schedule, and budget expectations. **Team Leadership & Mentorship** - Mentor and guide junior engineers and designers, fostering technical growth, confidence, and professional development. - ***Have the desire and ability to develop and grow our mechanical engineering team.*** - Review team members’ work for technical accuracy, consistency, and quality, providing constructive, growth-oriented feedback. - Identify skill gaps and support the development of targeted training and knowledge-sharing initiatives. - Contribute to a collaborative, inclusive team culture that values accountability, learning, and excellence. - Establish yourself as a trusted technical leader and mentor within the ***Northern California***…