Graduate Mechanical Engineer Jobs in California (NOW HIRING)

At Mott MacDonald, we trust our brilliant people to do brilliant things in engineering, management, and development services, supporting multisector project work in over 150 countries. As one of the largest employee-owned companies in the world, we pride ourselves on our ability to deliver exceptional outcomes through our network of 20,000+ talented consultants. With sustainability and innovation at the heart of all our sectors in North America, including, Buildings, Energy, Transportation, and Water.

We believe in empowering our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work. Join us and be part of a collaborative environment where your ambitions are united with ours, and you can truly shape your story.

If you share that vision, even if you don’t meet every requirement listed, we’d still love to hear from you. We value potential and diverse perspectives as much as experience. Let’s explore how we can support your growth and help you take the next step in your career, while contributing to an exciting new chapter for Mott MacDonald in North America.

At Mott MacDonald, we believe that engineering is about more than solving problems, it’s about shaping a future that’s inclusive, resilient, and sustainable. As we expand our operations across the US and Canada, we’re inviting passionate individuals to join us in a journey that’s driven by purpose and powered by brilliant people. We’re trusted consultants, partnering with clients to solve complex challenges and deliver lasting impact.

From the moment you join our team, you’ll be surrounded by experienced engineering consultants, project managers, and subject matter experts who are committed to excellence and innovation. You’ll work side-by-side with mentors and peers who champion integrity and teamwork, because we know collaboration drives better outcomes - and you won’t just apply your engineering skills, you’ll also embrace the mindset of a consultant.

Together, we’ll tackle complex challenges, deliver sustainable solutions, and create positive change for our clients and the communities they serve. You’ll be trusted to contribute, encouraged to grow, and supported every step of the way.

As a participant in our brand-new graduate program, Blueprint, launching in October 2026, you’ll embark on a structured three-year development journey designed in partnership with an award-winning learning provider. The program blends immersive learning experiences with mandatory development sessions to build the professional, commercial, and personal effectiveness skills graduates need to thrive and grow into future leaders within our business

Your responsibilities may include:

• Designing engineering solutions
• Conducting and monitoring site inspections
• Joining project and client meetings
• Refining technical designs and documentation
• Analyzing reports and specifications
• Exploring project and client management
• Leveraging digital tools and innovation
• Driving sustainable outcomes
• Building connections through our Early Career Professionals Network

To be considered for this 2026 opportunity, here’s what you’ll need:

• Bachelor’s or Master’s Degree in Mechanical or Fire Protection Engineering (preferred)
• Successful completion of EIT exam, or ability to take EIT exam within 12 months
• Demonstrated interest in your chosen field through previous internships, volunteering opportunities, or organization memberships (SFPE, NFPA)
• Creative thinking skills, with a methodical and pragmatic approach to problem solving
• Proficient communication and presentation skills to engage confidently with clients and colleagues
• Resilient, solution-oriented mindset, with a focus on continuous growth and delivering value
• Ability to build and maintain relationships and rapport with internal and external stakeholders
• Collaborative spirit and commitment to teamwork

This position is located in either Los Angeles, CA or San Diego, CA. You must be able to reliably commute to our office in one of these locations, per our hybrid working policy.

We’re more than engineers - we’re changemakers. At Mott MacDonald, you’ll find:

• Best in class learning and development initiatives
• Dedicated mentorship program
• Network of Employee Resource Groups
• Opportunities for excellence everyday

We welcome individuals who are driven by curiosity, compassion, and a desire to make a difference. If you’re excited by the idea of working in an engineering consultant that values your growth and empowers you to lead with integrity, we’d love to hear from you.

Applicants must be authorized to work for any employer in the US, as Mott MacDonald is unable to provide sponsorship at this time. (US Only)

At Mott MacDonald, our employees have a stake and a voice in our business, providing them with a direct connection to our success through our personal and group performance bonuses. We provide a comprehensive benefit package that includes 401k, medical, dental and vision insurance, short-term/long-term disability, paid holidays, PTO, parental leave, and company paid life insurance.

Individual pay is determined based on several factors such as work location, education, experience, and unique skills.

The expected salary for this position is $77K - $88K.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, creed, marital status, sexual orientation, gender identity, citizenship status or disability status.