Senior Mechanical Project Engineer

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Core States Group designs, builds, and manages programs and projects across North America and has been recognized on top lists throughout the architecture, engineering, and construction (A/E/C) industry. Established in 1999, the company offers integrated solutions with seamless continuity, and many of the world’s most notable brands count on Core States Group to deliver speed to market, cost certainty, and compelling design.

With 23 offices across the United States and Canada, Core States Group is an industry powerhouse that drives innovation and improves everyday life for countless people across several markets, including Convenience, Distributed Generation, Financial, Grocery, Housing, Industrial, Restaurants, Retail, Semiconductor, Tribal, Zero-Emission Vehicle (ZEV) Infrastructure, and more.

As the Senior Mechanical Project Engineer
, supporting our Architecture and Engineering business unit, you will supervise a design team and manage mechanical engineering projects from conception to completion. You will apply your experience in: HVAC, plumbing/piping, refrigeration, fire protection and fuel systems. As part of a multi‑disciplined firm, you will be coordinating with Site/Civil Engineers, Electrical Engineers, Structural Engineers, Architects and Construction Project Managers. You will be responsible for the production of mechanical engineering construction documents while adhering to client requirements, code requirements and site adjustments.

You demonstrate strong communication and enjoy fostering strong relationships. You proactively seek opportunities to improve processes which offer better ideas, thus supporting innovation. You align with business objectives. You want to be part of a strong culture that is built upon respect and teamwork. You are professional, accountable and commit to learning. You align with our Core Values of:
Integrity, Service, Excellence, Innovation, Inclusion.

• Conduct site visit investigations as well as generate reports/recommendations based on findings.
• Produce design plans, calculations and reports with limited direction.
• Coordinate with subconsultants, provide client interaction support, establish and maintain phase and task level budgets as well as schedule project phases and tasks.
• Schedule production staff and lead them through tasks, coordinate and assist with addendums, RFIs, and change orders.
• Assist in coordinating the work of a multi‑disciplined team throughout the design development and contract document phases of a project.

• 8+ years of experience with general building mechanical design production, preferably with commercial projects such as retail or restaurants.
• Bachelor’s Degree in Mechanical Engineering required.
• P.E. License required.
• AutoCAD and MS Office Required;
  Revit is a plus.

You will work with a team of Design Engineers, Professional Engineers and Project Managers.

This role is based out of our Ontario, CA, Long Beach, CA, or Roseville, CA offices. While we encourage a hybrid work schedule, we are open to remote candidates within the state of California.

• COMPENSATION – Competitive wages and bonus programs.
• RETIREMENT – We offer a great 401(k) match to help you invest in your future and grow your retirement savings with confidence.
• HEALTHCARE – Excellent health benefits, life insurance options, and supplemental benefit options, giving you the flexibility to choose the coverage that best fits your needs and lifestyle.
• VACATION – Generous PTO time to help you recharge, relax, and maintain a healthy work‑life balance.
• PERKS – Team wellness challenges, Costco membership reimbursement, half‑day Fridays during summer months + much more!
• WORK‑LIFE BALANCE – A flexible work environment that supports a healthy work‑life balance, whether you’re in the office, working remotely, or somewhere in between.
• PAID PARENTAL LEAVE – Four weeks of fully paid parental leave to give you time to bond with your new addition and support your growing family.
• TUITION REIMBURSEMENT – Advance your education with support! We offer tuition reimbursement to support your learning journey.

Note: Please do not be concerned if you do not meet every requirement. At Core States we are dedicated to building a diverse and inclusive workplace, so if you are excited about this role but your experience does not align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

This position will remain open until it is filled.

Mid‑Senior level

Full‑time

Engineering and Information Technology

Architecture and Planning

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