Senior Mechanical Engineer - Buildings

WSP USA; Irvine (CA); On-site; USD 108,000 - 157,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Disability insurance

Life insurance

Retirement savings

Paid sick leave

Paid vacation

Paid parental leave

Bereavement/voting PTO

Job summary

WSP USA in Irvine, CA is seeking a Senior Mechanical Engineer to join our Property & Buildings team. You will lead mechanical design and technical delivery across commercial, higher education, and multi-family residential projects, collaborating with a multidisciplinary group to develop integrated building systems.

The ideal candidate has 5+ years of relevant experience, strong knowledge of HVAC, Revit and AutoCAD, and excellent communication skills. PE on track or licensed is preferred.

Qualifications

• Bachelor’s degree in Mechanical or Architectural Engineering.
• 5+ years of mechanical design experience for building systems.
• Experience across commercial, higher education, and multi-family civic projects.
• Proficient with Revit and AutoCAD; strong communication.

Responsibilities

• Perform mechanical design and technical delivery across a diverse portfolio.
• Support HVAC, air distribution, hydronic and building systems.
• Participate in full project lifecycle from concept to close‑out.
• Analyze site conditions and technical documents to support solutions.
• Prepare and contribute to reports, specs and design docs.
• Ensure designs meet codes and healthcare requirements.
• Collaborate with multi‑disciplinary teams on integrated solutions.
• Support client interactions and project meetings.
• Mentor junior staff and contribute to team development.

Skills

5+ years experience

Strong communication

Collaboration skills

Education

Bachelor’s Degree in Mechanical or Architectural Engineering

Tools

Revit

AutoCAD

Job description

This Opportunity

WSP is currently initiating a search for a Senior Mechanical Engineer to join our Property & Buildings team in Irvine, CA .

This role is ideal for a motivated engineer who brings experience across sectors, including commercial, higher education, and multi-family residential and civic projects, and is looking to grow within a collaborative, design-focused environment.

Be involved in projects with our Property & Buildings Team and be part of a growing organization that meets our clients’ objectives and solves their challenges.

Your Impact

• Perform mechanical engineering design and technical delivery across a diverse portfolio including commercial, higher education, multi-family residential, and civic projects
• Support design of HVAC, air distribution, hydronic, and building systems
• Participate in the full project lifecycle, from concept development through construction and close-out
• Analyze and interpret data from site conditions, drawings, and technical documents to support engineering solutions
• Prepare and contribute to technical reports, specifications, and design documentation
• Ensure designs comply with applicable codes, standards, and sector-specific requirements, including healthcare environments
• Collaborate with multi-disciplinary teams to deliver integrated project solutions
• Support client interactions and project meetings, building strong working relationships
• Mentor junior staff and contribute to team development

Who You Are

Required Qualifications

• Bachelor’s Degree in Mechanical Engineering or Architectural Engineering
• 5+ years of relevant experience in mechanical design for building systems
• Experience supporting projects across commercial, higher education, and multi-family residential and civic projects
• Strong understanding of HVAC systems and mechanical design principles
• Experience supporting projects from design through construction
• Proficiency with Revit, AutoCAD, and related engineering tools
• Strong communication and collaboration skills

Preferred Qualifications

• Professional Engineer (PE) license or on track to obtain
• Experience working on complex commercial, higher education, and multi-family residential and civic projects
• Familiarity with California codes and local jurisdiction requirements
• Experience working with multi-disciplinary engineering teams
• LEED AP or sustainability credentials

WSP Benefits:

WSP provides a comprehensive suite of benefits focused on a providing health and financial stability throughout the employee’s career. These benefits include coverage related to medical, dental, vision, disability, and life; retirement savings; paid sick leave; paid vacation (or other personal time); paid parental leave; and paid time off for purposes of bereavement, voting, and/or attendance at naturalization proceedings.

• coverage related to medical, dental, vision, disability, and life
• retirement savings
• paid sick leave
• paid vacation (or other personal time)
• paid parental leave
• paid time off for purposes of bereavement, voting, and/or attendance at naturalization proceedings

Compensation

Expected Salary: $107,500 - $156,600

WSP USA is providing the compensation range that the company in good faith believes it might pay and/or offer for this position within the state of Colorado, based on the successful applicant’s education, experience, knowledge, skills, and abilities in addition to internal equity and specific geographic location. WSP USA reserves the right to ultimately pay more or less than the posted range and offer additional benefits and other compensation, depending on circumstances not related to an applicant’s sex or other status protected by local, state, and/or federal law.

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About WSP

WSP USA is the U.S. operating company of WSP, one of the world's leading engineering and professional services firms. Dedicated to serving local communities, we are engineers, planners, technical experts, strategic advisors and construction management professionals. WSP USA designs lasting solutions in the buildings, transportation, energy, water and environment markets. With more than 15,000 employees in over 300 offices across the U.S., we partner with our clients to help communities prosper.

www.wsp.com

WSP provides a flexible and agile workplace model while meeting client needs. Employees are also afforded a comprehensive suite of benefits including medical, dental, vision, disability, life, and retirement savings focused on providing health and financial stability throughout the employee’s career.

At WSP, we want to give our employees the challenges they seek to grow their careers and knowledge base. Your daily contributions to your team will be essential in meeting client objectives, goals and challenges. Are you ready to get started?

WSP USA (and all of its U.S. companies) is an Equal Opportunity Employer Race/Age/Color/Religion/Sex/Sexual Orientation/Gender Identity/National Origin/Disability or Protected Veteran Status.

The selected candidate must be authorized to work in the United States.

NOTICE TO THIRD PARTY AGENCIES:

WSP does not accept unsolicited resumes from recruiters, employment agencies, or other staffing services. Unsolicited resumes include any resume or hiring document sent to WSP in the absence of a signed Service Agreement where WSP has expressly requested recruitment/staffing services specific to the position at hand. Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation – no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service.