JobsMechanical EngineerLos AngelesLead Mechanical Engineer - Buildings

WSP

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Lead Mechanical Engineer - Buildings

WSP · Irvine, California, United States

Full-timeHybrid5-10 yrs$123k–$182kListed as no visa sponsorshipProfessional Services
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In short

The Lead Mechanical Engineer will oversee the design of complex HVAC and mechanical building systems for healthcare and institutional projects. This role involves providing technical leadership, mentoring junior staff, and coordinating multidisciplinary design efforts throughout the project lifecycle.

What they're looking for

MUST-HAVE SKILLS

Mechanical engineeringHVAC designBuilding systemsTechnical leadershipProject managementRevitAutoCADHydronic systemsCentral utility plantsPlumbingControlsQA/QCMentorshipLoad calculationsEnergy-efficient solutionsConstruction administrationBachelor's degree in Mechanical EngineeringArchitectural Engineeringclosely related disciplinebuilding systems designexperience designing HVACmechanical systems for commercialhealthcarehigher educationair distributioncentral plant systemsequipment selectionbuilding energy performancemechanical design effortsmechanicalenergy codesindustry standardsmechanical engineering analysisload calculation softwareproject teamsnon-engineering stakeholdersmentor junior staffQC

ALSO MENTIONED

HVACHealthcare Facilities

Candidates must hold a Bachelor's degree in Mechanical or Architectural Engineering and possess at least 7 years of relevant experience. A Professional Engineer (PE) license is required, along with proficiency in Revit, AutoCAD, and building energy performance standards.

About the employer

WSP

WSP is one of the world’s leading engineering, science and infrastructure solutions firms, uniting its multidisciplinary expertise to shape communities to advance humanity. From local beginnings to a globe-spanning presence today, WSP operates in over 50 countries and employs approximately 83,000 professionals, known as Visioneers. Together they pioneer solutions and deliver innovative projects in the transportation, infrastructure, environment, building, energy, water, and mining and metals sectors. WSP is publicly listed on the Toronto Stock Exchange (TSX:WSP).

INDUSTRY
Professional Services
COMPANY
Public Company
HEADQUARTERS
Montreal, Quebec
SIZE
10,001+on LinkedIn
OFFICES
1 on LinkedIn
OPEN HERE
34 roles

KNOWN FOR

Construction ManagementDesign & EngineeringProgram ManagementStrategic ConsultingOperations & Maintenance

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Questions about this role

Is this WSP role remote?
Tagged hybrid.
What does it pay?
The posting lists $122,700–$182,200 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 5-10 years.

The posting, in full

Be involved in projects with our Property & Buildings Team and be a part of a growing organization that meets our clients' objectives and solves their challenges. WSP is currently initiating a search for a Lead Mechanical Engineer for our Irvine, CA office. The ideal candidate will bring strong building systems design experience, technical leadership capabilities, and a preference for experience supporting healthcare facilities and other complex building environments.

▶ READ THE FULL POSTING

This Opportunity

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

WSP is currently initiating a search for a Lead Mechanical Engineer for our Irvine, CA office. The ideal candidate will bring strong building systems design experience, technical leadership capabilities, and a preference for experience supporting healthcare facilities and other complex building environments.

In this role, you will lead and support the design of HVAC and mechanical building systems, including air distribution, central utility plants, hydronic systems, plumbing, controls, and energy-efficient solutions. You will work closely with architects, engineers, contractors, owners, and other stakeholders throughout design and construction while providing technical guidance and mentorship to junior staff.

Your Impact

  • Serve as a lead mechanical engineer for complex Property & Buildings projects, with an emphasis on healthcare and other technically demanding facilities.
  • Lead the design of HVAC systems including air distribution, hydronic systems, central plants, automated temperature controls, and energy-efficient building systems.
  • Develop and review mechanical drawings, specifications, calculations, equipment selections, schedules, and design documentation.
  • Integrate complex mechanical engineering requirements into multidisciplinary facility designs.
  • Coordinate mechanical design activities with architectural, structural, electrical, plumbing, fire protection, and other disciplines.
  • Provide technical oversight and QA/QC reviews of mechanical designs and deliverables.
  • Participate in projects from concept and schematic design through design development, construction documents, and construction administration.
  • Survey and evaluate existing building conditions and develop recommendations for renovations, upgrades, and new systems.
  • Attend client and project meetings and clearly communicate mechanical engineering concepts, recommendations, and design decisions.
  • Build and maintain strong relationships with clients, architects, contractors, vendors, and manufacturers.
  • Provide technical leadership, mentorship, and guidance to junior engineers and designers.
  • Support project managers with scopes, schedules, budgets, and coordination of mechanical deliverables.
  • Assist with proposals, pursuits, presentations, and other business development activities.
  • Remain current with mechanical engineering practices, building codes, sustainability initiatives, and emerging technologies.
  • Exercise responsible and ethical decision-making regarding company funds, resources, and conduct, and adhere to WSP's Code of Conduct and related policies and procedures.
  • Perform additional responsibilities as required by business needs.

Who You Are

Required Qualifications

  • Bachelor's degree in Mechanical Engineering, Architectural Engineering, or a closely related discipline.
  • 7+ years of relevant post-education experience in mechanical engineering and building systems design.
  • Professional Engineer (PE) license required, or ability to obtain California PE registration through reciprocity as appropriate.
  • Demonstrated experience designing HVAC and mechanical systems for commercial, institutional, healthcare, laboratory, higher education, or other complex building environments.
  • Strong knowledge of air distribution, hydronic systems, central plant systems, plumbing, controls, equipment selection, load calculations, and building energy performance.
  • Experience leading mechanical design efforts and coordinating work across multidisciplinary project teams.
  • Working knowledge of relevant building, mechanical, and energy codes and industry standards.
  • Proficiency with Revit and AutoCAD and familiarity with mechanical engineering analysis and load calculation software.
  • Strong written, verbal, and interpersonal communication skills with the ability to communicate effectively with clients, project teams, and non-engineering stakeholders.
  • Demonstrated ability to mentor junior staff and provide technical direction with strong attention to QA/QC.
  • Ability to manage priorities and deliver high-quality work across multiple concurrent projects.

Preferred Qualifications

  • Healthcare project experience, particularly acute-care hospitals, medical office buildings, ambulatory care, laboratories, or other technically complex healthcare environments.
  • Knowledge of healthcare design requirements and standards, including FGI, ASHRAE, and NFPA.
  • Experience with renovation projects in active or occupied healthcare environments.
  • Experience managing small to mid-size projects or serving as the mechanical discipline lead on larger multidisciplinary projects.
  • Experience developing and maintaining relationships with healthcare clients, architects, and contractors.
  • LEED accreditation or other sustainability credentials.
  • Master's degree in Mechanical Engineering or a related discipline.

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.

Compensation:

Expected Salary (all locations): $122,700 - $182,200

WSP USA is providing the compensation range that the company in good faith believes it might pay and offer for this position, based on the successful applicant’s education, experience, knowledge, skills, 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.

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.

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This listing comes from WSP's own careers site. Apply links go to the employer. Company facts are from WSP's public profile. Last checked 13 Nov 2026.