Hvac Engineer

Mechanical Engineer - HVAC & Plumbing (Mission-Critical Facilities)

Location:

Irvine, CA Work Model:

Onsite ramp → Hybrid (performance-based)

Employment Type:

Long-term consulting opportunity with strong conversion intent About the Firm This opportunity is with a design-focused architecture and engineering practice known for delivering highly technical, high-performance facilities. The firm specializes in complex project types—including federal, defense, and other mission-critical environments—where system reliability, precision, and compliance are essential. Their teams are lean, highly collaborative, and execution-driven, emphasizing real engineering contribution over hierarchy. Engineers here are trusted to own their work, apply judgment, and contribute directly to design outcomes that have real-world impact. The Role This role is for engineers who still do the work . If you are a Mechanical Engineer who actively designs systems, runs calculations, and owns deliverables—and you're looking to stay deeply technical rather than move into coordination or management-only roles—this is a strong fit. You'll support mission-critical federal and defense projects where HVAC and plumbing systems demand a higher level of rigor, redundancy, and performance than typical commercial buildings. Responsibilities You'll serve as a hands-on mechanical contributor under senior guidance while owning meaningful scope: Design HVAC and plumbing systems for complex facilities Perform mechanical calculations independently, including: Load calculations Equipment sizing Pump calculations Produce and contribute directly to Revit-based design documentation Apply sound engineering judgment when validating system results Support multiple concurrent projects within a fast-moving, technical team Coordinate with architectural, electrical, and structural disciplines Participate in occasional local site visits for field verification

Note:

This is not a project management or redline-only role—this is a true design engineering position. What Sets This Opportunity Apart Execution is valued — impact comes from doing the work, not just overseeing it Technically demanding projects — focused on federal and defense infrastructure Purpose-built systems — performance, redundancy, and reliability are critical Lean, capable teams — minimal bureaucracy, fast decision-making Clear expectations — strong alignment between leadership and engineering staff

You'll Likely Succeed If You Can Say:

"I designed this system." "I ran these calculations." "I produced these Revit drawings." "I've done this across multiple projects." Minimum Qualifications 5-7+ years of experience in mechanical building systems Hands-on HVAC and plumbing design experience (both required) Strong background in mechanical calculations Proficiency in Revit (production experience required; refreshers acceptable) Ability to work onsite during initial ramp-up period U.S. citizenship (required for federal project access) Preferred Qualifications EIT or PE (helpful, not required) Federal, VA, or DoD project experience Experience with industrial or healthcare facilities Controls coordination experience Not the

Right Fit If:

Your recent work has been primarily project management or coordination-focused You haven't personally designed systems or performed calculations in recent roles Your experience is limited to HVAC with minimal plumbing exposure You are seeking a fully remote position Compensation $120,000 - $150,000 base salary (DOE) Compensation is aligned with hands-on technical capability, independence, and depth of experience—not just tenure or credentials. Why Engineers Join This Team Technically challenging, meaningful work Long-term opportunity with strong potential for permanent conversion Hybrid flexibility after initial onboarding and performance ramp Culture that prioritizes engineering ownership, judgment, and contribution Job Type & Location This is a Permanent position based out of Irvine, CA. Pay and Benefits The pay range for this position is $57.00 - $72.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a hybrid position in Irvine,CA.

Application Deadline This position is anticipated to close on Jun 2, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.

San Francisco Fair Chance Ordinance:

Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.