Mechanical Engineer – HVAC & Plumbing; Mid‑to‑Senior IC

Job Title:

Mechanical Engineer – HVAC & Plumbing ( Individual Contributor)

Location:

Irvine, CA

Work Model:
Onsite ramp Hybrid (performance‑based)

Employment Type:

Long‑term consulting role with strong conversion intent

This role is for engineers who still do the work.

If you’re a Mechanical Engineer who designs HVAC and plumbing systems, runs your own calculations, and produces construction documents in Revit, this is worth a conversation.

This opportunity supports mission‑critical federal and defense facilities where HVAC and plumbing systems are more complex than typical commercial buildings. Reliability, redundancy, and performance matter here—and engineers are expected to own their work from concept through construction documents.

This is not a project management role.

This is not coordination‑only or redline‑only.

This is a hands‑on production role.

You’ll be a hands‑on mechanical contributor, owning real scope and producing immediately:

• Design HVAC and plumbing systems for complex facilities
• Run mechanical calculations independently, including:
  • Load calculations
  • Equipment sizing
  • Pump calculations
• Produce Revit‑based construction documents (direct authorship required)
• Validate inputs/outputs and apply engineering judgment when results don’t look right
• Support multiple projects concurrently in a lean engineering team
• Coordinate with architectural, electrical, and structural disciplines
• Participate in short, local site visits for field verification

This team needs someone who can produce immediately—this is not a training role for Revit or construction documentation.

• 5–10+ years of HVAC & plumbing system design experience
• Strong experience with mechanical calculations (loads, sizing, pumps)
• Proficiency in Revit MEP (current production experience required)
• Experience designing both HVAC and plumbing systems
• Experience producing construction documents (not just coordination/redlines)
• EIT required

• PE license
• Federal/DoD/VA project experience

This is a Permanent position based out of Irvine, CA.

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 position 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)

This is a hybrid position in Irvine, CA.

This position is anticipated to close on Jul 13, 2026.

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 actalentaccom for other accommodation options.

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.

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.

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.