Mechanical Engineer

ROI Agency•Irvine, CA

1d•$120,000 - $170,000•Remote

About The Position

The Mechanical Engineer serves as the lead mechanical subject matter expert for mission-critical projects, including data centers and other high-availability facilities. The role provides technical authority for HVAC, cooling infrastructure, heat rejection systems, controls integration, and mechanical resiliency strategies, developing energy-efficient and maintainable solutions that meet industry standards and client performance objectives. The position leads mechanical design across feasibility, concept, schematic, design development, construction documents, and construction administration. It is remote, with occasional project-site travel for construction administration visits and surveys of existing facilities. Candidates who prefer an office-based or hybrid arrangement may discuss available options. Anticipated travel is 10%–25%, with approved business travel expenses reimbursed under company policy.

Requirements

5–10 years of mechanical design experience in mission-critical environments.
Experience with hyperscale, colocation, enterprise, and edge data center environments.
Bachelor's degree in Mechanical Engineering.
Strong understanding of ASHRAE, NFPA, IMC, and local building code requirements.
Excellent communication, technical leadership, and client-facing skills.

Nice To Haves

Experience with hyperscale, colocation, enterprise, healthcare, or other high-availability facilities.
Familiarity with direct-to-chip and immersion cooling applications.
Experience with central utility plants ranging from 3 MW to 100+ MW campuses.
Knowledge of ASHRAE TC 9.9 thermal guidelines, energy efficiency strategies, water usage effectiveness (WUE), and power usage effectiveness (PUE) considerations.
Experience supporting commissioning, integrated systems testing (IST), and operational readiness reviews.
Professional Engineer (PE) license, or active pursuit of licensure.
LEED Accredited Professional and/or Certified Energy Manager (CEM) credential.

Responsibilities

Serve as the lead mechanical subject matter expert for mission-critical and data center projects.
Develop cooling system concepts, including air-cooled and water-cooled chilled water plants, direct expansion systems, and liquid cooling solutions.
Lead mechanical design through feasibility, concept, schematic, design development, construction documents, and construction administration phases.
Perform and oversee cooling load analysis, equipment selection, and redundancy evaluations.
Develop mechanical resiliency strategies for N, N+1, 2N, and concurrently maintainable designs.
Coordinate with electrical, controls, plumbing, structural, telecommunications, and architectural disciplines.
Provide technical oversight of vendor equipment, including chillers, cooling towers, CRAHs, AHUs, fan walls, CDU systems, pumps, and BAS controls.
Support utility capacity assessments and campus master planning efforts.
Lead technical reviews and QA/QC processes, and support commissioning activities.
Mentor junior mechanical engineers and support technical staff development.

Benefits

Medical insurance with UnitedHealthcare plan options and Kaiser options in California.
Health Savings Account (HSA) or Flexible Spending Account (FSA), depending on medical plan selection.
Dental insurance through Delta Dental.
Vision insurance through EyeMed.
Employee Assistance Program (EAP).
401(k) retirement plan with up to 4.5% in total employer contributions, subject to eligibility and plan terms.
Student loan payment matching through eligible employer retirement contributions.
Company-paid life and AD&D insurance.
Company-paid short-term and long-term disability insurance.
Paid time off (PTO).
Parental leave.
Optional supplemental life and long-term disability insurance.
Optional accident, critical illness, and hospital indemnity insurance.
Optional legal services and identity theft protection.
Periodic opportunities to purchase company shares directly.