Senior Mechanical Maintenance Tech – Onsite (HVAC & Piping)

Sandia National Laboratories; California (MO); On-site; USD 76,000 - 146,900; Full time

Job summary

Sandia National Laboratories' California Site is seeking a Senior/Principal Mechanical Maintenance Technician to oversee HVAC, plumbing, and Facility Control System maintenance across ~80 buildings. Onsite role requiring collaboration with cross-functional teams to ensure reliable, compliant operations.

You will diagnose, repair, and maintain mechanical and electrical equipment, review drawings and specs, and support control system upgrades while adhering to safety and regulatory requirements.

Qualifications

• High school diploma or GED plus five years of relevant maintenance experience.
• Experience with maintenance of HVAC systems (chillers, boilers, AHUs) and plumbing.
• Ability to obtain and maintain a DOE Q-level security clearance.

Responsibilities

• Diagnose, troubleshoot, and repair HVAC, plumbing, and FCS equipment.
• Perform preventive and emergency maintenance on HVAC units, boilers, chillers, pumps, and piping.
• Inspect facilities and equipment to identify issues and prevent downtime.
• Interpret blueprints, wiring diagrams, and technical specs to guide maintenance and installation.
• Monitor system performance and respond to service requests prioritizing urgency.
• Collaborate with Facility Managers and Engineers to plan maintenance and upgrades.
• Support installation and upgrade projects, including control system improvements.

Skills

HVAC maintenance

Plumbing systems

DDC controls

Office software

WebCTRL

Education

Journeyman Apprenticeship

ABET-accredited program

Tools

Word

Excel

Outlook

Teams

CMMS

Job description

Sandia National Laboratories' California Site is seeking a Senior/Principal Mechanical Maintenance Technician to oversee HVAC, plumbing, and Facility Control System maintenance across ~80 buildings. Onsite role requiring collaboration with cross-functional teams to ensure reliable, compliant operations.

You will diagnose, repair, and maintain mechanical and electrical equipment, review drawings and specs, and support control system upgrades while adhering to safety and regulatory requirements.