Senior Technician, Facility Services – HVAC/Refrigeration

Walmart

Senior Technician overseeing HVAC/R systems installation and maintenance at Walmart. Leading diagnostics, troubleshooting, and preventive maintenance for optimal performance in San Antonio, TX.

Posted 8/1/2026full-timeSan Antonio • Texas • 🇺🇸 United StatesSenior💰 $35 - $70 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in overseeing HVAC/R system installation, commissioning, and maintenance while ensuring compliance with safety and environmental standards. Proven ability to lead teams, conduct training, and manage operational needs effectively.

Highest-signal resume keywords

HVAC/R System InstallationRefrigerant Handling CertificationPreventive Maintenance ProgramsTeam Leadership and MentoringCompliance with OSHA and EPA Standards

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

HVAC/R DiagnosticsTroubleshooting Mechanical IssuesDuctwork InstallationControl Panel ManagementRefrigeration System ManagementPreventive MaintenanceIndoor Air Quality ComplianceCold Chain RequirementsParts Inventory ManagementService Call Coordination

Soft Skills

Team CoordinationMentoringCommunicationProblem-SolvingTraining Delivery

Tools & Technologies

Heavy MachineryHVAC/R ToolsElectronic Documentation SystemsMaintenance LogsExpense Vouchers

Certifications & Qualifications

Type I EPA CertificationType II EPA CertificationUniversal EPA CertificationHVAC-R/Mechanical Journeyman

Industry Keywords

Commercial RefrigerationGrocery Rack RefrigerationFederal HVAC CodesState HVAC CodesLocal HVAC CodesEnvironmental GuidelinesOzone-Depleting RefrigerantsField Practices SupervisionOperational Needs AssessmentVendor Relationship Management

About the role

Key responsibilities & impact

Oversees installation and commissioning of HVAC/R systems, including ductwork, control panels, and building pneumatics.
Leads diagnostics and troubleshooting of mechanical, electrical, and refrigerant issues across commercial and industrial systems.
Implements and monitors preventive maintenance programs to extend equipment life and reduce downtimes.
Manages rack systems, walk-ins, reach-ins, and supermarket refrigeration units, ensuring optimal performance and compliance.
Uses heavy machinery.
Submits required written and electronic information (for example, expense vouchers, weekly summaries, work orders, maintenance logs).
Ensures adherence to OSHA standards and EPA refrigerant handling protocols by supervising field practices and documentation.
Conducts inspections and repairs in accordance with federal, state, and local HVAC/R codes, including indoor air quality and cold chain requirements.
Reclaims ozone-depleting refrigerants and maintains compliance with environmental guidelines.
Leads HVAC/R field teams by coordinating work assignments, mentoring less-experienced Technicians, and managing escalated service issues.
Delivers hands-on training sessions on safety, control troubleshooting, and system operations at company facilities, offsite locations, or vendor sites.
Evaluates Technician skill sets and provides feedback to senior leadership to support workforce development.
Participates in an on-call rotation to support business critical needs outside of standard business hours.
Manages refrigerant levels, parts inventory, and vendor relationships to ensure the timely availability of materials.
Tracks and orders HVAC/R parts, records purchases and usage, and ensures contract compliance with external service providers.
Coordinates service calls and manages regional/market workloads to meet business priorities and timelines.
Supports the implementation of HVAC/R business solutions by identifying operational needs, monitoring progress, and adapting to organizational changes.

Requirements

What you’ll need

Option 1: 3 years’ experience in HVAC/grocery rack refrigeration.
Option 2: 6 years’ experience in HVAC/grocery rack refrigeration and Associate of Applied Science (AAS) in Air Conditioning and Refrigeration.
Hold and maintain Type I and Type II or Universal Environmental Protection Agency certification for refrigerant handling.
Where required, HVAC-R/ Mechanical Journeyman.
1 year’s experience in plumbing, electrical, material handling equipment, or related area or 2 years’ Walmart store experience.
Valid state-issued driver’s license and ability to pass a motor vehicle report.
Commercial driving record with no convictions for DUI, DWI, OUI within the last five (5) years.
No preventable accidents while operating a commercial motor vehicle in the last three (3) years.

Benefits

Comp & perks

Health benefits include medical, vision and dental coverage.
Financial benefits include 401(k), stock purchase and company-paid life insurance.
Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting.
Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.
Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates.