Mechanical Systems Technician (HVAC & Boiler Operations)

Energy Systems Group (ESG); San Diego (CA); On-site; USD 52,706 - 61,992; Full time

Benefits offered by this job

Tuition reimbursement

Comprehensive health insurance

401(k) Savings Plan

Paid Vacation and Personal/Sick Leave

Job summary

A leading infrastructure solutions provider is seeking a Mechanical Systems Technician (HVAC & Boiler Operations) in San Diego. The role involves operating and maintaining steam boilers and HVAC systems, requiring 5 years of relevant experience and HVAC certification. Benefits include comprehensive health insurance, 401(k) plan, paid time off, and competitive hourly pay ranging from $38.26 to $45.00 based on experience. Join our operations team to ensure infrastructure readiness for critical projects.

Qualifications

• 5 years of related experience in boiler, HVAC, or mechanical systems.
• Ability to perform root cause analysis and corrective action development.
• OSHA 10, NFPA 70, and arc flash training (or ability to complete within 3 months).

Responsibilities

• Operate and maintain high‑pressure steam boilers and HVAC units.
• Conduct water treatment for boiler systems.
• Troubleshoot mechanical and electrical issues.

Skills

HVAC systems knowledge

Mechanical diagnostic skills

EPA 608 Certification

Communication skills

Education

High School Diploma or GED

Vocational training in HVAC

Job description

Mechanical Systems Technician (HVAC & Boiler Operations)

ENERGY SYSTEMS GROUP is looking for a Mechanical Systems Technician (HVAC & Boiler Operations) to join our Operations Services team at our Coronado Naval Base Energy Center.

Essential Functions Of The Position Include

• Operate, monitor, and maintain high‑pressure steam boilers, hot water boilers, split systems, and HVAC units
• Interpret readings on gauges, meters, and digital controls to ensure safe, efficient operation
• Adjust system controls to meet real‑time heating, cooling, and process demands
• Record operational data in logs and digital work order systems
• Maintain boilers, compressors, air handlers, pumps, and related equipment
• Conduct water treatment for boiler and other water systems; analyze results and adjust chemicals as required
• Perform HVAC diagnostics including refrigerant pressure checks, airflow measurements, and electrical testing
• Maintain steam lines, traps, strainers, insulation, and distribution systems
• Service and maintain split systems, package units, ventilation systems, and air distribution components
• Perform diagnostic tests on lubricants, fuels, oils; sample and submit for analysis
• Maintain air compressors, pneumatic systems, and associated controls
• Troubleshoot mechanical and electrical issues to ensure minimal downtime
• Perform general building maintenance including basic carpentry, plumbing, and electrical tasks
• Work rotating on‑call schedule including nights, weekends, and holidays
• Respond to after‑hours service calls to maintain operational readiness
• Document work progress and effectively communicate system conditions to supervisors
• Follow safety protocols, obtain permits, conduct hazard analyses, and ensure PPE compliance
• Perform other duties as assigned by management

Your Background Includes

• High School Diploma or GED
• Vocational/technical training in HVAC, boiler operation, or mechanical systems
• 5 years of related experience in boiler, HVAC, or mechanical systems
• EPA 608 Certification, required
• Basic computer skills including data entry, work orders, and daily logs
• OSHA 10, NFPA 70, and arc flash training (or ability to complete within 3 months)
• Experience with mechanical and electrical systems

A Bonus To Have

• Associate’s or technical degree in HVAC, mechanical systems, or related field
• 10 years of related experience in boiler operations, HVAC, or energy management
• Experience with steam systems, ventilation, and hot water systems
• Experience in preventative and predictive maintenance programs
• Ability to perform root cause analysis and corrective action development
• Excellent verbal and written communication skills

What We Bring To You

• Professional growth and development programs including tuition reimbursement
• Comprehensive health, dental, vision insurance plans and wellness plans for employee and your family
• Life insurance, short‑term disability, long‑term disability, and supplemental benefits
• 401(k) Savings Plan
• Nine Paid Holidays
• Paid Vacation and Personal/Sick Leave
• Paid Parental Leave for the birth, adoption, or placement of a child/children
• Highly competitive salaries and incentive structure
• Hourly pay range: $38.26 to $45.00, commensurate with experience

We Want You To Know

ESG is an Equal Employment Opportunity Employer. We value talent and understand that our colleagues allow us the opportunity to deliver an exceptional customer experience. We achieve our goals through teamwork and conduct our business with integrity. Join our world‑class team to provide mission‑critical infrastructure solutions for K‑12 schools and universities to local, state and federal government agencies and more.

The Company shall abide by the requirements of 41 CFR 60‑1.4(a), 60‑300.5(a), and 60‑741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on race, color, religion, sex, sexual orientation, gender identity, or national origin. Moreover, these regulations require that covered prime contractors and subcontractors take affirmative action to employ and advance in employment individuals without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status or disability.