Mission-Critical HVAC Technician | BAS & Controls Expert

M.C. Dean, Inc; Washington (District of Columbia); On-site; USD 69,000 - 76,000; Full time

Benefits offered by this job

Competitive salary

Medical, dental, vision, life, and DI

Paid time off

401k Retirement Plan

Tuition reimbursement

Military Reserve pay offset

Paid maternity leave

Job summary

M.C. Dean, Inc. seeks an experienced HVAC technician to operate, troubleshoot, and maintain complex mechanical systems across mission-critical facilities.

You will work with mechanical engineers and BAS/DDC controls, diagnosing issues, performing preventive maintenance, and supporting commissioning activities. The role requires hands-on experience with chillers, boilers, pumps, VAVs, and related equipment, plus strong reading of schematics and electrical interfaces.

Qualifications

• High school diploma or GED required with extensive HVAC experience.
• Hands-on ability to troubleshoot, diagnose, maintain, and repair HVAC/mechanical equipment.
• Working knowledge of BAS/DDC systems and how they support troubleshooting.
• Ability to read mechanical drawings and electrical/control schematics.
• Ability to operate with minimal supervision and escalate when needed.

Responsibilities

• Operate, maintain, troubleshoot, and repair HVAC and mechanical systems.
• Troubleshoot and diagnose complex mechanical equipment (chillers, boilers, cooling towers, pumps, AHUs, VAVs).
• Understand interaction between mechanical, electrical, and BAS/automation systems.
• Monitor BAS to evaluate alarms, statuses, setpoints, trends, and performance.
• Perform preventive, predictive, and corrective maintenance.
• Support commissioning, recommissioning, and start-up activities.
• Review operation against drawings, sequences, and manufacturer requirements.
• Mentor less experienced technicians and ensure safety compliance.

Skills

HVAC troubleshooting

Mechanical maintenance

BAS / DDC controls

Reading schematics

Electrical coordination

Safety/compliance

Education

High school diploma or GED

Job description

M.C. Dean, Inc. seeks an experienced HVAC technician to operate, troubleshoot, and maintain complex mechanical systems across mission-critical facilities.

You will work with mechanical engineers and BAS/DDC controls, diagnosing issues, performing preventive maintenance, and supporting commissioning activities. The role requires hands-on experience with chillers, boilers, pumps, VAVs, and related equipment, plus strong reading of schematics and electrical interfaces.