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BAS Field Technician III

McMillan James Equipment Company
Grapevine, TX Full Time
POSTED ON 4/1/2026
AVAILABLE BEFORE 6/1/2026

Job Overview

The BAS Field Technician III plays a key role in the installation, startup, programming, and commissioning of complex building automation systems. This position is a senior-level field role responsible for ensuring systems operate as designed, mentoring junior technicians, and providing technical expertise in the field.

As a BAS Field Tech III, you’ll work directly with project teams, customers, and commissioning agents to deliver efficient, reliable, and well-integrated control systems — keeping projects on schedule and aligned with MJEC’s commitment to quality and performance.

Responsibilities

  • Lead field installation, wiring, programming, and startup of building automation systems (HVAC controls, lighting, and integration projects).
  • Configure and test system components including controllers, sensors, actuators, and networked devices.
  • Commission systems, perform point-to-point checkout, and verify sequences of operation.
  • Troubleshoot complex technical issues and ensure corrective actions are documented and implemented.
  • Mentor and train BAS Field Tech I and II team members, promoting safety, efficiency, and technical growth.
  • Collaborate with project managers, engineers, and customers to clarify design intent and resolve field challenges.
  • Review submittals, drawings, and specifications to ensure proper installation and operation of all control systems.
  • Complete detailed documentation, redlines, and daily progress reports.
  • Support warranty calls, service projects, and ongoing system optimization.
  • Adhere to all MJEC safety policies and ensure compliance with local codes and standards.

 Qualifications

  • Minimum 5 years of experience in building automation, HVAC controls, or related technical field.
  • Strong knowledge of DDC (Direct Digital Controls), networking, and HVAC system operation.
  • Experience with Siemens, Johnson Controls, Trane, Distech, or similar BAS platforms preferred.
  • Ability to read and interpret mechanical drawings, electrical schematics, and control diagrams.
  • Proficiency with control system programming and commissioning tools.
  • Excellent communication, problem-solving, and customer service skills.
  • Valid driver’s license and clean driving record.

 Physical Requirements

  • Ability to lift and carry up to 50 lbs.
  • Ability to work in various environments, including confined spaces, attics, crawlspaces, and at heights.
  • Ability to stand, bend, kneel, and climb for extended periods.

 Work Environment

  • This is a field-based position requiring travel to commercial, institutional, or and industrial buildings.
  • Work hours may vary based on project schedules and may include evenings, weekends, and overtime.

 Compensation & Benefits

  • Health Insurance: Employer covers employee cost; dependents paid by the employee.
  • Vision and Dental Insurance: Employee-paid.
  • Basic Life Insurance: Employer-provided coverage up to $50,000.
  • Health Reimbursement Account (HRA): Company pays a portion of the medical deductible.
  • 401(k) Plan: Eligible after 1 year of service, with a 4% employer match.
  • Ancillary Insurance options: disability, critical illness, hospital indemnity, accident and more.
  • Paid Time Off (PTO): 15 days annually.
  • Holidays: 9 company-paid holidays.
  • Bonus: Eligibility for annual bonus.
  • Learning: Professional development and career growth opportunities.

Salary : $80,000 - $120,000

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