Building Automation Systems / Controls Engineering Intern

About the role

Critical Systems, LLC is looking for a motivated BAS/Controls Engineering Intern to join its Building Automation Systems team. This internship offers hands‑on experience with monitoring, controlling, and optimizing HVAC and building systems in mission‑critical facilities.

Key responsibilities

• Assist Controls Engineers with design, programming, and application of Building Automation Systems.
• Support development and review of control sequences for HVAC commissioning and maintenance.
• Help develop and modify BAS control logic and programming.
• Learn interaction of sensors, actuators, controllers, and field devices with HVAC systems.
• Assist with testing, troubleshooting, and commissioning of BAS/controls systems.
• Participate in project meetings and coordinate controls with mechanical, electrical, and other building systems.
• Prepare documentation, spreadsheets, reports, and other project deliverables.

Required profile

• Currently pursuing a Bachelor’s degree in Mechanical Engineering, Electrical Engineering, BAS, HVAC Technology, or a related field.
• Strong interest in automation, controls, HVAC, and building systems.
• Basic understanding of mechanical, electrical, or control systems.
• Ability to read basic engineering drawings, schematics, and technical documentation.
• Attention to detail and willingness to learn.

Required skills

• Familiarity with programming, logic, or scripting (a plus).
• Experience with AutoCAD, Visio, Niagara, JCI, Delta Controls, or other BAS platforms (a plus).