About the role#
We are looking for students to join our Cox Energy and Sustainability team as Building Automation Specialist Interns. You will work under the direction of experienced technicians and engineers to gain hands-on experience with the installation, commissioning, and optimization of building automation systems. This role involves working in both office and field environments to support commercial and industrial projects.
What you'll do#
- Assist with the installation, startup, and commissioning of building automation and HVAC control systems.
- Support point-to-point checkout, device verification, and functional testing.
- Troubleshoot sensors, actuators, control panels, and communication networks like BACnet and Modbus.
- Help technicians and engineers with field documentation, project records, and system reporting.
- Participate in system integration and verification for new construction and retrofit projects.
- Observe customer training and system turnover processes while following safety and OSHA guidelines.
What you'll need#
- Current enrollment in a degree program for Mechanical Engineering, Electrical Engineering, HVAC Engineering Technology, Building Automation, or a related technical field.
- Ability to read technical drawings and schematics.
- Strong analytical, problem-solving, and troubleshooting skills.
- Proficiency with Microsoft Office applications.
- A valid driver's license.
- Willingness to work in field environments, including mechanical rooms and rooftops.
Location & details#
- Location: Randolph, Massachusetts.
- Term: Fall 2026.
- Work Modality: On-site, full-time.
- This is a paid internship.
About Cox Engineering
Cox Engineering designs, fabricates, and installs HVAC piping and sheet metal ductwork. The company serves commercial clients from its base in Randolph, Massachusetts. Christopher J. Cox founded the firm in 1914. It currently employs between 201 and 500 people.
How to get in at Cox Engineering
Securing an internship at Cox Engineering requires a proactive approach to the application process. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you apply among the first, as early applicants get seen before the pile grows. Being at the front of the line often makes the difference when recruiters start their initial screening. You can also use Intern Insider to surface the recruiters behind the company's roles so you can reach out directly to ask about the role or a referral, which materially improves response rates. Direct outreach shows you have done your homework and helps you stand out from the standard digital queue.



