Control Systems Engineer - Summer 2026 Internship
About The Position
Clean Harbors , in Deer Park , TX, is looking for an intern (Control Systems Engineer) to join their Facility Support Group during Summer 2026 . This position assigned has responsibilities for support of the control systems (DCS, PLC, SIS, etc.). The main responsibility is to deliver, maintain, and upgrade the control systems that meet production’s requirements, perform as necessary to achieve functionality and safety obligations, and maximize system capability. This includes the leadership of the migration and lifecycle system process, maintenance recommendation and oversight of installed base equipment, co-ordination of concepts with production. Why work for Clean Harbors? Health and Safety is our #1 priority and we live it 3-6-5! Competitive pay and benefits Comprehensive health benefits coverage after 30 days Employee Stock Purchase Plan Group 401-K retirement savings with company matching Opportunities for growth and development for all the stages of your career Generous paid time off, company paid training and tuition reimbursement Positive and safe work environments
Requirements
- Undergraduate student pursuing a bachelor’s degree in Computer Engineering, Electrical Engineering, Electronics Engineering, Network Engineering, or related field (sophomore year or higher preferred).
- Entry-level position: prior exposure to networking concepts or industrial automation is a plus.
- Basic understanding of networking fundamentals (TCP/IP, VLANs, routing, switching).
- Familiarity with firewalls, VPNs, and cybersecurity principles is desirable.
- Strong communication skills and ability to work in a team environment.
- Proficient in Microsoft Office; experience with Visio or network diagram tools is a plus.
- Legal authorization to work in the United States (no sponsorship provided).
Responsibilities
- Ensure Health and Safety is the number one priority by following all company policies and procedures.
- Work within Operational Technology (OT) environments and alongside industrial equipment such as rotating machinery, instrumentation, and electrical systems.
- Assist in designing, maintaining, and troubleshooting plant control networks (PCN) to ensure secure and reliable connectivity for DCS, PLC, SIS, and other automation systems.
- Support network lifecycle activities, including upgrades, patching, and obsolescence planning for OT network infrastructure.
- Participate in network health checks, diagnostics, and performance monitoring to maintain system integrity.
- Collaborate with Reliability and Automation teams to: Improve network reliability and uptime. Optimize network architecture for cost efficiency and scalability. Implement cybersecurity best practices for OT environments.
- Assist in incident investigations related to network failures and contribute to corrective actions.
- Help maintain network documentation, including topology diagrams, IP addressing schemes, firewall rules, and switch configurations.
- Support capital projects by reviewing network requirements and ensuring compliance with corporate standards.
- Learn and apply industrial communication protocols (e.g., Ethernet/IP, Modbus TCP, OPC UA) and network segmentation principles.
- Provide technical assistance for remote access solutions and secure vendor connectivity.
Benefits
- Competitive pay and benefits
- Comprehensive health benefits coverage after 30 days
- Employee Stock Purchase Plan
- Group 401-K retirement savings with company matching
- Opportunities for growth and development for all the stages of your career
- Generous paid time off, company paid training and tuition reimbursement
- Positive and safe work environments
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What This Job Offers
Career Level
Intern
