Senior Controls Engineer (I&E)

Clean Harbors, in Deer Park, TX, is looking for a Senior I&E Control Specialist to support 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

Key Responsibilities

• Lead safety, environmental compliance, and management of change (MOC) activities for all automation and control system modifications.
• Own the reliability, availability, and performance of DCS, PLC, SIS, HMI, historian, virtualization, servers, workstations, and process control network infrastructure across assigned sites.
• Monitor system health, execute preventive maintenance strategies, and resolve issues proactively to minimize downtime and operational risk.
• Develop, implement, and optimize control strategies, logic, alarms, interlocks, graphics, sequencing, loop tuning, and advanced process control applications.
• Provide advanced troubleshooting and technical support for control systems, OT networks, instrumentation, hardware, software, and cybersecurity-related issues.
• Support instrumentation reliability, commissioning, calibration, SIS lifecycle activities, proof testing, and functional safety programs in partnership with site I&E teams.
• Lead automation lifecycle management, including technology roadmaps, obsolescence planning, migrations, software upgrades, cybersecurity initiatives, and long-term capital planning.
• Manage control system assets, critical spares, vendor relationships, service agreements, and total cost of ownership to maximize business value.
• Maintain secure OT infrastructure, including backups, disaster recovery, remote access, patch management, network administration, and cybersecurity compliance.
• Maintain accurate technical documentation, including P&IDs, loop drawings, control narratives, logic records, I/O databases, network diagrams, and system architecture documents.
• Lead root cause analyses and continuous improvement initiatives to improve reliability, safety, and operational performance.
• Support capital projects, outages, turnarounds, FAT/SAT testing, commissioning, startup, and contractor/vendor management activities.
• Drive standardization, best practices, performance metrics, dashboards, and configuration quality across all supported facilities.
• Provide technical leadership, mentoring, training, regional support, and on-call assistance as required.

Control Systems and Technical Scope

• ABB 800xA and/or INFI 90/Symphony (Essential) with hands-on experience in configuration, diagnostics, lifecycle management, system administration, and architecture design.
• Emerson DeltaV and Rockwell Automation (Highly Desired) including DeltaV, ControlLogix, Studio 5000, FactoryTalk, communications infrastructure, troubleshooting, and lifecycle support.
• SCADA, HMI, and Historian Platforms including AVEVA/Wonderware, Canary Historian, and related industrial data management systems.
• Industrial Networks and Communications including TCP/IP, OPC, Modbus, Profibus, FOUNDATION Fieldbus, EtherNet/IP, wireless technologies, and secure remote access solutions.
• Control System Infrastructure and Cybersecurity including process control networks, servers, workstations, managed switches, domain services, virtualization platforms (VMware), system backups, disaster recovery, and OT cybersecurity best practices.
• Process Control and Functional Safety including alarm management, DCS interlocks, SIS lifecycle management, loop tuning, sequence control, basic and advanced process control, and process optimization initiatives.

Required Qualifications

• Bachelor’s degree in electrical, Chemical, Controls, Automation, Instrumentation, or related engineering discipline preferred; equivalent industrial automation experience may be considered.
• Minimum 10 years of progressive control system experience in chemical, refining, hazardous waste, manufacturing, or other continuous process industries.
• Demonstrated hands-on experience with ABB 800xA and INFI 90/Symphony systems, including control system maintenance, programming, troubleshooting, commissioning, startup, and lifecycle support.
• Strong knowledge of control system engineering fundamentals, including P&IDs, loop drawings, electrical and control system drawings, control narratives, ladder logic, function block logic, cause-and-effect documentation, and process control strategies.
• Experience with industrial networking, virtualization, servers, workstations, process control networks, backups, cybersecurity fundamentals, and OT infrastructure management.
• Proven ability to work independently, lead technical initiatives, support outages and on-call requirements, coordinate across multiple disciplines, and travel approximately 25% to support regional facilities.

Preferred Qualifications

• Mandatory ABB experience combined with either Emerson DeltaV or Rockwell Automation experience, with preference given to candidates who possess ABB plus DeltaV expertise, or ABB plus Rockwell ControlLogix / FactoryTalk expertise.
• ABB, Emerson, or Rockwell automation training, certifications, and experience with industrial networking standards, virtualization platforms, and control system infrastructure.
• Experience supporting SIS lifecycle management, functional safety programs, alarm management, OT cybersecurity initiatives, and recognized standards such as ISA/IEC 62443, NIST, and CISA guidance.

Travel and Work Location Expectations 

• The position is based at the Deer Park Incineration Site in Texas or Utah
• Approximately 25% travel is expected. 
• Aragonite support is expected monthly, typically 4 to 5 days per trip. 
• Kimball, El Dorado, and Sarnia each have two planned outages per year; travel is expected for these outages and may be required for other critical support needs. 
• Additional travel may be required for emergencies, projects, commissioning, training, system migrations, vendor activities, or business priorities.