Controls Engineer II

Career Opportunities with Thermo Systems LLC

Careers At Thermo Systems LLC

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Location: Onsite in Mansfield, TX or Duquesne, PA
Employment Status: Full Time | Direct Hire
Compensation: $80,000–$110,000 per year + Annual Bonus Eligibility
Travel: Up to 25% local travel
On-Call: May participate in an on-call rotation based on location and project requirements

Guided by The Thermo Way
, we are unified, dynamic, and committed to delivering excellence. Our culture is grounded in three core principles:

• Employee Success – investing in our people and their growth
• Customer Success – delivering reliable, high-quality solutions
• Financial Strength – operating with discipline and long-term focus

We believe strong teams, trusted partnerships, and technical excellence drive sustainable success.

Thermo Systems is a global, full-service control systems integration partner delivering premier class automation solutions across the Energy, Life Sciences, and Mission Critical markets.

The Controls Engineer II supports the design, integration, testing, and commissioning of automation and control systems, with an emphasis on front-end engineering for mission-critical facilities, including hyperscale and enterprise data centers.

This role combines office-based controls design, industrial networking, HMI/SCADA development, instrumentation, and technical documentation with field support during testing, commissioning, and system deployment. The engineer works under the guidance of project leads while taking ownership of assigned engineering tasks and continuing to develop technical and project leadership capabilities.

• Support the design and implementation of PLC, HMI/SCADA, instrumentation, and industrial control systems.
• Develop control system layouts, industrial network designs, hardware specifications, and engineering documentation.
• Program, configure, test, and troubleshoot Rockwell/Allen-Bradley PLCs using Studio 5000 / Logix Designer.
• Develop and support HMI/SCADA applications and graphics, with Ignition experience preferred.
• Interpret P&IDs, electrical and mechanical schematics, instrumentation data sheets, and control system documentation.
• Support instrumentation selection, I/O mapping, and integration of field devices with PLC logic.
• Develop customer-facing technical documentation, including control narratives, Sequences of Operations, system reports, and related project deliverables.
• Support FAT, startup, commissioning, hardware validation, network verification, and system testing.
• Provide field support during critical project phases and troubleshoot controls, networking, instrumentation, and integration issues.
• Communicate project status, technical issues, risks, and scope concerns to project leads and customers while maintaining strong working relationships.
• Follow customer site requirements, Thermo Systems QMS processes, and established standards for safety, quality, documentation, and system configuration.

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Computer Science, or a related technical discipline.
• Typically 2+ years of experience in controls engineering, industrial automation, system integration, or a related technical field.
• Experience with control system design, programming, integration, testing, or commissioning.
• Mission-critical or data center experience preferred.
• Experience with system integration, field service, or controls troubleshooting is a plus.

• Working proficiency with Rockwell/Allen-Bradley PLCs and Studio 5000 / Logix Designer,…