Controls Engineer

Controls Engineer

Stack Infrastructure (Stack) provides digital infrastructure to scale the world's most innovative companies. We are an award-winning industry leader in building, owning, and operating highly efficient, cost-effective wholesale, colocation, and cloud data centers. Each of our national facilities meets or exceeds the highest industry standards in all operational categories of availability, security, connectivity, and physical resilience.

Stack offers the scale and geographic reach that rapidly growing hyperscale and enterprise companies need. The world runs on data. Data runs on Stack.

Stack is seeking a Controls Engineer to join our Technical Operations team and play a pivotal role in supporting the construction, operation, and maintenance of BMS and EPMS systems at our new data center facilities in New Mexico. The Controls Engineer will work directly with site operations, engineering, construction, commissioning teams, vendors, and internal technical stakeholders to ensure reliable, scalable, and secure controls performance across a large, mission-critical campus.

• Develop a comprehensive understanding of mechanical, electrical, controls, and monitoring architectures, including chilled water plant controls, plant operation, electrical distribution monitoring, and campus-level system integration.
• Support the implementation, commissioning, operation, and optimization of PLC-based controls systems across mission-critical mechanical and electrical infrastructure.
• Maintain and troubleshoot Ignition front-end systems, including screens, tags, alarms, historian functions, user interfaces, integrations, and reporting.
• Support MQTT-based data movement and system integration and related edge or enterprise messaging infrastructure.
• Work with databases supporting controls, monitoring, alarming, reporting, analytics, and operational data workflows.
• Partner with site operations teams to troubleshoot controls-related events, perform root cause analysis, and support corrective actions for building automation, PLC, SCADA, and EPMS-related systems.
• Support integration and validation of power quality meters, including devices configured for continuous waveform monitoring, event capture, power quality analysis, and electrical system diagnostics.
• Collaborate with commissioning agents, contractors, vendors, and internal engineering teams to verify system performance, sequence execution, alarm behavior, trend collection, data integrity, and turnover documentation.
• Support site operations by reviewing control logic, plant staging, pumping sequences, valve control, temperature control, differential pressure strategies, and system performance.
• Assist with operational readiness, site acceptance testing, integrated systems testing, and turnover of controls and monitoring systems from construction to operations.
• Ensure proper metering, trending, and data collection to support operational reporting, energy efficiency, reliability tracking, and long-term optimization.
• Partner with IT, cybersecurity, network, and monitoring teams to support secure and reliable connectivity for OT systems, PLCs, SCADA servers, MQTT brokers, databases, and field devices.
• Provide technical support and training to site personnel on controls system functionality, alarm response, data interpretation, and troubleshooting procedures.
• Support standards development and continuous improvement efforts for controls architecture, PLC programming practices, Ignition development, data modeling, alarm management, and documentation.

• Location:
  
  Santa Teresa, New Mexico;
  On-site
• Compensation: $160,000 - $195,000 annually with 10% bonus potential
• Benefits:
  Healthcare, Dental, Vision, Life Insurance, Paid Time Off, Paid Leave Programs
• Travel:
  Up to 15% domestically
• Must be eligible to work in the United States
• Must pass comprehensive background screening

• Bachelor's degree in Engineering, Controls, Computer Science, or equivalent practical experience.
• 5+ years of experience with building automation, industrial controls, SCADA, PLCs, EPMS, or mission-critical facility control systems.
• Hands-on experience with Allen-Bradley PLCs, including PLC logic review, troubleshooting, field validation, and integration with supervisory systems.
• Experience with Ignition SCADA, including tag structures, alarm configuration, graphics, historian functions, scripting, reporting, and system integration.
• Strong understanding of mechanical systems, especially chilled water systems, chiller plants, pumping systems, heat rejection, and hydronic loops.
• Familiarity with electrical monitoring systems, power quality meters, and EPMS concepts in mission-critical environments.
• Experience with industrial communication protocols and integration methods, including some combination of Ether Net/IP, Modbus TCP, BACnet, SNMP, MQTT, and OPC UA.
• Ability to troubleshoot complex controls issues involving PLCs, SCADA, network connectivity, field devices, sensors, actuators,…