The Principal I&amp;C Engineer is a senior technical leader responsible for the development, governance, and delivery of industrial automation, control systems, SCADA, EPMS, BMS, PLC/DCS, and OT/IT network solutions for mission-critical data center projects worldwide. The role requires extensive experience in control architectures, industrial networks, instrumentation, energy management, critical infrastructure monitoring, cybersecurity, and high-availability operations. Its primary focus is Industrial Automation, SCADA, EPMS, Control Integration, and Operational Technology rather than conventional building management or physical security systems. The engineer leads the complete system lifecycle, from concept and detailed design through FAT/SAT, commissioning, integrated testing, and operational support.Responsibilities<ul><li>Act as the technical authority for I&amp;C and OT systems on critical data center projects.</li><li>Lead multidisciplinary design teams, consultants, automation specialists, and technology suppliers.</li><li>Establish engineering standards, design methodologies, quality requirements, and reusable control system frameworks.</li><li>Lead design reviews, peer reviews, assurance programs, and major technical decisions.</li><li>Develop and review design criteria, cause-and-effect matrices, I/O lists, control narratives, and sequences of operation.</li><li>Plan FAT, SAT, commissioning, and Integrated Systems Testing activities.</li><li>Manage operational, resilience, safety, and OT cybersecurity risks, including FMEA and failure-recovery strategies.</li><li>Evaluate emerging technologies for SCADA, EPMS, industrial automation, OT systems, and digital infrastructure.</li><li>Define high-availability SCADA, PLC/DCS, EPMS, and BMS architectures, including control hierarchy, segmentation, redundancy, failover, and disaster recovery.</li><li>Lead the integration of BMS, EPMS, DCIM, SCADA, and equipment controllers for UPS, generators, switchgear, chillers, CRAH/CRAC units, VFDs, and other critical systems.</li><li>Develop design bases, schematics, detailed engineering, construction documentation, and system interface requirements.</li><li>Specify PLC/DCS hardware and software, IEC 61131-3 programming standards, HMI, alarms, historian, trends, and reporting requirements.</li><li>Produce and review P&amp;IDs, logic diagrams, single-line diagrams, control loops, network architectures, signal lists, cabling, and technical specifications.</li><li>Select and specify sensors, transmitters, analyzers, meters, actuators, control valves, leak detectors, energy meters, and intelligent field devices.</li><li>Define accuracy, metrological class, reliability, maintainability, calibration, interlocking, functional safety, and electromagnetic compatibility requirements.</li><li>Develop instrument indexes, data sheets, connection drawings, installation details, and instrumentation standards.</li><li>Design control cabinets, cable routing, grounding, lightning protection, and interfaces with fire and security systems.</li><li>Evaluate manufacturers and technologies for suitability in mission-critical environments.</li><li>Design resilient Layer 2/3 OT networks, including ring topologies, VLANs, QoS, redundancy, and NTP/PTP time synchronization.</li><li>Specify and validate protocols such as Modbus TCP/RTU, OPC UA, BACnet/IP, DNP3, IEC 61850, EtherNet/IP, PROFINET, MQTT, and SNMP.</li><li>Define gateways, protocol conversion, data mapping, interoperability, and third-party equipment integration.</li><li>Integrate SCADA, PLC/DCS, EPMS, BMS, DCIM, CMMS, EMS, IED, OEM, and enterprise platforms.</li><li>Apply ISA/IEC 62443 and NIST 800-82 principles, including zones and conduits, hardening, identity management, allowlisting, patching, monitoring, logging, backup, and recovery.</li><li>Develop monitoring and control solutions for electrical distribution, switchgear, generators, ATS, UPS, battery storage, cooling plants, refrigeration, water treatment, fuel systems, mechanical infrastructure, utilities, and environmental systems.</li><li>Design and optimize sequences for generators, UPS, switchgear, PDU/RPP, CRAH/CRAC units, chilled-water systems, economization, cooling towers, and thermal containment.</li><li>Integrate EPMS functions for power quality, harmonics, transients, load management, and energy performance, as well as BMS functions for environmental conditions and efficiency.</li><li>Define alarm philosophies, operating indicators, reports, analytics, predictive monitoring, and operational intelligence.</li><li>Ensure compliance with applicable Tier requirements, electrical and safety codes, redundancy strategies, resilience, and maintainability without operational disruption.</li></ul>

AECOM is the world&rsquo;s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle &ndash; from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $14.4 billion in fiscal year 2023. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Principal Engineer - Security & Controls (Data Centers)

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AECOM

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