OT Systems Integration Engineer (BAS/HVAC Focus)

What You'll Bring

• 5+ years in HVAC controls engineering or building automation systems integration.
• Programming experience with industrial protocols. Hands-on experience designing programs that integrate via BACnet/IP, BACnet MS/TP, Modbus TCP, Modbus RTU, OPC-UA, or LON (read and write configuration).
• Automation logic programming. Experience designing, developing, and modifying automation logic programs in BAS platforms: Johnson Controls Metasys, Siemens Desigo CC, Schneider EcoStruxure, Honeywell, or equivalent.
• Knowledge of ASHRAE A2 thermal environment specifications for data centers or critical facilities.
• Field commissioning experience — must be comfortable on-site at live operating facilities.
• Ability to interpret HVAC drawings, sequence of operations, and control panel documentation.
• Edge gateway programming. Familiarity with edge gateway concepts; AWS IoT Greengrass v2 component program experience preferred (willingness to adopt is acceptable).

Bonus Experience

• Experience with co-location, telecom headend, or hyperscaler datacenter facility environments.
• Familiarity with AWS IoT SiteWise Edge or equivalent industrial cloud gateway programs.
• Experience designing programs for AI/ML-driven automation platforms or predictive control systems.
• Familiarity with Eaton Foreseer or vendor-specific monitoring platforms in the Comcast footprint.
• Python programming for automation logic test programs or API integration programs.
• Knowledge of NIST SP 800-82 (Operational Technology security) or Purdue Model network segmentation.
• Certified Control Systems Technician (CCST) or equivalent credential.
• Experience with containment systems: hot-aisle/cold-aisle containment, in-row cooling.

What You'll Do

• Automation logic program design and development. Apply systems analysis techniques to determine functional specifications; design, develop, document, test, and modify stage-up and stage-down automation logic programs based on ASHRAE A2 thermal thresholds and electrical load signals.
• Integration program development. Design and modify integration programs connecting the automation control logic with existing HVAC controller interfaces using BACnet/IP (primary), BACnet MS/TP (legacy serial), Modbus TCP/RTU, OPC-UA (preferred for newer systems), or vendor-specific APIs from Eaton, Siemens, Liebert, and Foreseer.
• Edge component program deployment. Design, develop, document, deploy, and modify AWS IoT Greengrass v2 component programs at site for protocol translation and local buffering during connectivity loss.
• SiteWise Edge gateway configuration program. Design and modify AWS IoT SiteWise Edge gateway configuration programs to consume facility telemetry via BACnet, Modbus, and OPC-UA connectors.
• Safety interlock program implementation. Design, develop, test, and modify safety interlock programs: manual override capability, minimum cycle time enforcement, alert escalation, override audit trail.
• POC execution and program validation. Execute the HVAC Automation POC at the two Downingtown pilot sites in Recommend Mode with the Comcast facilities team supervising every recommendation; analyze program output and modify automation programs based on operator feedback.
• POC results analysis and documentation. Document POC results: response latency, setpoint accuracy, false-positive rate, operator feedback, PUE and EPCB outcome metrics against pre-POC baseline.
• Automation sequence validation. Validate automation sequence programs against Comcast-approved operating parameters; coordinate vendor support engagements (Eaton, Siemens, Liebert) where controller access requires vendor configuration.
• Test program collaboration. Support the QA/Integration Analyst during test execution; analyze test results and design corrective program modifications.
• Specification documentation. Produce automation logic program specifications, control flow diagrams, and commission documentation.