Remote OT Systems Integration Engineer — BAS & HVAC Automation

The Select Group; Exton (PA); Hybrid; USD 120,000 - 150,000; Full time

Job summary

The Select Group is seeking an OT Systems Integration Engineer to design and implement VBAS automation logic at mission critical facilities. You will build stage-up/down sequences triggered by thermal and electrical thresholds, and integrate with HVAC controllers from Eaton, Siemens, Liebert (Vertiv), and others.

Remote role with occasional onsite work in Downingtown, PA. Required: 5+ years in HVAC controls or building automation, hands-on experience with BACnet, Modbus, OPC-UA, and BAS

Qualifications

• 5+ years in HVAC controls engineering or building automation systems integration.
• Programming experience with industrial protocols and automation logic design for BAS platforms.
• Experience with BACnet/IP, BACnet MS/TP, Modbus TCP/RTU, OPC-UA or LON.
• Knowledge of ASHRAE A2 thermal environment specs for data centers or critical facilities.
• Field commissioning on live facilities and on-site interpretation of drawings and control docs.
• Familiarity with edge gateway concepts and AWS IoT Greengrass/SiteWise for industrial apps.

Responsibilities

• Design and develop automation logic programs based on ASHRAE A2 thresholds and load signals.
• Create integration programs connecting control logic to HVAC interfaces using BACnet/IP, Modbus, OPC-UA or vendor APIs.
• Deploy AWS IoT Greengrass v2 components for protocol translation and local buffering.
• Configure AWS IoT SiteWise Edge gateway programs to collect facility telemetry.
• Develop safety interlock, override, and alert escalation features.
• Support POC execution at pilot sites with vendor teams and document outputs.
• Coordinate with Eaton, Siemens, Liebert and Foreseer for system access and validation.
• Produce specifications, diagrams and commissioning documentation.

Skills

HVAC controls

Industrial protocols

Automation logic

BAS platforms

ASHRAE A2

Field commissioning

Edge gateway

Python scripting

Vendor API integration

Tools

Metasys

Desigo CC

EcoStruxure

Foreseer

AWS IoT Greengrass

AWS IoT SiteWise

Job description

The Select Group is seeking an OT Systems Integration Engineer to design and implement VBAS automation logic at mission critical facilities. You will build stage-up/down sequences triggered by thermal and electrical thresholds, and integrate with HVAC controllers from Eaton, Siemens, Liebert (Vertiv), and others.

Remote role with occasional onsite work in Downingtown, PA. Required: 5+ years in HVAC controls or building automation, hands-on experience with BACnet, Modbus, OPC-UA, and BAS