DLB Associates
Senior Automation Software PLC Engineer - Critical Infrastructure
DLB Associates, Atlanta, Georgia, United States, 30383
Overview
Senior Automation Software PLC Engineer – Critical Infrastructure role based in Atlanta, GA. You will architect high-availability PLC systems, lead Level 2–5 commissioning, and contribute to advanced building automation across hyperscale and colocation data center campuses (10MW to 200MW+). This is a hands-on, high-impact engineering position requiring precision, speed, and resilience under live conditions. Position Title: Senior Automation Software PLC Engineer – Critical Infrastructure Position Location: Must relocate to or live in the Atlanta, GA area Note: This role may require relocation and travel as part of project activities. Essential Functions
PLC Software Development and Testing (65%)
Design, program, and debug PLC logic for chilled-water plants, HVAC, CRAH/CRACs, fan wall systems, and liquid cooling solutions Build reusable library objects and automated test harnesses; perform Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) Execute Level2 & 3 panel checkout and Level4 functional testing; generate corrective patches during Level5 IST
Integration and Commissioning Support (20%)
Collaborate with SCADA Engineer to develop tag maps and naming conventions; configure BACnet/IP, ModbusTCP, OPC-UA, and SNMP interfaces Support OT network validation (VLAN segmentation, redundant rings) and coordinate with owner IT for secure connectivity Guide field & commissioning technicians on sequencing, test scripts, and punch-list resolution
Standards and Continuous Improvement (10%)
Maintain and evolve STC global PLC code standards, cybersecurity hardening checklists, and simulation workflows Evaluate emerging PLC platforms and developer toolchains to improve build velocity and quality
Mentorship and Reporting (5%)
Mentor junior programmers and apprentices; deliver knowledge-transfer workshops for owner operations teams Manage team issues and KPI dashboards for internal and client reporting and continuous improvement
Requirements
Position Requirements (Advanced)
Technical Mastery: 10+ years hands-on programming with Allen-Bradley ControlLogix/CompactLogix Application experience: HVAC and/or process systems including chilled-water plants and temperature, pressure, and flow control Protocol Fluency: BACnet/IP, ModbusRTU, Modbus TCP, OPC-UA, SNMP, MQTT, RESTful APIs Hyperscale Experience: Role on ≥50MW data-center builds or other 24×7 mission-critical mega-projects Standards & Codes: Uptime TierIII/IV, NFPA70E, ISA88/95, ISA/IEC62443, UL508A, IEEE3004 SCADA Familiarity: Ignition, FactoryTalkView, AVEVA or VTScada for tag integration and testing Knowledge of VLANs, LANs, VPNs and RSTP; IoT and smart building solutions Toolchains: Studio5000 Logix Designer, TIA Portal, Codesys, PLCsimulators, Git/GitLab, Jira, Wireshark Communication and decision-making: client-facing, fast, calm execution in schedule-constrained environments Office proficiency and organizational skills Ability to leverage AI and emerging technologies to streamline workflows Remote work capability with strong communication and self-motivation Safety: ability to follow company and site safety requirements Documentation: ability to analyze and prepare documents, reports, and correspondence; plan and delegate work Certifications: NFPA70E and/or OSHA training as required
Education / Experience
Bachelor’s degree in Engineering, Computer Science, Mechatronics, or related field OR Two years of additional related experience in lieu of degree 13+ years direct PLC programming experience with at least 4 years commissioning/IST leadership on mission-critical facilities; 10+ years hands-on programming with Allen-Bradley
Travel / Relocation
Up to 10% travel; must relocate to or be in Atlanta, GA REAL ID requirement for travel; travel may involve car or plane Physical Demands
Frequent manipulation of small parts; stationary work; varied environments including confined spaces Occasional movement of equipment weighing up to 50 pounds Benefits
Comprehensive medical plans, dental and vision; dependents covered 401k with company match; tuition reimbursement and professional licensing assistance PTO and paid parental leave; life insurance; short/long-term disability Professional development opportunities EEO/Affirmative Action Employer; E-Verify participation. Diversity encouraged. Notice to agencies: STC does not accept unsolicited resumes from recruiters or staffing services unless a signed Service Agreement exists. Unsolicited resumes will be the property of STC.
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Senior Automation Software PLC Engineer – Critical Infrastructure role based in Atlanta, GA. You will architect high-availability PLC systems, lead Level 2–5 commissioning, and contribute to advanced building automation across hyperscale and colocation data center campuses (10MW to 200MW+). This is a hands-on, high-impact engineering position requiring precision, speed, and resilience under live conditions. Position Title: Senior Automation Software PLC Engineer – Critical Infrastructure Position Location: Must relocate to or live in the Atlanta, GA area Note: This role may require relocation and travel as part of project activities. Essential Functions
PLC Software Development and Testing (65%)
Design, program, and debug PLC logic for chilled-water plants, HVAC, CRAH/CRACs, fan wall systems, and liquid cooling solutions Build reusable library objects and automated test harnesses; perform Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) Execute Level2 & 3 panel checkout and Level4 functional testing; generate corrective patches during Level5 IST
Integration and Commissioning Support (20%)
Collaborate with SCADA Engineer to develop tag maps and naming conventions; configure BACnet/IP, ModbusTCP, OPC-UA, and SNMP interfaces Support OT network validation (VLAN segmentation, redundant rings) and coordinate with owner IT for secure connectivity Guide field & commissioning technicians on sequencing, test scripts, and punch-list resolution
Standards and Continuous Improvement (10%)
Maintain and evolve STC global PLC code standards, cybersecurity hardening checklists, and simulation workflows Evaluate emerging PLC platforms and developer toolchains to improve build velocity and quality
Mentorship and Reporting (5%)
Mentor junior programmers and apprentices; deliver knowledge-transfer workshops for owner operations teams Manage team issues and KPI dashboards for internal and client reporting and continuous improvement
Requirements
Position Requirements (Advanced)
Technical Mastery: 10+ years hands-on programming with Allen-Bradley ControlLogix/CompactLogix Application experience: HVAC and/or process systems including chilled-water plants and temperature, pressure, and flow control Protocol Fluency: BACnet/IP, ModbusRTU, Modbus TCP, OPC-UA, SNMP, MQTT, RESTful APIs Hyperscale Experience: Role on ≥50MW data-center builds or other 24×7 mission-critical mega-projects Standards & Codes: Uptime TierIII/IV, NFPA70E, ISA88/95, ISA/IEC62443, UL508A, IEEE3004 SCADA Familiarity: Ignition, FactoryTalkView, AVEVA or VTScada for tag integration and testing Knowledge of VLANs, LANs, VPNs and RSTP; IoT and smart building solutions Toolchains: Studio5000 Logix Designer, TIA Portal, Codesys, PLCsimulators, Git/GitLab, Jira, Wireshark Communication and decision-making: client-facing, fast, calm execution in schedule-constrained environments Office proficiency and organizational skills Ability to leverage AI and emerging technologies to streamline workflows Remote work capability with strong communication and self-motivation Safety: ability to follow company and site safety requirements Documentation: ability to analyze and prepare documents, reports, and correspondence; plan and delegate work Certifications: NFPA70E and/or OSHA training as required
Education / Experience
Bachelor’s degree in Engineering, Computer Science, Mechatronics, or related field OR Two years of additional related experience in lieu of degree 13+ years direct PLC programming experience with at least 4 years commissioning/IST leadership on mission-critical facilities; 10+ years hands-on programming with Allen-Bradley
Travel / Relocation
Up to 10% travel; must relocate to or be in Atlanta, GA REAL ID requirement for travel; travel may involve car or plane Physical Demands
Frequent manipulation of small parts; stationary work; varied environments including confined spaces Occasional movement of equipment weighing up to 50 pounds Benefits
Comprehensive medical plans, dental and vision; dependents covered 401k with company match; tuition reimbursement and professional licensing assistance PTO and paid parental leave; life insurance; short/long-term disability Professional development opportunities EEO/Affirmative Action Employer; E-Verify participation. Diversity encouraged. Notice to agencies: STC does not accept unsolicited resumes from recruiters or staffing services unless a signed Service Agreement exists. Unsolicited resumes will be the property of STC.
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