This is a remote position. Are you a seasoned automation engineer ready to take charge of critical infrastructure? You'll lead end-to-end PLC development for Tier III/IV data centers up to 200MW, driving reliability and speed-to-market. This is your opportunity to own high-impact control systems in one of the most demanding, rewarding engineering environments in the world. Signing Bonus up to $10k and New Hire Milestone Bonus up to $15k Position Title: Senior Automation Software Engineer \u2013 Critical Infrastructure Position Location: Must relocate to or live in Atlanta, GA area Salary We recognize salary ranges from job boards do not necessarily reflect our pay ranges. In many instances we out-compete those ranges for well-qualified candidates. Job Summary The Senior Automation Software Engineer \u2013 Critical Infrastructure owns the complete PLC software life\u2011cycle for hyperscale and colocation data\u2011center campuses ranging from 10\u202FMW to 200\u202FMW+. You will architect, program, and lead level 2/3 commissioning of high\u2011availability PLC solutions that integrate mechanical, electrical, and IT/OT subsystems\u2014ensuring Tier\u202FIII/IV reliability while meeting aggressive speed\u2011to\u2011market schedules. You will serve as the PLC subject\u2011matter expert (and secondary SME on SCADA development and SCADA integration) to ensure seamless hand\u2011offs, tag mapping, and site testing. You will Lead development of PLC logic, modular function blocks, state machines, and fault\u2011tolerant control strategies across multiple projects. You will coordinate closely with field electricians, startup & commissioning technicians, and the SCADA Engineer to validate end\u2011to\u2011end data flow, alarms, and historian points. You will provide on\u2011site SME support during Level\u202F2\u202Fthrough\u202FLevel\u202F5 Integrated Systems Testing (IST), troubleshooting complex field issues under go\u2011live pressure. You will Implement robust code\u2011management, simulation, and cybersecurity practices aligned with ISA/IEC\u202F62443 and owner standards. Essential Functions PLC Software Development and Testing (65%) + Design, program, and debug PLC logic for chilled\u2011water 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 Level\u202F2 & 3 panel checkout and Level\u202F4 functional testing; generate corrective patches during Level\u202F5 IST. Integration and Commissioning Support (20%) + Collaborate with SCADA Engineer to develop tag maps and naming conventions; configure BACnet/IP, Modbus\u202FTCP, OPC\u2011UA, 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\u2011list resolution. Standards and Continuous Improvement (10%) + Maintain and evolve STC global PLC code standards, cybersecurity hardening checklists, and digital\u2011twin 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\u2011transfer workshops for owner operations teams + Manage team issues and KPI dashboards for internal and client reporting and continuous improvement Completion of Assigned Tasks and Deliverables on Time and on Budget Performs Other Related Duties as Assigned Requirements Position Requirements (Advanced level for all the following) + Technical Mastery: 10+\u202Fyrs hands\u2011on programming with Allen\u2011Bradley ControlLogix/CompactLogix + Application experience: Demonstrated HVAC and / or process systems including chilled water plants and temperature, pressure and flow control implementation. + Protocol Fluency: BACnet/IP, Modbus\u202FTCP, OPC\u2011UA, DNP3, SNMP, MQTT, RESTful APIs. + Hyperscale Experience: Documented role on \u226550\u202FMW data\u2011center builds or other 24×7 mission\u2011critical mega\u2011projects (pharma, semiconductor fab, LNG, aerospace, etc.). + Toolchain: Studio\u202F5000 Logix Designer, TIA Portal, Codesys, PLC\u202Fsimulators, Git/GitLab, Jira, Wireshark. + Standards & Codes: Uptime Tier\u202FIII/IV, NFPA\u202F70E, ISA\u202F88/95, ISA/IEC\u202F62443, UL\u202F508A, IEEE\u202F3004. + SCADA Familiarity: Working knowledge of Ignition, FactoryTalk\u202FView, AVEVA or VTScada for tag integration and testing (development performed by separate SCADA resource). + Soft Skills: Clear client\u2011facing communication, rapid decision\u2011making, and calm execution in schedule\u2011compressed environments. + Certifications (preferred): Rockwell Automation \u202FCPIN or CREST, Cisco CCNA\u2011Industrial, NICET\u202FIV (Industrial Instrumentation), or ISA\u202FCAP. + Knowledge of VLANs, LANs, VPNs and RSTP + Knowledge of IoT and smart building solutions + Skilled at using MS Office Suite (Excel, Word, Outlook, PowerPoint, Teams), along with exceptional organizational skills for file management + Skilled in completing assignments accurately and with attention to detail + Ability to work successfully in a remote environment thru effective communication and organizational skills, self-motivation, proactiveness and resourcefulness in a distraction free workspace + Ability to follow company and site safety requirements + Ability to analyze and prepare documents, reports and correspondence + Ability to communicate effectively in both oral and written form (technical and non-technical information) + Ability to communicate effectively directly with clients and at times serve as primary point of client contact + Ability to work successfully as a member of a team and independently with moderate supervision + Ability to work under pressure and meet close deadlines + Ability to plan effectively and delegate the work of others + Ability to achieve certification for NFPA70E and / or OSHA training as / if required + Organizational skills, with the ability to manage multiple tasks simultaneously Physical Demands The following physical demands must be met by the employee to perform the essential functions of this job successfully. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is + Frequently manipulating, moving or grasping small parts, devices or tools + Frequently required to remain in a stationary position + Frequently moving through office, critical facility and other environments (such as low temperatures, high temperatures and outdoor elements such as precipitation and wind), including tight and confined spaces + Frequently descending / ascending stairs and ladders to access equipment + On occasion the employee may be required to position self under or over equipment + On occasion the employee may move equipment weighing up to 50 pounds. Travel / Relocation Requirements + Up to 75%, this may include travel to any or all 50 US states + International travel may be required based on individual skill, training and project needs + Travel is defined as physically leaving home on behalf of business activities including but not limited to client sites, meetings with other employees, meeting for business development purposes, running errands on behalf of the business, attending industry conferences, etc. + Potential relocation opportunities may exist per project needs Education / Experience Requirements + Required: Bachelor's degree in Engineering, Computer Science, or related discipline OR 12+\u202Fyrs progressive PLC programming experience. + Experience: Minimum 8\u202Fyrs direct PLC programming plus 4\u202Fyrs commissioning/IST leadership on mission critical facilities. Benefits • Choice of comprehensive medical plans (including two PPO-style plans and a HDHP w/ HSA option) • Health reimbursement account (HRA), flex spending accounts (FSA) • Dental and vision plans • Comprehensive medical, dental and vision benefits extended to spouse / domestic partner and dependent children up to age 26 • 401k with company match and self-directed brokerage account option • PTO including additional paid time off during the last week of the year • Company paid life insurance coverage for employees and their eligible dependents • Short and long-term disability, AD&D coverage • Professional development opportunities, tuition reimbursement and professional licensing assistance • Paid parental leave after one year of employment We are an EEO/Affirmative Action Employer and participates in the E-Verify program with the Department of Homeland Security. We encourage diversity in our workforce. Are you ready to challenge yourself and redefine standards in the AEC industry? Apply now and join our award-winning team! NOTICE TO THIRD PARTY AGENCIES: We do not accept unsolicited resumes from recruiters, employment agencies, or staffing firms. This includes any resumes or candidate profiles submitted without a signed agreement in place and without a specific request for assistance with a particular role. Any such submissions\u2014including those sent directly to our team members\u2014will be considered property of our company, and we reserve the right to hire the candidate without any obligation for payment or fees.