Senior Automation Software Engineer – Critical Infrastructure

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November 25

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Smart Tech Contracting, LLC

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B2B • Enterprise • Energy

Smart Tech Contracting, LLC is a master systems integrator and turnkey technology contractor specializing in building automation systems (BAS), DDC, PLC, SCADA, and EPMS solutions for mission-critical facilities. The company provides systems design, graphical standards, central plant optimization, enterprise energy and operational monitoring, and software services (APIs, analytics, digital twins) alongside national construction, installation, and 24/7 service and maintenance support for hyperscale and colocation data centers, telecom, and other critical infrastructure clients.

11 - 50 employees

Founded 2025

🤝 B2B

🏢 Enterprise

⚡ Energy

📋 Description

• Own the complete PLC software life‑cycle for hyperscale and colocation data‑center campuses ranging from 10 MW to 200 MW+. • Architect, program, and lead level 2/3 commissioning of high‑availability PLC solutions. • Ensure Tier III/IV reliability while meeting aggressive speed‑to‑market schedules. • Serve as the PLC subject‑matter expert for seamless hand‑offs, tag mapping, and site testing. • Lead development of PLC logic, modular function blocks, state machines, and fault‑tolerant control strategies across multiple projects. • Coordinate closely with field electricians, startup & commissioning technicians, and the SCADA Engineer. • Provide on‑site SME support during Level 2 through Level 5 Integrated Systems Testing (IST). • Implement robust code‑management, simulation, and cybersecurity practices aligned with ISA/IEC 62443 and owner standards. • Self-direct on day-to-day work and receive high level instruction on new projects. • Execute and lead teams and projects, tasks or assignments of complex scope.

🎯 Requirements

• Technical Mastery: 10+ yrs hands‑on programming with Allen‑Bradley 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 TCP, OPC‑UA, DNP3, SNMP, MQTT, RESTful APIs. • Hyperscale Experience: Documented role on ≥50 MW data‑center builds or other 24×7 mission‑critical mega‑projects (pharma, semiconductor fab, LNG, aerospace, etc.). • Toolchain: Studio 5000 Logix Designer, TIA Portal, Codesys, PLC simulators, Git/GitLab, Jira, Wireshark. • Standards & Codes: Uptime Tier III/IV, NFPA 70E, ISA 88/95, ISA/IEC 62443, UL 508A, IEEE 3004. • SCADA Familiarity: Working knowledge of Ignition, FactoryTalk View, AVEVA or VTScada for tag integration and testing (development performed by separate SCADA resource). • Soft Skills: Clear client‑facing communication, rapid decision‑making, and calm execution in schedule‑compressed environments. • Certifications (preferred): Rockwell Automation CPIN or CREST, Cisco CCNA‑Industrial, NICET IV (Industrial Instrumentation), or ISA CAP. • 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 leverage AI and emerging technologies to streamline workflows, optimize operational processes, and contribute to company-wide innovation • 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 effectively plan 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

🏖️ Benefits

• Choice of comprehensive medical plans (including two PPO-style plans and a HDHP w/ HSA option) • 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