Senior Controls Engineer - OT SCADA Projects

Responsibilities

• Lead end-to-end controls design for utility-scale solar, BESS, and hybrid projects - from initiation through commissioning and closeout
• Program and commission SEL controllers using AcSELerator; develop control logic in Codesys using IEC 61131-3 structured text
• Identify project-specific deviations from standard product scope during contracting, forecast and scope project-specific development work
• Implement and validate closed-loop Active Power and Reactive Power, AVR and PFR Algorithms
• Maintain version control for all code artifacts according to established version control procedure
• Troubleshoot complex SCADA and controls issues using Wireshark, breakpoints, cross-reference, and watch list tools
• Produce project deliverables: System Architecture Diagrams, Control Narratives, Logic Diagrams, commissioning documents, and operator manuals

Requirements

• Bachelor's degree in Engineering, Computer Science, Technology, or related field
• 3-5+ years of IEC 61131-3/PLC programming experience, preferably in Codesys or AcSELerator environment
• 3+ years of utility-scale power plant controls experience (solar, BESS, or hybrid)
• Expert IEC 61131-3 programming; primary tooling is AcSELerator (SEL controllers) and Codesys, including Diagram Builder, traces, breakpoints, and watch lists
• Extensive knowledge of industrial protocols: Modbus-TCP, DNP3, OPC-UA, etc.
• Expert knowledge of grid functionality: PFR, AVR, Reactive Power, Voltage Regulation, and Capacitor Banks - including the underlying grid rationale, not just controller behavior
• Experience with Power Plant Controller (PPC) design, configuration, and commissioning
• Familiarity with PSCAD, PSSE, and/or TSAT modeling processes for utility-scale sites