Senior Controls Engineer – OT SCADA Projects

This is a fully remote position, open to applicants in California.

📋 Description

• Oversee the complete design of controls for utility-scale solar, battery energy storage systems (BESS), and hybrid projects.

• Analyze project scopes to pinpoint specific requirements and any deviations from Terabase’s standard controls offerings.

• Program and commission SEL controllers utilizing AcSELerator.

• Create Codesys control logic following IEC 61131-3 structured text and continuous function charts.

• Document requirements, develop logic, conduct tests in simulated or lab settings, and record test results.

• Execute and validate closed-loop Active Power, Reactive Power, Automatic Voltage Regulation (AVR), and Primary Frequency Response (PFR) algorithms.

• Manage code artifacts in Bitbucket in compliance with version-control protocols.

• Diagnose complex SCADA and controls issues using Wireshark, breakpoints, cross-reference, and watch-list tools.

• Generate system architecture diagrams, control narratives, logic diagrams, commissioning documents, and operator manuals.

• Collaborate with Product Engineering on product feature development and resolving bugs.

• Evaluate documentation prepared by junior controls engineers.

• Lead Continuous Improvement initiatives and Lessons Learned sessions, integrating field feedback into product standards and templates.

• Mentor junior engineers in preparation for Factory Acceptance Tests (FAT) and customer presentations.

• Act as the primary technical contact for EPCs, asset owners, and grid operators regarding controls.

• Conduct FATs and relay technical information to audiences without technical backgrounds.

• Identify technical risks and scheduling pressures for project management, along with suggested solutions.

• Maintain daily Jira tickets and uphold Jira best practices.

• Willingness to travel up to 10% for on-site commissioning, FAT, and customer interactions.

⛳️ Requirements

• Bachelor’s degree or higher in Engineering, Control Systems, Computer Science, or a related discipline.

• More than 5 years of experience in IEC 61131-3/PLC programming, ideally within the Codesys or AcSELerator environments.

• At least 3 years of experience in controls for utility-scale renewable power plants (solar, BESS, or hybrid), including project-specific development, Factory Acceptance Testing (FAT), commissioning, and Site Acceptance Testing (SAT).

• Proficient in IEC 61131-3 programming using AcSELerator and Codesys, including Diagram Builder, traces, breakpoints, and watch lists.

• Comprehensive understanding of Modbus-TCP, DNP3, OPC-UA, C37.118, and other relevant industrial protocols.

• In-depth knowledge of PFR, AVR, and closed-loop control for Active/Reactive power, as well as capacitor bank functionality.

• Familiarity with Utility/ISO testing and interconnection standards, including ERCOT, PJM, BPA, IEEE 2800, and NERC.

• Experience with the design, configuration, and commissioning of Power Plant Controllers (PPC).

• Knowledge of PSCAD, PSSE, and/or TSAT modeling processes.

• Experience with hardware-in-the-loop systems such as RTDS, OPAL-RT, Speedgoat, or Typhoon.

🏝️ Benefits

• Generous time off and holiday policy.

• Flexibility for remote work.

• Flexible time-off policies.

• Comprehensive benefits package.

• Opportunities for career advancement.

• 401k matching program.

• Stock options available.

• Home office setup allowance.

• Commitment to equal opportunity and an inclusive work environment.