Protection Relay Engineer

About xAI

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

About the Role

xAI is seeking an experienced Protection Relay Engineer/Specialist to join our Memphis team. This role will focus on the design, configuration, commissioning, and support of SEL-based protection and automation systems for high-reliability power infrastructure supporting our AI compute facilities.

Responsibilities

• Perform detailed configuration and programming of SEL protective relays (e.g., SEL-751, SEL-787, SEL-700G, etc.) using acSELerator QuickSet and SEL Grid Configurator.
• Develop and implement custom automation logic in SEL RTAC platforms using acSELerator Architect, IEC 61131-3 languages (Structured Text, Ladder Logic), and SEL Logic Engine.
• Design and test SCADA communication protocols including DNP3, Modbus, IEC 61850 GOOSE/MMS, and SEL protocols over Ethernet and serial interfaces.
• Conduct factory acceptance testing (FAT), site acceptance testing (SAT), relay setting validation, and end-to-end functional verification.
• Generate comprehensive documentation: one-line diagrams, logic diagrams, setting files, HMI screens, and commissioning reports.
• Provide technical support during system energization, troubleshooting, and post-commissioning maintenance.
• Collaborate with project managers, SCADA engineers, and field crews to ensure seamless integration and schedule compliance.
• Remain current with SEL firmware updates, NERC CIP cybersecurity requirements, and industry best practices.

Required Qualifications

• Advanced proficiency in acSELerator QuickSet, Architect, and RTAC Web Interface.
• Demonstrated ability to develop complex automation sequences, synchrophasor applications, and remedial action schemes.
• Expertise in relay event analysis using SEL SynchroWAVE and Event Reporter.
• Familiarity with IEC 61850 configuration via SCL files (SCD, ICD, CID).
• SEL Authorized Training (e.g., SEL-5030, SEL-5033) preferred; PE license a plus but not required.

xAI is an equal opportunity employer.

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