# Protection & Controls Engineer **Company**: SpaceXAI **Location**: Memphis, Tennessee **Work arrangement**: onsite **Experience**: senior **Job type**: full-time **Category**: Engineering **Industry**: Technology **Apply**: https://job-boards.greenhouse.io/xai/jobs/5214280007?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply **Canonical**: https://yubhub.co/jobs/job_c810c775-335 ## Description Join the High Power Engineering team at SpaceXAI to design, set, commission, and maintain protection and control systems for large electrical infrastructure. As a Protection & Controls Engineer, you will own schemes and settings from the transmission interconnection through distribution, on-site generation, and battery energy storage, down to medium- and low-voltage buses serving data halls and other mission-critical loads. The position is based in Memphis, TN, with potential travel to other sites. ## Responsibilities: - Develop protection philosophy, one-line and three-line diagrams, DC control schematics, wiring diagrams, and relay panel layouts for the electrical system from the utility interconnection to facility buses. - Calculate, implement, and maintain protective relay settings and logic for transmission lines, buses, power transformers, distribution feeders, generators, and battery energy storage / inverter-based resources. - Specify relays, current and voltage transformers, trip circuits, lockout schemes, breaker-failure protection, and communications-assisted schemes (permissive, blocking, transfer trip). - Perform short-circuit, protective-device coordination, and arc-flash studies; keep settings aligned with the study of record as the system changes. - Commission protection systems: functional checks, primary and secondary injection, end-to-end scheme tests, and in-service timing checks. Use industry test sets (e.g. Doble, Omicron). - Collect and analyse fault and disturbance records (COMTRADE and equivalent); recommend setting or scheme changes after events, misoperations, or staged tests. - Maintain the settings management database, as-left files, and firmware/config control for in-service relays. - Integrate protection with SCADA, RTUs, and plant/facility monitoring: DNP3, Modbus, IEC 61850 (including GOOSE), and IEEE C37.118 synchrophasors as applicable. - Support NERC PRC evidence and testing where the interconnection or generation/storage fleet requires it (e.g. PRC-005, PRC-019, PRC-024, PRC-027). - Work with field technicians, operators, and contractors during outages, switching, and troubleshooting. Stay hands-on at the panel. - Apply IEEE C37 (including line, transformer, bus, and generator protection), NESC, NFPA 70 / 70E, IEEE 1547, and IEEE 2800 as they apply to the assets in scope. ## Basic Qualifications: - Bachelor's degree in electrical engineering, computer engineering, or another engineering discipline. - 3+ years of protection and controls experience (settings, design, or commissioning) on medium- or high-voltage systems. ## Preferred Skills and Experience: - 5+ years in a protection and controls role at a utility, independent power producer, EPC, relay manufacturer (e.g. SEL), or hyperscale / colocation data centre operator. - Hands-on experience with Schweitzer Engineering Laboratories (SEL) relays and software (AcSELerator QuickSet, synchroWAVe Event, or equivalent). GE, ABB, Siemens, or Beckwith experience also valued. - SELogic or equivalent relay logic; settings templates; a formal settings management process. - Short-circuit and coordination studies in ETAP, ASPEN OneLiner, CAPE, SKM, or EasyPower. - Transmission and distribution protection (line, bus, transformer, feeder) plus at least one of: generator protection, BESS/inverter-based resource protection, or mission-critical facility / data hall medium-voltage protection. - Commissioning with Doble F6150, Omicron CMC, or equivalent; event-record analysis after faults. - Familiarity with DNP3, Modbus, IEC 61850, IEEE C37.118, IEEE C37.111, and IEEE C37.232. - Working knowledge of IEEE C37.102 (generator), C37.91 (transformer), C37.234 (bus), IEEE 1547 / 2800 (interconnection and inverter-based resources), and applicable NERC PRC standards. - Professional Engineering license, or actively working toward one. - Ability to support technicians in the field and to remain effective during outages and event investigations. ## Additional Requirements: - Perform hands-on work in all environments (heat, cold, rain), in tight quarters or at heights. - Work extended hours and weekends as needed to support construction, energisation, and operations. - Remain focused in hazardous environments while wearing appropriate PPE. - Lift up to 25 lbs. unassisted. - Provide 24/7 on-call support for emergencies. - Willing to work on-site in Memphis, TN. This is not a remote or hybrid role. - Travel up to 25% for factory witness testing, vendor and OEM engagement, and supporting other sites. - Valid driver's license. ## Skills ### Required - electrical engineering - computer engineering - protection and controls experience - IEEE C37 - NESC - NFPA 70 / 70E - IEEE 1547 - IEEE 2800 ### Nice to have - Schweitzer Engineering Laboratories (SEL) relays and software - GE relays and software - ABB relays and software - Siemens relays and software - Beckwith relays and software - ETAP - ASPEN OneLiner - CAPE - SKM - EasyPower - Doble F6150 - Omicron CMC - DNP3 - Modbus - IEC 61850 - IEEE C37.118 --- Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/xai/jobs/5214280007?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)