Sr. Critical Facilities Engineer - Memphis
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 6 October 2026.
About the role
SpaceXSI's standard text
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.
SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.
SR. CRITICAL FACILITIES ENGINEER
As a Sr. Facilities Operations Technician at SpaceXSI, you'll dive in, operating and maintaining the critical facility systems that power our supercomputing data centers. Working hands-on with MEP systems, you’ll tackle maintenance, operations, and repairs, ensuring peak performance and reliability. Expect to troubleshoot complex issues, streamline processes, and collaborate with teams to keep our infrastructure running smoothly, directly supporting xAI’s mission to accelerate human scientific discovery through AI.
RESPONSIBILITIES:
- Independently operate and maintain critical mechanical, electrical, and plumbing (MEP) systems in supercomputing data centers, ensuring high reliability and performance through hands-on maintenance, troubleshooting, and process optimization
- Perform advanced maintenance and troubleshooting of critical data center systems like HVAC, power, and environmental controls, while mentoring junior technicians to ensure operational reliability
- Oversee the maintenance and optimization of critical data center infrastructure, including power, cooling, and environmental systems, while leading a team of technicians to ensure operational reliability and efficiency
- Responsible for MEP Infrastructure site safety and environmental compliance, ensuring the sites align with all local and regional health and safety requirements
- Provide operational expertise for Mechanical, Electrical, and Plumbing (MEP) systems at the datacenter facility. The systems and equipment can include pumps, piping, chillers, cooling towers, CRAH units, wiring, lighting systems, generators, motors, water supply, UPS and switchgear, etc
- Routinely inspect all areas to ensure performance measures are being maintained and proactively self-report the problems of facilities
- Experience with writing and executing MOPs, SOPs, EOPs
- Perform daily inspections of critical systems
- Identify and maintain spare parts inventory to minimize downtime
- Coordinate and supervise scheduled system shutdowns
- Develop and implement energy monitoring metrics
- Support commissioning efforts by witnessing equipment startup, assisting with functional testing, and monitoring construction progress
BASIC QUALIFICATIONS:
- Bachelor’s degree in mechanical or electrical engineering; OR 6+ years of hands-on operations/facilities work experience in lieu of degree (data center experience preferred)
PREFERRED QUALIFICATIONS:
- Knowledge of mechanical or electrical engineering principles and systems (both would be a huge plus)
- Experience and knowledge of all critical systems documentation including Plans, Procedures, and Operations Manuals
- Experience and knowledge of Building and Electrical Power Monitoring Systems and Operations
- Experience with PLC-based control systems and/or with Building Management Systems (Client)
- Excellent written and verbal communication and technical writing skills in English
- Strong troubleshooting skills
ADDITIONAL REQUIREMENTS:
- Ability to lift up to 50 lbs and 35 lbs unassisted
- Ability to utilize hand tools and power tools as needed
- Work is often performed in tight quarters, and physical dexterity is necessary to perform job functions
- Comfortable working at elevated heights (up to 100 feet) with appropriate safety gear
- Comfortable working in extreme outdoor environments—heat, cold, rain, etc
- Comfortable working in an environment requiring exposure to fumes, odors, and noise
- Available to work flexible shifts providing 24x7 coverage as needed, including evenings, weekends, and holidays
- Position is subject to pre-employment drug and random drug and alcohol testing
- Position is subject to pre-employment and annual post-employment background checks
- Willing to travel as needed (up to 10%)
- Valid driver’s license
SpaceXSI's standard text
SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
What this role asks for
78% of this description is written for the role. The rest is SpaceXSI's standard text, folded away below.
Compared with SpaceXSI's other open jobs.
The team: Data Center HIRES STEADILY
This role is one of 71 open in Data Center. 13 were posted in the last 30 days and the oldest in September: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (15 of 71), Jira (14 of 71), Modbus (14 of 71), AutoCAD (12 of 71), Excel (9 of 71), Linux (9 of 71), Bash (7 of 71)
OTHER ROLES ON THIS TEAM
- Operation & Maintenance Engineer (Power Plant) - Memphis posted Oct 30
- Sr. Mechanical Engineer - Memphis posted Oct 29
- Operations Engineer, Supercompute - Memphis posted Oct 23
- Software Engineer, Observability (Supercompute) - Memphis posted Oct 22
- Manager, Supercomputer Site Reliability Engineering - Memphis posted Oct 16
- Data Center Operations Technician - Memphis posted Oct 15
- Lead Data Center Technician - Memphis posted Oct 15
- Data Center Operations Technician, Linux - Memphis posted Oct 15
- Sr. Data Center Technician, Linux - Memphis posted Oct 15
- Site Reliability Engineer - Memphis posted Oct 15
- Architect, Data Centers & Workplace - Memphis posted Oct 7
- Data Center Fiber Technician posted Oct 5
- Optical Engineer - Memphis posted Oct 2
- Commissioning Engineer, Electrical - Memphis posted Oct 2
- Rack Design Engineer, Data Center - Memphis posted Oct 2
- Project Manager, Facilities Operations - Memphis posted Sep 30
- Electrical Technician, Power Generation - Memphis posted Sep 22
- Electrical Engineer, Power Generation - Memphis posted Sep 21
- Operations Analyst, Power Generation - Memphis posted Sep 21
- Manager, Engineering (Power Generation & Utilities) - Memphis posted Sep 21
- Lead Engineer, Power Generation - Memphis posted Sep 21
- Fluids Engineer, Power Generation - Memphis posted Sep 21
- Controls Engineer, Power Generation - Memphis posted Sep 21
- Controls Engineer, Supercomputer Infrastructure - Memphis posted Sep 3
- OT Systems Engineer, Physical Infrastructure - Memphis posted Sep 2
- OT Network Engineer, Physical Infrastructure - Memphis posted Sep 2
- Supervisor, Electrical Maintenance (Medium Voltage) - Memphis posted Sep 2
- HVAC Supervisor, Chilled Water Systems - Memphis posted Sep 2
- Facilities Engineer, Electrical - Memphis posted Sep 1
- Facilities Engineer, Mechanical (HVAC) - Memphis posted Sep 1
- Facilities Engineer - Memphis posted Sep 1
- Lead Electrical Reliability Engineer, Data Center Infrastructure - Memphis posted Aug 31
- Lead Electrical Engineer, Facilities Engineering - Memphis posted Aug 31
- Network Connectivity Engineer, Fiber Optic Layout - Memphis posted Aug 27
- Sr. Electrical Construction Project Engineer - Memphis posted Aug 21
- Inventory Analyst, Supercomputer Operations - Memphis posted Aug 19
- OSP Engineer - Memphis posted Aug 18
- Civil Engineer, Battery Storage - Memphis posted Aug 18
- Lead Engineer, Transmission & Distribution - Memphis posted Aug 18
- Lead Engineer, Data Center - Memphis posted Aug 18
- Lead Engineer, Battery Storage - Memphis posted Aug 18
- Power System Engineer, Transmission & Distribution - Memphis posted Aug 18
- Protection & Controls Engineer - Memphis posted Aug 18
- Ops/Build Engineer, Transmission & Distribution - Memphis posted Aug 18
- Network Engineer, Battery Storage - Memphis posted Aug 18
- Electrical Design Engineer - Memphis posted Aug 18
- Supervisor, Data Center Facilities - Memphis posted Aug 14
- Sr. Manager, Data Center Facilities - Memphis posted Aug 14
- Manager, Data Center Facilities - Memphis posted Aug 14
- Software Engineer, Data Center - Memphis posted Aug 11
- Mechanical Engineer - Memphis posted Aug 10
- Operations Engineer, Facilities & Physical Infrastructure - Memphis posted Aug 7
- Manager, Data Center Operations - Memphis posted Aug 7
- Supervisor, Data Center Operations - Memphis posted Aug 7
- Fire Protection Engineer - Memphis posted Aug 3
- Electrical Reliability Engineer, Data Center Infrastructure - Memphis posted Jul 16
- Power Systems Engineer, Data Center Infrastructure - Memphis posted Jul 16
- Reliability Engineer, Data Center Infrastructure - Memphis posted Jul 10
- Facilities Infrastructure Engineer, Data Center Infrastructure - Memphis posted Jul 8
- Electrical Engineer, Data Center Infrastructure - Memphis posted Jul 8
- Mechanical Engineer, Data Center Infrastructure - Memphis posted Jul 8
- Operations Engineer, Construction & Site Efficiency posted Jun 8
- Civil Engineer - Memphis posted May 20
- Electrical Engineer - Memphis posted May 12
- Electrical Commissioning Technician - Memphis posted May 11
- Sr. Electrical Commissioning Technician - Memphis posted May 4
- Data Center Operations Technician posted Mar 20
- Sr. Operations Technician, Data Center - Memphis posted Feb 18
- Structural Engineer, Data Center - Memphis posted Dec 29
- Power Generation Engineer - Memphis posted Sep 10
From the team and dates on SpaceXSI's own job board.
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