xAI

Sr. Mechanical Engineer - Memphis

Posted 5 Hours Ago

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2 Locations

In-Office

Senior level

Information Technology

The Role

Designs, analyzes, tests, and activates fluid and HVAC systems for advanced data centers. Owns thermal management components including chillers, pumps, heat exchangers, valves, and cooling systems. Performs CAD modeling, fluid analyses, multidisciplinary design coordination, equipment selection, procurement support, and manufacturability reviews. Collaborates with construction, procurement, manufacturing, architects, and other engineering teams to deliver reliable systems within schedule, cost, and performance requirements.

Summary Generated by Built In

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. MECHANICAL ENGINEER

As a member of the data center engineering team you will design, build, and activate some of the world’s most technically advanced data center facilities. You will be the subject matter expert on thermal management, pumping, flow control, HVAC, and other critical fluid systems. You will have the opportunity to apply your knowledge, experience, and creativity to develop novel solutions at the cutting edge of data center and compute technology. This role involves design, analysis, testing, and manufacturing of data center systems and support elements. You will work with other engineering disciplines, construction managers, architects and internal customers to both identify needs and accomplish goals. The position is based in Memphis, TN.

RESPONSIBILITIES:

Responsible for owning and being the subject matter expert on fluid/HVAC components across data center builds– chillers, pumps, dry coolers, chemical treatment, water storage, building pressurization, comfort heating/ cooling, heat exchangers, pumps, valves and systems
Perform CAD modeling and design of these systems. Deconflict your design with other disciplines in three dimensions
Perform fluid analyses for pressure balance, component design allowable, and consumables determination
Coordinate with procurement, construction and other disciplines to select, apply and procure equipment to your design that meets the timeline, cost profile and performance required for the build
When designing for internal manufacturing partners, ensure designs are manufacturable and reliable; work with the production team to ensure a smooth transition to a reliable manufacturing process that has minimal design engineering sustainment engineering required

BASIC QUALIFICATIONS:

Bachelor’s degree in an engineering discipline
Professional Engineer (PE) license
10+ years of professional experience working with various fluids components such as valves, pumps, COPVs, compressors, heat exchangers, pressure transducers, or temperature sensors

PREFERRED SKILLS AND EXPERIENCE:

Proven track record of effective management and leadership
Consulting experience in the data center market – AI-specific experience preferred
Hands-on experience with fluid (liquid and/or gas) handling systems
Experience using data acquisition equipment, as well as test instrumentation and control components: pressure transducers, thermocouples, resistance temperature detectors, relays
Experience with HVAC systems and air ducting
Experienced in REVIT with a solid understanding and application of parametric design tools and software
Ability to work independently

ADDITIONAL REQUIREMENTS:

Willing to work extended hours and/or weekends as needed

SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

Skills Required

Bachelor's degree in an engineering discipline
Professional Engineer license
10+ years of professional experience working with fluid components such as valves, pumps, compressors, heat exchangers, pressure transducers, or temperature sensors
Effective management and leadership experience
Consulting experience in the data center market, preferably AI-specific
Hands-on experience with liquid or gas fluid handling systems
Experience with data acquisition equipment, test instrumentation, and control components
Experience with HVAC systems and air ducting
Experience using Revit and parametric design tools
Ability to work independently
Willingness to work extended hours and/or weekends as needed

xAI Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about xAI and has not been reviewed or approved by xAI.

Healthcare Strength — Healthcare is described as comprehensive, including medical, dental, vision, mental health support, and fertility benefits. Additional protections such as disability and life insurance, plus HSA/FSA options, are also outlined.
Equity Value & Accessibility — Equity is positioned as a core component of total rewards alongside high base salaries for technical roles. Pre‑IPO stock grants are highlighted as enabling participation in potential company growth.
Leave & Time Off Breadth — The package includes flexible or generous PTO, paid holidays, and paid sick days. Company materials also describe flexible vacation policies intended to help manage fast‑paced workloads.