---
title: 'Reliability Engineer (Data Center Infrastructure) at xAI'
canonical: 'https://feeny.ai/job/reliability-engineer-data-center-infrastructure-xai-southaven-em2npmjcb5n8'
type: 'job'
last_seen: '2026-10-19'
---

# Reliability Engineer (Data Center Infrastructure) at xAI

- **Company:** xAI
- **Location:** Southaven, MS / Memphis, TN
- **Posted:** 2026-07-10
- **Last confirmed live:** 2026-10-19
- **Apply:** https://job-boards.greenhouse.io/xai/jobs/5184586007

## Job description

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.

## ABOUT THE ROLE:

As a member of the facility operations team, you will design, build, and activate some of the world’s most technically advanced facilities and data centers. You will be the subject-matter expert on the maintenance and reliability of critical infrastructure assets. You will have the opportunity to utilize your knowledge, experience, and creativity to develop novel solutions at the cutting edge of space technology. You will work with other facility engineers and internal customers to support these goals and have the opportunity to drive real global impact, ultimately leading to making life multiplanetary.

## RESPONSIBILITIES:

- Responsible for owning and being the subject matter expert on fluid/HVAC components across the site.
- Responsible for owning maintenance and reliability of critical infrastructure assets across campus.
- Commission systems, validate nameplate performance, and implement predictive maintenance protocols to minimize downtime.
- Equipment selection, sizing, and procurement support.
- Drive root-cause investigations for any equipment failures and implement corrective actions across the site.

## BASIC QUALIFICATIONS:

- Bachelor’s degree in an engineering discipline.
- 1+ 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:

- 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 NX or other CAD packages with a solid understanding and application of geometric dimensioning and tolerancing (GD&T) per ASME Y14.5-1994 and tolerance stack-up analysis.
- Experience with structural analysis methods in order to optimize hardware to strength requirements as well as to evaluate for life and fracture.
- Experience with pressurized structures and/or lightweight aerospace structures.
- Ability to work independently.

SpaceXSI is an equal opportunity employer. For details on data processing, view our [Recruitment Privacy Notice](https://x.ai/legal/recruitment-privacy-notice).

## About xAI

## Company Overview
- **One‑liner**: xAI builds artificial intelligence systems to accelerate human scientific discovery and “understand the universe,” with products spanning frontier reasoning models, real‑time voice, and generative media.
- **Entity Type**: Private (last funding round: Series E, January 2026; acquired by SpaceX in February 2026)
- **Headquarters**: Palo Alto, California, USA (additional offices in Seattle, WA; Memphis, TN; London, UK)
- **Founded**: 2023
- **Founders**: Elon Musk

## Core Business
- Primary industry: Artificial Intelligence (AI research, large language models, voice AI, generative media)
- Target customers: B2B (developers via API), B2C (consumers via Grok on 𝕏, SuperGrok subscriptions), Enterprise & Government (xAI for Government)
- Mission: “To understand the universe” – building AI that extends what humanity can know and do.

## Products & Services
- **Grok (base models)** : A conversational AI assistant modeled after *The Hitchhiker’s Guide to the Galaxy*, available on the 𝕏 platform and via API.
- **Grok 4 / Grok 4 Heavy**: The most intelligent reasoning models, featuring native tool use and real‑time search integration (SuperGrok and Premium+ tiers).
- **Grok Voice Agent API / Voice Agent Builder**: Create custom voice agents in under two minutes (no‑code) – includes speech‑to‑text, text‑to‑speech, custom voice cloning, and multilingual support.
- **Grok Imagine API**: State‑of‑the‑art video generation API (quality, cost, latency).
- **Grok‑1.5 / Grok‑2 / Grok‑2 mini**: Earlier model releases with improved reasoning and 128K context length.
- **PromptIDE**: An integrated development environment for prompt engineering and interpretability research.
- **xAI for Government**: A suite of frontier AI products tailored for U.S. government customers.
- **Colossus Supercomputer**: 200,000‑GPU cluster built in 122 days, used for training xAI models; now also leased to Anthropic (Colossus 1 agreement).

All products are delivered as SaaS, API, and model weights (open‑source release of Grok‑1).

## Market Standing
- **Valuation / Funding**: 
  - Series B (May 2024): $6 B 
  - Series C (Dec 2024): $6 B (led by A16Z, BlackRock, Fidelity, Kingdom Holdings, Lightspeed, MGX, Morgan Stanley, OIA, QIA, Sequoia, Valor, Vy Capital, others)
  - Series E (Jan 2026): $20 B
  - Acquisition by SpaceX announced Feb 2, 2026 (terms not disclosed).
- **Key Metric**: Total disclosed funding ~$32 B; annual revenue not publicly available.
- **Notable Investors/Partners**: A16Z, BlackRock, Fidelity, Sequoia Capital, Morgan Stanley, Kingdom Holdings, Lightspeed, MGX, Valor Equity Partners, Vy Capital, Anthropic (Colossus deal), U.S. Department of War (selected Dec 2025).
- **Growth Signals**: 
  - Rapid scaling from founding to 200K‑GPU cluster in 122 days.
  - Over 214 open roles listed on Greenhouse as of mid‑2026.
  - #1 on Big Bench Audio (Grok 4 audio performance).
  - Expanded into voice agents, video generation, and government verticals within 3 years.
  - Acquisition by SpaceX signals deep integration with space‑tech resources.

## Competitive Advantages
- **Compute infrastructure**: Colossus supercomputer – one of the largest GPU clusters in existence, enabling faster training and larger models.
- **Model performance**: Grok 4 claims “most intelligent model in the world” with top benchmarks (Big Bench Audio #1).
- **Vertical integration**: Tight coupling with 𝕏 platform for data, distribution, and real‑time world knowledge.
- **Speed of execution**: “Move quickly and fix things” culture; built Colossus in 122 days.
- **Government contracts**: Early access to public‑sector AI markets (U.S. Department of War).
- **Talent density**: Small, focused team of researchers and engineers; in‑person work accelerates iteration.

## Strategic Focus
- **Continue advancing frontier reasoning** (Grok 4 Heavy, next‑gen models).
- **Expand voice and multimodal APIs** for developers (Voice Agent Builder, Custom Voices Library).
- **Deepen government / defense partnerships** (xAI for Government, Department of War).
- **Scale infrastructure** post‑acquisition via SpaceX resources.
- **Remain “open” where strategic** (open‑source release of Grok‑1 weights).

## Why Work Here
- **Culture**: “Ambitious goals, fast execution” – rejects consensus in favor of first‑principles reasoning. In‑person work prioritized (Palo Alto, Seattle, Memphis, London).
- **Benefits**: 
  - Competitive cash + equity compensation.
  - Comprehensive medical, dental, vision, disability, life insurance.
  - 401(k) plan, fertility benefits, flexible vacation.
  - Visa sponsorship offered.
- **Engineering culture**: No recruiters for assessments – applications reviewed directly by technical team. Interview process: application → screening → technical interviews → offer.
- **Mission‑driven**: Opportunity to work on frontier AI models that aim to “advance humanity.”
- **Perks**: In‑person collaboration, fast‑paced environment, ownership of meaningful projects.

## Sources
1. [x.ai/company](https://x.ai/company)
2. [x.ai/careers](https://x.ai/careers)
3. [job-boards.greenhouse.io/xai](https://job-boards.greenhouse.io/xai)
4. [x.ai/news](https://x.ai/news)
5. [x.ai/careers/open-roles](https://x.ai/careers/open-roles)

## Other roles at xAI

- [Certified Weld Inspector (CWI) - Memphis](https://feeny.ai/job/certified-weld-inspector-cwi-memphis-xai-southaven-76w7pgjfdgpx) — Southaven, MS / Memphis, TN
- [IT Network Engineer - Memphis](https://feeny.ai/job/it-network-engineer-memphis-xai-memphis-jva5yv0emayw) — Memphis, TN
- [Manager, Supercomputer Site Reliability Engineering - Memphis](https://feeny.ai/job/manager-supercomputer-site-reliability-engineering-memphis-xai-southaven-qvn5x4c3x7nw) — Southaven, MS / Memphis, TN
- [Data Center Operations Technician](https://feeny.ai/job/data-center-operations-technician-xai-southaven-anb7q2cn8wvy) — Southaven, MS / Memphis, TN
- [Lead Data Center Technician](https://feeny.ai/job/lead-data-center-technician-xai-southaven-7qwtc30mwapk) — Southaven, MS / Memphis, TN
- [Linux Data Center Operations Technician - Memphis](https://feeny.ai/job/linux-data-center-operations-technician-memphis-xai-southaven-t8135j8zg88s) — Southaven, MS / Memphis, TN
- [Senior Linux Data Center Technician - Memphis](https://feeny.ai/job/senior-linux-data-center-technician-memphis-xai-southaven-g102dbk7za6f) — Southaven, MS / Memphis, TN
- [Site Reliability Engineer](https://feeny.ai/job/site-reliability-engineer-xai-southaven-t765rmjcyats) — Southaven, MS / Memphis, TN
- [Data Visualization Engineer](https://feeny.ai/job/data-visualization-engineer-xai-palo-alto-nb81ep4q7qtr) — Palo Alto, CA
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