---
title: 'Manager, Fiber - Memphis at xAI'
canonical: 'https://feeny.ai/job/manager-fiber-memphis-xai-southaven-07cs7c3jbm93'
type: 'job'
last_seen: '2026-10-19'
---

# Manager, Fiber - Memphis at xAI

- **Company:** xAI
- **Location:** Southaven, MS / Memphis, TN
- **Posted:** 2026-06-23
- **Last confirmed live:** 2026-10-19
- **Apply:** https://job-boards.greenhouse.io/xai/jobs/5169683007

## 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 Manager, Fiber at SpaceXSI's Memphis data center, you will lead and oversee all fiber optic infrastructure activities, driving the successful execution of large-scale installations, maintenance, and optimization projects. You’ll combine hands-on technical expertise with strong leadership to manage teams of technicians, ensure the highest standards of safety and quality, and maintain the ultra-reliable high-speed connectivity that powers SpaceXSI's AI training and operations. Working closely with Foremen, Project Managers, and Superintendents, you’ll play a critical role in building and sustaining the robust network backbone essential to accelerating human scientific discovery through AI.

## RESPONSIBILITIES:

- Lead, mentor, and supervise a team of Lead Fiber Technicians and Fiber Technicians in all datacenter fiber optic installation, maintenance, and repair activities
- Oversee all phases of fiber optic projects from planning and execution to testing, handover, and documentation
- Ensure a safe, productive, high-quality, and compliant work environment for the entire fiber team
- Develop and implement sensor indicators, inspection protocols, and preventive maintenance routines
- Direct complex troubleshooting, repair, splicing, and installation of fiber optics systems
- Manage the inspection, replacement, and optimization of fiber optic cables and infrastructure
- Monitor signal strength, system performance, and resolve fiber optic problem areas proactively
- Maintain accurate system records, documentation, as-built drawings, and design updates
- Collaborate with Project Managers, Superintendents, and other trades to coordinate cross-functional work
- Provide technical guidance, training, performance feedback, and quality assurance across all fiber-related work

## BASIC QUALIFICATIONS:

- 2+ years of direct data center experience installing, certifying, and maintaining optical fiber in large-scale Tier 3 or 4 facilities
- 1+ years of experience leading or supervising fiber optic teams in a commercial/data center environment
- High school diploma or equivalency certificate

## PREFERRED SKILLS AND EXPERIENCE:

- Certification in fiber optics and/or cable installation (FOA, BICSI, or equivalent)
- Advanced expertise in fiber splicing, OTDR testing, and certification procedures
- Strong leadership and people-management experience in fast-paced construction or data center environments
- Deep technical knowledge of hyperscale data center networking, structured cabling, and fiber infrastructure
- Experience in AI/HPC data centers or other mission-critical facilities
- Proficiency with computers, fiber management software, and electronic testing systems
- Excellent problem-solving, communication, and organizational skills

## ADDITIONAL REQUIREMENTS:

- Ability to work in tight quarters with necessary physical dexterity
- Ability to lift up to 35lbs, unassisted
- Comfortable working at elevated heights (up to 50 feet) with appropriate safety gear
- Comfortable working in environments with high noise levels
- Available to work evenings and weekends as needed; schedule flexibility is required

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)

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