Founded: 2023
Founder / CEO: Elon Musk
Core product: Grok chatbot (Grok model family) and related generative tools
Notable funding: $6B Series C (May 2024); $20B Series E announced (Jan 2026)
Employees (reported): 5262
Artificial intelligence / conversational and generative AI
2023
Technology, Information and Internet
$6 billion
Reported participation from a16z, Sequoia, Valor, BlackRock, Fidelity, Kingdom Holdings, Lightspeed, MGX, Morgan Stanley, OIA, QIA among others.
$20 billion
Company announced Series E with named investors including Valor Equity Partners, Fidelity, Qatar Investment Authority and others.
“Includes participation from major institutional and strategic investors such as Andreessen Horowitz (a16z), Sequoia Capital, Valor Equity Partners, Fidelity, BlackRock, Kingdom Holdings, Morgan Stanley, Qatar Investment Authority, Nvidia and Cisco.”
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About xAI
xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.
Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity.
We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important.
All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.
About the Role
We’re looking for an exceptional backend software engineer to join the Monetization Team at X, a high-impact group responsible for driving significant revenue through three key products: X Premium , X Verified Organizations , and the Creator Revenue Sharing Program . These products serve millions of users and businesses daily, powering subscriptions, growth, and creator monetization on one of the world’s largest platforms.
As a backend engineer, you’ll design and build scalable, high-performance systems that power subscriptions infrastructure, new monetized products, user growth, and creator monetization. You’ll work on mission-critical infrastructure that processes millions of transactions, optimizes user acquisition and retention, and enables creators to earn a living through their content. This is a unique opportunity to make a large-scale revenue impact while creating products that users and businesses love.
What you’ll do
Who you are
Tech stack (optional)
Interview process
After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 30-minute phone interview with technical questions. If you clear the phone interview, you will proceed to:
Our goal is to complete the main process within one week.
Location
The role is based in Palo Alto. Candidates are expected to be located near the Bay Area or open to relocation.
Annual Salary Range
$180,000 - $440,000 USD
Benefits
Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.
xAI is an equal opportunity employer.
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Experience : 5+ years in backend or systems engineering, with experience in high-scale platforms.
Expert in distributed systems : You’ve built and maintained systems with high concurrency, fault tolerance, and uptime.
Builder mentality : You thrive in fast-paced, high-impact environments and are excited by solving zero-to-one problems.
Strong communicator : You articulate complex technical ideas clearly, advocate for simple solutions, and avoid over-engineering.
Revenue-minded : You understand the importance of building systems that drive business outcomes and user satisfaction.
Bonus :
Experience with payments infrastructure, subscription platforms, or creator monetization systems.
Familiarity with growth engineering, user acquisition, or retention systems.
Prior work in fintech, social platforms, or startups.