xAI

xAI

Posted via Greenhouse

Web Engineer - X

Posted Aug 5, 2026

Role at a glance

Salary
$180K – $440K/yr
Location
Palo Alto, California, United States
Work arrangement
On-site
Employment
Full-time
Experience
2+ years of web development experience.

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Role Summary

AI-generated

The role is for a Fullstack / Web Engineer focused on frontend development and design, building user-facing features that support real-time conversations and social media experiences. The engineer will work across scalable backend systems and web products used by millions worldwide.

What You'll Do

  • Own features from inception and design through implementation and launch.
  • Build and maintain performant products and features using modern web standards, technologies, frameworks, and AI tooling.
  • Develop fullstack features including user dashboards, personalized experiences, content delivery, interactive tools, assessments, and...
  • Lead architecture, scalability, and reliability decisions for high-concurrency, low-latency systems.
  • Maintain engineering excellence through testing, monitoring, deployment, and secure data handling.
  • Drive technical and product decisions and deploy global features.

Generated from the employer's posting. Verify important details before applying.

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Qualifications

TypeScript, Node.js, modern web frameworks such as React, modern CSS/SASS, UI and UX design, and application performance, security, and offline functionality.

Required

  • TypeScript
  • Node.js
  • Modern web frameworks (e.g., React)
  • Modern CSS/SASS
  • UI and UX design
  • Application performance optimization
  • Application security
  • Offline functionality

Preferred

  • 5+ years of experience in a web frontend role, working on a large scale consumer app
  • Backend development
  • Rust
  • Go
  • Java
  • Python
  • Scala

Original job description

Content provided by the employer
View on company site

SpaceXAI’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 employees 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 exceptional Fullstack / Web Engineers that can work across the stack but have a passion for frontend development and a keen eye for design. You'll architect and optimize user-facing features that power real-time conversations for millions worldwide. Dive into cutting-edge technologies and scalable backend systems, collaborating with top-tier talent to push the boundaries of web performance and innovation. You have the ability to thrive in a fast-paced environment, where you proactively tackle high-impact challenges that shape the future of social media—perfect for engineers passionate about crafting seamless, responsive experiences that drive global engagement and redefine digital interaction.

RESPONSIBILITIES:

  • Own and drive features from inception and design to implementation and launch, being the web expert on your team.
  • Build and maintain high-quality, performant products and features, leveraging the most modern and cutting edge web standards, technologies, frameworks, and AI tooling.
  • Responsible for fullstack features, including user dashboards, personalized experiences, content delivery, interactive tools, assessments, and real-time analytics
  • Lead architecture, scalability, and reliability decisions for high-concurrency, low-latency systems.
  • Uphold engineering excellence via testing, monitoring, deployment, and secure data handling.
  • Drive technical/product decisions with teams and deploy global features to maximize user value.

BASIC QUALIFICATIONS:

  • 2+ years of web development experience.
  • Expert in TypeScript, Node.js, and modern web frameworks (e.g., React).
  • Expert in modern CSS/SASS
  • Experience in high-quality UI and UX design
  • Proven track record of optimizing applications for performance, security, and offline functionality.

PREFERRED SKILLS AND EXPERIENCE:

  • 5+ years of experience in a web frontend role, working on a large scale consumer app.
  • Experience with backend development, proficiency in one or more of the following: Rust, Go, Java, Python, Scala.

COMPENSATION AND BENEFITS:

$180,000 - $440,000 USD

Base salary is just one part of our total rewards package at SpaceXAI, 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.

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

xAI

About the company

xAI

Large Enterprise

xAI is a cutting-edge technology company focused on developing advanced artificial intelligence solutions to enhance human capabilities and optimize decision-making processes. Founded by a team of leading experts in AI and machine learning, xAI aims to address complex challenges across various industries, including healthcare, finance, and transportation. By prioritizing ethical AI development, the company is committed to creating innovative tools that empower organizations to harness the full potential of artificial intelligence while ensuring transparency and accountability.

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