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.
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 analytic
- 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
- 5+ years of experience in a web frontend role, working on a large scale consumer app
- Experience in TypeScript, Node.js, and modern web frameworks (e.g., React)
- Experience in modern CSS/SASS
- Experience in high-quality UI and UX design
- Proven track record of optimizing applications for performance, security, and offline functionality
- Experience with backend development, proficiency in one or more of the following: Rust, Go, Java, Python, Scala
$180,000 - $330,000 USD
Base salary is just one part of our total rewards package at SpaceXSI, 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.
SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
Skills Required
- 2+ years of web development experience
- Expert in TypeScript
- Expert in Node.js
- Expert in 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
- 5+ years of experience in a web frontend role working on a large scale consumer app
- Backend development proficiency in one or more: Rust, Go, Java, Python, Scala
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.
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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.
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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.
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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.
xAI Insights
What We Do
Understand the Universe
