Member of Technical Staff - X Search

Palo Alto, CA💼 Full-time💰 $180,000–$180,000🗓 2026-05-26 → 2026-09-26

Core

Building and operating the core search engine for X (Twitter), combining information retrieval with Grok's reasoning capabilities to power discovery.

Role type

Senior IC search engineer (ML & infrastructure)

Builds

Real-time search stack, ranking models, and search infrastructure for millions of users

Domain

Social media, search, machine learning

Deliverable

production ML models | product features | infrastructure

Required skills

Python, Go, Rust, vector databases, large-scale search systems, production ML systems

Preferred skills

None stated

Technologies

Python, Go, Rust

Responsibilities

Build search and retrieval algorithms that scale to millions of users; Build and operate large scale search engine and search infrastructure; Train state of the art ML ranking models; Integrate Grok in search systems and products

Seniority

Senior, hands-on IC

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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 emp