Sr. Software Engineer, Ads Product

Palo Alto, CAFull-time$180k–$330k2026-11-06 → 2026-11-10

Core

Build and ship product features for the X Ads Platform, focusing on ad delivery, targeting, optimization, and advertiser experience using SpaceXSI's infrastructure and AI stack.

Role type

Senior Software Engineer (Ads Product)

Builds

X Ads Platform features, ad delivery systems, and AI-powered advertising tools

Domain

Advertising technology, distributed systems, AI/ML

Deliverable

product features

Required skills

Software engineering fundamentals, distributed systems, backend systems, data pipelines, React, Golang, Python, Rust, gRPC, Java, Scala, machine learning, LLMs, experimentation, ranking, optimization

Preferred skills

Ads experience, recommendations, search, ranking, marketplaces, payments, analytics, growth systems, large-scale backend systems, startup experience

Technologies

React, Golang, Python, Rust, gRPC, Java, Scala

Responsibilities

Build and ship product features, work on ad delivery and targeting systems, use AI to improve ad performance, contribute to distributed systems, debug production systems

Seniority

Senior, hands-on IC

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