Sr. Software Engineer, Ads Product
SpaceXAI builds frontier AI models and products including the Grok conversational assistant and a multimodal developer API.
Funding history
About SpaceXAI
SpaceXAI is a US-based AI company focused on accelerating scientific discovery and understanding the universe through reasoning, voice, image, video, and generative AI systems. Formerly xAI, it was acquired by SpaceX effective February 2, 2026, while continuing to operate the x.ai site and services.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and ship product features across the X Ads Platform, working on ad delivery, targeting, optimization, measurement and advertiser experience. You will use AI and infrastructure capabilities to improve ad quality, contribute to reliable distributed systems, collaborate with engineers and product leads, and debug and improve production systems.
Requirements
- 5+ years of experience building software through internships, projects, research, open-source work, startups, or full-time roles
- Preferred: strong software engineering fundamentals
- Preferred: experience with React, Golang, Python, Rust, gRPC, Java, or Scala
- Preferred: experience with large-scale backend systems or data pipelines
- Preferred: experience with ads, recommendations, search, ranking, or machine learning
Responsibilities
- Build and ship product features across the X Ads Platform
- Work on systems for ad delivery, targeting, optimization, measurement and advertiser experience
- Use infrastructure and AI capabilities to improve advertising products
- Contribute to reliable, fast and scalable distributed systems
- Collaborate with engineers, product leads and cross-functional partners
- Debug, maintain and improve production systems
Benefits
- Equity
- Comprehensive medical, vision, and dental coverage
- 401(k) retirement plan
- Short & long-term disability insurance
- Life insurance
- Discounts and perks
