Sr. Software Engineer, Ads Product

xAI · Palo Alto, CA

Posted Nov 6, 2026

Est. total comp~$201K–$317K

Apply on xAI's site ↗

From the posting

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.

SR. SOFTWARE ENGINEER, ADS PRODUCT

X Ads is one of the highest-leverage product areas at X. You’ll work on systems that operate at massive scale, directly affect the business, and are being rebuilt with modern infrastructure and AI at the center. This is an opportunity to join a small, fast-moving team where early-career engineers can take on real ownership, learn from strong engineers, and ship products that matter.

We’re looking for high-slope software engineers who want to help rebuild and transform the X Ads Platform using SpaceXSI's infrastructure and AI stack. …

Excerpt from xAI's public job board. Read the full posting.

Job inventory

Required 1 item

Experience: 5+ years of experience in building software

Preferred 8 items

Skills and tools: React, Go, Python, Rust, Java, Scala, Machine learning, LLM

Get ready for this role

Crew department: Systems

Skills this kind of role usually asks for:

Python and C++
Networking
Linux and cloud basics
Cybersecurity basics
RF and antennas basics

Related coursework: the Systems Track: Spacecraft Links and Flight Software Basics. We study 4 core modules, take a quiz after each one and pass a final test to earn the Mars Mining Certificate in Spacecraft Links and Flight Software. We can link its verification page from our resume. It records online learning, not professional licensing or work experience.

Join the crew and train for this role About Systems

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I can do Python and C++ on the job, or have used it in a class or project I can do Networking on the job, or have used it in a class or project I can do Linux and cloud basics on the job, or have used it in a class or project I can do Cybersecurity basics on the job, or have used it in a class or project I can do RF and antennas basics on the job, or have used it in a class or project I have a project or work sample I could show an interviewer My resume is tailored to this kind of role I've practiced answering interview questions for this kind of job

Free. The department comes from the job title and can be off. A Mars Mining certificate shows you studied and passed our test; it isn't a license or academic credit.

About this listing. Pulled automatically from xAI's public job board and refreshed daily; closed roles are removed. Mars Mining Co. is not the employer, does not take applications and does not screen candidates. Field and level labels come from the job title and can be wrong.

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