Machine Learning Engineer - Recommendation Systems
Quick Summary
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.
Designing and architecting recommendation algorithms across various product surfaces Leverage all of xAI’s infra and AI stacks to dramatically enhance the user experience Write data pipelines and training jobs that continuously learn from product…
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.
About the Role
~1 min readWe’re seeking exceptional Applied engineers to join a high-priority project that approximately 600 million monthly users use. This is an exciting opportunity for individuals with a engineer or scientist background to apply their skills to recommendation systems, ranking algorithms, search technologies, and many other systems. You’ll work at the intersection of advanced AI development and real-world impact, enhancing the ability to connect users with relevant content, accounts, and experiences.
Responsibilities
~1 min read- →Designing and architecting recommendation algorithms across various product surfaces
- →Leverage all of SpaceXSI's infra and AI stacks to dramatically enhance the user experience
- →Write data pipelines and training jobs that continuously learn from product data.
- →Iterate and improve the algorithm by gathering user feedback in real time through experimentation
- →Ensuring scalability and efficiency of machine learning systems
Requirements
~1 min read- Knowledge of data infrastructure like Kafka, Clickhouse, and Spark
- Experienced in implementing recommender systems and/or deep learning applications at industrial scale
- Skilled in one or more DL software frameworks such as JAX or PyTorch
- Exceptional candidates may be experienced in writing CUDA kernels
What We Offer
~1 min read$180,000 - $440,000 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.
Location & Eligibility
About this job
- Pay per year
- $180,000–$440,000 a year
- 48% above the $210,000 median for Machine Learning Engineer jobs on Jobera (862 salaries).
- Who can apply
- United States
- Posted
- 204 days ago
Listing Details
- First seen
- March 26, 2026
- Last seen
- October 16, 2026
Posting Health
- Days active
- 203
- Repost count
- 0
- Trust Level
- 42%
- Scored at
- October 16, 2026
Signal breakdown
Similar Machine Learning Engineer jobs
View all →Stay ahead of the market
Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.
No spam. Unsubscribe at any time.
