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Posted 10 mo agoFirst seen 23 d ago
Backend Engineer, Enterprise
Posted by xAI on 17 December 2025, 320 days ago. Still on their Greenhouse board when we checked 24 min ago. Half of xAI's roles come down within 75 days.
What the posting is about
Build full-stack AI solutions, integrate with complex systems, and collaborate with customers. Expertise in Rust, C++, Python, and distributed systems required. Experience with databases, Docker, Kubernetes, and gRPC preferred.
Read out of the posting
LevelNot stated
Experience asked5+ years
EmploymentNot stated
LocationTokyo, Japan
RemoteNot stated
Visa sponsorshipNot stated
SalaryNot published, and most postings do not
Posted2025-12-17
Found viagreenhouse, direct from their system
We saw it 10 months after it went up.
The posting, as the company wrote it
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.
BACKEND ENGINEER, ENTERPRISE
The Enterprise Agents Engineering Team at SpaceXSI is a team of builders solving the hardest problems in applied AI: integrating with messy systems, orchestrating complex workflows, and harnessing AI to transform business operations. We build full-stack solutions with ownership of end-to-end product execution from ideation to deployment, collaborating closely with our team to incorporate cutting-edge AI advancements into robust and reliable user-centric solutions. Through an iterative development process, we work hand-in-hand with customers to gather feedback, refine features, and evolve products to address real-world challenges.
BASIC QUALIFICATIONS:
Experience with Rust or C++
Experience in designing, implementing, and maintaining reliable and horizontally scalable distributed systems
PREFERRED SKILLS AND EXPERIENCE:
Experience with operating databases such as PostgreSQL, ClickHouse, and CockroachDB
Knowledge of service observability and reliability best practices
Expert knowledge of Python
Expert knowledge of TypeScript
Experience with Docker, Kubernetes, and containerized applications
Expert knowledge of gRPC (unary, response streaming, bi-directional streaming, REST mapping)
Hands-on experience with LLM APIs, embeddings, or RAG patterns
Track record of delivering user-facing software at scale
SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice .
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