# Backend Engineer - Enterprise

**Company:** [xAI](https://hotfix.jobs/companies/xai)
**Location:** Tokyo, Japan
**Role:** Backend Engineering
**Skills:** Rust, C++, Python, TypeScript, gRPC, Docker, Kubernetes, Postgres, ClickHouse, Cockroachdb, LLM APIs, Embeddings, RAG
**Posted:** 2026-08-13

> Build scalable distributed systems and full-stack enterprise solutions that integrate complex systems and apply AI to business operations. The role requires expert Rust or C++, database operations, observability, and reliability experience, with Python, TypeScript, Kubernetes, and LLM expertise preferred.

## Job Description

## Responsibilities
- Design, implement, and maintain reliable, horizontally scalable distributed systems.
- Build full-stack enterprise solutions integrating messy systems, orchestrating complex workflows, and applying AI to business operations.
- Own end-to-end product execution from ideation through deployment.
- Collaborate with teammates and customers to gather feedback, refine features, and evolve user-centric products.
- Deliver robust, reliable, user-facing software at scale.

## Requirements
- Expert knowledge of either Rust or C++.
- Experience designing, implementing, and maintaining reliable, horizontally scalable distributed systems.
- Knowledge of service observability and reliability best practices.
- Experience operating databases such as PostgreSQL, ClickHouse, and CockroachDB.

## Nice-to-haves
- Expert knowledge of Python.
- Experience with Docker, Kubernetes, and containerized applications.
- Expert knowledge of TypeScript.
- Expert knowledge of gRPC, including unary, response streaming, bidirectional streaming, and REST mapping.
- Hands-on experience with LLM APIs, embeddings, or retrieval-augmented generation (RAG) patterns.
- Track record of delivering user-facing software at scale.

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