Core Engineer, AI-Powered Autonomous Infra

Rox; San Francisco (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

Rox is hiring a Core Engineer to design and operate the foundational infrastructure behind Rox’s autonomous agent platform. This role is ideal for engineers who have deep systems intuition and want to work on infrastructure problems at the frontier of AI reliability.

You’ll build scalable backend systems, work on real-time retrieval, distributed execution, and graph-based infrastructure, and collaborate with platform, AI, and product teams to shape the long-term architecture behind Rox’s agent

Qualifications

• Strong background in distributed systems or platform engineering.
• Experience building and operating high-scale backend infrastructure.
• Strong systems fundamentals across networking, concurrency, storage, and reliability.
• Experience with streaming systems, distributed databases, or real-time infrastructure.
• Ability to independently design and ship complex technical systems.
• Strong product and engineering judgment.

Responsibilities

• Build infrastructure for reliable autonomous agent execution.
• Design systems for deterministic, auditable agent behavior at enterprise SLAs.
• Develop low-latency retrieval and context systems powering AI workflows.
• Build and scale graph-based infrastructure and semantic retrieval systems.
• Improve observability, debugging, and reliability across distributed agent systems.
• Work on real-time data ingestion and streaming architectures.
• Collaborate closely with platform, AI, and product engineering teams.
• Help shape the long-term architecture behind Rox’s agent runtime.

Skills

Distributed systems

Platform engineering

Backend infrastructure

Streaming systems

Real-time infrastructure

Reliability engineering

Networking fundamentals

Concurrency

Observability

Tools

Apache Flink

Distributed query engines

Graph retrieval systems

Semantic search infrastructure

Streaming compute systems

Job description

Rox is hiring a Core Engineer to design and operate the foundational infrastructure behind Rox’s autonomous agent platform. This role is ideal for engineers who have deep systems intuition and want to work on infrastructure problems at the frontier of AI reliability.

You’ll build scalable backend systems, work on real-time retrieval, distributed execution, and graph-based infrastructure, and collaborate with platform, AI, and product teams to shape the long-term architecture behind Rox’s agent