Senior/Staff Backend Engineer - Distributed System

ABOUT US At Zettabyte, we’re on a mission to make AI compute ubiquitous, seamless, and limitless. We’re building a cloud where AI just works—anywhere, anytime. “AI Power. Everywhere.” Be part of the team designing the infrastructure for the AI-first world. WHY THIS ROLE EXISTS We need a Backend Engineer to build the systems that orchestrate GPU clusters for AI workloads. You'll create APIs that handle GPU allocation, memory management, compute scheduling, and multi-tenant isolation—challenges unique to AI infrastructure that go far beyond typical backend engineering. As part of our backend team, you'll solve problems like: How do we efficiently share expensive GPU resources across users? How do we handle GPU memory constraints for large AI models? How do we ensure quality of service when workloads compete for compute? This is an opportunity to build infrastructure where every API call could allocate thousands of dollars worth of compute per hour, where your optimizations directly impact whether AI startups can afford to train their models. WHAT YOU’LL DO - Design APIs that abstract complex GPU operations into simple developer experiences - Build scheduling algorithms that maximize GPU utilization while ensuring SLA compliance - Develop resource management systems for GPU lifecycle—provisioning, allocation, scheduling, and release - Create usage tracking and billing systems for GPU-hours, memory usage, and compute utilization - Implement monitoring for GPU-specific metrics, health checks, and automatic failure recovery - Build multi-tenancy systems with resource isolation, quota management, and fair scheduling - Optimize cold starts for model serving and implement efficient model loading strategies - Collaborate with frontend engineers to expose complex infrastructure through intuitive interfaces - Leverage AI-assisted coding tools (GitHub Copilot, Claude Code, Cursor IDE, etc.) to boost productivity and code quality. YOU’LL THRIVE HERE IF YOU - 5+ years backend engi