# Founding Engineer -- AI Inference Stack at Piris Labs

- Company: Piris Labs (YC W26)
- What the company does: The Networking Layer of AI. Backed by Y Combinator.
- Company website: https://pirislabs.io/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $100K to $200K base salary per year (USD)
- Posted: 2026-04-28
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/pirislabs/jobs/r6mskwZ-founding-engineer-ai-inference-stack
- Page: https://www.1752.vc/careers/jobs/piris-labs-founding-engineer-ai-inference-stack/

## About the role

Architect the Stack: Iterate on our software layer that orchestrates inference across heterogenous cluster of compute resources. Kernel and Compiler Optimization: Write and optimize high-performance kernels in CUDA, Triton, or custom targets to squeeze every drop of performance from the system.

## What they're looking for

- Curiosity-driven , with a genuine passion for compute architectures and problem solving
- Systems Obsessed: You have a deep understanding of computer architecture, memory hierarchies, and low-level systems programming in C++, Rust, or CUDA
- AI Fluent: You understand the guts of transformer architectures and have experience with inference frameworks like vLLM, TensorRT, ONNX, and Kubernetes
- A First-Principles Thinker: You are not afraid to throw out the standard way of doing things if it means achieving a 10x performance gain

Tags: Engineering