# Software Engineer, Senior at Positron AI

- Company: Positron AI
- What the company does: About Positron AI Positron AI specializes in developing custom hardware systems to accelerate AI inference. Backed by NEA.
- Company website: https://www.positron.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: Remote (United States)
- Work setup: Remote
- Pay: $150K to $250K base salary per year (USD)
- Posted: 2025-02-11
- Apply by: 2026-10-08
- Apply: https://ats.rippling.com/positron/jobs/0e45ee83-ba57-44ec-ac62-87fbd7e5c617
- Page: https://www.1752.vc/careers/jobs/positron-ai-software-engineer-senior/

## About the role

While this role is currently posted at a specific level, we are a growth-oriented organization and are open to hiring at a more senior level for the right candidate. Please note that this job description serves as a focused but generalized overview of the role; specific responsibilities and impact expectations will be tailored to the experience and seniority of the final hire.

## What they're looking for

- Design and implement high-performance inference software for LLMs on custom hardware
- Develop and optimize C++-based libraries that efficiently utilize SIMD instructions, threading, and memory hierarchy
- Work closely with FPGA and systems engineers to ensure efficient data movement and computational offloading between x86 CPUs and FPGAs
- Optimize model execution via low-level optimizations, including vectorization, cache efficiency, and hardware-aware scheduling
- Contribute to performance profiling tools and methodologies to analyze execution bottlenecks at the instruction and data flow levels
- Apply NUMA-aware memory management techniques to optimize memory access patterns for large-scale inference workloads

Tags: Engineering