Senior ASIC Modeling Software Engineer

Doist; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Upscale AI is building the simulation platform for UpscaleAI’s next‑generation AI networking ASICs. The platform is a functionally accurate software model of our ASIC architecture, enabling software development, verification, and customer validation before silicon is available.

You’ll be responsible for developing, testing and maintaining the platform across multiple ASIC generations, ensuring it accurately represents hardware behavior and scales to support our customers’ demanding AI

Qualifications

• Experience with ASIC/SoC hardware modeling or simulation.
• Strong software development and debugging skills.

Responsibilities

• Develop and maintain the ASIC simulator for the current generation.
• Create next-gen ASIC models for future silicon with AI networking features.
• Model multi-chip systems with interconnected ASICs.
• Optimize performance to enable large-scale simulations.

Skills

ASIC simulation

Hardware modeling

System scalability

Performance optimization

Tools

ASIC simulators

Hardware modeling tools

Job description

Why join Upscale AI

Upscale AI is building the high-performance infrastructure powering the next generation of artificial intelligence. Backed by over $300M in funding and rapid global adoption, we are scaling systems designed for the world’s most demanding AI workloads. We focus on first‑principles engineering across silicon, systems, and networking—where performance, scale, and execution are critical. Our team is talent‑dense and high‑performing. We value ownership, technical rigor, and speed, and we offer the opportunity to work on foundational problems with immediate, real‑world impact. If you’re looking to do high‑impact work, move fast, and help define the infrastructure behind the future of AI—Upscale AI is where you can produce meaningful work at the frontier—and operate at a high standard.

Position Overview

About the role: We’re building the simulation platform for UpscaleAI’s next‑generation AI networking ASICs. The platform is a functionally accurate software model of our ASIC architecture, enabling software development, verification, and customer validation before silicon is available. You’ll be responsible for developing, testing and maintaining the platform across multiple ASIC generations, ensuring it accurately represents hardware behavior and scales to support our customers’ demanding AI infrastructure workloads.

What You’ll Work On

• ASIC Architectural Model: Our current‑generation ASIC simulator
• Next‑gen ASIC models: Future silicon with enhanced AI networking features
• Multi‑chip simulation: Modeling systems with multiple interconnected ASICs
• Performance optimization: Making large‑scale simulations practical