Member of Technical Staff (Software Engineer, Models)

United States Digital Space LLC; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Perplexity in San Francisco is seeking a deeply technical software engineer to own and evolve our model serving platform, connecting products and research systems with inference layers. This mission-critical system provides a fast, reliable interface across providers.

You will operate at the intersection of distributed systems, AI products, and infrastructure, designing core abstractions, guiding technical decisions, and delivering production Rust and Python services handling hundreds of

Qualifications

• 5+ years of experience building and shipping large-scale systems with high reliability and performance.
• Proficiency in a general-purpose backend language (Python, Rust, C++, Go).
• BS, MS, or PhD in CS, Engineering, or related fields (or equivalent experience).

Responsibilities

• Own and evolve the model serving platform connecting products and research systems with inference layers.
• Design core abstractions, lead high-conviction technical decisions, and ship production Rust and Python services handling hundreds of millions of requests per day.

Skills

Distributed systems

Python

Rust

C++

Go

Software craftsmanship

Cloud infrastructure

Education

Bachelor's degree in Computer Science or Engineering

Tools

AWS

Kubernetes

Job description

About the company AIIn 2026, we launched Computer, the defining product for the new era of agentic AI. We’ve scaled beyond the millions of people using the company every day for research, shopping, investing and curiosity into a new paradigm of using AI to transform knowledge into action.

As an engineer at the company, your role will be to build products and systems that define how AI empowers humans to think, decide and act. You’ll ship fast and work between both product and infrastructure advancements in our technology.

Why the company is different Craftsmanship. We build high quality, tasteful products targeting both the AI native and AI curious.

• Ownership. You identify the problem, design the solution and ship it.

• Entrepreneurship. We think like founders, act with urgency, and hustle to deliver for each other and our users.

• Scholarship. Work among highly talented peers, pursuing knowledge and truth, upleveling ourselves, our teams, and our products.

• Partnership. We amplify each others' strengths, break down silos, and give selflessly to help our colleagues deliver excellence.

About the RolePerplexity is looking for a deeply technical software engineer to own and evolve our model serving platform, which is responsible for connecting our products and research systems with our inference layers. This mission-critical system gives teams one fast, reliable interface across providers.

You will work at the intersection of distributed systems, AI products, and infrastructure. You will make it dramatically easier for teams across the company to adopt new models, run rigorous experiments, and ship dependable products.

The ideal candidate combines sound technical judgment forged in production systems with active curiosity around the rapidly changing capabilities and failure modes of frontier models. You will design core abstractions, lead high-conviction technical decisions, and write production Rust and Python for a service that serves hundreds of millions of model requests per day.

Required Qualifications 5+ years of experience building and shipping large-scale systems and services with high reliability, availability, and performance.

• Strong software engineering craft, with special care for developer experience and designing future‑proof systems that can evolve along with a rapidly advancing AI landscape.

• Proficiency with a general‑purpose backend language (Python, Rust, C++, Go) and cloud infrastructure (AWS, Kubernetes).

• BS, MS, or PhD in Computer Science, Engineering, or related fields (or equivalent experience).