Backend/Infrastructure Engineer – Search

About the role

Perplexity is seeking a Backend/Infrastructure Engineer to own and improve the latency-sensitive search stack. You will work across high‑QPS Rust and Go services, distributed retrieval systems, and cloud infrastructure, using AI‑native tools where they add value.

Key responsibilities

• Build and operate scalable, low‑latency infrastructure for search serving and retrieval.
• Design and improve distributed backend systems handling high request volumes.
• Debug and optimise Linux systems, containers, networking, and production services.
• Enhance reliability through observability, capacity planning, performance profiling, and incident response.
• Design, deploy, and operate cloud‑native systems primarily on AWS and Kubernetes.
• Develop internal tools and automation for development, testing, debugging, and infrastructure operations.
• Improve CI/CD pipelines, release processes, and production rollout safety.

Required profile

• Strong experience with cloud infrastructure, distributed systems, and automation.
• Deep understanding of Linux internals, performance analysis, and production debugging.
• Experience building or operating latency‑sensitive, high‑throughput backend systems.
• Fluency in at least one systems language such as Rust, Go, C++, or Java.

Required skills

• AWS
• Kubernetes
• Linux
• Rust
• Go
• C++ or Java
• Containers (Docker)
• CI/CD tooling
• Observability platforms
• Performance profiling and capacity planning