Staff Infrastructure Engineer - Cross-Platform Systems

Perplexity; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Perplexity is seeking an experienced Infrastructure Engineer to own and optimize cross-cutting production systems across compute, storage, networking, and data paths. You will drive architecture and operational excellence from design through production, collaborating with product, AI, and security teams.

You will shape infrastructure strategy, mentor peers, and push innovations across cloud platforms, Kubernetes, and data systems while improving performance and cost-efficiency at scale.

Qualifications

• 4+ years of professional software engineering experience building and operating production backend, platform, or distributed systems.
• Track record of owning complex production systems end to end and delivering sustained technical impact across teams.
• Ability to set technical direction, lead through influence, and raise the engineering bar through architecture, design reviews, and mentorship.
• Strong software engineering skills in Python or other systems or backend languages such as Go, Rust, C++, or Java.
• Meaningful experience across at least two infrastructure domains, such as cloud platforms, distributed systems, Kubernetes, storage, databases, networking, data systems, developer infrastructure, or production reliability.
• Ability to develop depth quickly in unfamiliar systems, reason across software and infrastructure layers, and drive production incidents from diagnosis through durable resolution.

Responsibilities

• Own cross-cutting infrastructure problems spanning compute, storage, networking, data, deployment, and reliability.
• Design, build, and operate distributed infrastructure supporting consumer, AI, and enterprise workloads.
• Identify gaps between platforms and build shared abstractions, automation, and tooling.
• Improve system performance, availability, scalability, and cost-efficiency across online and background workloads.
• Debug complex production issues across service and infrastructure boundaries and implement durable architectural fixes.
• Set technical direction for complex infrastructure systems and establish durable standards with partners.

Skills

Python

Go

Rust

C++

Java

Distributed systems

Tools

Kubernetes

Job description

Perplexity is seeking an experienced Infrastructure Engineer to own and optimize cross-cutting production systems across compute, storage, networking, and data paths. You will drive architecture and operational excellence from design through production, collaborating with product, AI, and security teams.

You will shape infrastructure strategy, mentor peers, and push innovations across cloud platforms, Kubernetes, and data systems while improving performance and cost-efficiency at scale.