Perplexity is looking for a Senior Infrastructure Engineer to join our small team revolutionizing the way people search and interact with the internet. Your passion and diligence will be critical to ensure a high quality product. This role blends infrastructure expertise with software engineering -- you'll own core systems that power our products and development workflows. ResponsibilitiesBuild and maintain robust, scalable infrastructure to support high-performance search systemsDevelop internal tools and automation to streamline developer workflows and operational efficiencyDesign, deploy, and operate cloud-native systems, primarily on AWSImprove and support CI/CD pipelines, testing infrastructure, and release processesDebug and optimize Linux systems, containers, and backend servicesContribute directly to product codebases, working across Python, Go, and other systems languagesRequirementsStrong background in cloud infrastructure (AWS preferred), systems design, and automationDeep understanding of Linux internals, performance tuning, and debuggingExperience building or maintaining CI/CD systems and toolingStrong Python skills and fluency in at least one systems language (Go, Rust, C/C++, or Java)Comfort working across both infrastructure and application-level codeA proactive learner who thrives in a fast-paced, innovative environment