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Senior Backend/infrastructure Engineer

· Job Posted February 21, 2026
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Job Description

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.

Job Responsibility

  • Build and maintain robust, scalable infrastructure to support high-performance search systems
  • Develop internal tools and automation to streamline developer workflows and operational efficiency
  • Design, deploy, and operate cloud-native systems, primarily on AWS
  • Improve and support CI/CD pipelines, testing infrastructure, and release processes
  • Debug and optimize Linux systems, containers, and backend services
  • Contribute directly to product codebases, working across Python, Go, and other systems languages

Requirements

  • Strong background in cloud infrastructure (AWS preferred), systems design, and automation
  • Deep understanding of Linux internals, performance tuning, and debugging
  • Experience building or maintaining CI/CD systems and tooling
  • Strong Python skills and fluency in at least one systems language (Go, Rust, C/C++, or Java)
  • Comfort working across both infrastructure and application-level code
  • A proactive learner who thrives in a fast-paced, innovative environment

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