Senior Backend/Infrastructure Engineer

14 hours ago


Belgrade, Central Serbia Perplexity Full time €40,000 - €80,000 per year

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. 

Responsibilities

  • 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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