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Member of Technical Staff (Search Engine Developer, Search Core)

Perplexity· Search
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Belgrade, London, BerlinFull-timePosted 11mo ago

About the role

Senior/Expert Systems Engineer for Perplexity's Search Core team, focused on building next-generation search products and foundational components in the tech stack.

Responsibilities

  • Design and build core search engine components, including indexing pipelines, retrieval algorithms, and ranking systems that operate at the scale of billions of pages
  • Develop streaming and batch data processing systems for search index construction in a high-load environment
  • Push the limits of hardware performance through low-level optimizations and systems-level tuning
  • Tackle challenges in multithreading, concurrency, and system-level optimization

Qualifications

  • 3+ years of hands-on experience in systems programming (Rust, C++, C, or similar)
  • Ownership of full project lifecycle — you don't just write a fast inner loop, you care about how the system is built, deployed, operated, and scaled in production
  • Knowledge of Python or other scripting languages
  • Passion for writing clean, efficient, and scalable systems-level code
  • Strong knowledge of algorithms and data structures, and the ability to apply them effectively
  • Deep understanding of multithreading, including various approaches, challenges, and trade-offs
  • Experience building high-load, distributed, and hardware-adjacent services
  • Solid understanding of Linux internals (syscalls, networking stack, memory model, kernel tuning)
  • Familiarity with low-level optimization techniques (memory management, cache efficiency, SIMD, profiling)

Skills

Required:Systems ProgrammingProgramming LanguagesMultithreading/ConcurrencyLinux Internals
Last updated Jul 15, 2026. Interested? Apply on the company site.

About Perplexity

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