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Perplexity Logo Perplexity · IT - Software Development

Senior C++ Developer - Search Core

· Job Posted February 21, 2026
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Job Description

Perplexity is looking for a highly skilled Senior or Expert C++ Developer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack.

Job Responsibility

  • Develop new types of search index storage, including streaming and batch data processing systems in a high-load environment capable of handling billions of pages
  • Build new core search components, including algorithms for efficient retrieval and ranking
  • Push the limits of hardware performance
  • Tackle challenges in multithreading, concurrency, and system-level optimization
  • Optimize subsystems for reliable and consistent data replication within the core search stack

Requirements

  • 5+ years of hands-on experience in C++ development
  • Knowledge of Python or other scripting languages
  • Passion for writing clean, efficient, and scalable C++ 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
  • Expertise in real-time systems development

Nice to have

  • Experience developing core components of search engines, trading systems, or database systems
  • Familiarity with cloud services, Kubernetes (k8s), and AWS infrastructure
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