Senior C++ Developer - Search Core (London, Belgrade, Berlin)

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.

Responsibilities

• 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

Qualifications

• 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

Preferred Qualifications

• Experience developing core components of search engines, trading systems, or database systems

• Familiarity with cloud services, Kubernetes (k8s), and AWS infrastructure