Perplexity is looking for a highly skilled Senior or Expert Java 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

• Design and implement new core search components, including a high-load ranking service, a distributed search coordination layer, and a fast-updating master data storage system.
• Build and optimize streaming and batch data processing subsystems for analytics and search index creation.
• Integrate with data science solutions for search index data analysis.
• Push the limits of hardware performance.
• Solve challenges in JVM tuning, concurrency, and system-level performance optimization.
• Optimize subsystems for reliable and consistent data replication within the core search stack.

Qualifications

• 5+ years of hands-on experience in Java development.
• Deep understanding of JVM internals and performance tuning.
• Knowledge of Python or other scripting languages.
• Passion for writing clean, efficient, and scalable Java code.
• Strong knowledge of algorithms and data structures, with 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.

Final offer amounts are determined by multiple factors, including experience and expertise.

Equity: In addition to the base salary, equity may be part of the total compensation package.

Benefits: Comprehensive health, dental, and vision insurance for you and your dependents. Includes a 401(k) plan.