# Member of Technical Staff (Search Core, Indexing & Data Pipeline Stream)

**Company**: Perplexity
**Location**: Belgrade; Berlin; London; Remote
**Work arrangement**: remote
**Experience**: senior
**Job type**: Full time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://jobs.ashbyhq.com/perplexity/89750227-f7fe-4e9f-bcdd-eada353163fd?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_8ef9993d-4f6

## Description

Perplexity is looking for a highly skilled Expert Systems Engineer to join our Search Core team, specifically for the indexing and data processing stream. 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 build core search engine components, especially indexing pipelines, data storage formats that operate at the scale of billions of pages

- Develop streaming and batch data processing with YT 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

- 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

- Knowledge of Data processing systems (YT/Kafka/Hadoop)

- 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)

**Preferred Qualifications**

- Experience developing core components of search engines, databases, or information retrieval systems

- Understanding of search fundamentals: indexing, query parsing, ranking, and relevance

- Experience with trading systems or other latency-sensitive real-time systems

- Familiarity with cloud services, Kubernetes, and AWS infrastructure

## Skills

### Required
- systems programming
- Rust
- C++
- C
- Python
- data processing systems
- YT
- Kafka
- Hadoop
- algorithms
- data structures
- multithreading
- concurrency
- system-level optimization
- Linux internals
- low-level optimization techniques

### Nice to have
- search engines
- databases
- information retrieval systems
- search fundamentals
- cloud services
- Kubernetes
- AWS infrastructure

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Source: [Apply at jobs.ashbyhq.com](https://jobs.ashbyhq.com/perplexity/89750227-f7fe-4e9f-bcdd-eada353163fd?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)