Member of Technical Staff - Data Ingestion Engineer

Reflection's mission is to build open superintelligence and make it accessible to all. We're developing open weight models for individuals, agents, enterprises, and even nation states.

Requirements

• Experience building web crawling, data ingestion, or large-scale data acquisition systems using Ray, Beam, Spark, or similar technologies.
• Familiarity with how LLMs are trained and evaluated, and an intuition for what makes data useful for training
• Comfortable working with very large datasets (multi-TB to PB scale) and building systems that are observable, testable, and maintainable
• Excellent communication skills. You can explain system behavior. You consider and communicate tradeoffs clearly

Benefits

• Top-tier compensation
• Health & wellness
• Life & family
• Benefits & balance