Machine Learning Research Scientist
Sentra, San Francisco / Bay Area
About the job
Position overview
Sentra is building organizational superintelligence through memory infrastructure that reasons across time, causality, and context. As a Research Scientist, you will tackle fundamental problems in knowledge representation, temporal reasoning, and semantic compression. You will design and implement systems that maintain execution state for entire organizations, consolidate millions of micro-events into durable knowledge, and learn patterns that predict events before it happens.
Key responsibilities
- Build LLM-powered information extraction pipelines that process unstructured communications and text data into structured entity-relationship representations.
- Develop memory consolidation algorithms that validate information through multiple observations, merge duplicate entities, and prune ephemeral data.
- Design temporal knowledge graph architectures that model organizational execution state as living, continuously updated systems rather than static records.
- Create graph attention mechanisms and reasoning systems for complex causal queries about blockers, dependencies, and outcome patterns.