Machine Learning Research Scientist

SENTRA, INC.
San Francisco, CA, United States
19 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
5 years minimum
Compensation
$150,000.0 - $300,000.0
Working hours
Regular working hours

Tech stack

Artificial Intelligence Artificial Neural Networks Learning Management Systems Data Structures Programming Tools Distributed Systems Graph Database Information Extraction Information Theory Python (Programming Language) Machine Learning Natural Language Processing
+11 more
Neo4j Open Source Technology Query Optimization Tensorflow Systems Architecture Scripting Pytorch Large Language Models Knowledge Representation Machine Learning Operations Stream Processing

Job description

  • 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.
  • Research lossy semantic compression using information-theoretic principles to condense event streams into query-relevant long-term memory.
  • Design entity resolution systems handling identity evolution where entities merge, split, and transform through time.
  • Build meta-learning systems that identify organizational patterns and recognize when current situations match historical success or failure indicators.
  • Develop privacy-preserving cross-organizational learning using federated learning and differential privacy techniques.
  • Publish research findings and contribute to the broader research community on knowledge graphs and organizational intelligence., * Graph databases (Neo4j, TigerGraph, Neptune) and query optimization for large-scale graphs.
  • Information theory, compression, or temporal data structures.
  • Causal inference, probabilistic reasoning, or Bayesian methods.
  • Distributed systems, stream processing, or real-time ML serving.
  • Human memory and cognition models.
  • Privacy-preserving ML (federated learning, differential privacy, secure multi-party computation).
  • Enterprise AI systems, workflow automation, or organizational software.
  • Publications at top-tier conferences (NeurIPS, ICML, ICLR, KDD, EMNLP, ACL, WWW, SOSP, OSDI).

Requirements

  • 5+ years building novel systems in machine learning, NLP, knowledge graphs, or related areas with evidence through publications, production implementations, or significant open-source contributions.
  • Deep knowledge of knowledge graphs, graph neural networks, or temporal reasoning demonstrated through shipped systems and architectural exploration.
  • Strong ML and NLP foundation, particularly in information extraction, entity resolution, or semantic representation.
  • Proficiency in Python and modern ML frameworks (PyTorch preferred) with experience deploying models at scale.
  • Track record of publishing research (conference papers, technical blog posts, or detailed technical documentation) and exploring novel architectures.
  • Ability to move between theoretical investigation and practical implementation, shipping research into production., Algorithms, Apple MacBook, Artificial Intelligence (AI), Bayesian Networks, Blog, Budgeting, Conferences, Create Graphs, Data Quality, Distributed Computing, Health Plan, Knowledge Representation, Machine Learning, Memory Hardware, Natural Language Processing (NLP), Neo4j, Neural Networks, Open Source, Organizational Learning, Pro Tools, Programming Tools, Publications, Python Programming/Scripting Language, Query Optimization, Scientific Research, System Architecture, Systems Maintenance, Technical Writing

Benefits & conditions

  • Base Salary: $150,000 - $300,000
  • Equity: 0.3% - 2% depending on level
  • Comprehensive Health Coverage: Medical, dental, and vision
  • Wellness & Productivity Stipend: $2,500/month to cover meals, transport, gym memberships, or other personal productivity needs
  • Hardware & Tools: Latest MacBook Pro and AI development tools (ChatGPT Pro, Claude Pro, Cursor, etc.)
  • Learning & Growth: Dedicated budget for conferences, courses, and professional development
  • Relocation Support: Available for on-site hires
  • Flexible Time Off Policy

Total estimated annual benefits package: ~$30K-$35K in addition to base and equity.

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