Senior Data Scientist / Machine Learning Engineer, NLP - 1635

City: Las Vegas, NV / Calabasas, CA <\/span>
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Onsite/ Hybrid/ Remote: Onsite 4 days a week <\/span>
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Duration: 6 months <\/span>
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Work Authorization: <\/b><\/span> GC, USC, All valid EADs except H1B, OPT, CPT
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Must Have: <\/b>
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• 4–6+ years of data science or machine learning experience
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• NLP classification for customer messages or call transcripts
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• Intent, topic, sentiment, and multi -label classification
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• Confidence scoring and model evaluation
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• Text cleaning, deduplication, speaker handling, and PII -safe processing
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• Trend and anomaly detection
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• Python, PySpark, SQL, and pandas
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• Labeled dataset design and annotation workflows
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• Precision, recall, confusion matrix, and drift monitoring
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  Responsibilities: <\/b>
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  • Build and deploy NLP classification models for customer communications.
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  • Develop intent, topic, sentiment, and multi -label taxonomies.
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  • Clean and prepare transcript and message data for modeling.
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  • Handle short -text cases, duplicate records, system messages, and speaker identification.
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  • Build trend and anomaly detection methods using baselines, seasonality, and channel mix.
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  • Design maintainable Python and PySpark data pipelines.
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  • Define sampling strategies and annotation guidelines for labeled datasets.
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  • Support reviewer adjudication and dataset quality validation.
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  • Track model precision, recall, confusion patterns, confidence scores, and drift.
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  • Implement secure processing for customer communications containing sensitive data.
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    Qualifications: <\/b>
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    • 4–6+ years of relevant machine learning, NLP, or data science experience.
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    • Proven experience deploying NLP models into production.
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    • Strong experience with classification systems and text analytics.
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    • Advanced Python development and testing skills.
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    • Hands -on experience with PySpark, SQL, pandas, and scalable data pipelines.
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    • Experience creating and validating labeled datasets.
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    • Strong understanding of model evaluation, monitoring, and false -alert reduction.
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    • Experience working with governed or PII -bearing data.
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      Nice to Have: <\/b>
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      • Databricks
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      • Unity Catalog
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      • Databricks Workflows
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      • MLflow
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      • Model and data versioning
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      • Retrieval and embedding models
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      • LLM -assisted classification with evaluation and guardrails
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      • Contact -center or customer -support analytics
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      • Property -management or real -estate data experience
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