onsite
Senior Data Scientist – Generative AI / RAG / NLP
Senior Data Scientist – Generative AI / RAG / NLP
The Senior Data Scientist will design RAG strategies and evaluations, conducting experiments across Compass/Databricks with MLflow tracking. This role requires expertise in Generative AI, RAG, and NLP, along with strong skills in Python, PySpark, Databricks, and various evaluation methodologies.
About the role
About the Role
REACH Digital is seeking a highly skilled Senior Data Scientist with expertise in Generative AI, RAG (Retrieval Augmented Generation), and NLP (Natural Language Processing) to join our team in Abu Dhabi.
Responsibilities
- Design RAG strategy and evaluation methodologies.
- Conduct experiments across Compass/Databricks with MLflow tracking.
Requirements
Experience
- Minimum of 4+ years of experience in Data Science/Machine Learning, with at least 2+ years specifically in NLP/RAG.
Qualifications
- A BSc is required, and an MSc in Machine Learning or Statistics is preferred.
Specific Skills
- Proficiency in Python, PySpark, and Databricks.
- Experience with embeddings & retrieval (e.g., Azure AI Search).
- Knowledge of chunking/OCR techniques.
- Ability to perform prompt/guardrail tuning.
- Expertise in offline/online evaluation methods (e.g., precision@k, nDCG, toxicity/PII checks).
- Familiarity with A/B testing & telemetry.
- Proficiency in model comparison via MLflow.
Skills
PythonPysparkDatabricksEmbeddingsretrievalAzure AI SearchchunkingOCRprompt tuningguardrail tuningoffline evaluationonline evaluationprecision@knDCGtoxicity checksPII checksA/B TestingtelemetryMlflowGenerative AiRagNlp