Senior Data Scientist

Envision Employment Solutions is currently looking for a Senior Data Scientist  for one of our partners, a global leader in the IT Services and IT Consulting.
Qualifications Bachelor’s or Master’s degree in Data Science, AI, or Computer Science .
4 to 6 years of experience is required, Strong record of production-grade ML/NLP projects .
Experience leading small data science teams or research initiatives.
 Technical Requirements Deep expertise in model architecture design , feature stores , and model monitoring .
Experience in ensemble blending , A/B testing , and model explainability (SHAP, LIME).
Builds and fine-tunes transformer-based models for custom tasks (summarization, Q&A, document intelligence).
Implements RAG (Retrieval-Augmented Generation) and embedding-based semantic search .
Integrates vector databases (Pinecone, FAISS, Chroma).
Uses LangChain or LlamaIndex for orchestration.
Evaluates and optimizes prompt templates and context length efficiency .
Designs data pipelines (Airflow, Spark, Dataiku).
Deploys scalable APIs , manages CI/CD , monitoring , and drift detection .
Works closely with product and engineering teams to embed AI in production systems.
Leadership & Soft Skills Leads small teams or workstreams.
Ensures project quality, deadlines, and alignment with business KPIs.
Coaches mid-level team members and contributes to talent development.