Senior Data Scientist

Client of Envision Employment Solutions

Responsibilities:

• Design and develop end-to-end machine learning models, with a strong focus on NLP applications
• Fine-tune and deploy large language models such as GPT, BERT, and LLaMA for specific use cases
• Build, train, and evaluate deep learning models using TensorFlow, PyTorch, or Keras
• Implement Retrieval-Augmented Generation (RAG) and embedding-based semantic search solutions
• Develop and optimize transformer-based models for summarization, Q&A, and document intelligence tasks
• Evaluate and optimize prompt engineering strategies and context efficiency

Data Engineering & Pipelines

• Develop data pipelines using tools such as Airflow, Spark, or Dataiku
• Perform data wrangling and preprocessing using pandas and NumPy
• Design and manage feature stores
• Integrate and manage vector databases such as Pinecone, FAISS, or Chroma

Model Deployment & Production

• Build and maintain RESTful APIs for serving ML models in production
• Deploy scalable AI services and manage CI/CD pipelines
• Monitor model performance, drift detection, and lifecycle management
• Conduct A/B testing, ensemble blending, and apply explainability techniques such as SHAP and LIME

Statistical & Analytical Expertise

• Apply advanced statistics, probability theory, and experimental design
• Conduct hypothesis testing and data-driven analysis to support business decisions

Collaboration & Integration

• Work closely with product and engineering teams to embed AI solutions into production systems
• Collaborate with cross-functional stakeholders to deliver scalable AI capabilities