Kevin Perez-Espinoza

Experience

Work

AI Engineer, Cognizant Technology Solutions

Teaneck, New Jersey · January 2026 – Present

  • Developed Python automation that reduced manual validation effort by 70% and improved metadata-processing efficiency by 50%.
  • Supported the migration, validation, and transformation of more than 10,000 metadata assets from Collibra to Alation, achieving over 95% data accuracy through automated quality assurance.
  • Worked with Python, SQL, REST APIs, data profiling, and validation workflows.
  • Collaborated with data governance, analytics, and AI teams.

Skills

AI and LLMs
LLM applications, retrieval-augmented generation (RAG), LangChain, LangGraph, OpenAI API, AWS Bedrock, semantic search, vector embeddings, prompt-based workflows
Programming and backend
Python, SQL, Java, JavaScript, FastAPI, REST APIs
Data and infrastructure
ChromaDB, Supabase, Amazon S3, Pandas, NumPy, Sentence Transformers, LangSmith
Data governance
Data quality, data profiling, metadata management, data lineage, Collibra, Alation
Tools
Git and GitHub

Education

B.S. in Computer Science

Rider University · 2024