Orestis Kaitezidis
Orestis Kaitezidis

Lead Applied Research Scientist

Open to offers · Member since 10 Oct 2026
Location
New York, United States
Desired salary
Unspecified
Work preference
Hybrid
Experience level
Lead

About

Professional summary

Applied research scientist and AI/ML engineer specializing in generative AI agents, LLM fine-tuning, RAG systems, forecasting, optimization, and enterprise supply chain applications.

Skills

14 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Data Stores

Languages & Frameworks

Monitoring

Experience

Career history

Lead Applied Research Scientist Coupa Software

Architected and led development of NAVI SCDP Modeler Assistant, a neurosymbolic agentic AI system for enterprise supply chain design. Designed multi-agent orchestration using LangGraph, MCP, and Pydantic; built hybrid dense and BM25 RAG systems; fine-tuned open-source LLMs using LoRA/QLoRA, DPO, and RFT; and established enterprise AI CI/CD and observability across AWS. Mentored scientists and drove technical hiring.

Senior Applied Research Scientist Coupa Software

Architected and scaled Coupa Demand Modeler for enterprise clients with more than one million time-series SKU/location combinations. Built a production forecasting engine using Python and PySpark with macroeconomic data ingestion, feature engineering, feature selection, and expanding-window backtesting across deep learning, machine learning, and classical forecasting models.

Applied Research Scientist Coupa Software

Developed probabilistic forecasting and global cross-learning architectures for new product introductions, along with explainable AI capabilities for safety-stock and service-level optimization.

Data Science Consultant Opex Analytics (Acquired by Coupa Software)

Developed production-grade probabilistic forecasting models using machine learning and external data features to optimize inventory decisions for a Fortune 500 CPG client's Amazon sales channel.

Data Science Intern Opex Analytics (Acquired by Coupa Software)

Developed production-grade probabilistic forecasting models using machine learning and external data features to optimize inventory decisions for a Fortune 500 CPG client's Amazon sales channel.

Education

Learning history

Georgia Institute of Technology

Master of Science, Analytics

GPA: 4.00/4.00

Aristotle University of Thessaloniki

Diploma (MSc. & BSc.), Electrical and Computer Engineering

GPA: 7.98/10.0; Top 5%

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