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Roman Lotsman

@romanlotsman1

Senior Software Engineer at EPAM Systems, integrating LLMs, RAG, and AI agents into production-ready applications.

At EPAM Systems, I design and deliver backend platforms, cloud-native microservices, and AI-powered applications using Python, FastAPI, Node.js, and AWS. I’ve integrated machine learning, large language models, RAG, and AI agents into production-ready solutions.

I’ve also worked on StatGPT, an AI-powered platform that provides natural-language access to statistical data, and AI DIAL, an enterprise platform for AI model integration and reusable applications. At SoftServe, I developed Python backend applications, REST APIs, and database systems.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

EPAM Systems

Aug 2022 - Present (4 years 2 months)

Designed and delivered scalable backend platforms, cloud-native microservices, and AI-powered applications using Python, FastAPI, Node.js, and AWS. Led technical development, improved system performance and reliability, and integrated machine learning, large language models, RAG, and AI agents into production-ready solutions.

Python fastAPI NodeJS AWS Machine Learning Large Language Models RAG AI Agents Microservices Cloud Native

Python/Backend Software Engineer

SoftServe

Oct 2019 - Jun 2022 (2 years 8 months)

Developed and optimized Python-based backend applications, RESTful APIs, and database systems using Django, Flask, FastAPI, and PostgreSQL. Built scalable microservices, automated deployment workflows, and collaborated with engineering teams to deliver reliable, high-performance software solutions.

Python Django Flask fastAPI PostgreSQL REST APIs Microservices Deployment Automation