Yaroslav L.

PYTHON AI ENGINEER | LLM, RAG & BACKEND DEVELOPMENT I’m a Python AI Engineer with 4.5+ years of professional experience specializing in AI/LLM applications, RAG systems, backend development, and data-intensive solutions. I help businesses turn AI ideas into reliable, production-ready applications — from designing the architecture and data pipelines to integrating LLMs and deploying the final service. WHAT I CAN HELP YOU BUILD 🤖 AI & LLM APPLICATIONS • LLM-powered applications and AI assistants • RAG (Retrieval-Augmented Generation) systems • Multi-step AI workflows and agents • Document analysis and knowledge-based AI • LLM-powered image and text analysis • Self-hosted LLM solutions ⚙️ PYTHON BACKEND DEVELOPMENT • FastAPI & Flask applications • REST APIs and backend services • PostgreSQL database design and integration • Data processing and ETL pipelines • Scalable application architecture 🔎 RAG & VECTOR SEARCH • ChromaDB • Pinecone • pgvector • Document processing and retrieval pipelines • Embeddings and semantic search ☁️ CLOUD & INFRASTRUCTURE • AWS • Docker • Serverless architectures • Cloud application integration 📊 DATA & SCIENTIFIC COMPUTING • NumPy • SciPy • Pandas • OpenCV RECENT AI EXPERIENCE In my current role as a Python AI Engineer, I’ve worked on: • A regulation compliance service using RAG and self-hosted LLMs • Construction-site safety analysis using image analysis, LLMs, and OSHA regulations • A deep business analysis platform for consulting companies based on multi-step AI workflows Previously, I developed ETL pipelines, backend systems, AI assistant services, ML-powered applications, and web applications using Python, FastAPI, Flask, React, and AWS. MY APPROACH I care about more than just making the code work. I focus on understanding the business problem, choosing the right technology, building maintainable solutions, and delivering what the client actually needs. I’m comfortable working independently or as part of an existing engineering team, and I’m used to learning new technologies when a project requires them. If you’re looking for someone who can combine solid Python engineering with practical AI/LLM expertise, feel free to reach out. I’d be happy to discuss your project and suggest an appropriate technical approach.