Roman Grasmurr
AI/ML & FullStack Developer based in Moscow
Senior Python Developer with 4+ years of experience building AI solutions and high-load web services. Specialized in developing agent systems with LLMs, RAG, and business process automation. Full-stack experience from creating responsive frontends to architecting scalable microservices. My tech stack: Python, FastAPI, LangChain, LangGraph, React, PostgreSQL, Weaviate, Docker, Chain-of-thought systems, and modern LLM orchestration.
Core Expertise
LLM & Agent Systems
Building multi-agent AI systems with GPT-4, Claude, and Gemini. RAG implementation for enterprise knowledge bases
Python & FastAPI
High-load backend services with FastAPI, Flask. Microservices architecture with gRPC and Docker/Kubernetes
Machine Learning
NLP, conversational AI, prompt engineering, and model fine-tuning. Vector databases (FAISS, Milvus, Pinecone)
Full-Stack Development
Experience with React, PostgreSQL, AWS (S3, EC2), CI/CD pipelines. Mentoring and hiring specialists
Python Development
Expert in Python, FastAPI, Flask. Building high-load backend services and microservices
LLM & Agent Systems
Multi-agent AI systems with GPT-4, Claude, Gemini. LangChain and LangGraph orchestration
RAG Systems
Retrieval-Augmented Generation with vector databases: FAISS, Milvus, Pinecone
Machine Learning
NLP, conversational AI, prompt engineering, model fine-tuning with Hugging Face
Backend Architecture
PostgreSQL, gRPC, Docker, Kubernetes. Microservices handling 300+ req/sec
Cloud & DevOps
AWS (S3, EC2), CI/CD pipelines, infrastructure automation
Frontend Development
React, modern JavaScript. Building responsive interfaces and API integrations
Mentoring & Hiring
Mentored junior developers, helping them grow professionally. Conducted 50+ technical interviews during my career
Prompt Engineering
Optimizing LLM outputs, chain-of-thought, few-shot learning techniques
Vector Databases
FAISS, Milvus, Pinecone for semantic search and similarity matching
Process Automation
Automated workflows saving 1000+ hours/quarter. Reduced manual work by 80%
Currently, I work as Senior ML Developer, building AI-powered solutions for enterprise clients across multiple industries.
I create intelligent systems that automate business processes, analyze data, and provide instant access to knowledge through natural language interfaces.
If you'd like to learn more about my AI/ML development approach, !
Portfolio
A collection of my projects, articles, and creative work
AI-Powered ERP System
Enterprise resource planning system with AI automation for inventory management, forecasting, and workflow optimization.
Multi-Country CRM
Customer relationship management system deployed across 8 EU countries with multi-language support and regional customization.
Internal Dev Tools
Suite of developer productivity tools including code generators, deployment automation, and team collaboration features.
Real-time Analytics Dashboard
Interactive dashboard for monitoring business metrics across multiple locations with real-time data visualization.
AI Chat Assistant
Intelligent customer service chatbot integrated with ERP system for automated query resolution.
Team Collaboration Platform
Internal platform for cross-country team coordination, project management, and knowledge sharing.
Professional Experience
Middle to Senior ML Developer
SakhaVision
Built AI lawyer for legal research and consultation. Developed storage and search system for 300K+ federal and regional legal acts. Built from scratch a large document processing system (up to 100 pages) with optimized vector search. Designed RAG system with response quality matching 3-5 year experienced lawyer. Deployed solution in Kubernetes cluster with detailed logging. Technologies: LangChain, LangGraph, GPT-4, Claude, FAISS, Weaviate, FastAPI, Kubernetes.
Full Stack Developer
Freelance
Full-stack website development from scratch with complete delivery. Built CRM systems with Telegram and Slack bot integrations. Implemented Google Docs API integrations and third-party service connections. Ranked websites to first page of search results using modern web technologies.
Middle Full Stack Developer
Loyalty Startup
Built loyalty platform MVP in 4 months (150K monthly users across 25 venues). Developed backend architecture and AWS deployment. Worked in team of 3 developers on full-stack features.
Backend Developer
Yandex
Worked in Yandex.Market team on product moderation system. Developed product filtering and selection system that allows publishing only products that passed expert review and approval. Worked with PostgreSQL and microservices architecture.
Go Backend Developer
Wildberries
Worked in defective goods accounting department with Go and microservices architecture. Developed high-performance backend services for processing and storing video and photo materials of defective products, defect cataloging systems. Worked with gRPC and distributed systems.
HSE Student Activities
Higher School of Economics
Created Telegram and Slack bots for hackathons and startup events (500+ participants, reduced manual work by 80%). The CRM I built is still used for issuing and tracking event participant tickets.
Let's get in touch?
The easiest way to contact me is via Telegram: @Grasmurr or email at Grasmurr@gmail.com.
Built with love and Vue.js & Nuxt.js in 2025