AI, Backend and Fullstack Development for Business

I design and build AI, backend, and fullstack solutions: from enterprise systems and microservices to multi-agent applications, RAG systems, and production infrastructure. 20+ years of engineering experience help me adopt new technologies quickly without losing quality, architectural consistency, or business-process awareness.

What I Do

I design and deliver AI, backend, and fullstack products: from business requirements to production

AI Solutions & Agents

  • Multi-agent applications and agentic workflows
  • RAG systems, vector search, and knowledge bases
  • LLM integration, tool calling, and business instructions

Backend & Architecture

  • High-load APIs (REST/gRPC/WebSocket)
  • Microservices, domain logic, authentication, and billing
  • Database design, patterns, and maintainable architecture

Fullstack Products

  • Customer portals and admin panels
  • SPA applications with Vue.js and React
  • Rapid MVPs and internal tools
  • Frontend, backend, data, and infrastructure connected end to end

Data & Integrations

  • ETL services and data preparation for AI
  • PostgreSQL, Vector DB, Redis, RabbitMQ, Temporal
  • External API and enterprise-system integrations

Infrastructure & DevOps

  • CI/CD setup and automated deployment
  • Application containerization (Docker)
  • Monitoring and fault tolerance

Technical Leadership

  • Business requirements analysis and formalization
  • Architecture decisions and technical roadmaps
  • Code review, hiring, and backend team development

Key Directions and Technologies

A strong foundation in classical software engineering combined with hands-on experience in modern AI technologies

AI Engineering
  • AI Agents, agentic workflows, RAG, ETL for knowledge bases
  • LLM integrations: OpenRouter, OpenAI, Anthropic, Gemini, GigaChat, LiteLLM
  • Vector DB and semantic search: Qdrant, Weaviate, pgvector, Elasticsearch KNN
Backend, Fullstack & Architecture
  • Python, FastAPI, AsyncIO, SQLAlchemy ORM, SQLModel, Pydantic, REST/gRPC/WebSocket
  • PostgreSQL, MongoDB, Redis, RabbitMQ, Temporal, Alembic
  • React, Vue.js, TypeScript, Vite, SPA and SSR interfaces
Production, Processes & Leadership
  • Linux, Docker, Nginx, GitLab CI/CD, monitoring, logging
  • Enterprise systems, microservices, and integration architecture
  • Business analysis, specifications, code review, and team leadership

My Projects

AI, fullstack, and backend projects: from architecture and business logic to deployment and production

Beeline AI Agent

Multi-agent AI support system for Beeline with RAG and API integration

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Python FastAPI Pydantic-AI LLM RAG Postgres Weaviate SQLModel Redis Temporal React

Corporate Messenger

Messenger with web/desktop/mobile clients (Linux, Windows, Android) and an SDK for migrating Telegram bots

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Python FastAPI SQLModel JWT WS S3 Postgres RabbitMQ Vue.js Android Desktop Linux Windows

AI Landing Page Editor

AI-assisted generator and editor for single-page websites

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Python FastAPI Pydantic-AI LiteLLM OpenRouter Postgres RabbitMQ S3 Vue.js WebSocket

Encyclopedia with an AI bot

Fullstack aviation history encyclopedia with a RAG bot and semantic search

Learn more → View project →
Python FastAPI Postgres pgvector S3 JWT OAuth2 Vue.js Redis RabbitMQ Elasticsearch GigaChat

AI Kitchen Planner

Architecture and backend for a microservice AI kitchen planning application

Learn more → Project presentation →
Python FastAPI SqlA ORM WebSocket JWT Aiogram Postgres S3 RabbitMQ

AI Resume Service

Resume builder for graduates with an AI assistant

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Python FastAPI Jinja2 JWT Postgres Redis OpenAI API

Corporate ERP System

Client-server corporate information system with a full company business-process modeling lifecycle

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MSSQL .NET 4.8 C# WinForms Python FastAPI React PrimeReact Capacitor

API & Customer Portal

REST API and customer portal for a wholesale organization

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Golang Excelize html/template JWT MSSQL Redis

Broadcast Scheduler

Scheduling service for paid video broadcasts

Learn more → Project presentation →
Python Django DRF FastAPI Jinja2 PostgreSQL

Contact Me

Contact Information

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