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SmailsZX/README.md

👋 Hi, I'm Andrey Makarov

🐍 Python Backend / AI Developer

Irkutsk (UTC+8) · Junior+ · Open to remote and hybrid

Telegram Email GitHub

💡 Building backend services in Python

Async task queues · REST APIs · AI agents and RAG

Focus: reliability, observability, tests.

🛠 Technical Stack

🔧 Backend

Python FastAPI SQLAlchemy Pydantic

PostgreSQL Redis RabbitMQ MQTT

🤖 AI / ML

LangChain LangGraph Ollama PyTorch

ChromaDB OpenCV

⚙️ Infrastructure

Docker GitHub Actions Linux

Prometheus Structlog

🎨 Additional

TypeScript Next.js Playwright

🚀 Featured Projects

📦 async-task-queue

Distributed background task queue with fault tolerance

Problem: reliable background job processing without losing tasks on worker crashes

Implemented:

  • ✅ Retry with exponential backoff
  • ✅ Dead Letter Queue (tasks.dlq)
  • ✅ Timeout via TASK_TIMEOUT
  • ✅ Prometheus metrics (statuses, latency, retry count)
  • ✅ Rate limiting on Redis

FastAPI Taskiq RabbitMQ PostgreSQL

40 tests · CI/CD · Docker

🧠 chutye-quotes

In-memory store with memory optimization

Problem: ingesting a 340k-record snapshot (110 MB) under a 256 MB memory limit

Implemented:

  • ✅ JSON-string storage: 146 MiB instead of 237 MiB (–38%)
  • ✅ Streaming parser for 110 MB without loading into memory
  • ✅ Two-phase import with rollback
  • ✅ Circuit breaker + Retry-After
  • ✅ LRU eviction with TTL

FastAPI httpx orjson

50 tests · CI/CD · Docker

✅ task-tracker-api

REST API with JWT auth and CRUD

Implemented:

  • ✅ JWT (access + refresh) + bcrypt
  • ✅ SQLAlchemy 2.0 typed Mapped API
  • ✅ Alembic migrations
  • ✅ Each user sees only their own tasks

FastAPI SQLAlchemy PostgreSQL JWT

13 tests · CI/CD · Docker

💬 rag-telegram-bot

Local RAG pipeline — no cloud

Problem: answering questions from documents without sending data outside

Pipeline: PDF → chunks → embeddings → ChromaDB → top-3 → Qwen2.5

aiogram LangChain ChromaDB Ollama

10 tests · CI/CD · Docker

🤖 ai-agent-langchain

ReAct agent on LangGraph with tool use

What it does: the LLM decides which tool to call

Tools: calculator · weather · RAG search

LangGraph LangChain Streamlit Ollama

9 tests · CI/CD

🔍 thermal-diagnosis

Neural diagnostics for electrical equipment

What it does: thermal image classification — NORMAL / OVERHEAT / FAULT

Accuracy: ~85–90% on validation

PyTorch OpenCV scikit-learn

14 tests · CI/CD · Docker

🔧 Open Source

🌿 hololinked — Collaborator

Python framework for data acquisition and IoT

  • PR #191 (merged): attribute docstrings below property definitions — AST parser in ThingMeta. Explicit doc="..." wins; graceful fallback for REPL/notebooks. 4 tests.

  • PR #200 (merged): MQTT WebSocket transport for publisher and consumer. TLS-enabled WebSocket listener, wss:// / ws:// TD forms. 2 e2e tests.

  • PR #205 (merged): MQTT v5 content type from properties in consumer. Safe getattr fallback for paho/aiomqtt. Bumped version to 0.4.2.

Merged into main, included in releases v0.4.1 and v0.4.2.

PR #191 PR #200 PR #205

📊 GitHub Stats

📫 Get in Touch

Telegram Email GitHub

💼 Open to opportunities

Python Backend / AI Developer (Junior+ / Middle)

Remote · Hybrid · Relocation

⭐ If you find my projects useful — give them a star!

Pinned Loading

  1. ai-agent-langchain ai-agent-langchain Public

    ReAct-агент на LangGraph с tool use (калькулятор, погода, RAG-поиск). LangChain + Streamlit + Ollama.

    Python

  2. async-task-queue async-task-queue Public

    Асинхронная очередь фоновых задач. Retry с экспоненциальной задержкой, DLQ, Prometheus-метрики, rate limiting. FastAPI + Taskiq + RabbitMQ + Redis + PostgreSQL.

    Python

  3. chutye-quotes chutye-quotes Public

    Витрина цитат с LRU-эвикцией, circuit breaker и потоковым парсером до 110 МБ. FastAPI + httpx + orjson.

    Python

  4. rag-telegram-bot rag-telegram-bot Public

    RAG Telegram bot with local LLM (Ollama + LangChain + ChromaDB)

    Python

  5. task-tracker-api task-tracker-api Public

    REST API for task management — FastAPI + PostgreSQL + JWT + Docker

    Python

  6. thermal-diagnosis thermal-diagnosis Public

    Нейросетевая диагностика электрооборудования по термограммам. Определяет: НОРМА / ПЕРЕГРЕВ / НЕИСПРАВНОСТЬ

    Python