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Photo of Daniil Pavlovich

$ whoami

Daniil Pavlovich

Fullstack Developer, Backend Developer, Python · FastAPI · Rust

Saint Petersburg

ProjectsContact

ls ~/stack

python/ rust/ typescript/ fastapi/ nextjs/ postgres/

cat experience.log

justdo — crm + wms for wb & ozon (2021—2023)

j-crypto — algo trading platform (2023—present)

open contacts --fast

tg @vispar_work · gh vispar-tech · spb utc+3

$ ls ~/stack: python/ rust/ typescript/ fastapi/ nextjs/ postgres/. $ cat experience.log: justdo — crm + wms for wb & ozon (2021—2023); j-crypto — algo trading platform (2023—present). $ open contacts --fast: tg @vispar_work · gh vispar-tech · spb utc+3

About me

Fullstack developer with over 4 years of commercial experience. I focus on backend-oriented fullstack work, architecture design, and high-load systems.

I work with distributed systems, real-time data processing, external API integrations, and asynchronous architecture. My core experience covers a suite of services for marketplaces and warehouse logistics (CRM + WMS) and an algorithmic crypto trading platform.

I also build my own open-source projects: crypto exchange client libraries published on PyPI and crates.io, plus automation tooling.

  • 4+years of commercial development
  • 3production systems shipped
  • 2marketplaces served: Wildberries, Ozon

Experience

  1. JUSTDO LLC

    Fullstack / Backend Developer

    Dec 2021 — Aug 2023

    Two core products of the company: a CRM for marketplace sellers and a WMS for warehouse logistics and fulfillment.

    • CRM for Wildberries and Ozon sellers: product, order, and inventory management; marketplace data sync; automation of routine workflows.
    • WMS: goods tracking, stock movements, order picking, and real-time operation.
    • Backend and frontend plus external API integrations: business logic, data synchronization, background jobs via queues.
    • Designed event-driven architecture and realtime updates; built a warehouse operator interface with live data.
    • Python
    • FastAPI
    • Django
    • DRF
    • Next.js
    • React
    • TypeScript
    • Celery
    • Taskiq
    • RabbitMQ
    • PostgreSQL
    • Redis
    • Docker
    • WebSocket
    JUSTDO LLC — preview

  2. Sagirov LLC

    Fullstack / Backend Developer

    Aug 2023 — Present

    Algorithmic crypto trading platform: trading bots, real-time market data, strategy backtesting, exchange connectivity via API.

    • Built the backend of the trading platform: streaming data processing and trading logic.
    • Developed the strategy execution system and exchange integrations.
    • Trading engines: a Python backend plus high-performance Rust modules for real-time data — market data aggregation, order execution, and a candlestick service publishing to Redis, RabbitMQ, and WebSocket.
    • Shipped a PyQt6 desktop app for market analysis and strategy backtesting.
    • Built a Telegram bot for managing trading accounts and strategies.
    • Python
    • Rust
    • FastAPI
    • WebSocket
    • Celery
    • RabbitMQ
    • PostgreSQL
    • Redis
    • Docker
    • PyQt6
    • aiogram
    Sagirov LLC — preview

Projects

Personal tools and open source on GitHub

aiotrade

Python

Async exchange API clients for 7 crypto exchanges in Python: session management, TTL cache, and 244+ API methods. Published on PyPI.

trade-sdk

Rust

Async trading API client in Rust for BingX and Bybit: connection pooling, TTL cache, and 48+ methods. Published on crates.io.

klines-streamer

Python

A Python service that streams market data from crypto exchange WebSocket APIs and aggregates trades into candlestick (kline) data at configurable intervals.

klines-streamer-rs

Rust

A Rust service that aggregates closed candles (klines) from multiple exchange trade streams: data normalization and publishing to Redis, RabbitMQ, and WebSocket.

openrot

Python

Local proxy rotator: one config defines profiles and nodes; traffic flows from Cloudflare WARP down the chain to the first alive node, auto-rotating when one dies.

rtwi

Python

Automatic sign-in to the Rostelecom commercial Wi-Fi captive portal (auth.wifi.rt.ru), with MAC roll when the portal blocks the device.

All repositories →

Stack

Languages

  • Python
  • Rust
  • TypeScript
  • JavaScript

Backend

  • FastAPI
  • Django
  • Django REST Framework
  • REST API
  • WebSocket
  • asyncio

Frontend

  • React
  • Next.js
  • PyQt6

Async & queues

  • Celery
  • Taskiq
  • RabbitMQ

Data

  • PostgreSQL
  • Redis
  • SQL
  • SQLAlchemy
  • pandas

Infrastructure

  • Docker
  • Linux
  • Nginx
  • CI/CD
  • event-driven architecture

Contacts

Open to job offers and interesting projects. Telegram is the fastest way to reach me.

Telegram@vispar_workGitHubgithub.com/vispar-tech