Switch to English?
Yes
Переключитись на українську?
Так
Переключиться на русскую?
Да
Przełączyć się na polską?
Tak
  1. Freelancers

Andrii Vasilyuk

Offer Andrii work on your next project.

Ukraine Kyiv, Ukraine
2 months 27 days back
Available for hire available for hire
age 29 years
on the service 7 years
  • symfony
  • sass
  • Phyton
  • MariaDB/MySQL/MSSQL/PostgreSQL
  • ReactJS / NextJS / Redux / MobX
  • Redis / PostgreSQL / MySQL
  • Vue.js
  • Node.js
Freelancer Andrii V. — Ukraine, Kyiv. Core skill — Web Programming, PHP

Rating

Successful projects
No data
Average rating
No data
Rating
215
Web Programming
2765 place out of 6421
PHP
802 place out of 1676

Language proficiency level

Українська Українська: fluent
Русский Русский: advanced
English English: upper-intermediate

Skills and abilities

Programming

Services

Writing

Portfolio


  • Arbitrage Analytics Platform — High-load analytics system

    Arbitrage Analytics Platform — High-load analytics system — example of freelancer's portfolio work in category
    Created a high-load analytical platform for the arbitration team in the Nutra, Gambling, and Finance verticals, processing over 1 million events daily from sources like Facebook, TikTok, and Google Ads.

    Integrated the platform with trackers (Voluum, Binom, Keitaro) and implemented Redis Pub/Sub for event processing in almost real-time, reducing data latency from 30+ minutes to less than 5 seconds.

    … Developed dynamic dashboards for tracking ROI, CTR, CR, and key performance indicators (KPI) of campaigns.

    Also created multilingual, geo-targeted landing pages with A/B testing, achieving up to 27% conversion, and optimized mobile speed to 90+ points in Google PageSpeed.
  • 200 USD

    Supportly Chat Widget — Real-time online support service

    Javascript and Typescript
    Supportly Chat Widget — Real-time online support service — example of freelancer's portfolio work in category Javascript and Typescript
    Developed a modern support chat widget for integration on client websites, which provides real-time messaging between users and support agents.

    The frontend is implemented in React using TypeScript and Styled Components. It includes features like live chat, typing indicators, file attachments, and anonymous sessions.

    … The backend is built on Node.js (Express) using WebSocket (Socket.io) for instant data exchange, MongoDB for information storage, and JWT authentication. An admin panel for moderating chats and viewing conversation history has also been implemented.
  • 5000 USD

    Automated crypto trading bot — MEXC / Binance Futures

    AI & Machine Learning
    Automated crypto trading bot — MEXC / Binance Futures — example of freelancer's portfolio work in category AI & Machine Learning
    Developed an automated trading bot for futures markets on MEXC and Binance, designed to execute a simple quantitative strategy with flexible risk management.

    The bot is implemented in Python using ccxt for API integration, ta-lib for technical indicators, pandas for data processing, and APScheduler for scheduling execution.

    … The system dynamically calculates position sizes based on balance, sets leverage, and places stop-loss / take-profit orders according to specified risk parameters. Telegram notifications have also been added for reports on all trading operations and balance updates.

    ⸻

Activity

  Latest proposals 2
Development of a trading script. Personal project
Application for tracking working hours and protocols
1101 USD