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  1. Freelancers

Sergey Voytov

Offer Sergey work on your next project.

Ukraine Odessa, Ukraine
11 minutes back
Available for hire available for hire
5 proposals made
on the service 1 year
Freelancer Sergey V. — Ukraine, Odessa. Core skill — Python, 3D Modeling

Rating

Successful projects
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Average rating
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Rating
426
Python 1
309 place out of 4511
3D Modeling
450 place out of 3561

Skills and abilities

Programming

Services

Portfolio


  • 178 USD

    Telegram bot "Diary"

    Bot Development
    Telegram bot
    Multiplayer Telegram bot-planner. The user writes tasks in plain text ("tomorrow at 3 PM meeting with the doctor"), and the bot uses AI (Gemini) to recognize the date, time, and recurrence, and saves the task.

    Capabilities:
    • creation of tasks in free text (recognition via LLM, confirmation with buttons);
    … • view by day and period, with separation of "upcoming / past";
    • recurring tasks — daily / weekly / monthly;
    • reminders N minutes before the event + morning digest;
    • editing and deleting with context (edits like "at 10" or "and also walk the dog");
    • individual time zone for each user (time is stored in UTC)
    Stack and practices:
    Python, aiogram 3 (async), SQLAlchemy (async) + SQLite, Gemini API, APScheduler.
    86 autotests (pytest), CI on GitHub Actions, deployed 24/7 on a cloud Linux VM (systemd).

    #python #telegrambot #aiogram #backend #sqlalchemy #gemini #ai #llm #asyncio #pytest #devops #api
  • 178 USD

    Demo of double-entry accounting — Streamlit + SQLite + Docker, with tests

    Python
    Demo of double-entry accounting — Streamlit + SQLite + Docker, with tests — example of freelancer's portfolio work in category Python
    Minimal web application for accounting (double entry).

    Functionality:
    • 4 types of documents: invoices and payments
    … • Immutable log + reversals
    • P&L report + partner balances AR/AP
    • 5 UI pages

    Stack: Python 3.11, Streamlit, SQLite, Docker, pytest.
    Quality: 56 tests (TDD), Decimal precision, threading-safe.
    Included: design spec, implementation plan, README, run.bat.

    Demo: https://github.com/diffary/jito.test_work
  • 89 USD

    Resource Calculator — Full-Stack Web App

    Python
    Resource Calculator — Full-Stack Web App — example of freelancer's portfolio work in category Python
    Resource Calculator — Full-Stack Web App
    Built a crafting calculator with FastAPI backend and React frontend. Features include recipe management, batch resource calculation with surplus tracking, cycle detection, and crafting tree visualization. Tech: Python, FastAPI, React, TypeScript.

  • Multitool — Desktop Game Companion App

    Python
    Multitool — Desktop Game Companion App — example of freelancer's portfolio work in category Python
    Multitool — Desktop Game Companion App
    Built a full-stack Electron desktop app for the game Stalcraft. Features include real-time auction price monitoring with charts, clan & tournament management (Swiss/Double Elimination brackets), item cost calculator, and price collection scripts from external APIs. Tech: Nuxt 3, Vue, TypeScript, Prisma, SQLite, Electron, TailwindCSS.

Activity

  Latest proposals 5
Telegram bot for auto service
178 USD
Creation of an AI assistant for communication with Clients
89 USD
Vibe coding through Claude Code
345 USD
Improve the performance of Claude Code and work on software development.
78 USD
Creation of a multifunctional bot in Telegram
27 USD