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

Denis S.

Offer Denis work on your next project.

Ukraine Dnepr, Ukraine
6 months 16 days back
Available for hire available for hire
on the service 1 year
  • web developer
  • telegram bot

Rating

Successful projects
No data
Average rating
No data
Rating
135
Python
1681 place out of 4457
Databases & SQL
494 place out of 1203

Skills and abilities

Programming

Portfolio


  • 68 USD

    Testing of the educational platform

    Testing & QA
    Writing test cases, bug reports. Usability testing
  • Cars and spare parts MySQL database

    Databases & SQL
    Database of KIA cars and original spare parts in MySQL. As a result, a database, drawings, web interface (php scripts + sql queries), search by VIN, search by part number. To improve understanding of the database structure, a database schema has been created.
  • 1015 USD

    Candlestick Dashboard on Django, Dash, and Flask

    Python
    This project is a web application developed on the basis of Dash and Flask, which allows users to display interactive charts for financial data analysis. The main goal of the project is to provide a convenient tool for working with market data, including candlestick analysis, asset correlation, and data collection from the OKX exchange.

    Key features

    1. Dynamic candlestick chart

    The user can select a currency pair and timeframe.

    Data is loaded from the database and displayed as a candlestick chart.

    Automatic chart updates are supported when parameters change.

    2. Asset correlation chart

    The correlation coefficient between currency pairs is calculated.

    A table of pairs with a coefficient above a specified level is displayed.

    The ability to mark pairs with checkboxes and build their chart.

    Automatic assignment of different colors for visual differentiation of pairs on the chart.

    3. Registration and authorization (Flask)

    A user system is implemented through Flask.

    Access to chart pages is only available for authorized users.

    A JWT token is used for session security.

    4. Working with the OKX exchange API

    a) Parser for collecting new candles

    Works in real-time, collecting data for 75 currency pairs with a capitalization of over 1 billion.

    Automatically updates the database with new candles.

    b) Parser for historical data

    Allows loading data for a specified period.

    The possibility of adding other exchanges in the future is supported.

    Technologies and tools

    Django – backend framework and database management.

    Dash/Plotly – interactive charts.

    Flask – user authentication (registration, login, access control).

    Pandas – data processing.

    SQLite/PostgreSQL – data storage.

    OKX API – source of market data.
  • 90 USD

    Bot for Pizzeria

    Bot Development
    Bot functionality:
    -The bot provides a menu catalog from the database
    -After placing an order, the request goes to the group
    -Implemented in two languages: Ukrainian and English
    -Added mailing to users
    -Added "Feedback" where the user can write to the operator for clarification.
  • 147 USD

    CRM for builders | Employee accounting and reporting

    Python
    Project creation system -> tasks for employees, with descriptions and photo instructions, which are sent via Telegram, deadlines for submission and reminders, notifications of non-compliance to the administrator. Web interface for viewing reports and creating tasks (templates for quick creation)

Activity

  Latest proposals 9
Telegram bot for ordering homemade dishes by days of the week
300 USD
Зробити Upgrade скрипта на Python. Редагування відео
113 USD
Development of a Telegram Bot
291 USD
Telegram Bot
180 USD
Development of a Telegram bot for signing petitions via Diia.Signature
451 USD
Simple Telegram bot for using Chat GPT
41 USD
Parser servicelocalpro.com
43 USD
Telegram bot for pizza delivery
110 USD
Telegram bot
113 USD