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Mikola Yefremov

Offer Mikola to work on your next project.

Ukraine Borispol, Ukraine
2 days 22 hours ago
Available for hire available for hire
15 Safe completed
7 months 9 days ago
15 Clients
added 2 bids
age 41 years
registered for 7 years

Rating

Successful projects
88%
Average rating
6.7 of 10
Rating
1726
C#
6 projects
C#
4 projects
Bot development
2 projects
Blockchain
2 projects
Application programming

Skills


Architecture

Outsourcing & consulting


Translation

Portfolio


  • Mobile Chat App

    C#
    The chat system from zero. It is fully developed by me including backend and frontend. Send videos, files, automatization of payments.
  • DEX Arbitration Bot (Direct Blockchain Interop)

    C#
    DEX Arbitrage bot including:
    1 . The main app.
    2nd Execution modules (Work on several servers in parallel)
    Three Samart Contract for Swap Execution
  • Bott to execute the transaction on binance. for several accounts.

    C#
    The main functions:
    Create a database structure that will store all the entities involved in the operations.
    - sending and receiving the application for the transaction (buy/sell) with crypto-grow through the protocol via the internet (signals) - implemented through the built-in DLL
    - organization of the input and editing interface of the necessary data for the BD, as well as viewing logs and results of the application work
    Execution of market transactions by orders on the specified accounts in the amount counted according to the coefficient
  • 89 USD

    Monitoring of the status of sites

    C#
    The program works in three. Monitoring the availability of sites, the line of domain action, the Google index.
  • 102 USD

    Intergovernmental and Intergovernmental Arbitration Board.

    C#
    The arbitration bot scans the exchanges and seeks where cheaper to buy and cheaper to sell cryptocurrencies. You can automatically make a purchase order.

Reviews and compliments on completed projects 15 1

Quality
Professionalism
Price
Availability
Terms

He did not enter the deadline, he constantly translated the deadlines to the last minute. The product was not seen and nothing was not tested.

Quality
Professionalism
Price
Availability
Terms

The project is completed in 1 day. I couldn’t find a good artist for a long time. We will continue to work.

1 February 2023 306 USD
Creating an automated program

Quality
Professionalism
Price
Availability
Terms

A good specialist! I recommend

Taras Vasyunyk | Personal

19 December 2022 511 USD
Implementation of the algorithm of automatic work on cryptocurrencies.

Quality
Professionalism
Price
Availability
Terms

The result of my work with Nicholas exceeded even my most bold expectations. Highest professionalism, creativity, responsibility and initiative. Many of the components of the project, improving the work of the system, he himself recommended and proposed. I am admired.

Quality
Professionalism
Price
Availability
Terms

I am very pleased that with my project I came to Mykola, who not only clearly fulfilled all the tasks, but also advised how it can still be improved. If you have a project linked to cryptocurrency exchanges then I strongly recommend choosing Mykola as an executive.

20 July 2022 102 USD
BOT

Quality
Professionalism
Price
Availability
Terms

I worked well with Nicholas.
It’s clear, fast.
I recommend

17 May 2022 128 USD
Bot for Binance.

Quality
Professionalism
Price
Availability
Terms

completed in time. Thank you for great cooperation.
We will test and adjust if necessary.

Quality
Professionalism
Price
Availability
Terms

Thank you for best job +10

****************************************************

30 April 2022 128 USD
Создать трейдинг бот для биржи Bybit

Quality
Professionalism
Price
Availability
Terms

It’s quick and quality, thank you.

12 April 2022 38 USD
Bott Binance Futures through API

Quality
Professionalism
Price
Availability
Terms

The project is done greatly! I didn’t expect it to be so fast and without touch. Made strongly! The luck.

Quality
Professionalism
Price
Availability
Terms

Thanks to Nicole, I am pleased with the work.

Profile deleted | Safe Safe | Response feedback

Quality
Professionalism
Price
Availability
Terms

Everything is perfectly implemented, all the scenarios are corrected and correctly designed. Technically, all processes during the test are corrected and corrected.

23 December 2018 51 USD
Accounting of goods and funds in the store

Quality
Professionalism
Price
Availability
Terms

The work was done greatly. I am satisfied with everyone. All the wishes were fulfilled, and the developer also proposed his, more successful solutions.

14 January 2018 77 USD
Arbitration of Cryptocurrency Program

Quality
Professionalism
Price
Availability
Terms

I am very happy to get to know and collaborate with Nicholas. A professional of his business. The work was done qualitatively, in time, with the understanding of the essence, done further than expected. I recommend and will contact you again. Thank you !

14 October 2016 8 USD
Sending messages to OLX

Quality
Professionalism
Price
Availability
Terms

Freelancer Nikolai Efremov (Nikolay 1982) This is a good and cheap program!! I advise!

Quality
Professionalism
Price
Availability
Terms

Freelancer Nikolay Efremov (Nikolay1982) offered his services to create the program. He called an acceptable price for me and made a gap that exceeded my expectations. He decided to continue cooperation with Nicholas.

Activity

  Recent proposals 10
Developing a chatbot in Telegram with integration with ChatGPT
1500 USD
Trading bot for market-making on crypto exchanges (CEX)
1736 USD
The Trade Bot. Machine learning
1736 USD
Program for Trading
1098 USD
Facebook Register through emulator and browser automation
511 USD
Required a channel telegram cloning bot + content replacement
179 USD
You need to create an app on C# under Windows.
450 USD
Development of financial applications in the Unity environment
638 USD
On-chain analysis is on-chain analysis. Data Analysis in Ethereum
255 USD
Парсить цены на сайте avto.pro по определенным товарам (запчастям).
153 USD