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Oleksii Fedorenko

Offer Oleksii work on your next project.

Ukraine Kyiv, Ukraine
1 day 21 hours back
Available for hire available for hire
5 Safes completed
1 arbitration
1 month 14 days back
4 clients
age 19 years
on the service 1 year
  • ASP.NET WebForms
  • Front End/Backend dev
  • ASP.NET Web Api
  • ASP.NET Core
  • data scraping
  • MariaDB/MySQL/MSSQL/PostgreSQL
  • C#.NET Developer
  • LLM
  • HTML/CSS/JavaScript
  • Full-stack Development
  • python
  • Data Analysis
  • telegram bot
  • AWS/GCP/Azure/Docker/Kubernetes

Rating

Successful projects
83%
Average rating
10 out of 10
Rating
957
Web Programming
1578 place out of 6432
Python
463 place out of 4453
2 projects
AR & VR Development
2 projects
Bot Development
1 project
HTML & CSS
1 project
Javascript and Typescript

Language proficiency level

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

CV

Hello!

My name is Alex and I'm a multi-skilled Full Stack developer. My expertise includes creating complex automated solutions, developing bots of various types and complexity, websites, and integrating artificial intelligence (AI) into real-world projects. However, I am always ready to take on other types of projects to the best of my ability.


🛠 My Skills and Services:


🤖 Bots and Automation:

- Development of Telegram/Discord bots of any complexity:

- Chatbots with NLP (based on ChatGPT or own models)

- Trading, analytical, or entertainment bots

- Automation of moderation, newsletters, analytics

- Parsing data from websites (in Python, BeautifulSoup, Scrapy, Selenium)

- Fast data collection, processing and analysis (e.g. prices, news, contacts)

- Export to CSV/JSON/SQL for further use


🌐 Web development:

- Single-page sites (Landing Pages) - business cards, product presentations

- Multi-page websites - corporate websites, blogs, catalogues

- Database connection (MySQL, PostgreSQL) for dynamic content

- API integration (payments, social networks, AI services)


📊 AI and Data Management:

- Data analysis (Pandas, NumPy) - conclusions, forecasts, visualisation

- Machine learning (ML) - classification, recommendation systems

- Generative AI - integration of Stable Diffusion, GPT for creative tasks

- Automation with AI - text processing, report generation, process optimisation


🚀 What can I do for you?

Do you want a bot for Telegram/Discord? I can write one from scratch or improve an existing one.

Need a website? - From a simple business card to a complex portal with a database.

✅ Do you need to collect data from the Internet? - I will set up a parser with convenient output.

Interested in AI? I can help you implement ML or ready-made AI solutions in your project.

Automation: I can optimise any routine processes.


📖 I am studying now:

- Deeper into C# (.NET, Unity ) for game/app development

- Expanding knowledge in JavaScript (React/Node.js ) for more complex web development

- Experimenting with AI Agents


✨ Why should you cooperate with me?

- Flexibility- I work with different technologies to suit your needs. 

- Individual approach - I analyse each project separately.

- I am a stickler for details - code, documentation, usability.

Skills and abilities

Programming

Design & art

  • AI Art
    from 2 USD for project

Mobile development

Administration

Translation

  • English
    from 11 USD for project

Writing

Portfolio


  • 677 USD

    PoBuduY

    Web Programming
    Professional website for professional calculation of various types of roofing. The website was developed on ASP.NET Core (Web-Api) + React. The website includes user profiles, the ability to add custom materials, create different projects, flexibly configure fasteners, draw arbitrary roof shapes, add any materials, and much more. As a result, it provides a statement of calculations.
  • 158 USD

    Golio Web-site

    HTML & CSS
    Corporate website in the style of an introduction to the company "Golio"
    An adaptive website has been implemented for the company, focused on presenting its services, employees, and news. The project includes all key elements of a modern business site with a clear structure, user-friendly interface, and interactive components.

    --- Main features ---
    - Company presentation style: The main goal of the site is to give visitors a positive first impression of the company through clear visual presentation and attractive design.
    - Content sections:
    - Description of the company's activities with key advantages (simplicity, organization, accessibility of React & Nuxt, lifelong access).
    - Company team — a block with employees, their positions, and photos.
    - News and updates — a section for current company news.
    - Convenient navigation via header with sections: Home, Portfolio, Services, Testimonial, Pricing Plan, FAQs.
    - Footer with contacts, links, and CTA elements ("Contact", "Request a Quote").

    --- Design and implementation ---
    - Layout made with Bootstrap, ensuring responsiveness for all device types.
    - Based on a visual mockup in Figma, clearly structured for efficient development.
    - Interactive components applied (buttons "Get Started", "View Preview") with hover effects.
    - Added 3D illustration as a visual accent for the main section.

    --- Technical implementation ---
    - Optimized HTML/CSS structure.
    - Designed for integration with frameworks (React, Nuxt.js).
    - Code organized considering SEO optimization and performance.
  • Profit Hunter - Telegram Bot

    Bot Development
    A bot based on a user's request that parses the selected website and helps choose the best product for resale.

    1. Subscriptions. The user can subscribe to a plan suitable for them with a different number of parser uses. The subscription is processed through PayPal and Webhooks, which are received by the local server.
    -> If the payment was successful, the user is granted the corresponding number of attempts on their account.

    2. Bot response. The bot provides a reply in the form of text with the best selected products, and a Microsoft Excel spreadsheet where the user can manually review what has been parsed.

    3. What is parsed? The name of the product, price, rating, product link, demand.

    4. Reports. If users encounter problems, they can always contact support. The message sent by the user will be received in the bot owner’s personal messages, where a tag, phone number, and a brief description of the user's issue will be indicated.

    The bot has a simple and user-friendly interface, no manual input, everything works through buttons
  • 135 USD

    Professional adaptive HTML/CSS layout of the website for the company Capg

    HTML & CSS
    The project was implemented with a focus on clean, structured, and functional layout that meets modern web interface development standards. Special attention was paid to user-friendly navigation, ease of use, and visual balance of interface elements.

    The interface was created considering UX/UI design principles: each block is logically arranged, and the overall site structure allows users to quickly find the necessary information without unnecessary distracting elements.

    To improve information perception, lightweight typography and optimized fonts were used, ensuring comfortable reading on various devices.

    Animations used are designed with an emphasis on smoothness and unobtrusiveness, making the interface look dynamic and modern without overwhelming the user.

    The layout is adapted for all main screen types, including mobile phones, tablets, and desktops.

    As a result, the client received a high-quality, modern, and visually attractive website, ready for integration with any backend system or CMS.
  • 124 USD

    Account warming X (Twitter)

    Social Media Marketing (SMM)
    x.com
    • Creating activity in the feed
    • Likes/retweets on top posts on specified topics
    • AI-comments in the niche (based on tweet content)
    • Managing the account as if it were live (even with meme content)
  • 124 USD

    LinkedIn account warming

    Social Media Marketing (SMM)
    linkedin.com
    Activity simulation to warm up the account without blocks:
    • Viewing profiles in the relevant niche
    • Generating comments using AI (based on the post)
    • Automatic likes and reactions
    • Sending friend requests with a custom message
    • Working through realistic browser sessions (undetected)
    • Preparing the account for mass actions (collecting contacts, mailings, parsing)
  • 79 USD

    Pinterest / Behance – Parsing ideas, images, references

    Data Parsing
    pinterest.com
    behance.net
    Keyword collection | Image upload | Links to authors

    Collection of visual content, inspiration for designers, architects, marketers. Ability to upload images and save metadata.
  • 79 USD

    Prozorro – Tender Parsing

    Data Parsing
    prozorro.gov.ua
    Customer name | Amount | Winner | Description

    Data collection on tenders: name, budget, deadline, winners. Suitable for analytics, participation in government procurement, competitor analysis.
  • 90 USD

    Parsing news portals

    Data Parsing
    Topics | Date | Author | Source

    Automatic collection of news publications by categories (politics, economy, technology). Parsing headlines, publication date, short description, full text. Tracking new news publications and controlling duplicates.
  • 113 USD

    Google Search Parser — Data collection on key queries

    Data Parsing
    Monitoring competitors | Manual or automatic queries | Export to Excel
    The bot performs a Google search based on specified queries, navigating through each tab:

    • All — competitor websites
    • Images — image parsing
    • Videos — video content
    • News — collection of PR materials

    From each page, the bot extracts: links, company names, contact details, and more.
  • 101 USD

    Amazon – Collection of goods, ratings, and prices

    Data Parsing
    amazon.co.uk
    ASIN | Description | Rating | Discounts | Monitoring

    Data parsing from Amazon: titles, prices, discounts, ASIN, reviews, rating, availability. Ability to monitor price changes. Suitable for resellers, analytics, and dropshipping.
    Also analyzes sudden price changes and automatically sends notifications to Telegram
  • 68 USD

    Prom.ua – Automatic product parser

    Data Parsing
    prom.ua
    Catalogs | Sellers | Wholesale prices

    The bot collects complete information about products, price options, sellers, availability, reviews. Supports price analysis of competitors, export to Excel or Google Sheets.
    Detailed analysis of collected data AI (LLM)
  • 68 USD

    Parsing products from Rozetka

    Data Parsing
    rozetka.com.ua
    Data collection | Price analysis | Monitoring automation

    Development of a bot that automatically gathers information about products from Rozetka: name, price, rating, number of reviews, availability, seller, etc.
    Support for categories, filtering, page limit, saving in Excel/CSV, as well as automatic data updates on a schedule. Possible integration with Telegram for receiving notifications about price changes or new products.
  • 90 USD

    Automatic submission of resumes to Work.ua vacancies

    Data Parsing
    Parsing job vacancies | Auto-replies | Scaled system

    Development of a bot that automatically collects new job vacancies from Work.ua based on specified criteria and sends resumes without your participation.
    Ability to work with multiple accounts, configure delays, filter by keywords, keep logs of responses. Support for multithreading and adaptation to any requirements.
  • SuperJacker - Telegram Bot

    Bot Development
    A game implemented similar to Blackjack.

    The user initially either registers or logs into an existing account.
    After that, they can view their account, top up their balance, start a game, or log out.
    All user data is stored in the DataBase.
    -- Game Process --

    At the very beginning, the user is dealt 3 random cards, they can choose to take another card or fight the opponent. If the sum of the cards exceeds 21, the player automatically loses.
    Opponent. The player's opponent is a bot who is also dealt cards at the start of the game. Based on AI logic, the bot decides whether to take another card. If the bot's total exceeds 21, the player automatically wins.

    ----------------------------------------
    What was used in the project:
    - Artificial intelligence integration
    - Databases
    - Logging and tracking users who have logged in
    - Debugging unforeseen errors

Reviews and compliments on completed projects 5

21 April 68 USD
Improvement of CRM

Quality
Professionalism
Cost
Contactability
Deadlines

I liked working with this specialist. He performs the work quickly and efficiently. He is also always in touch. I recommend!

8 November 2025 77 USD
Discord bot minute of silence

Quality
Professionalism
Cost
Contactability
Deadlines

Short feedback.
Honestly, I liked it.
Responsible.
Fast.
Loyal.

29 October 2025 226 USD
Message integration

Quality
Professionalism
Cost
Contactability
Deadlines

Thank you very much for the quality and prompt work! The project was completed professionally, taking into account all wishes. It was a pleasure to collaborate — a responsible approach, good communication, and quick response to edits. I recommend for collaboration!

Quality
Professionalism
Cost
Contactability
Deadlines

So, the work has been checked
everything works well, thank you!

23 August 2025 34 USD
Web interface for the bot

Quality
Professionalism
Cost
Contactability
Deadlines

The interface was completed on time and with quality.

Activity

  Latest proposals 10
Website creation: several pages, payment automation for individual entrepreneurs, automatic booking of consultations
496 USD
Website + catalog
226 USD
Connecting the Backend via API to the React front end
100 USD
Development of a corporate identity and visual system for a dental clinic
338 USD
Website creation
338 USD
AI Agent + CRM for sales automation.
609 USD
Webapp
338 USD
Integration of BAS MB (1C) with the Ant-logistic logistics service for a bottled water delivery company
451 USD
I am looking for a website security specialist.
68 USD
Landing page for the Academy
338 USD