Roman Z.
Private message 
Offer work 
Uzhgorod,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: fluent
English: advanced
CV
I am a specialist in artificial intelligence development, focused on Python and operational process optimization.
My approach is to combine technical knowledge with innovative solutions to help companies interact with clients more effectively and automate business processes.
Education
In February 2025, I will officially receive a red diploma (master’s degree with honors) in the specialty "Computer Science" (AI track) from Uzhhorod National University.
My thesis, titled "RESEARCH OF EFFECTIVE LARGE LANGUAGE MODEL (LLM) INTEGRATION THROUGH LANGCHAIN, LANGCHAIN EVALS, AND LANGFUSE TO IMPROVE PRODUCTIVITY", allowed me to dive deep into modern natural language processing technologies and demonstrate the real impact of LLMs on improving efficiency in a business environment.
Key Skills and Tools
Programming Languages and Technologies:
Python
AI Tools: OpenAI API, LangChain, RAG, Llama-cpp, HuggingFace API and models, VertexAI API, Claude API, Gemini API, OpenSource LLMs
Telegram Bot Development: Aiogram, PytelegramBot
Web Frameworks: Flask, Gradio, Streamlit
Machine Learning and Data Analysis:
Numpy, Pandas, TensorFlow, Keras, Matplotlib, Plotly
Web Scraping:
RequestsHtml, BeautifulSoup, Aiohttp, Selenium
This combination of skills and experience allows me to build cutting-edge AI systems that increase efficiency, enhance user experience, and help businesses stay at the forefront of innovation.
Skills and abilities
Programming
Photo, Audio & Video
Portfolio
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291 USD Amazon Feedback Analyzer using OpenAI
AI & Machine LearningThis project is a web interface based on Gradio for analyzing product reviews from Amazon. Users enter an API key and product URL, after which the system retrieves reviews from the specified page. These reviews are then processed using the GPT-4 model to create a detailed product analysis, which includes processing text data from files provided via the OpenAI API. The analysis results are presented in the form of formatted Markdown, allowing for easy viewing and understanding of the key points in the product reviews. This tool helps to gain a complete understanding of the product, simplifying the decision-making process for buyers.
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582 USD AI bot to assist Ukrainian refugees in Europe
AI & Machine Learning
This project is a Telegram bot that provides online consultations for Ukrainians living in Europe. The main functions of the bot: 1. Checking the user's subscription to the Telegram channel "Diaspora – Ukrainians in Europe." Users can subscribe to the channel through the bot or via a link. 2. Collecting information about the user, including name, email, and country of residence. This information is stored in an Airtable database. 3. Providing the ability to ask questions in text format. The number of questions is limited to two per day for each user.
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1281 USD Commercial AI bot for creating bedtime stories for children
AI & Machine Learning
This project is a Telegram bot "Buka Buka" for creating and sending interactive fairy tales for children. The main functional capabilities of the bot: 1. Collecting information about the user, such as gender, age, and child's bedtime, to personalize the fairy tale. 2. An interactive process of creating a fairy tale with the option to choose a theme (animals, family, adventures, etc.) and input a brief description of the desired plot. 3. Generating and sending a unique fairy tale in the form of text, audio version, and illustrations based on the entered information. Fairy tales are generated using a text generation system. 4. The possibility of subscribing for unlimited access to fairy tale creation and additional features. Various subscription types are provided (standard and premium). 5. Reminders for inactive users with an offer to create a new fairy tale or subscribe. 6. Using external databases (Airtable) to store information about users, subscriptions, and bot settings. 7. Integration with a payment system for subscribing to fairy tales. The bot helps parents create individual fairy tales for their children, promoting their development and learning in an engaging and interesting way. It offers both free and premium subscriptions to meet various user needs.
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582 USD AI TG bot for generating posts created from articles with tracking
AI & Machine Learning
Description: This project is a bot developed using the aiogram library to work with the Telegram API. The bot is designed to generate texts for publications in Telegram, specifically for creating posts about events or general messages.
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466 USD Automated TG bot for sending Polish news to the TG network
Python
This project is a Telegram bot that performs the following functions: 1. Parses news from the official websites of major Polish cities (Warsaw, Krakow, Wroclaw, and others) daily at a specific designated time (18:30 local time). 2. Translates headlines and a short introductory text of the news from Polish to Ukrainian using the DeepL API. 3. Sends the translated news to users in the form of messages with photos and links to the original articles. 4. Stores information about selectors for parsing news from different cities in a special dictionary. 5. Contains functions for correctly processing dates published on websites, regardless of their format. 6. Sends news to both personal chats and Telegram channels (optional). 7. Operates in task scheduler mode, launching parsing and sending news daily at a set time. 8. Uses aiogram libraries for interaction with Telegram, requests_html for parsing websites, asyncio for asynchronous processing, newspaper3k for extracting article text, and DeepL for translation. The main goal of this bot is to aggregate and translate news from official sources of major Polish cities for the Ukrainian-speaking audience of Telegram. It automates the process of collecting, translating, and delivering important news from Polish sources.
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116 USD Registration TG bot for a commercial company
Python
TG bot for user registration to subsequently receive a promo code for interaction with the client company.
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349 USD Text-to-Speech System (ML Backend)
AI & Machine Learning
The TTS_freelance project is a modern software solution for converting text to speech, developed using Python. With a thoughtful architecture and clean, organized code, it demonstrates high efficiency and flexibility, making it ideal for integration into various products and services. The development includes basic functionality, advanced features, as well as convenient scripts for automating settings and launching, which significantly simplifies working with the project. This innovative solution combines stable performance with the ability to adapt to the demands of modern technologies, providing high-quality service for end users.
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233 USD Telegram bot for parsing and translating news
Python
This project is an asynchronous Telegram bot developed using the aiogram library. The bot regularly parses news data from Dutch sources, translates headlines from Dutch to English, and publishes formatted messages in a Telegram channel. Automated task scheduling ensures timely processing and publication of updates, making the system a reliable tool for maintaining the relevance of the news feed.
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582 USD ML model for recognizing military aircraft in photos
AI & Machine Learning
The model is a Vision Transformer (ViT) designed for detecting and classifying military aircraft in images. It was trained on a dataset containing images of 43 different types of aircraft, including models such as A-10, F-16, and B-52. The model is intended for applications such as military surveillance and object recognition. Evaluation metrics indicate an overall accuracy of approximately 60.8%, with varying performance for different classes of aircraft.
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291 USD Telegram bot for automatic call receiving and transcription
AI & Machine Learning
This project is an asynchronous Telegram bot that automatically receives audio recordings of calls from Binotel, performs their transcription using OpenAI Whisper, and sends the results as messages in Telegram. The bot operates on a schedule, collecting information about the latest calls, filtering only successful calls with recordings, obtaining audio file URLs, recognizing speech, and saving the results in Google Sheets for further analysis. With integration with AI services and cloud tools, the solution allows for the automation of call processing and increases the efficiency of the team's work.
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116 USD Web scraper for collecting profile data from Kaggle
Data Parsing
This project implements a web scraper based on Scrapy that automatically collects detailed information about Kaggle user profiles. It analyzes profile pages, extracts data about name, location, position, competition activity, datasets, notebooks, discussions, as well as information about followers and subscriptions. Additionally, the parser finds and classifies external links such as GitHub, LinkedIn, Twitter, or personal websites. Thanks to HTML processing features, the scraper correctly extracts biographical data. The project ensures efficient collection and structuring of data for further analysis of Kaggle user activity.
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175 USD Web scraper for collecting profile data from GitHub
Data Parsing
This web scraper, built on Scrapy, automatically collects information about GitHub users. It retrieves a list of profile URLs from a file on GitHub and analyzes the profile pages, extracting the following data: Basic information: name, nickname, location, biography Contact details: links to Twitter (X), Instagram, LinkedIn, personal websites, and email.
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116 USD Scrapy bot for collecting data from Hugging Face profiles
Python
A script based on Scrapy that automatically collects information from user profiles on the Hugging Face platform. It processes a list of URLs from a text file, extracting key data (names, nicknames, social media links, etc.).
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175 USD Integration of Airtable with Replicate
Python
Automated solution for generating images based on text descriptions. The user selects a record from Airtable that contains a description (Prompt) and aspect ratio, after which the request is sent to the Replicate service API. The result is a generated image, the task status is checked, and the record in the table is updated with the corresponding link. In case of errors or NSFW content, the system provides an explanation.
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233 USD Telegram bot for parsing and translating news
Bot Development
An automatic bot based on aiogram that collects news from Dutch websites, translates it, and publishes it in a Telegram channel.
Reviews and compliments on completed projects 7
21 August 2025
34 USD
Consultation
I received a consultation on the topic of artificial intelligence — I was very satisfied with the result. The performer explained everything clearly, understandably, and substantively, answered all questions, provided valuable advice and examples. There is a high level of competence and experience in the topic. I recommend them as a responsible and professional specialist.
The project was completed with quality, no questions for the performer
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20 May 2025
370 USD
Development of a service for a PDF file parser (Batch API)
Everything is great. Thank you for the work!
3 May 2025
271 USD
AI OCR Parser for PDF files (Final part)
The project is completed, thank you! As always, everything is clear and quick.
2 May 2025
271 USD
AI OCR Parser for PDF files
The project was completed quickly and efficiently. A good solution was proposed. The result exceeded my expectations. I recommend!
30 April 2025
406 USD
Project for creating an AI model part №1
Thank you for the work! Everything quickly and qualitatively!
Thank you for the consultation! We discussed all the details and identified the problematic areas in the current working model. We talked about how to create the ideal model to solve our current tasks. Thank you to Roman for his professionalism and promptness!
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Setting up the Claude bot or an alternative for our tasks
275 USD
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BOT for OLX - monitoring new listings and notifications about them
23 USD
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Create a Telegram bot
23 USD
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AI automation of lead processing from Calendly and follow-up through Gmail
23 USD
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AI and CRM
23 USD
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Setting up product synchronization from Google Docs to the online store and marketplaces
23 USD
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LinkedIn parsing
116 USD
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Automation for OLX
79 USD
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Architecture audit + Claude Code workflow review for production SaaS on Next.js / tRPC / Prisma
609 USD
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Add AI agent to the Wordpress site
23 USD
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