Matvii Marchenko
Private message 
Offer work 
Zaporizhzhia,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: advanced
English: elementary
CV
Over four years in software development. Primary language — Python, specializing in backend, APIs, AI integrations, and automation. Capable of managing a project from requirements to production and beyond.
Experience both in teams (full-time positions) and fully solo — from architecture to deployment and maintenance. Strong understanding of business processes, easily build rapport with clients and dive into project details.
Actively work with neural networks — both as a development tool (Claude Code, agentic development, full development pipeline through AI agents) and as part of the product (LLM integrations, semantic search,
embedding models, prompt engineering). Over the years I've tried numerous approaches and variations — I know the ins and outs. Have shipped products to market developed in this format.
Constantly improving my skills and learning new technologies for more efficient task execution.
Recent projects:
Voice AI assistant for veterinary clinics. Built on a RAG system with telephony integration (gRPC, SIP) — receives client calls, schedules appointments, provides consultations based on a verified knowledge base, and selects appropriate actions during conversations. Semantic search via Qdrant, LLM integration, full AI pipeline from speech recognition to response generation. Explored numerous variations of working with neural networks on this project.
Search engine built on Elasticsearch for a large-scale website. Multiple search algorithms, complete backend service for frontend integration.
AI-powered contextual advertising platform for Telegram. Semantic search, neural network integration, B2B web application with admin panel, Telegram client fork, full business logic, solo development and project management.
Many other projects.
Skills:
Python (FastAPI, Django, Flask, aiogram, Selenium, PyQt5, Beautiful Soup, PyAutoGui, PIL, openpyxl
AI/LLM (OpenAI, Anthropic, LiteLLM, embeddings, Qdrant, prompt engineering, agentic development)
Docker, Docker Compose, CI/CD, Linux, Git, Jira, RabbitMQ, Kafka
PostgreSQL, MySQL, SQLite, MongoDB, Redis, Elasticsearch
Go, JS
HTML, CSS
gRPC, SIP, IMAP, SMTP, REST API, WebSockets
Looking for long-term projects focused on backend and AI. Open to working in teams that embrace modern technologies. Can handle frontend when needed.
Skills and abilities
Programming
Services
Mobile development
Writing
Portfolio
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Fullstack site on Django
Python
Fullstack site on Django, to display publicly available information about sites and their infrastructure, authorization, registration, personal account, payment of a subscription to use the site.
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Desktop application with interface for crypto trading
Python
Desktop application with an interface for crypto trading using pyQt5 and working with binance, bybit, huobi, kucoin
-
TG bot with Google Drive files synchronization
Python
Telegram bots, to save and download files on the google drive, with different levels of access, data storage in the BD, convenient menu and setting. Written on Telegram BOT API
The screenshot provides a photo of the result of the user's work with the bot.
Used technologies
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200 USD Post Customer Self-Responder (Gmail)
Python
The program verifies in the mail list the availability of the necessary messages (by criteria) in the folders (input, spam, social networks), distributes to the necessary folders, and according to the need responds to them.
A set of technologies:
The Imap (IMAP)
by SMTP (SMTP)
… by HTTPlib2
Socks
Multiprocessing
Requests
Import of emails
Socket
Import of Re
Selenium
by BS4
Other basic Python libraries
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Parser comments from the Eldorado store
Python
Parser, on request, all comments from the major Eldorado store, with subsequent storage in JSON format.
The used technologies:
Requests
… by BS4
-
Parser clothing stores with sending to telegram channel
Python
Parser of goods with discount from clothing stores with subsequent shipping by timer to the telegram channel.
The used technologies:
Selenium
by BS4
… Telebot
Other basic Python libraries
-
Data parser with Excel loading
Python
Parser with proxying and authorization, with uploading more than 20 different lines in Excel, creating logs and browsing site errors
A set of technologies:
Selenium
by BS4
… OpenPyxl
Requests
Other basic Python libraries
Reviews and compliments on completed projects 20
12 September 2024
293 USD
Refinement of the script in Python
The performer did everything at the highest level, as always. I especially like the interactivity and engagement. Thanks to the specialist, the work is done even more neatly and thoughtfully than originally intended.
21 June 2024
158 USD
Modification of the previous script in Python (path II)
Excellent specialist, I recommend
12 June 2024
248 USD
Modification of the script in Python
Very competent specialist, improved the previous project, always in touch and flexible in completing tasks - I recommend
27 May 2024
338 USD
Trading program on Binance exchange in Python language
A wonderful performer, delves into all the nuances and details. Works with an approach, not just executes the terms of reference but seeks solutions for a competent and productive end result. Working with them is a pleasure - we will cooperate in the future as well.
22 January 2024
72 USD
Connecting the site and ChatGPT
Excellent performance, quickly and quality, I recommend.
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10 January 2024
18 USD
Processing of BOTT telegram
Everything is done quality and quickly. As always
9 January 2024
38 USD
Processing of BOTT telegram
Everything is done perfectly. I will continue to contact.
23 July 2023
226 USD
Processing of the previous project
The previous agreement is fulfilled, we will continue to cooperate.
4 June 2023
338 USD
Create Python Django website
The project appeared to be more complex than I expected, they went on time because it had to clarify the TZ as it was not complete. They agreed to work on another project.
29 March 2023
46 USD
Flask_work_timer_v2 (update)
The work was done quickly and efficiently. I recommend this executive.
16 March 2023
63 USD
Parking of data
The work was done well, the amendments were always made timely, always in contact. aimed at further cooperation. I recommend it.
7 March 2023
79 USD
Working hours at minimum (update)
Successful completion of the project. The practitioner did a great job: he made every effort to ensure the high quality of the work, invested in the established deadlines and fulfilled all the requirements that were placed before him.
I am satisfied with his work.
18 February 2023
147 USD
Working time at minimum
The project is performed well. I recommend this freelancer.
11 January 2023
23 USD
Development of Telegram-Bot
As always, everything is done perfectly. Everything is done in accordance with the technical task, quality and in time. I recommend cooperation.
5 January 2023
61 USD
Direct to Instagram
In general, the norm, not without defects, but as a result, the price quality I consider acceptable
3 January 2023
68 USD
Development of Telegram-Bot
A good job. I liked everything. Operational communication and development of the project in accordance with all my wishes
14 December 2022
36 USD
Create a telegram bots
It’s all right and right, thank you.
16 November 2022
198 USD
Preparation 2st stage
Thank you for the speed. All of quality)
10 November 2022
135 USD
Design Advisor for Cryptocurrency
Thank you for the speed. Everything is quality.
3 November 2022
226 USD
Test task for the project
A great executive. Very well done the graphic design of the program.