Oleksandr Filinskyi
Offer Oleksandr work on your next project.
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Offer work
Zhitomir,
Ukraine
1 day 12 hours back
available for hire
9 Safes completed
2 years back
9 clients
3 proposals made
on the service 10 years
Rating
Average rating
Skills and abilities
Programming
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Bot Development
from 7 USD for hour
- Databases & SQL
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Python
from 4 USD for hour
Portfolio
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3000 USD Educational portal of the college turnkey: website + LMS + electronic cabinet
Website Development
Developed and launched an educational platform for the Zhytomyr Cooperative College of Business and Law.
Live example: https://zkkbp.com.ua — the site operates stably, tested under load (load testing via loader.io) and confidently handles simultaneous connections.
This is not a landing page, but a full-fledged system with four portals in one application:
… Public site — news, dynamic information sections (for applicants, students, educational process) with multi-level categories, class schedule with search by group and teacher, document archive, electronic library, repository of qualification works, anonymous "trust box."
Admin panel — a full-fledged CMS: content management, news, groups, subjects, teachers, and students (with CSV import/export), schedule builder, load control (hour reports, teacher overlaps, classroom occupancy, journal checks), generation of reports in Word/Excel.
Electronic cabinet — for students (grades, average score, schedule, profile) and teachers (electronic journal with grade validation, group supervision, debt accounting).
Educational portal (LMS) — courses with materials by categories, embedded presentations (Prezi, Canva), file uploads, access tied to groups.
Technologies:
• Backend: Python 3.11 + Flask 3.0, architecture on blueprints (application factory)
• Database: MongoDB 7 (PyMongo, connection pooling)
• Security: password hashing bcrypt, CSRF protection (Flask-WTF), Flask-Limiter (protection of logins from brute force), separate sessions for admin and cabinet
• Performance: server-side page caching (Flask-Caching), gzip/brotli compression (Flask-Compress), cache-busting for static files
• Reports: openpyxl (Excel), print forms
• SEO: sitemap.xml, robots.txt, canonical, meta tags
Configured the server independently: production bundle Gunicorn (gthread, 16 parallel requests) + systemd with tuning for 1000+ connections (LimitNOFILE, auto-restart, memory leak protection via max_requests), as well as a containerization option — Docker + Docker Compose (multi-stage build, running as a non-root user). Logging, worker rotation, and availability monitoring are set up.
Result: a fast, stable, and secure product that is used daily by students, teachers, and college administration.
#Python #Flask #MongoDB #PyMongo #Docker #DockerCompose #Gunicorn #Jinja2 #Linux #systemd #Nginx #BackendDevelopment #FullStack #WebDevelopment #LMS
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33 USD Transmitted to the General Group TG
PythonTelegram Bot which is written on the pyrogram library allows you to send any message from the chat which you need in one common chat. A useful feature if you have to collect information from all the chats and nothing will be lost.
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39 USD Telegram Bot Referral System
PythonThe boat was created specifically on order. The database sqlite3 is also written on pyTelegramBotAPI. Implemented administration, administration functions: management of feedback, correction of the balance of the person in the bot, adding and removing the access of the person to the bot, informing all the people to whom the access is given, and so on. Likewise, the bot is placed on hosting (good and not expensive).
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9 USD Boat for Registration
Bot Development
Bott was my first project for my friends.
Basically, the task of the bot is simple:
1 . Registration
The 2nd Search for people who registered in separate chat + their information
… 3 . Cleaning registration with the team
and 4. Day with the help of the team
and 5. If the person has anticipated, the registration can be removed.
The bot was made within 2 days, as I just study pyTelegramBotAPI.
The bot was made so that there was no burden on the user, minimalist and comfortable.
Also, the user cannot re-register, only when the registration is deleted, he can re-register.
The bot was written using the pyTelegramBotAPI library for Python.
Developed by: PyCharm
#TelegramBots #TelegramBots #Python3
Reviews and compliments on completed projects 9
7 January 2024
67 USD
The Parsets-Bot Telegram
Quality
Professionalism
Cost
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Deadlines
I ordered a bot. Fast and with all the necessary functionality. I was happy with 10/10
30 December 2023
39 USD
Telegram bots to collect and send information about the order.
Quality
Professionalism
Cost
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The work is done faster than the declared, excellent contact, the decision has a greater functionality than described in the TZ. Thank you and I recommend!
1 October 2023
100 USD
Parser on Python https://www.autoscout24.ch/de
Quality
Professionalism
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He completed everything clearly and well, very creatively approached the task, communication super!
24 September 2023
22 USD
The Python Selenium. You need a specialist to edit the code.
Quality
Professionalism
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Everything was done quickly and clearly.
23 January 2022
48 USD
Разработка чат бота для discord 1
Quality
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Cost
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Everything was done well and quickly.
I liked working with the artist.
I hope for further cooperation.
Artem Krol
| Personal | Response review
12 November 2021
66 USD
Discord bot
Quality
Professionalism
Cost
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Everything is fine, I hope for further cooperation.
Profile deleted
| Safe 
24 August 2021
13 USD
Set the upload of posts from different Telegram channels in 1 general
Quality
Professionalism
Cost
Contactability
Deadlines
Everything is great! He quickly fulfilled his task – spent his time and clarified everything.
Specialist – we’ll work!
24 August 2021
41 USD
Telegram, get statistics by the invit link t.me/joinchat/NuiweGHfmG
Quality
Professionalism
Cost
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Deadlines
Excellent specialty, everything is done properly.
I recommend it.
3 August 2021
33 USD
Bot telegram for mail sorting
Quality
Professionalism
Cost
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Deadlines
Great work! Everything in time, all the glucose worked out immediately. Freelancer is recommended
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Telegram bot for auto service
223 USD
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Looking for a programmer or vibe coding Automation scraping data 2
200 USD
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Development of a TikTok farm (content factory)
22 USD
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Soft for sending messages in Telegram.
601 USD
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Finish developing the Telegram bot
78 USD
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Development of a Python script for monitoring trends in Google Trends
111 USD
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Понятный бот для рассылки по группам и чатам в телеграме
11 USD
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Create a chatbot telegram with a condition
90 USD
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Parsers from THT
17 USD
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Welcome to you! Requirements for personal notifications.
45 USD
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