Nazar Bondarev
Private message 
Poltava,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
English: pre-intermediate
Skills and abilities
Programming
Services
Mobile development
Translation
Portfolio
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45 USD Protection of the landing page from spam using a CSRF token
Cybersecurity & Data Protection
Task: Protect the form on the landing page from automated spam and unwanted actions by malicious actors. The main focus was on implementing a protection mechanism against CSRF (Cross-Site Request Forgery) attacks.
Implemented steps:
… 1. Adding a CSRF token to the form:
Each form on the site receives a unique CSRF token, which is generated on the server.
The token is added as a hidden field in the form, which is sent along with the form data.
2. Validating the CSRF token on the server:
Upon receiving the form data, the server checks for the presence of the CSRF token.
The token is compared with the value stored in the session to confirm the authenticity of the request.
3. Token renewal mechanism:
After each successful request, the CSRF token is updated to enhance security.
4. Testing:
Thorough testing of the form was conducted to check its resilience against CSRF attacks.
Additionally, the functionality was tested with various browsers and user configurations.
Result:
Reliable protection of the form against CSRF attacks has been implemented.
The number of spam requests has been reduced due to the use of unique tokens.
User data protection has been ensured, which has increased trust in the landing page and the client base.
Technologies used:
HTML, PHP, JavaScript
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90 USD Telegram bot for dating
Bot Development
Development of a Telegram bot for dating that allows users to easily find new acquaintances.
Main features:
Authorization via Telegram.
… Profile search by specified criteria.
Chat for communication between users.
Result: An interactive bot that provides quick and convenient dating without unnecessary effort.
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45 USD FIDO key authorization
Cybersecurity & Data Protection
Integration of FIDO key for two-factor authentication in the web application login form. Implementation features:
Added an option to log in using the FIDO key.
… Enhanced security through hardware authentication.
Convenient user experience without the need to remember complex passwords.
Result: Improved security of access to the web application with minimal effort for users.
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158 USD Prom Parser
Data Parsing
Development of a parser for the Prom.ua platform that automatically collects data on products, prices, and availability. The Python script allows:
To extract information about hundreds of products simultaneously.
… To create a database for further analysis.
To generate reports on price and availability changes.
Result: Effective competitor monitoring and updating of product positions.
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23 USD Telegram bot for job search
Bot DevelopmentA Telegram bot for job searching that helps users find job vacancies based on various criteria such as location, specialization, experience level, and type of employment. The bot is integrated with popular job vacancy services and uses a database to save user queries and track new job vacancies.
Functionality:
… Filtering job vacancies by categories, cities, and keywords.
Setting up job vacancy subscriptions: users can receive notifications about new job vacancies that match their queries.
Saving favorite job vacancies in the bot for quick access.
An interactive interface using buttons for convenient use.
Reviews and compliments on completed projects 10
3 August 2025
25 USD
Set up forms on the website on WordPress with the WPForms Basic plugin
Very satisfied with the speed and results. I will contact Nazar again for help.
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3 December 2024
23 USD
Protection for the site from bots
Everything is done wonderfully, I am satisfied with the work. Thank you!
1 December 2024
45 USD
Create an api/route in Next.js with integration of 2 services
Nazar completed his work, there were difficulties in the process but in the end everything works correctly.
26 November 2024
20 USD
Fix Display Issue in Django Project When DEBUG = False
I am very satisfied with the collaboration with Nazar. A professional in his field, always in touch, a pleasant person. I definitely recommend.
26 November 2024
34 USD
CSRF form protection
Thank you for the prompt execution. The problem is gone. Everything works perfectly.
21 November 2024
90 USD
Conducting cyberattacks and implementing protection against attacks, web application
Nazar completed my task very promptly, explained the results in detail, is always in touch, and readily responds! I definitely recommend him for collaboration, an outstanding specialist in his field!!!
20 November 2024
11 USD
Deploy a Django project (with a database) on Heroku
I am very satisfied with Nazar's work. He approached the task professionally and with expertise. He even corrected the mistakes that were my faults and were not included in the job description. He completed the work very quickly. I sincerely recommend collaborating with this performer.
17 November 2024
45 USD
Creation of automation for sending messages from the website to the manager's email
Thank you very much for completing the task. Everything was quick and professional.
24 October 2024
11 USD
Sending a message from a Google Sheets document via WhatsApp
Everything is according to the agreements. I recommend for collaboration!
9 October 2024
68 USD
Create a Telegram Bot
I can recommend the performer 100%. The task was completed fully, no complaints. The performer was always in touch, and if something needed to be refined, he listened and executed. If anyone needs an expert in creating Telegram bots, feel free to reach out, you won't regret it.
Activity
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Creation, connection, and configuration of WhatsApp Business API — personal project for Nazar Bondarev
45 USD
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Creation, connection, and configuration of WhatsApp Business API
45 USD
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Fibery X Scaleo Working with API
113 USD
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Bot parser of advertisements from necessary websites by parameters
113 USD
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Development of a Telegram bot
16 USD
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Python Parser (AliExpress - Amazon - Done!) Need - Website on Python + Management + n8n + Push to Vopres
180 USD
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Leglo
113 USD
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Freelance project
18 USD
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