Andrii Melnik
Offer Andrii work on your next project.
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Kyiv,
Ukraine
1 day 23 hours back
a little busy
6 Safes completed
7 months 29 days back
6 clients
12 proposals made
age 23 years
on the service 3 years
Rating
Language proficiency level
Українська: fluent
Русский: upper-intermediate
English: intermediate
Skills and abilities
Programming
Services
Mobile development
Administration
Outsourcing & consulting
Writing
Portfolio
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400 USD Bypassing traffic filtering systems (spam)
Web Programming
An intelligent ecosystem has been developed for automating lead generation and testing web forms to bypass modern traffic filtering systems. The project combines a powerful emulation script and a No-Code admin panel, allowing businesses to scale processes without involving developers.
Functionality:
• No-Code form adaptation: A visual CSS selector builder for instant connection to any website without code editing.
… • Human-Like behavior emulation: Fine-tuning of key press delays, pauses between submissions, and timeouts to bypass spam filters.
• Hybrid database operation: The ability to use both randomized data and real client databases with one-click switching.
• Bypassing trackers and fraud systems: Specialized algorithms for successfully passing through filtering systems (including Keitaro).
• Device masking (Proxy & User-Agents): Support for HTTP/SOCKS5 protocols with dynamic rotation and a built-in library of current User-Agents (mobile/desktop).
• Flexible browser modes: Support for Headless mode for background speed work and Web Mobile First through Chrome extensions for complex checks.
• Centralized monitoring: A built-in real-time log console for monitoring submission success and error analytics.
Result: A fault-tolerant marketing automation tool has been created, allowing flexible testing of sales funnels and ensuring seamless data entry into CRM systems.
#LeadGeneration #Automation #WebTesting #NoCode #BotBypass #FullStack #ProductDevelopment #DevOps #CRMIntegration
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256 USD One-page website for greenhouse product
Web Programming
The project included:
- design development based on given examples of websites
- responsive layout for mobile devices and desktops;
… - integration of the order form with data transfer to CRM and Telegram;
- setting up fast page loading and SEO optimization;
- connecting delivery modules and FB-pixel.
The client received a modern tool for online sales: a page that clearly presents the advantages of the product, allows for quick submission of requests, and automatically processes orders.
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Hochu Platform
Web Programming
A unique format of a bulletin board has been implemented, where sellers offer their solutions based on specific requests instead of buyers searching for products. The project has been developed from scratch with a focus on scalable architecture and high performance.
Functionality:
• "Reverse Search" Mechanism: Creation of "I want to buy" requests specifying budget and characteristics, to which sellers send their offers.
… • Distributed Profile Types: Independent Buyer and Seller accounts within one account to focus only on necessary features.
• Status System: Smart filtering of ads that displays only relevant and available requests in the search.
• Trust Ecosystem: Rating, feedback system, and public user activity history (previous ads and feedback on them).
• Interaction Analytics: Ability to see the activity of the other party in the app to make a decision about collaboration.
• Technology Stack: High-performance architecture on Next.js, Nest.js, and MongoDB.
• Security and Speed: Full integration with Cloudflare for protection and traffic optimization.
• Adaptability: The interface is fully optimized for mobile devices and desktop.
Result: A scalable platform with well-thought-out business logic has been created, ready to enter international markets.
#FullStack #Marketplace #NextJS #NestJS #SaaS #WebDevelopment #Startup #ProductDesign #ReverseTrading
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490 USD Online store of accessories
Website Development
Developed an online store for accessories (turnkey) on the Khoroshop platform
Functionality:
- Product catalog: pendants, charms, bracelets, men's, women's, and couple accessories.
… - Product cards with photos, descriptions, specifications, and prices.
- Filters and search in the catalog.
- Cart and order placement with payment and delivery.
- Fully responsive design.
- SEO settings and basic speed optimization.
- Connected payment services and delivery services.
- Management of products and orders through the Khoroshop admin panel.
#seo #TurnkeyWebsite #websites #onlineStores #eCommerce #Ecommerce/Shop/Store
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189 USD Screenshot generator
Javascript and Typescript
A web service (SaaS) has been developed for generating and simulating realistic screenshots of conversations.
Functionality:
- Creating dialogues: Setting up and saving sender and receiver profiles.
… - Full customization: Adding photos, text messages, setting date and time.
- Time management: Configuring relative or absolute message time.
- Editing messages: Ability to add, delete, and move individual messages.
- Status simulation: Setting profile status (e.g., "no status").
- Export: Generating the final screenshot of the conversation.
- Profile management: Saving and quickly selecting multiple profiles for different scenarios.
#web-service #UI/UX #React/Next.js #TypeScript #Frontend-development #simulator
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89 USD Telegram app for online booking at the hair salon.
Javascript and Typescript
Developed a Telegram app for online booking at a hair salon.
Functionality:
- selection of the day and available hours;
… - selection of services and the master;
- automatic display of available hours for a specific day;
- loading of prices and duration of services;
- transfer of the booking to the master in his CRM.
- light and dark themes
#react/next #Telegram-developer #html/css/js #React/TypeScript #TypeScript
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1000 USD CRM for tire fitting
Web Programming
Developed a CRM system for a tire fitting service.
Functionality:
Cashier Panel:
… - customer calculations;
- selection of types of work and consumables;
- bonus accrual;
- recording information about the vehicle;
- accounting for tire storage;
- managing debtors;
- report generation;
- opening/closing shifts;
- selecting employees for shifts;
- automatic salary calculation for employees.
Manager Panel:
- managing tire storage;
- changing quantities and prices of materials;
- report generation;
- reviewing completed work;
- monitoring and calculating debtors.
The client received a fully functional CRM system that automates the operations of the tire fitting service, simplifies the accounting of customers, materials, and finances, and provides transparent control over employees and processes.
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67 USD One-page website for selling Wi-Fi/4G cameras
HTML & CSS
The project included:
- creating a promotional page with product description, specifications, and photos;
- responsive layout for mobile devices and desktops;
… - integration of the order form with data transfer to CRM;
- setting up fast page loading and SEO optimization;
- connecting delivery modules and FB-pixel.
The client received a modern tool for online sales: a page that clearly presents the advantages of the camera, allows for quick application submission, and automatically processes orders.
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67 USD One-page website for selling on Facebook
HTML & CSS
The project included:
- creation of a website with a product catalog;
- responsive design that works equally well on mobile and computer;
… - fast loading and easy navigation for users;
- the ability to view the full product description, its characteristics, and photos;
- integration of a CRM system and FB-pixel
The client received a modern tool for online sales that allows for quick presentation of products, order acceptance, and automatic processing of customer requests.
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156 USD Development of a website for Doctype studio
Web Programming
The project included:
- the creation of a modern responsive website with a clear structure and pleasant UX/UI;
- frontend on React/Next.js, backend on Nest.js/Express.js;
… - integration with MongoDB/PostgreSQL database;
- optimization of loading speed and SEO preparation;
- implementation of interactive elements and animations.
Reviews and compliments on completed projects 6
21 October 2025
156 USD
Public Forms (only ready-made templates) in React + Supabase project
Quality
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Great work, good communication, clean code. Andrii responds quickly to feedback. Everything was very pleasing. Thank you for the collaboration!
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12 October 2025
189 USD
Screenshot generator for conversations (messenger-style)
Quality
Professionalism
Cost
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The project was completed successfully, I recommend for collaboration.
28 September 2025
33 USD
Fix / Make a probability calculation in the case and the visual part (React)
Quality
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Did everything perfectly and quickly. Understands with half a word, pleasant to communicate with. The work is clear, without corrections, just as specified in the terms of reference. I recommend for collaboration.
30 August 2025
45 USD
Script for Google Sheets + Checkbox API
Quality
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I definitely recommend the specialist. They solved the task on the same day.
15 August 2025
89 USD
[NextJS, TelgramMiniApp] Write a form for the application for recording
Quality
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Satisfied with the performer, did everything as needed and even more!!! Definitely recommend!
Quality
Professionalism
Cost
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The collaboration went wonderfully. Completed the task faster than the specified time. Was always in touch
