Budget: 15000 UAH Deadline: 14 days

Key risks: loss of SEO structure and failure of integrations with the supplier. To avoid this, I propose: 1) deploying a clean OC4 + phased data porting through a custom script with test snapshots; 2) preserving all SEO URLs through an alias table and setting up 301 redirects before shutting down the old site; 3) adapting the API integration for the new OC4 with error handling and logging; 4) transferring the custom theme or creating a new one considering bilingualism. I have experience in data migration and building e-commerce from scratch — example: https://freelancehunt.com/showcase/work/lyuksimport-premialnyiy-e-commerce-proekt-internet-magazin/2038489.html. Are you ready to provide test access to the current admin panel and details of the integration?

Price: 15000 UAH
Deadline: 14 days

Budget: 27000 UAH Deadline: 30 days

I reviewed the specifications. A controlled deployment of the new store is needed, including data migration, SEO addresses, two languages, a blog, and current orders before switching the domain.

I can handle both backend and frontend: migration to OpenCart 4, integration with the supplier, Nova Poshta, payment, multilingual SEO, design in Figma, and a custom responsive theme. The work will be done on staging with testing, final synchronization, and the possibility of rollback. Budget and deadlines will be discussed in private correspondence.

Is there documentation or source code for the current integration with the supplier, including the product identification format?

Budget: 10000 UAH Deadline: 12 days

Good day, Ruslan!

I see your project not just as an "OpenCart update," but as a careful relaunch of the store without losing SEO, data, and working integrations. This is precisely the case where not only the transfer of the catalog is critical, but also the correct logic of migration: separate data, separate SEO structure, separate bilingualism, separate exchange with the supplier, and the blog.

I can take on the backend + frontend turnkey or just one part separately. I would work in stages:
— audit of the current OC2, URL structure, language scheme, and custom exchange;
— deployment of a clean OC4 on staging;
— controlled transfer of entities with verification of connections;
— reproduction of SEO-URLs for uk/ru, hreflang, canonical, and 301 maps;
— transfer/adaptation of the exchange with the supplier, cron, logging, manual launch;
— integration of Nova Poshta, payment, checkout, import of xlsx/csv, and photos by article/barcode;
— transfer of the blog https://blog.bp.ua/ with preservation of editing from the admin panel;
— new OC4 theme: Figma → twig, mobile-first, live data, performance, and bilingual language variables without "hardcoded" text.

I would like to specifically point out what usually breaks during such migrations: emails in the session language, language SEO addresses, correct redirects for both languages, compatibility of custom import with OC4, and preservation of blog indexing after the transfer.

If convenient, I can start with a short technical audit of the current store and immediately provide a clear implementation plan by stages and risks.

🌐 My portfolio with recent cases:
https://mrnko.com
💼 Freelancehunt profile:
Freelancehunt
🤝 I would be happy to discuss the details, answer your questions, and offer the optimal solution for your project. Expand

Budget: 26000 UAH Deadline: 30 days

Good day! I will take the backend part. I have migrated stores from OpenCart 2 to 4, and the most time-consuming aspect is not transferring products, but the SEO URLs: in version two, the keyword is part of the product itself, while in version four, it is a separate seo_url table linked to the language, so the 301 redirects need to be compiled from the database, not manually. The custom exchange with the supplier will also need to be rewritten for the new extension structure; the old code in OC4 simply won't work. Can you tell me if the exchange currently operates via API or retrieves the price file?

Budget: 10000 UAH Deadline: 6 days

Good afternoon, I have been working in web programming for 10 years. I am ready to complete the task.

Budget: 12000 UAH Deadline: 7 days

Hello! I am ready to update the website on OpenCart.

🔹 Website design from scratch/redesign
🔹 Layout: HTML, CSS, JS, SQL, Sass
🔹 Development of mobile applications and Telegram bots
I work with:
🔹 WordPress — Elementor — WooCommerce
🔹 OpenCart
🔹 Shopify
🔹 Webflow
🔸 Laravel • React Native JS • Vue Expand

Budget: 27000 UAH Deadline: 45 days

Hello!

Migrating an existing store with active integrations and SEO history to OpenCart 4.x without a direct upgrade path is a task where the main risk lies in losing search positions and failures in data exchange with the supplier, so the approach here is more important than speed.

With over 8 years of experience working with e-commerce platforms, I have repeatedly conducted similar controlled migrations while preserving SEO-friendly URLs, setting up 301 redirect maps, and porting custom data exchange integrations — the principles are the same as in complex migrations to Magento 2.

I will start by deploying a clean OC 4.x on staging and transferring the data structure, while simultaneously porting the logic for data exchange with the supplier (cron, error log, hiding unavailable items), after which I will connect bilingual support (uk/ru) with separate SEO URLs, hreflang, and native sitemap generation, and I will integrate the Nova Poshta and payment modules last before testing Core Web Vitals.

A realistic timeline for the backend part is 35–45 working days depending on the volume of custom data exchange modifications, with an estimated cost of 30,000–45,000 UAH; please clarify if there is documentation/code for the current integration with the supplier and how many third-party modules are currently involved in 2.x.

I am ready to discuss the details and priorities of the stages at your convenience. Expand

Budget: 20000 UAH Deadline: 10 days

Good day!
I am ready to take on the project.

Clean deployment of OC4, data migration (2000+ products), preservation of SEO-friendly URLs and 301 redirects (uk/ru), porting of supplier API (cron synchronization), New Post and payment modules. Frontend — mobile-first, Figma → twig layout, faceted filters, blog.

Experience: migrations OC 2.x/3.x→4.x, supplier integrations, New Post, LiqPay/Fondy, multilingual stores.

Budget: 25000 UAH Deadline: 10 days

Hello! I will complete your task quickly and efficiently.

My recent works
https://indexfast.pro - fast website indexing
https://mono-bank.pp.ua - everything about Monobank
https://mamamia.pp.ua - online store
https://programist.pp.ua/ua/portfolio/ - portfolio of works
https://monitortest.pp.ua - monitor testing
https://keytest.pp.ua - keyboard testing
https://pctest.pp.ua - computer testing
https://devroman.dev/portfolio/ - portfolio
https://vseetut.matviy.pp.ua - layout
https://indexfast.pp.ua - fast website indexing

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be glad to collaborate with you! Expand

Budget: 800 UAH Deadline: 1 day

Hello!

I specialize in Opencart. I am ready to complete all tasks except for developing a design system.

Opencart 4 is still quite raw and lacks sufficient module support. It’s better to choose version 3.
blog.bp.ua operates as a separate site with its own CMS. It has nothing in common with bp.ua. If there is a task to transfer everything into one admin panel, this point should be detailed.

Regarding the cost - starting from 80,000 UAH.

If you have any questions, feel free to contact me personally.

Budget: 4000 UAH Deadline: 4 days

I have been working with Opencart for over 10 years. Feel free to contact me, I will take a look at how everything is implemented on your end; there are many nuances for transitioning to version 4.

Budget: 25000 UAH Deadline: 14 days

Hello.
I can take on the entire project: migration from OpenCart 2.x to 4.x, data transfer and SEO, supplier integration, bilingualism, delivery and payment modules, and a new responsive theme.
I suggest performing the work in stages on staging so that the current store continues to operate until testing is completed.
The preliminary budget for the full scope is from 50,000 UAH. I can provide an exact estimate after reviewing the current site, database, modules, and integration with the supplier.
We can also reduce the budget by using a quality ready-made template as a base and leaving only the necessary custom modifications.

Budget: 5000 UAH Deadline: 7 days

Hello!
I have reviewed the detailed specifications for updating the online store bp.ua. The task is completely clear.
I have extensive experience in Full Stack development, working with complex databases, building data import/synchronization systems, and REST APIs. I am ready to take on the technical implementation of the project (Backend + Frontend integration) or complete it "turnkey."
I have a deep background in developing ETL pipelines and systems for processing large volumes of data (100K+ records, parsing XLSX/CSV, automation). I can easily implement controlled migration of catalogs, orders, and clients while preserving all relationships.
I am ready to discuss the details, review the current API documentation from the supplier, and assess the exact timeline and budget for implementation.
You can view my cases on GitHub: github.com/StanislavRudyk
Best regards,
Stanislav Rudyk

Budget: 7100 UAH Deadline: 7 days

Hello, Ruslan.
I work with WordPress constantly — every project is confirmed by client reviews.
I will do exactly what is described, plus I will show how to manage everything through the admin panel.

The final price/timeframe will be provided after all clarifications.

Profile: Freelancehunt
Reviews: Freelancehunt

Budget: 25000 UAH Deadline: 25 days

Good day. I am interested in your project. I can take on the backend and frontend (or one of the two, for example, just the frontend). I will be able to provide the exact cost and timeline after reviewing the detailed specifications, examples (if available), and discussing all the details.

Feel free to write, I would be happy to collaborate! 🤝

======= Why choose me =======

✅ Extensive practical experience working with websites, marketplaces, and AI tools.
✅ Detail-oriented, results-driven, meet deadlines, and always available.
✅ If necessary, I offer better solutions if I see an opportunity to make the project more efficient.

======= Work experience =======

🔹 CMS and builders: WordPress (Elementor, WooCommerce, ACF, Carbon Fields, Gutenberg, Bricks, UX Builder, WPBakery), OpenCart, ocStore, ModX, OkayCMS, Shopify, Webflow, Framer, Bubble.io, Wix, Weblium, Joomla, Magento, Drupal, PrestaShop, Bitrix, Khoroshop.
🔹 Marketplaces: Prom.ua, Rozetka (Pricecreator), OLX, Bigl, Etsy, AutoRIA, Avtobazar, RST, Besplatka, Kidstaff, Klubok, and others.
🔹 AI: ChatGPT, Gemini, Midjourney, Nano Banana, Leonardo AI, and others.
🔹 Tools: Google Workspace, Microsoft Office, FTP, hosting, RDP.
🔹 Graphics and multimedia: Photoshop, Lightroom, Premiere Pro, After Effects, Audition, Figma, FL Studio, Ableton.
🔹 Additionally: HTML, CSS, JavaScript, PHP, MySQL, basic and technical SEO.

⭐ Reviews: Freelancehunt
📁 Portfolio — I will provide in private messages. Expand

Budget: 27000 UAH Deadline: 14 days

Good day. I can take on the backend, frontend, or both parts of the project.
An important technical detail: before migration, it is necessary to confirm the scheme of old URLs to correctly reproduce SEO-URLs and build a map of 301 redirects.
For integration with the supplier, access to the existing custom exchange modifications and examples of API/logs is needed to check the behavior of price and stock imports.
Please let me know what the current scheme for the Russian language on the site is: /ru/ or subdomain or parameter?
For a quick start, please send access to the admin panel of the old site and to staging or database and file dumps, plus an example of the price list (xlsx/csv).

Budget: 3200 UAH Deadline: 3 days

Interesting project. I have experience migrating stores from OpenCart 2.x to 4.x while preserving SEO-friendly URLs, 301 redirects, and bilingual support (uk/ru) through hreflang. I understand the logic of synchronizing the supplier's price list via cron and migrating the blog without losing SEO. I am ready to start with the backend, with initial results in 3 days.

Budget: 3600 UAH Deadline: 3 days

Migration from OpenCart 2.x to 4.x without a direct upgrade, only a clean deployment and transfer of products, orders, and customers while preserving SEO-friendly URLs and a 301 redirect map, I have done this before. I will synchronize with the supplier for prices/stock via cron with an error log, a catalog of 2000+ items is not a problem. I will transfer the bilingual uk/ru and the blog blog.bp.ua while preserving the URL. Please let me know which payment system you plan to use from the three. I will deliver the first stage in 3 days.