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Modern Online Store

An effective and scalable way to sell products or services online, available for growing businesses and those looking to optimize and increase sales results.

Online Store

What is a modern online store and why can it benefit you?

JavaScript programmer
Aplikacja internetowa Next.js E-commerce
React programmer
Aplikacja internetowa Next.js App Router 15
TypeScript programmer
Aplikacja E-commerce - React 19
Node.js programmer
Next.js App Router 15
Next.js programmer
Ecommerce next.js
REST API programmer
Aplikacja internetowa E-commerce TypeScript
JavaScript programmer
Aplikacja internetowa Next.js E-commerce
React programmer
Aplikacja internetowa Next.js App Router 15
TypeScript programmer
Aplikacja E-commerce - React 19
Node.js programmer
Next.js App Router 15
Next.js programmer
Ecommerce next.js
REST API programmer
Aplikacja internetowa E-commerce TypeScript
GraphQL programmer
Aplikacja internetowa E-commerce - Node.js
Docker programmer
Aplikacja Web E-commerce
MongoDB programmer
Next.js & TailwindCSS
PostgreSQL programmer
Aplikacja Next.js App Router 15 & TailwindCSS
Vite programmer
Programista Next.js
GraphQL programmer
Aplikacja internetowa E-commerce - Node.js
Docker programmer
Aplikacja Web E-commerce
MongoDB programmer
Next.js & TailwindCSS
PostgreSQL programmer
Aplikacja Next.js App Router 15 & TailwindCSS
Vite programmer
Programista Next.js

An online store isn't just a platform for sales - it's a strategic tool capable of significantly increasing your business revenue and brand visibility.

Depending on your company's needs, you can implement a simple form with a payment gateway for a single product/service, choose a dedicated solution using modern technologies or WooCommerce based on WordPress, or Shopify/PrestaShop - each of these approaches gives you the freedom to integrate with your ERP, CRM or other services.

Who is it ideal for? For businesses selling both physical and digital products (courses, e-books), as well as service providers wanting to automate the booking or online payment process.

Why distinguish between "custom" and "ready‑made" stores?

  • CUSTOM
    (built from scratch, e.g., using Next.js (React) + Node.js) provide full control and flexibility. Ideal for complex integrations with ERP or unique modules, such as product configurators.
  • READY-MADE
    (e.g., WooCommerce or PrestaShop / Shopify) allow faster market entry and lower initial costs, but require code editing/development or plugin selection and may be more difficult to expand if your business grows in an unexpected direction.
Platforma rezerwacyjna z chatbotem
Platforma rezerwacyjna z chatbotem

# Why choose it? / Business Benefits

  1. Expanded Market Reach
    With a combination of optimization for SEO and AI Overview (React, Next.js, Google Tag Manager, Google Analytics) and attractive design, as well as internalization and localization systems, the store is accessible to clients 24/7 from around the world, increasing reach and potential revenue.

  2. Better Customer Service
    Integrations with CRM or shipping systems allow orders to be processed quickly, and an interactive customer panel allows you to view package status, purchase history and intuitively handle complaints or order modifications.

  3. Higher Conversion Rates
    A simple shopping cart, clear layout and ergonomics of the interface (Usability) reduce shopping cart drop-off, which directly results in increased sales.

  4. Sales Process Automation
    Automatic invoicing, discounting system and loyalty modules allow you to attract clients and build permanent relationships, saving you time - everything can be done automatically.

  5. Scalability and Customization
    The customized variant allows the introduction of typical functions (e.g., customizable product, dynamic pricing), while WooCommerce or Shopify/PrestaShop offer thousands of plugins that can extend functionality even at a later stage of development, which, however, results in optimization, so often simple solutions are coded at the request of the orderer.

  6. Transaction Security
    Responsiveness, Modern UI appearance, SSL encryption, and certified payment operators (Stripe, Przelewy24, PayU) ensure that your clients feel secure when making purchases in your e-store.


# Key Features

  • Performance
    - For dedicated solutions, use Next.js, Node.js or PHP (plus REST API / GraphQL), as well as good DevOps practices (e.g. Docker, auto-scaling) for fast performance, even with heavy traffic.
  • Accessibility
    - correct operation on all devices (mobile-first, UX testing), WCAG compliance as needed.
  • Security
    - SSL certificates, integration with trusted payments (Stripe, PayU, Przelewy24), anti-tampering solutions and possibly plugins or feature coding in the case of WordPress, as well as constant updates.
  • Interactivity
    – clear shopping cart, live chat, advanced product filtering and sorting, tailored to business needs.
  • Easy maintenance and development
    - ability to quickly deploy patches and new functionality through CI/CD and version control (Git, GitHub, GitLab) for dedicated solutions.
  • Optimization for SEO
    - friendly link (URL) generation, fast page load times (Vite, Gatsby, Next.js SSR/SSG), integration with Google Tag Manager, Google Analytics.
  • Usability
    – well-designed admin panel (e.g., WooCommerce, PrestaShop / Shopify, custom back-ends, dedicated Stripe for store management), intuitive checkout and payments.
  • Reliability
    – load testing, application performance monitoring, and efficient servers (e.g., Vercel, AWS, Cloudflare).
  • Affordability
    - flexible solutions: from simple stores based on ready-made templates, to complex projects with original graphics and integrations in a dedicated model.
  • Mobile Device Optimization
    – layout designed in Figma, tested on various resolutions.
  • Integration with Any System
    – e.g., your own inventory (ERP), CRM, newsletter, shipping, and order processing.
  • Responsiveness
    – clean design that adapts to the user's screen, from smartphone to large monitor.

# Types and Development/Expansion Possibilities

# Custom Online Store with REST API / GraphQL

A "tailor-made" solution – ideal for companies that require non-standard functionalities (e.g., product configurator, advanced discount rules).
Development possibilities: any integration (ERP, CRM, analytics), cloud scaling, creating separate front-ends (e.g., mobile applications).

# WooCommerce (WordPress)

The most desired and popular e-commerce platform based on WordPress for which I have a rich repository and my own theme. Development possibilities: thousands of plugins to expand functionality (loyalty programs, shipping integrations, marketing). Quick market entry while maintaining moderate cost.

# PrestaShop / Shopify

A good alternative to WooCommerce for medium-sized stores and those that prefer a system created strictly for e-commerce.
Development possibilities: rich ecosystem of modules, easy handling of multiple languages and currencies, but may require specialist support for complex integrations.

# Store with Client Backend Integration (ERP/CRM system)

A useful option if you have extensive infrastructure and want to fully automate the sales process (inventory updates, invoicing).
Development possibilities: integrations with accounting systems, logistics, personalized discounts depending on the contractor, B2B sales.

# Store with Booking and Payment Function

For service industries (e.g., beauty salons, personal trainers) – clients not only buy products but also book appointment times or consultations.
Expansion possibilities: loyalty programs, customer database with order history, discounts for regular clients.


# Technologies and Tools

  • JavaScript / TypeScript / Node.js – flexible environment for building front-end and back-end parts.
  • React, Next.js – provide dynamic, efficient interface and facilitate SEO (SSR/SSG).
  • PHP (Laravel, Symfony) - proven technologies for building the back-end, especially for WordPress.
  • WordPress & WooCommerce - the most popular CMS, ideal for building simple stores and blogs.
  • Shopify / PrestaShop / Shopify - popular “ ready-made” solutions with a wide ecosystem of developments.
  • Docker – containerization and easy project deployment in any environment.
  • MongoDB, PostgreSQL – databases suitable for various project types (extensive analytics, large order volume).
  • Git / GitHub / Gitlab – versioning and deployment automation (CI/CD).
  • Vercel, AWS, Cloudflare – hosting and cloud providing stability and scalability.
  • Figma – interface design and UX prototyping.
  • Google Tag Manager, Google Analytics, Google Ads – tools for monitoring traffic and conducting marketing campaigns.
  • Stripe / Przelewy24 / PayU – secure and fast online payments, including subscriptions (stripe).

# Example Implementations / Use Cases

  1. Custom Next.js application integrated with clients backend
    The largest catalog of spare parts for maintenance. E-commerce application written using modern technologies that connects with the clients backend. Catalog of over 3,000,000 products. Database of over 10,000 manufacturers.

    Adres strony: aserto.pl

    Largest catalog of spare parts for maintenance Largest catalog of spare parts for maintenance
  2. Course Platform and WooCommerce Store
    Custom theme and WP template with WooCommerce and LMS Tutor Pro. Custom solution using proven technologies, in basic version.

    Adres strony: kursymedyczne.online

    Course Platform and WooCommerce Store Tutor LMS Pro and WooCommerce

# Collaboration Process / Methodology

  1. Contact & Needs Analysis A conversation or workshop helps determine if a simple form with payment or WooCommerce is enough, or if a “Custom” implementation (React + Node.js / PHP) is advisable. Together we define key features (e.g. B2B panel, product configurator, ERP integrations).

    • How much does a dynamic website cost? Get a quote: click here!.
    • Get a quote for another type of website, store or dedicated application: Click here!.
    • Make an online appointment (Workshop, Site or Store Audit, Consultation, SEO Analysis): Click here!.
  2. UI/UX Design For the dedicated option: I prepare mockups and prototypes in Figma, which are then tested for usability (UI/UX). We work with you to determine what the homepage, categories, product and other key elements should look like. Mobile-first design with responsiveness and accessibility in mind.

  • Prototype - visualization of the user interface (UI) and user experience (UX).
  • Design system - a set of principles and components for creating consistent interfaces.
  • Interactive prototypes - enable testing of functionality before implementation.
  • Utility tests - studies that help understand how users use the application and what can be improved.
  • Feedback collection - analyze user feedback and make improvements.

For the finished option: I choose a suitable template from the repositories (e.g. Own repo, Envato, ThemeForest) and customize it according to your needs.

  1. Architecture and Configuration I prepare the architecture of the system, databases and integration. For the dedicated option, I build the back-end (Node.js or PHP) and the front-end (React + Next.js). In the case of WooCommerce, I configure WordPress and WooCommerce, as well as the necessary plugins.

  2. Implementation & Testing I implement the system on the production server, perform functionality, performance and security testing. I use CI/CD tools to automate the deployment process. For the dedicated option, I use Docker and containerization to ensure easy deployment and scaling.

  3. Publication and post-launch support Once testing is complete, I publish the store online. I provide training on how to use the admin panel and provide technical support in the first months after launch. I provide warranty depending on the contract: minimum 6, 12, 24 months.

  4. Maintenance and Development I provide system updates, transaction security, and support for advertising campaigns (Google Ads, Facebook Ads). Further integrations (e.g. marketing automation, loyalty program) are optional.

Timeline From several days (simple store with standard functionality) to several months (extensive, custom projects with advanced integrations). All based on a set schedule, taking into account your priorities. I recommend an agile approach, regular meetings and preliminary workshops.

Do you need a completely dedicated solution? Your project goes beyond the framework of a “regular” online store? Check also: Dedicated Web Application.

JavaScript
React
TypeScript
Node.js
Next.js
REST API
GraphQL
Docker
MongoDB
PostgreSQL
Vite
SASS
HTML5
CSS3
JavaScript
React
TypeScript
Node.js
Next.js
REST API
GraphQL
Docker
MongoDB
PostgreSQL
Vite
SASS
HTML5
CSS3
Git
Github
Gitlab
Vercel
OpenAI
AWS
Cloudflare
WooCommerce
Strapi
Figma
Stripe
Google Tag Manager
Google Analytics
Google Ads
Git
Github
Gitlab
Vercel
OpenAI
AWS
Cloudflare
WooCommerce
Strapi
Figma
Stripe
Google Tag Manager
Google Analytics
Google Ads

Check my area of expertise below

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One of the many advantages of working with me is the multitude of themes, templates and components I can use in your project to deliver the quality you need. I also specialize in coding UI/UX based on provided or already created designs (FIGMA | Adobe | Sketh).

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