Losos is an online food-ordering platform specializing in sushi, rolls, drinks, and appetizers. I worked on this project while being part of the IThinkers team, where I contributed to building a fast, scalable, and SEO-optimized web application for a real business.

The client’s main goals were strong SEO performance, high loading speed, and an intuitive UX/UI that works seamlessly across devices. The website operates fully online and supports a complete ordering flow from product selection to checkout.

Project Overview

Industry: Food delivery / Restaurant
Platform: Web application
My Role: Full-stack developer
Company: IThinkers
Technologies: Next.js, Node.js, MySQL, Nginx, VPS

Challenges

Before working on Losos, most of my experience was focused on React SPA applications. However, for a business that invests heavily in customer acquisition, classic SPA solutions are often not enough.

The key challenges were:

Fast initial page load for SEO and ads
Optimized assets and server-side rendering
Correct integration of Google Tags and analytics
High performance under heavy traffic
Flexible design system that can be customized per client

Solution

To meet SEO and performance requirements, I chose Next.js with server-side rendering and static generation where possible. The backend was built with Node.js, and MySQL was used to store orders, users, and related business data.

The project was deployed on a VPS with:

Nginx caching
Frontend caching strategies
Optimized asset delivery

This setup ensured fast page loading and stable performance even during peak traffic.

UI / UX & Design System

The website was built using a template-based design system:

Custom reusable UI components
Client-specific branding (colors, logo, typography)
Easy customization without breaking the core layout

This approach allowed quick adjustments when the client wanted to change visuals or content.

Features

The platform includes a wide range of user-focused features:

User registration and authentication
SMS-based login and verification
Cookies for session persistence (24 hours)
Dark theme support
User preferences saved across visits
Handling unfinished orders
City and language selection
Product recommendations (drinks, sauces, appetizers)
Discounts, weekly sales, and loyalty programs
Order history and favorite items

Access control for certain pages and actions was implemented using Firebase permissions, allowing the client to restrict features based on user roles or behavior.

Admin Panel

Losos also includes a dedicated admin panel, where staff can:

Add, edit, and remove products
Manage categories
Update SEO titles and metadata
Configure addresses and service areas
Control discounts and promotions

Separating the public website and the admin panel made the system more flexible and easier to scale.

Result

The project was successfully delivered, and the client was satisfied with both performance and usability. The website continues to serve real customers and has proven to be reliable under heavy load — in production, it handled 10,000+ concurrent user requests without critical issues.

This project was an important milestone early in my career and gave me valuable experience in building production-ready, high-performance web applications with real business requirements.