Senior Next.js + Laravel Performance Optimization Expert Needed (Frontend + Backend)

We are looking for a highly experienced full-stack developer who specializes in performance optimization for large-scale e-commerce platforms built with Next.js and Laravel.

This is not a basic website project. Our platform handles a very large product catalog and integrates heavily with external APIs, so we need someone who truly understands performance bottlenecks, caching strategies, database optimization, API optimization, and scalable architecture.

We are looking for a long-term developer who can permanently solve performance issues, not apply temporary fixes.

About Our Platform

Our website is a digital gaming marketplace similar to G2A / Eneba.

Current Stack
Frontend: Next.js
Backend/Admin: Laravel
Search Engine: Meilisearch
Infrastructure: VPS + CyberPanel + OpenLiteSpeed
CDN: Cloudflare
Process Manager: PM2
API Integration: G2A API
How Our System Works
We sync products, stock, and pricing from the G2A API
Our catalog contains around 100,000+ products
Prices and stock are updated frequently
Meilisearch is used for fast search indexing
The frontend consumes backend APIs and product data dynamically
We also run scheduled sync jobs and background workers
Main Issues We Need Fixed
Frontend Performance Issues (Next.js)

We need optimization for:

Slow shop/category page loading
Long initial load times
Slow API response handling
Rendering bottlenecks
Excessive client-side requests
Poor caching strategy
Slow filtering/sorting/pagination
Hydration/rendering problems
High TTFB and poor Lighthouse scores

The main focus is improving the shop page performance permanently and making it feel extremely fast like large gaming marketplaces such as Eneba.

Backend Performance Issues (Laravel)

We need optimization for:

Slow product listing page in admin panel
Heavy database queries
Poor pagination performance
Inefficient Eloquent queries
Slow counting/statistics queries
Caching improvements
Queue/job optimization
API response optimization
Redis/database optimization
Meilisearch indexing optimization
Better cron/sync handling
Important Requirements

You MUST have experience with:

Next.js optimization
Laravel optimization
Large-scale databases
API-heavy systems
Redis caching
Meilisearch or similar search engines
SQL query optimization
VPS/server optimization
SSH and GitHub workflows
Linux server management

Experience with large e-commerce systems is highly preferred.

What We Expect
Real debugging and analysis
Finding the ROOT cause of issues
Clean and scalable fixes
Permanent solutions
Proper testing before deployment
Good communication
Daily progress updates
Ability to work directly on live/staging servers through SSH
Important

Please DO NOT apply if:

You only do basic frontend development
You are inexperienced with performance optimization
You cannot work with large databases/APIs
You do not have experience debugging real production issues

When applying, please include:

Your experience with Next.js + Laravel
Similar large-scale projects you worked on
Your experience optimizing APIs/databases
Your expected timeline
How you would approach debugging and optimization for this type of system

We are looking for a serious expert developer for a long-term collaboration.