Energy Platform
Web App
Product platform with secure flows, admin tooling, and API integrations.
SymfonyDockerMySQL
Founder @ ByteBerry • Lead Software Engineer
Building modern web platforms
with clean architecture.
I’m John Kalpouzos. I ship scalable products with Symfony/Laravel & Docker, and high-performance WordPress/WooCommerce solutions for businesses.
John Kalpouzos
Founder @ ByteBerry • Lead Software Engineer
Symfony
Laravel
Spring Boot
Docker
MySQL
PostgreSQL
Redis
WordPress
What I do
Product-minded engineering & delivery
From architecture → implementation → deployment → monitoring.
Fast outcomes
Clean, maintainable, scalable
Speed without tech debt.
Engagement
Build • Fix • Improve
New builds, migrations, performance + SEO.
Availability
Projects & retainers
Let’s scope it and ship.
Work
Recent roles and the kind of impact I focus on.
ByteBerry — Founder
2023 → now
- WordPress/WooCommerce builds, performance, SEO, and custom integrations.
- Client delivery with clean handoff, documentation, and maintainability.
Lead Software Engineer
Current
- Symfony/Laravel services, Dockerized deployments, scalable architecture.
- Focus on reliability, observability, and predictable delivery.
Projects
Selected work. Clean cards, clear outcomes.
E-commerce Build
WooCommerce
High-performance store with optimized checkout and SEO-first structure.
WordPressWooCommercePerformance
API + Automation
Backend
Background jobs, integrations, caching, and stable deployments.
LaravelRedisCI/CD
Stack
Tools I’m comfortable shipping with.
Backend
Symfony
Laravel
Spring Boot
PHP 8+
JAVA
Infra
Docker
Nginx
Linux
Data
MySQL
Postgres SQL
Redis
Queues
Web
WordPress
WooCommerce
SEO
Contact
Send a message — it goes to info@byteberry.gr.