Debugging a Production Site After AI Deployment — What the Browser Sees vs. What You Shipped
After deploying a portfolio site built with AI, I found broken mobile menus, bullet-point badges, and content overflow — all caused by server-level CSS…
Oleksii Siniaiev · Senior Full-Stack Engineer
Laravel & PHP on the backend, Vue.js & React on the frontend, AWS & Docker under the hood. I ship SaaS platforms, billing engines, and content products end-to-end — 10+ years, zero shortcuts.
Clean architecture, honest code, things that ship.

Latest
Technical articles based on real problems from work. Laravel, WordPress, architecture, performance, and modern PHP.

After deploying a portfolio site built with AI, I found broken mobile menus, bullet-point badges, and content overflow — all caused by server-level CSS…

A complete walkthrough of building a zero-JavaScript, multilingual WordPress theme on Bedrock architecture, deployed to Hostinger — with Claude Code AI doing the heavy…

A practical explanation of Dependency Injection and the Dependency Inversion Principle in Laravel, with examples of when abstractions improve maintainability and testing.
Portfolio
Real projects I've shipped — from content platforms to SaaS products.

Full SaaS platform for WebSpellChecker — subscription billing with Stripe, OAuth authentication, team management, API credential provisioning, and usage analytics.…

Ongoing freelance engineering for one of the world's largest art media platforms. 11 custom plugins, AMP across 45+ templates, Redis…

Corporate website and commercial platform for WebSpellChecker, built from scratch. WooCommerce subscriptions, custom licensing REST API, 4 custom plugins, 15+…
Companies I've worked with
Background
Built my first e-commerce site in high school. Studied law, then chose code. Never looked back.
My journey started with an online store I built for my father's business while I was still in high school. It brought in real customers, and that was enough to make software feel more real than any classroom ever did.
I later earned degrees in law and engineering, but chose code as the path worth doubling down on. Since then I've worked across freelance, outsourcing, and product teams — from WordPress and Laravel builds to SaaS systems, billing, infrastructure, and full-stack product delivery.
What matters to me now is ownership: understanding the whole system, making it reliable in production, and keeping it maintainable for the next person. Outside work, it's gym, hiking in the Spanish mountains, Linux, and whatever hardware project is waiting its turn.
Contact
Best for project context, technical questions, consulting conversations, or direct engineering opportunities. Email is the simplest path.