Oleksii Siniaiev
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RUUKESEN

Senior full-stack engineer

I build production-grade SaaS, Laravel and WordPress systems.

I own backend architecture, billing, infrastructure and frontend delivery for systems that need to stay maintainable after launch.

10+ years Stripe billing AWS/Docker delivery Laravel + WordPress
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Oleksii Siniaiev

Trusted on production systems for

  • Artnet News high-traffic art media platform
  • WebSpellChecker SaaS and commercial platform
  • DHL corporate/product work
  • WGames product engineering

Portfolio

Selected work

Real projects shipped — from content platforms to SaaS products.

All projects →

Engineering capabilities

What I build with

Backend

  • Laravel
  • PHP
  • MySQL
  • Redis
  • REST APIs

Frontend

  • Vue.js
  • React
  • TypeScript
  • Tailwind CSS

Infrastructure

  • AWS
  • Docker
  • GitHub Actions
  • Linux
  • CI/CD

Product & Commerce

  • Stripe
  • WooCommerce
  • Subscriptions
  • Licensing
  • Analytics

Latest

From the blog

Technical articles based on real work: Laravel, architecture, performance, integrations, and practical engineering decisions.

Articles May 30, 2026 10 min read

Claude Code setup: a beginner’s guide to the AI coding CLI

Step-by-step guide to installing Claude Code, configuring CLAUDE.md, understanding permissions, and running your first real tasks. Practical, no fluff.
Articles May 29, 2026 9 min read

CSS works locally but breaks in production: how LiteSpeed UCSS strips your styles

A real debugging story: the theme worked locally but broke in production because LiteSpeed UCSS stripped CSS rules. How to compare what the browser…
Articles May 20, 2026 14 min read

Claude Code Subagents: Copy-Paste Agents for Safer, Cheaper Workflows

A practical 2026 guide to Claude Code subagents with copy-paste .claude/agents examples for explorer, planner, reviewer, browser testing, model routing, context isolation, and token…

All articles →

About

How I work

I've spent 10+ years building systems that need to stay reliable long after launch. Here's what that looks like in practice.

  1. Own the whole system
  2. Make production boring
  3. Keep code maintainable
More about me →

Work together

Have a production system that needs senior ownership?

Best fit: Laravel/SaaS platforms, complex WordPress systems, billing integrations, performance work, and production debugging.

Email project brief → LinkedIn

Based in Spain · Remote-friendly · EN/RU/UK/ES