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Olena

SEO & Content Marketing
Service description
I am a senior PHP developer with around eight years of commercial experience, and over that time I have focused almost entirely on the backend — the part of a product that has to stay reliable when real money and real users are involved. Most of my work has revolved around payment integrations and REST API architecture, so I am comfortable designing a clean data schema, wiring up a gateway, handling webhooks and refunds, and making sure the whole thing keeps running under load.

I write in modern PHP 8 with Laravel or Symfony when a framework helps, and in plain PHP when a project calls for something lighter. Whatever the stack, I treat security as a first-class concern rather than an afterthought, following the OWASP Top 10 and validating every boundary where user input meets the system. I can take full ownership of a project from planning to deployment, or slot into an existing team and pick up the backend load without a long ramp-up.

Communication matters to me as much as code: I keep clients updated daily, flag risks early, and leave behind documentation that the next developer can actually read.

What I offer
— PHP 8 — Laravel, Symfony, pure PHP
— Payment APIs — Stripe, PayPal, custom gateways, webhook handling
— Databases — MySQL, PostgreSQL, Redis
— Infrastructure — Docker, Nginx, Linux, CI/CD
— API design — REST, OpenAPI 3.0, JWT auth
— Clean, documented, security-first code with daily updates
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Listing author: Olena