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Semyon D.
@semik20092
Polonia
Inglés, Ruso
Sobre mí
Backend-focused developer with 12+ years of experience in WordPress, PHP, and JavaScript. I specialize in building scalable backend systems, custom WordPress plugins, REST API integrations, and automation solutions. Strong experience in performance optimization, mass deployment, and server-side architecture. Worked with 250+ websites, achieving high performance (90+ PageSpeed). Also experienced in Linux infrastructure, n8n automation, and building custom tools for business processes. Reliable, fast, and focused on clean, maintainable code.
Habilidades
Semyon D.
desconectado •
Tiempo medio de respuesta: 1 hora
Revisa mis servicios
Corrección de errores
I will fix wordpress errors bugs and issues fast
Sitios web personalizados
I will build a modern react next js saas web application
Porfolio
Experiencia laboral
Confidentials
Freelance • 11 yrs 7 mos
WordPress Developer (Custom Themes)
Dec 2015 - Present • 10 yrs 5 mos
+ Developed custom WordPress themes using ACF and Carbon Fields + Built flexible content structures, meta fields, and admin panels + Implemented scalable architecture for content management + Preferred Carbon Fields over ACF: + Fully free (no paid limitations like ACF Pro) + Covers all core ACF functionality + Cleaner integration via code (no UI dependency) + Better control and portability across projects Skills WordPress, PHP, Carbon Fields, ACF, JavaScript, HTML/CSS Industry Web Development
Automation Engineer / Python Developer
Jul 2025 - Feb 2026 • 7 mos
+ Automated backlink verification across partner websites (Python parser) + Increased processing speed from ~100 sites/day to 4,000–5,000 links/hour + Boosted productivity by ~3000–4000% + Eliminated manual проверки через DevTools и Ctrl+F + Freed SEO specialist time for higher-value tasks + Improved accuracy and scalability of link audits Skills Python, JavaScript, Linux, Ubuntu, GitHub Actions Industry iGaming
Python Developer / SEO Automation Engineer
Jul 2025 - Feb 2026 • 7 mos
+ Developed custom SEO crawler “Limefrog” (analog of Screaming Frog) + Built web-based tool for full technical audit of websites + Parsed 300+ sites and выявил критические ошибки за 1–2 дня + Detected issues: 4xx/5xx responses, noindex/nofollow, missing lang, broken 404, + invalid titles/descriptions, missing alt, неправильная структура H1-H6 + Generated structured XLS reports for fast filtering and analysis + Reduced audit time from days/weeks to hours + Delivered production-ready tool in ~2 weeks + Improved SEO quality and prevented indexing/blocking issues Skills Python, JavaScript, Linux, Ubuntu, GitHub Actions Industry SEO iGAming
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andre_mikhailof
Letonia
Everything was done quickly and smoothly. Semyon understood my issue right away, resolved it fast, and provided helpful recommendations. Will definitely come back again, highly recommended.
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