Hi, I’m Piotr — Senior WordPress & WooCommerce Engineer with 15+ years delivering production-grade websites, e-commerce systems, and custom applications. I build reliable, scalable, high-quality WordPress solutions — from UX and architecture to custom development, performance, security, and deployment. --- Core Expertise WordPress Engineering - Custom themes (ACF, Gutenberg, Understrap, hybrid builds) - Custom plugins, endpoints, admin tools, CRON workflows - Multisite, migrations (incl. Drupal → WP), WP REST API - Scalable architecture & long-term maintainability WooCommerce Development - Subscriptions, marketplaces, bundles, B2B & gated access - Custom product flows & checkout experiences - Multi-vendor logic, vendor dashboards, price/visibility rules - Performance tuning for large or complex catalogs Frontend Development - JavaScript, Vue.js 3, SPA patterns, API integrations - Custom UI components, micro-interactions (GSAP, Rellax, Swiper) - High-polish UI from Figma, accessible & responsive layouts - Fast, lightweight, maintainable frontend architecture Performance, Security & Infrastructure - Core Web Vitals, caching strategy, PageSpeed optimization - Debugging heavy builds, async/event-driven workflows - Security audits & hardening for enterprise-grade deployments - Cloudflare, WP Engine, VPS hosting, CI/CD basics Product & Delivery - UX/UI collaboration, wireframes, component systems - Technical discovery, scoping, estimation, backlog creation - End-to-end delivery (design → dev → launch → maintenance) - Clear communication & long-term partnership mindset --- How I Work - Independent execution with full ownership - High communication standards (updates, demos, documentation) - Fast delivery, stable results, scalable architecture - Reliable long-term partner — many clients stay for years --- If you need a senior engineer who can take your project from idea to production — let’s talk.

Piotr Śliwa

Hi, I’m Piotr — Senior WordPress & WooCommerce Engineer with 15+ years delivering production-grade websites, e-commerce systems, and custom applications. I build reliable, scalable, high-quality WordPress solutions — from UX and architecture to custom development, performance, security, and deployment. --- Core Expertise WordPress Engineering - Custom themes (ACF, Gutenberg, Understrap, hybrid builds) - Custom plugins, endpoints, admin tools, CRON workflows - Multisite, migrations (incl. Drupal → WP), WP REST API - Scalable architecture & long-term maintainability WooCommerce Development - Subscriptions, marketplaces, bundles, B2B & gated access - Custom product flows & checkout experiences - Multi-vendor logic, vendor dashboards, price/visibility rules - Performance tuning for large or complex catalogs Frontend Development - JavaScript, Vue.js 3, SPA patterns, API integrations - Custom UI components, micro-interactions (GSAP, Rellax, Swiper) - High-polish UI from Figma, accessible & responsive layouts - Fast, lightweight, maintainable frontend architecture Performance, Security & Infrastructure - Core Web Vitals, caching strategy, PageSpeed optimization - Debugging heavy builds, async/event-driven workflows - Security audits & hardening for enterprise-grade deployments - Cloudflare, WP Engine, VPS hosting, CI/CD basics Product & Delivery - UX/UI collaboration, wireframes, component systems - Technical discovery, scoping, estimation, backlog creation - End-to-end delivery (design → dev → launch → maintenance) - Clear communication & long-term partnership mindset --- How I Work - Independent execution with full ownership - High communication standards (updates, demos, documentation) - Fast delivery, stable results, scalable architecture - Reliable long-term partner — many clients stay for years --- If you need a senior engineer who can take your project from idea to production — let’s talk.

Available to hire

Hi, I’m Piotr — Senior WordPress & WooCommerce Engineer with 15+ years delivering production-grade websites, e-commerce systems, and custom applications. I build reliable, scalable, high-quality WordPress solutions — from UX and architecture to custom development, performance, security, and deployment.


Core Expertise

WordPress Engineering

  • Custom themes (ACF, Gutenberg, Understrap, hybrid builds)
  • Custom plugins, endpoints, admin tools, CRON workflows
  • Multisite, migrations (incl. Drupal → WP), WP REST API
  • Scalable architecture & long-term maintainability

WooCommerce Development

  • Subscriptions, marketplaces, bundles, B2B & gated access
  • Custom product flows & checkout experiences
  • Multi-vendor logic, vendor dashboards, price/visibility rules
  • Performance tuning for large or complex catalogs

Frontend Development

  • JavaScript, Vue.js 3, SPA patterns, API integrations
  • Custom UI components, micro-interactions (GSAP, Rellax, Swiper)
  • High-polish UI from Figma, accessible & responsive layouts
  • Fast, lightweight, maintainable frontend architecture

Performance, Security & Infrastructure

  • Core Web Vitals, caching strategy, PageSpeed optimization
  • Debugging heavy builds, async/event-driven workflows
  • Security audits & hardening for enterprise-grade deployments
  • Cloudflare, WP Engine, VPS hosting, CI/CD basics

Product & Delivery

  • UX/UI collaboration, wireframes, component systems
  • Technical discovery, scoping, estimation, backlog creation
  • End-to-end delivery (design → dev → launch → maintenance)
  • Clear communication & long-term partnership mindset

How I Work

  • Independent execution with full ownership
  • High communication standards (updates, demos, documentation)
  • Fast delivery, stable results, scalable architecture
  • Reliable long-term partner — many clients stay for years

If you need a senior engineer who can take your project from idea to production — let’s talk.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Work Experience

Freelance Web Developer & Designer at Decodio.pl
January 1, 2013 - Present
Building advanced WooCommerce/Shopware solutions, custom checkout, API work, CWV optimization. Caching, debugging, integrations, and Agile collaboration with UX/backend teams. Custom themes/plugins, ACF, CPT, Gutenberg, WP REST API, Page Speed optimization. SEO, migrations, UI-focused builds, long-term cooperation with US clients. Frontend for WP/Kentico/Umbraco, RWD, UI components, animations.

Education

IT Engineer at WSEP iN M / Kielce
January 1, 2005 - January 1, 2009
Pharmacy Technician at Kielce
January 1, 2006 - January 1, 2008

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services