I’m Senior Frontend & Shopify developer with 9+ years of experience in building and maintaining various complexity Shopify apps and stores.
Skills
Experience Level
Language
Work Experience
Education
Qualifications
Industry Experience
A full-stack website for a photography studio rental business, built as a monorepo with three independently deployable packages. Features multi-language support (i18next), server-side data fetching from a Strapi 4 headless CMS, an integrated booking widget, reCAPTCHA v3, Google Maps, and a Node.js email monitoring bot delivering real-time booking notifications to Telegram.
A privacy-first SaaS web application allowing users to safely inspect shortened or obfuscated URLs before clicking them. Traces the full server-side redirect chain (up to 15 configurable hops), detects phishing indicators across 17 heuristic checks (punycode, IP hosts, mixed scripts, suspicious TLDs, etc.), and strips tracking parameters (utm_*, fbclid, gclid). Offers a Pro tier with bulk processing of up to 200 URLs, CSV export, and shareable results.
A portfolio of multiple commercial Shopify applications on the Shopify App Store serving thousands of active merchants — covering product options, custom pricing, delivery scheduling, Google Calendar integration, and upsell tooling. Each app comprises a Shopify Admin SPA, a Liquid-based Theme App Extension, and a Node.js backend. Several apps earned the Built for Shopify badge.
A full-stack monorepo Shopify app for AI-powered product offer generation. Features a Remix admin dashboard, Python FastAPI backend with PyTorch graph neural networks for offer recommendations, OpenAI API integration, and multiple Shopify UI extensions (checkout, post-purchase, customer account). Serves thousands of active merchants.
A production SaaS Shopify embedded app enabling merchants to convert external social and paid traffic into pre-filled bundle cart sessions. Features shareable cart links, QR codes, an embeddable storefront product carousel widget (Theme App Extension), and per-offer analytics tracking visits, widget views, QR scans, conversions, and revenue.
A Shopify app that lets merchants create, edit, duplicate, and migrate navigation menus between stores. Two stores connect once via a one-time Shopify Billing API charge — after that, the source store can push menus to the destination store unlimited times. Handles broken link detection, duplicate menu handle conflicts, and multi-step validation before each push.
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Wroclaw today.