Hire the Best Shopify Developers
in Lithuania

Your Meta says 40 purchases. GA4 says 28. Your store says 19. Which number do you trust when you decide where to put the next $1,000? I'm a conversion tracking and attribution specialist, and I got here the hard way: I build and run my own ecommerce stores. When the numbers are your own revenue, you can't hand-wave tracking, you have to make it actually work. That's why I know this cold, not from a course, but from fixing it on a live store taking real orders. That gap between platforms isn't a rounding error. It's iOS, ad blockers, cookie consent and browser-only pixels quietly dropping events, so ad platforms optimize on bad data and your ROAS looks worse than it is. I fix it at the source. What I do: - Meta Pixel + Conversions API (CAPI) with shared event_id deduplication. I built this from scratch as a custom mu-plugin on my own live WooCommerce store: browser and server events fire together, deduplicated, so Meta counts each sale once and optimizes on clean data - GA4 setup, audits, and "why don't these numbers match" reconciliation across Meta, GA4 and your store - AI / LLM traffic attribution: ChatGPT, Perplexity and Gemini buyers usually land in GA4 as Direct, and I recover them server-side into a dedicated AI Assistant channel - Google Tag Manager and server-side GTM (Stape) - Google Ads conversion tracking and Enhanced Conversions - Consent mode and GDPR-compliant tracking that still recovers signal - Ecommerce, lead, form and call attribution I also build and run my own Shopify and WooCommerce stores, which is why I read a storefront the same way I read a tag. When I fix your tracking, I understand what it runs on. My proof isn't a slide deck, it's the live store I built and track myself, where the tracking and the storefront both have to work because it's my money on the line. I'm not learning CAPI on your account. I already shipped it on mine.

I build everything your Shopify business needs — from pixel-perfect custom themes to feature-rich apps with deep logic and integrations. I work with classic theme stacks (Online Store 2.0) and headless architectures (Storefront API + Next.js/Hydrogen, CMS), and I focus on performance (Core Web Vitals), accessibility (WCAG), maintainable architecture, and smooth releases. What I deliver: - Custom Themes (OS 2.0): sections/blocks, JSON templates, metafields/metaobjects, multilingual/Markets, pixel-perfect design fidelity. - Advanced Customizations: product personalization with live preview, dynamic pricing, subscriptions, upsell/cross-sell, bundles, promo widgets. - Shopify Apps: public (App Store) and private (internal), Theme/App/UI Extensions, Shopify Checkout Functions and Checkout Extensibility. - Shopify Plus: scaling, custom checkout logic, multi-market scenarios, ERP/CRM integrations, automations. - Headless Shopify: Storefront API/GraphQL, Next.js / Hydrogen / Remix, headless CMS integrations (Sanity/Contentful, etc.), caching, webhooks. - Performance & Accessibility: audits, improvement plans, green Core Web Vitals, WCAG compliance without compromising design. Tech Stack: HTML, CSS, JavaScript, jQuery, React, TypeScript, Redux, Next.js, Node.js, SQL, MongoDB, PHP, Rust. Liquid (Shopify template language), WCAG. APIs & Tools: Storefront/Admin (REST & GraphQL), Webhooks, App Bridge, Theme App Extensions, Checkout Extensibility/Functions. What you get: A single expert who can own both themes and apps (public/private), build a headless storefront, and implement custom checkout on Shopify Plus — with clear timelines, clean handover docs, and post-launch support.

I move stores from WooCommerce to Shopify and keep everything that matters: the catalog, the full order and customer history, discounts, content, and search rankings. These migrations are where WordPress depth and Shopify depth both pay off, and I have both. Years as a freelance WordPress developer, then years building on Shopify, including themes on the Shopify Theme Store trusted by 800+ stores. The hard part isn't exporting data, it's landing it in the right Shopify structure: orders that reconcile to the cent, refunds, guest customers, data buried in WooCommerce plugins, and redirects that protect your SEO. I build a custom import pipeline per store, validate it before go-live, and reconcile against the source when it's done, then set up payments, shipping, taxes, Markets, and languages so you launch a store that's actually ready. I can take the whole move to launch from payments, shipping and carrier setup, taxes, Shopify Markets and multiple languages, theme setup and customization, to the cutover itself and stick around afterward for the theme work, conversion improvements, and maintenance that follow. Happy to talk through your store and scope the move.

Experienced full stack engineer specializing in Shopify e-commerce solutions. Proficient in front-end technologies like Vue, React, JavaScript, HTML/CSS, and Shopify Liquid, alongside back-end expertise in Laravel, Node.js, Python/Django, Ruby on Rails, and databases such as PostgreSQL.