Open to opportunities

Selmène User

@selmneuser

Message

Shopify Full-Stack Developer building custom themes, deep integrations, and conversion-focused e-commerce experiences.

France

Message

What I'm looking for

I’m looking for a growth-focused team where I can build custom Shopify themes, deliver deep integrations, and optimize performance/technical SEO and conversion end-to-end—while using AI-assisted tooling to ship clean, production-ready code.

I’m a hands-on full-stack Shopify developer with 4 years building and scaling custom Shopify / Shopify Plus stores for premium consumer and DTC brands. I create themes from scratch—Liquid sections/blocks, JSON templates, metafields—and turn Figma into pixel-accurate, responsive storefronts.

I go deep on third-party apps, API integrations, and custom features. I hardened a Symfony connector between Shopify and the Cegid/ORLI ERP (bidirectional product/stock/price/order sync with an embedded Polaris app) and led a full PrestaShop to Shopify migration (~1,200 products, 28 languages) with a real-time engraving configurator.

I optimize for speed, technical SEO, and conversion using Core Web Vitals and Lighthouse, and I build Klaviyo and Shopify transactional email. I work comfortably across React, GraphQL, and Python, and I’m an AI-native builder running my own tooling on Claude Code.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

Freelance

Oct 2025 - Present (9 months)

Delivered end-to-end Shopify and React/Next.js engagements independently, shipping production code with AI-assisted development.

Shopify React Next.js Claude Code

Current

Full-Stack Developer - Shopify specialist

Current

Mashvp

Oct 2022 - Present (3 years 9 months)

Built and scaled custom Shopify/Shopify Plus storefronts, translating Figma into responsive, pixel-accurate themes and reusable sections/blocks. Implemented third-party app integrations and custom features via Storefront/Admin API (GraphQL), including a Symfony↔Shopify ERP connector and led a PrestaShop to Shopify migration while optimizing for performance, technical SEO, and conversion.

Buros Developer

ElementRoot

Jul 2022 - Aug 2022 (1 month)

Developed a full-stack web application for a dental laboratory using Symfony/PHP and gathered requirements directly with clients during a fixed-term engagement.

Symfony PHP Full Stack Web Development Requirements Gathering