About · Developer since 2005
Jonas Stenild. Built on curiosity.
E-commerce developer with 20+ years of PHP experience. Building production-ready plugins for merchants across every major platform. Currently at Matas A/S in Denmark.
Let’s build something together
DEVELOPER. PROBLEM SOLVER. HUMAN.
The human side
Good code starts with curiosity.
Jonas Stenild
I started writing PHP and building for the web back in 2005. What began as curiosity quickly became a career - and over the past two decades, I have worked my way through nearly every layer of the e-commerce stack. From storefront templates to backend APIs, from database optimization to deployment pipelines, I have built it all.
My background, experience & focus
My deepest experience lies in Magento, Shopware, Symfony, and WordPress. I have spent thousands of hours inside these codebases - building custom modules, debugging complex business logic, and architecting solutions that hold up at scale. I understand how these platforms think, and I know where they break.
Today, my primary focus is building plugins that solve real problems for merchants and developers. I do not build bloatware. Every plugin I ship is lean, well-tested, and designed to integrate cleanly with the platform it runs on. I believe plugins should make stores faster, not slower - and that the best code is the code you do not have to think about after you install it.
I build solutions for Shopware, WooCommerce, Shopify, and Magento. Working across four major commerce ecosystems lets me bring proven patterns from one platform to another. Explore the platform pages for plugins, apps, and their current availability.
When I am not building plugins, I work as a developer at Matas A/S - Denmark's largest health and beauty retail chain - where I build and maintain e-commerce features at scale using Shopware 6, Magento 2, Symfony, and Vue.js. Working at that scale keeps my skills sharp and my perspective grounded in what actually matters: performance, reliability, and code that the next developer can understand.
Experience in practice
A career in commerce.
- PresentMatas A/SDeveloper
Building and maintaining e-commerce features at scale for Denmark's largest health and beauty retailer. Working daily with Shopware 6, Magento 2, Symfony, and Vue.js. Responsible for plugin development, third-party API integrations, process automation, and performance optimization under heavy production traffic.
- Evermart ApSCTO
Led the technical direction of the company as Chief Technology Officer. Oversaw full-stack development of Magento-based e-commerce platforms, mentored junior developers, introduced CI/CD pipelines, and established development standards and code review processes that improved delivery speed and code quality.
- Sinful GroupMagento Developer
Developed custom Magento modules, Symfony components, and WordPress solutions for a fast-growing e-commerce company. Built backend logic tailored to complex multi-market business workflows, handled payment integrations, and contributed to international expansion projects.
- onlineBRAND ApSWeb Developer
PHP-based e-commerce development across multiple platforms including Magento, Joomla, and WordPress. Built custom themes, plugins, and integrations for a variety of clients in different industries.
- Lee Hansen IT ApSWeb Developer
Led daily operations and PHP development over nearly a decade. Built a proprietary 3D chat platform from the ground up, developed numerous web applications, and gained deep foundational experience in server administration, database design, and full-stack PHP development.
Tech Stack
Different platforms. The same care.
The tools and platforms I use daily to build production-ready e-commerce plugins and applications.
The full toolkit PHP · Symfony · Vue.js · GraphQL
Certifications
Always something new to learn.
Verified credentials from industry-recognized platforms - covering development, databases, APIs, and AI.
HackerRankSQL (Advanced)
Advanced SQL skills including complex queries, joins, subqueries, window functions, and database optimization.
Verify credentialHackerRankJavaScript (Intermediate)
Intermediate JavaScript proficiency including ES6+, async programming, closures, prototypes, and DOM manipulation.
Verify credentialHackerRankREST API (Intermediate)
Intermediate REST API skills covering HTTP methods, authentication, pagination, rate limiting, and API design patterns.
Verify credentialHackerRankPython (Basic)
Python fundamentals including data types, control flow, functions, OOP basics, and standard library usage.
Verify credentialGoogle SkillshopGoogle Analytics Certification
Google Analytics 4 proficiency - property setup, data collection, reporting tools, and measuring the effectiveness of online marketing efforts.
Verify credentialAnthropic AcademyClaude with Google Cloud's Vertex AI
Deploying and integrating Claude models through Google Cloud's Vertex AI platform for enterprise AI applications.
Verify credentialAnthropic AcademyBuilding with the Claude API
Building applications with Anthropic's Claude API - covering prompting, tool use, streaming, and production integration patterns.
Verify credentialAnthropic AcademyClaude Code in Action
Hands-on certification for Claude Code - Anthropic's AI-powered development tool for code generation, debugging, and software engineering workflows.
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Want to work together?
Whether you need a custom e-commerce plugin, technical consulting, or a dedicated freelance developer - I'm available for remote projects worldwide.