07/08/2026 updated
100 % available
Senior Full Stack Developer | Magento 2 & Shopware Expert | E-Commerce Architecture
Łódź, Poland
Worldwide
universityLAMP StackDevOpsE-CommerceWooCommerceBackendAdobe MagentoFull Stack DevelopmentShopware
Magento 2 & Shopware Development
Expertise in Magento 1/2 and Shopware 5/6 development, including custom modules, API integrations (REST/GraphQL/SAP), high-load optimizations with Redis and ElasticSearch, and greenfield architecture for large-scale B2B/B2C e-commerce platforms.
Full Stack Development (LAMP & JS Stack)
Advanced proficiency in the LAMP stack as well as full JavaScript stack development using Node, React/Vue, MongoDB, and PostgreSQL. Experience with PHP, JS, TypeScript, Python, and various frameworks including Laravel, Symfony, and Phalcon.
DevOps, CI/CD & Cloud Infrastructure
Hands-on experience with CI/CD pipelines using GitHub Actions, Jenkins, deployHQ, and bash deploy scripts. Familiar with server setup, configuration, and administration (Apache, Nginx), as well as cloud/on-prem hybrid setups and Docker-based environments.
API Integrations
Extensive experience working with REST, SOAP, and GraphQL APIs from both ends, including ERP, marketplace, PIM, payment gateway, and social media integrations.
Caching, CDN & Performance Optimization
Experience with caching solutions, CDN, stress-testing, and monitoring tools such as Cloudflare, Pingdom, New Relic, Grafana, and Kibana. Skilled in analyzing waterfall charts, Lighthouse reports, Page Speed Insights, and Google Analytics.
Observability & Monitoring
Proficiency in setting up and using observability and monitoring tools including New Relic, Grafana, Kibana, and Redis/ElasticSearch/Kibana stacks for high-traffic backend systems.
AI Support Tools & Agentic Coding
Familiarity with AI support tools and agentic coding environments including Claude, Cursor, and Junie.
Workflow & Versioning Solutions
Familiar with workflow and versioning tools including Jira (and the Atlassian stack in general), Asana, Mantis BT, Slack, Trello, Teamwork, SVN, CVS, Git, and GitLab.
CMS & Framework Diversity
Experience with TYPO3, Indexhibit, Joomla, redDOT, cakePHP, Yii, WordPress, Drupal, WooCommerce, and the MEVN stack CMS.
Certifications
Certified in RedDot CMS training, Shopware Developer Advanced, and Magento Certified Expert.
Expertise in Magento 1/2 and Shopware 5/6 development, including custom modules, API integrations (REST/GraphQL/SAP), high-load optimizations with Redis and ElasticSearch, and greenfield architecture for large-scale B2B/B2C e-commerce platforms.
Full Stack Development (LAMP & JS Stack)
Advanced proficiency in the LAMP stack as well as full JavaScript stack development using Node, React/Vue, MongoDB, and PostgreSQL. Experience with PHP, JS, TypeScript, Python, and various frameworks including Laravel, Symfony, and Phalcon.
DevOps, CI/CD & Cloud Infrastructure
Hands-on experience with CI/CD pipelines using GitHub Actions, Jenkins, deployHQ, and bash deploy scripts. Familiar with server setup, configuration, and administration (Apache, Nginx), as well as cloud/on-prem hybrid setups and Docker-based environments.
API Integrations
Extensive experience working with REST, SOAP, and GraphQL APIs from both ends, including ERP, marketplace, PIM, payment gateway, and social media integrations.
Caching, CDN & Performance Optimization
Experience with caching solutions, CDN, stress-testing, and monitoring tools such as Cloudflare, Pingdom, New Relic, Grafana, and Kibana. Skilled in analyzing waterfall charts, Lighthouse reports, Page Speed Insights, and Google Analytics.
Observability & Monitoring
Proficiency in setting up and using observability and monitoring tools including New Relic, Grafana, Kibana, and Redis/ElasticSearch/Kibana stacks for high-traffic backend systems.
AI Support Tools & Agentic Coding
Familiarity with AI support tools and agentic coding environments including Claude, Cursor, and Junie.
Workflow & Versioning Solutions
Familiar with workflow and versioning tools including Jira (and the Atlassian stack in general), Asana, Mantis BT, Slack, Trello, Teamwork, SVN, CVS, Git, and GitLab.
CMS & Framework Diversity
Experience with TYPO3, Indexhibit, Joomla, redDOT, cakePHP, Yii, WordPress, Drupal, WooCommerce, and the MEVN stack CMS.
Certifications
Certified in RedDot CMS training, Shopware Developer Advanced, and Magento Certified Expert.
Experience
Professional experience10+ years
Freelancer since1996
Languages
GermanBasic knowledgeEnglishFluentPolishNative speakerSpanishBasic knowledge
Project history
Founding engineer of own project built with Go/Postgres/JS. Fast and lightweight, developer-friendly, dependency-free ecommerce stack. Greenfield project covering architecture, technical specs, server and env setup from ground up, whole development workflow, hexagonal architecture, TDD, event-driven architecture, and modular architecture. Work in progress at https://github.com/akarso/shopanda.
Led greenfield Magento 2 project including architecture, technical specs, AEM/SAP integrations via GQL/REST/microservices, and cloud/on-prem hybrid setup. Mentored 15 developers as de facto tech lead through proactive design and option analysis. Enabled expansion into new markets (buildings/offices) with performant, scalable backend.
Maintained and optimized high-load tyre wholesale site (leading Germany) using Redis/ElasticSearch/Kibana/New Relic for a 20-dev backend team. Rolled out features and fixed live issues under pressure; contributed to system architecture for automotive B2B scale.