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Senior Magento 2 Developer (m / f / d) – Hyvä • Performance • AI

subtel GmbH

Köln

Remote

EUR 60.000 - 85.000

Vollzeit

Vor 2 Tagen
Sei unter den ersten Bewerbenden

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Zusammenfassung

A leading company in battery solutions is looking for a Senior Magento 2 Developer to optimize their online store and enhance user experience. This remote role requires extensive Magento expertise, experience with performance optimization, and leveraging AI tools to improve services. Join a dynamic team where you can make impactful contributions and develop your skills further in a flexible working environment.

Qualifikationen

  • 5+ years Magento 2 experience, including one live Hyvä project.
  • Enterprise module development skills with PSR-4 autoloading.
  • Experience with performance optimization using Varnish and CDN.

Aufgaben

  • Maintain and optimize high-traffic Hyvä store by identifying performance bottlenecks.
  • Deliver new customer-facing features via Magento modules.
  • Set up A/B tests and support product decisions with clean data.

Kenntnisse

Magento 2
Varnish
Performance Optimization
AI Implementation

Jobbeschreibung

In 2004, subtel was established in Berlin to address the shortage of quality replacement batteries no longer provided by original brands. Today, under the CELLONIC label, we serve 13 countries with premium batteries that extend device service life, cut spending and protect the environment.

Your mission

  • Maintain and optimize our high-traffic Hyvä store (v1.3.5) by identifying performance bottlenecks across our 50+ custom modules, leveraging Varnish, Elasticsearch, and Cloudinary CDN optimizations
  • Deliver new customer-facing features via lean, well-structured Magento modules for FAQ, self-service, payments and localisation
  • Set up and support A / B and multivariate tests in VWO so Product and Marketing can base decisions on clean data
  • Apply AI tools in your workflow and evaluate fresh AI services that could enhance search, merchandising or support
  • Work hand-in-hand with CTO and Product Manager, bringing in external specialists when deeper expertise is required

Technical environment

  • Architecture : Enterprise Magento 2.4.x with Hyvä Theme, Magewire components, Tailwind CSS
  • Integrations : Custom ERP, Adyen payments, Cloudinary CDN, DeepL AI, Intercom, Google Analytics 4
  • Performance stack : Varnish FPC, Elasticsearch, Redis, custom MviewMaintainer for index optimization
  • Testing : PHPUnit, Cypress E2E, PHPStan level 5, custom email testing framework
  • Deployment : Multi-store setup with 9 languages (13 countries), Amazon S3 media storage

Framework

  • Long-term freelance contract, minimum 30 hours per week, fully remote
  • Six-month roadmap already defined; 50-person company with quick decisions
  • Working with established codebase of 50+ custom modules in production

Your profile

  • 5+ years Magento 2, including at least one live Hyvä project (ideally v1.3+)
  • Enterprise module development experience with PSR-4 autoloading, dependency injection, and service contracts
  • Performance optimization track record with Varnish, FPC, database indexing, and CDN implementations
  • Integration experience with payment gateways (Adyen preferred), ERP systems, and third-party APIs
  • Testing discipline with PHPUnit, integration tests, and automated testing tools
  • VWO or similar A / B testing platform integration experience
  • AI implementation experience beyond basic usage - API integrations, workflow automation
  • Weekday availability 08 : 00–13 : 00 CET; fluent English (German welcome)

Interested in the Senior Magento 2 Developer role? Apply today and we’ll get back to you within 72 hours.

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