Stefan Mironczyk

E-Commerce Marketing Manager

Wallersdorf, Germany

Experience

Dec 2020 - Jul 2021
8 months

Manager E-Commerce-Marketing

nal von minden GmbH

  • Content management and SEO: creating and managing content in the online shop (Magento) on self-diagnostics.com, performing SEO & SEA including Sistrix analysis, on-page optimizations, performance and competitor analysis.
  • SEO optimizations: technical SEO audits and post-relaunch measures like redirect management, link building, meta descriptions and sitemap management, optimizing for Google Core Web Vitals and page experience.
  • Sales promotion measures: planning and implementing up-selling and cross-selling strategies to increase visibility and sales volume.
  • Google and Amazon management: configuring and managing Google Merchant Center, optimizing PPC campaigns, product listings on Amazon and eBay.
Aug 2019 - Feb 2020
7 months

Online Sales Manager

Endor AG

  • Online shop relaunch: concept, planning and coordination of the fanatec.com relaunch, rebranding international online shops (Europe, USA, Canada, Australia, Japan).
  • E-commerce projects: implementing international e-commerce projects and multichannel campaigns, ensuring system performance.
  • Digital & web analytics: using Google Analytics 360 for sales reports and customer journey analysis, controlling marketing campaigns.
  • Amazon account management: developing and implementing global Amazon strategies, FBA management and sales growth tactics.
Sep 2017 - Apr 2019
1 year 8 months

Marketing-Manager Operations

GAB Enterprise IT Solutions GmbH

  • Marketing strategies and communication: planning, managing and executing campaigns across the marketing mix (online, print, video).
  • Web development and SEO: building the GAB Cloud marketplace and landing pages, evolving corporate websites, executing SEO measures.
  • Digital analytics: creating web analytics and reports with Google Marketing Platform, generating leads through SEM, SEO, inbound marketing and growth hacking.
  • Social media management: setting up and managing social media channels, campaign planning for Microsoft 365, Aryaka SD-WAN and Office 365.
Jan 2015 - May 2019
4 years 5 months

Freelancer im Online Marketing

Hackl GmbH

  • Google Ads & analytics: planning and running Google AdWords campaigns, performance analysis with Google Analytics for projects like Karl Lagerfeld and Limbery.
  • SEM, SEO & off-page optimization: search engine marketing, search engine optimization, link building strategies for corporate sites.
  • B2B email marketing & direct marketing: combining offline and online activities, campaigns on B2B marketplaces.
  • Content marketing & video creation: developing and executing content marketing strategies, creating videos and creative content.
  • Social media marketing: planning and executing social media campaigns to boost brand presence.
  • Lead generation & B2B marketing: creating landing pages and lead forms, direct marketing on Xing and LinkedIn.
  • Corporate identity & print assets: corporate identity relaunch, designing business stationery, PVC banners and trade show materials.
Mar 2011 - Jul 2014
3 years 5 months

Digital-Marketing-Manager

Ehlersverlag

  • Digital transformation and ebook introduction: developing new themed books, launching and marketing ebooks on Apple iStore and Amazon Kindle.
  • Subscription models: creating digital audio and video subscriptions.
  • Reader analysis: primary research with surveys to realign topics and editorial concepts.
  • Managing the Naturwissen shop: designing and creating content, optimizing user experience.
  • Naturwissen training website: design and programming in WordPress, event calendar, integration with the publishing portal.
  • Cross-marketing activities: planning and executing cross-marketing campaigns for events and training offers.
Sep 2010 - Oct 2010
2 months

EDV Dozent

Mironczyk Quin-Akademie Landau

Jan 2007 - Dec 2011
5 years

E-Commerce-Manager & Grafikdesigner

Seidel Roland – Industrie und Fachgroßhandel

  • Building and maintaining the online shop with System XT, optimizing product presentation and usability.
  • Search engine marketing: planning and running Google AdWords campaigns.
  • Content management: creating and updating product descriptions, SEO optimization.
  • Performance optimization: analyzing and improving conversion rate with Google Analytics and web analysis tools.
  • Graphic design and print media: designing brochures, flyers and sales materials to strengthen brand image.
Jan 2007 - Dec 2010
4 years

E-Commerce-Manager & Webdesigner (Freelancer)

Bughouse – Street-, Skate- & Snowfashion

  • Developing and running the e-commerce section: design, technical implementation and maintenance of the online shop.
  • SEM and SEO: running Google AdWords campaigns, search engine optimization.
  • Content management & B2C email marketing: creating product descriptions and visual content, planning and running email campaigns.
  • Newsletter templates & address collection: designing professional newsletter templates, building and managing the address database.
  • Amazon Seller program: setting up and managing Amazon sales, optimizing product listings.
  • Social media content marketing: setting up and maintaining social media channels, creating campaigns for Facebook and Instagram.
Feb 2005 - Present
20 years 6 months

Freiberuflich als Mediengestalter/Medienfachwirt, Digital Marketing Manager, SEO-Spezialist, Webentwickler

Nestec

  • As an experienced Digital Marketing Manager and consultant with over 19 years of experience, I help companies in various industries develop and implement tailored digital marketing strategies.
  • My portfolio covers a wide range of projects from SEO optimization and e-commerce management to corporate branding and application coaching.
  • I combine technical expertise and creative problem-solving to build comprehensive, future-proof strategies for sustainable growth and successful market positioning.
  • Projects:
  • Application coaching for professionals and managers: workshops and one-on-one coaching to improve application documents and interview prep, advising over 200 clients.
  • Technical SEO for international e-commerce shop: SEO audits, speed analysis, mobile optimization, URL structure analysis, implementing measures to improve crawlability and indexability.
  • SEO audits and on-page optimization for SMEs: fixing technical issues, meta tags, alt text, internal linking.
  • E-commerce shop relaunch: concept, design, technical implementation, integration of modern payment systems, mobile optimization, training for the in-house team.
  • Digital marketing strategy for a startup: SEO, SEA, content marketing, social media, CMS implementation, SEO analysis.
  • Building multiple corporate websites in WordPress: theme customization, plugin integration, custom functions, client training.
  • Custom CMS development: user-friendly interfaces, newsletter sending, SEO optimization modules.
  • Website redesign and migration to Shopware: performance optimization, usability, payment and shipping integration, tracking tools.
  • Website redesign and migration to Adobe Magento Cloud: complex product catalogs, international sales structures, scalable cloud infrastructure.
  • Adobe Creative Suite training: Photoshop, Illustrator, InDesign for marketing teams.
  • Digital transformation workshops for SMEs: cloud solutions, digital marketing, e-commerce strategies, SEO training.
Feb 2005 - Present
20 years 6 months
Wallersdorf, Germany
Remote

Digital Marketing, Online Marketing, Webentwicklung

Nestec

Freelance web developer, performance marketer and AI integrator with 15+ years of project experience.

My focus: technical SEO, conversion optimization, API integration, CMS/shop architecture and practical use of AI & automation tools in web projects.

Advised over 200 clients from various industries, especially IT and creative sectors.

Technical SEO for an international e-commerce shop: carried out technical SEO audits including speed and mobile optimization and URL structure improvements, leading to significant visibility and conversion gains.

SEO audits and on-page optimization: detailed SEO audits and fixing technical issues for SMEs, implementing on-page optimizations to improve search rankings.

E-commerce shop relaunch: concept and execution of a full shop relaunch including mobile optimization, modern payment system integration and technical SEO audits to ensure performance.

Developing a digital marketing strategy: creating a comprehensive online marketing plan for a startup (SEO, SEA, content, social media). Set up and managed social media and implemented a CMS.

WordPress websites: built and customized multiple corporate sites with WordPress, including theme tweaks and plugin integration. Trained clients on self-management.

Custom CMS: programmed a tailor-made CMS for the creative sector with user-friendly interfaces and SEO modules.

Shopware migration: redesigned and migrated an e-commerce site to Shopware focusing on performance, usability and conversion optimization.

Magento Cloud migration: complete redesign and migration to Adobe Magento Cloud for international e-commerce businesses with advanced features and speed optimizations.

Jan 2001 - Jan 2002
1 year 1 month

Digital Marketing Specialist Praktikum Mediengestalter Digital/Print

Werbeagentur Inguanna

Summary

Stefan-Josef Mironczyk | Web Development · E-Commerce · AI Automation · SEO

For over 15 years I’ve helped companies rebuild their digital platforms, optimize them measurably, and run them at scale—from corporate relaunches to international online shops. I combine deep technical know-how (WordPress, Shopware, Magento, Shopify, API architectures) with performance marketing, technical SEO/SEA, and cutting-edge AI automation.

What I deliver for clients

  • Concept, design & implementation of websites & shops (WP + Elementor Pro, custom themes, headless architectures)
  • Shop relaunch & e-commerce optimization (UX, PageSpeed, Core Web Vitals, conversion)
  • Technical SEO, GA4 tracking, tag manager funnels, A/B testing
  • Performance marketing: Google Ads, Performance Max, Microsoft Ads, retargeting, Looker dashboards
  • AI-powered workflows: GPT-4/Claude/Gemini, n8n, Make, Zapier, ElevenLabs, Leonardo AI – from automated content generation to agent-based bots
  • Process automation & data pipelines (webhooks, serverless functions, CRM sync)

Technologies & Tools (selection) CMS/shops: WordPress, Shopware, Magento, WooCommerce, Shopify Frontend/backend: HTML5, CSS3, PHP, JS/React, MySQL Analysis & SEO: GA4, GTM, Sistrix, SEMrush, Screaming Frog AI & automation: ChatGPT, Claude, DeepSeek, Qwen, Ollama, OpenRouter, n8n, Make Collaboration: Jira, Confluence, Notion, Figma, Adobe CC

Why clients work with me

  • I understand business goals and code
  • Bridge between business, marketing & dev
  • Deliver quick actionable results, no theory
  • Use AI pragmatically: efficiency, content scaling, cost savings
  • Experience in international projects (EU, USA, Asia) and agile teams
  • Remote-proven, but onsite in the DACH region when needed

Languages

German
Native
English
Advanced

Education

May 2015 - Sep 2016

Industrie- Und Handelskammer

Business Administrator

Oct 2007 - May 2009

Macromedia Fachhochschule Für Medien Und Kommunikation

Media Specialist · Digital Media · Munich, Germany

Feb 2002 - Feb 2005

Dr. Robert Eckert Schule Regenstauf

Apprenticeship · Digital/Print Media Designer · Regenstauf, Germany

Certifications & licenses

Python

karriere tutor GmbH

Business Administrator

Industrie- und Handelskammer

PHP Advanced Course

Macromedia Munich

Driver’s License Class B