About Me

Marcin Michalczuk – MMStack | Your Personal IT & Web Specialist in Duisburg

My name is Marcin Michalczuk. I am the founder and owner of MMStack, based in Duisburg (North Rhine-Westphalia / NRW, Germany). I deliver direct, tailored technological support and web engineering for businesses and private clients.

Philosophy: Direct Contact, Flexibility & Full Accountability

My goal is to implement solutions across IT infrastructure, high-performance web engineering, SEO, GEO (AI-Ready), and branding transparently, effectively, and without unnecessary agency bureaucracy.

As an independent specialist, I offer a collaboration model centered around a Single Point of Contact. From initial technical analysis and system architecture to coding, network setup, and ongoing maintenance, you work directly with me. This guarantees 100% clarity, swift response times, and custom-engineered solutions without generic templates.

How Collaboration Works

  • Personal Ownership from A to Z: You know exactly who is executing your project and who to contact at every phase.
  • Tailored Solutions: Every project – from B2B network setups to enterprise web applications – is aligned with your specific business goals and budget.
  • Discrete Protection & NDAs: To safeguard client privacy and sensitive system infrastructure, I refrain from publishing an open public portfolio. Confidentiality is paramount.
  • Reliable Partner Network: For complex or multi-disciplinary demands, I collaborate with a vetted network of trusted specialized partners.

Two Pillars of Support: Business & Home

For Businesses (SMEs)

Comprehensive IT maintenance, NAS server configurations, networks & IP surveillance (NVR), high-performance websites, technical SEO/GEO audits, AI visibility, and protective technical foundations for ad campaigns.

Private / Home Office

Straightforward assistance with everyday IT challenges – expert advice on hardware selection, home network setup, Wi-Fi coverage, local NAS backups, and fast PC troubleshooting.

Multilingual Capability (EN / DE / PL)

MMStack is built with full multilingual capability to eliminate communication barriers in technical and business projects:

  • English (Professional & Technical): Seamless communication for international clients and cross-border tech projects.
  • German (Full Professional Proficiency): Direct support for businesses in Duisburg, NRW, and throughout Germany.
  • Polish (Native): Dedicated technical and business assistance for Polish entrepreneurs and DACH market initiatives.

Technology Stack & Core Competencies

IT Infrastructure & Security: NAS systems (Synology, QNAP), IP Cameras & NVR (Dahua, Hikvision, Ubiquiti UniFi), Modbus TCP and REST APIs.
Web Engineering: Clean Code (HTML5, CSS3, JS, Bootstrap), WordPress, high-converting Landing Pages, Core Web Vitals optimization.
SEO, GEO & AI Visibility: Local SEO, technical audits, Generative Engine Optimization (ChatGPT, Gemini, Perplexity), Ad budget protection.
Graphics & Branding: Corporate Identity, logo vectorization, print prepress (DTP/CMYK), and social media assets.

Frequently Asked Questions (FAQ)

Founder and owner Marcin Michalczuk is personally responsible for all projects at MMStack. The business operates on a direct Single Point of Contact model without sales representatives or middlemen.

Yes. MMStack offers full technological support, web engineering, and SEO optimization in English, German, and Polish for companies across Europe.

Omitting a public portfolio is a deliberate decision to protect client privacy and system security. Relevant references and competencies are presented during personal initial consultations.