Hello World!

I’m Andreas Bellstedt — an IT professional with more than 20 years of experience across enterprise environments. Call me Andi. I’m passionate about technology, but even more about applying it in a way that improves reliability, security, and operational efficiency.

Over the years, I’ve built a broad range of skills. My strongest focus today is clearly on Identity & Access Management and automation, with PowerShell and enterprise identity platforms at the center of my day-to-day work.
I bring many years of experience from highly professional IT consulting, ranging from technical delivery to workshops and architecture support. In addition, I’ve held responsibility in leadership, coordination, and management roles — bridging technical depth with stakeholder communication, prioritization, and execution.

What I Work On

My core areas of expertise include:

  • Identity & Access Management (IAM): designing and operating identity foundations, authentication/authorization concepts, and governance in enterprise environments
  • Active Directory & Microsoft Entra ID: deep hands-on experience across hybrid identity scenarios, directory services, and modern cloud identity
  • PowerShell Engineering: very deep PowerShell expertise with a strong focus on maintainable tooling
    • developed multiple modules published on the PowerShell Gallery
    • maintaining a large, battle-tested script collection for day-to-day operations
  • Windows (Server & Client): extensive experience in designing, hardening, and troubleshooting Windows-based environments
  • Security Focus: applying security best practices throughout identity, automation, and operations (security is a design requirement, not an afterthought)
  • Adjacent Technologies: virtualization, Exchange, and Microsoft 365 — with a pragmatic, operations-first mindset

Why This Blog?

This website is my place to:

  • Preserve knowledge and professional achievements in a structured way
  • Share practical insights from real-world IT challenges
  • Document patterns and solutions that have proven reliable in production

I don’t claim to present the ultimate truth. Instead, I aim to provide clear, actionable guidance for professionals who value depth, context, and solutions that work. If you find value in this content, I encourage you to share it with others who might benefit. My goal is to foster a community of IT professionals who are passionate about identity, automation, and security.

In case you find issues, errors or mistakes in the content, have suggestions for improvements, or want to contribute, please feel free to reach out to me.

My Approach

  • Practical over theoretical: real-world scenarios, constraints, and trade-offs
  • Clarity over complexity: explain concepts in a way that helps you apply them
  • Working code: examples should be usable, testable, and maintainable
  • Continuous improvement: technology evolves — and so should our practices

Get in Touch

About This Site

For those interested in the technical details of site and how this blog is built. I use the following technologies and tools:

  • Hugo — a fast and flexible static site generator
  • Toha theme — a clean, feature-rich Hugo theme