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ZeroDayZ7/README.md

Systems Engineer | Go • Rust • Kubernetes • Next.js

Email
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Architecture, Engineering & Security Focus

Moving beyond standard fullstack development into Cloud-Native ecosystems and High-Performance computing. I specialize in building resilient, automated systems that scale.

  • Infrastructure as Code (IaC): Architecting hybrid-cloud K3s clusters with GitOps (ArgoCD) for automated, state-driven infrastructure management.
  • Security Operations (SOC): Implementing threat detection and monitoring using Wazuh (SIEM/XDR). Deploying agents for real-time integrity monitoring and vulnerability assessment.
  • Secure Networking: Implementing Zero Trust connectivity using Tailscale (Mesh VPN) and Tailscale SSH for hardened infrastructure access.
  • Security Standards: Exploring OWASP ASVS (L1-L3) to ensure application-level security, utilizing FFI to integrate memory-safe Rust modules into cross-platform Flutter applications.
  • Cloud-Native Networking: Advanced troubleshooting of CNI (Flannel) and Tailscale Mesh VPN integration, resolving Netfilter/Firewalld isolation and complex routing conflicts.

Technical Stack

  • Languages: Go, Rust, Express, TypeScript, Bash.
  • Systems: Linux (AlmaLinux, Debian, Ubuntu).
  • Security & SOC: Wazuh (SIEM/XDR), Lynis (Hardening index: 80%), Kali Linux, Tails.
  • Infrastructure: Kubernetes (K3s), Containerization (Docker/Podman), GitHub Actions (CI/CD), ArgoCD, Tailscale.
  • Data Stores: Redis, MySQL, PostgreSQL, MongoDB.
  • Frontend: Next.js, React, Tailwind CSS, Flutter.

Top Languages

Core Infrastructure Highlights

I maintain a private K3s cluster with a fully automated GitOps pipeline. All services are deployed via ArgoCD with strict environment separation (Staging/Production) and professional secret management.

Technological Evolution

My journey began with the fundamentals of the web — HTML and PHP, which taught me the core of request-response cycles. From there, I transitioned into the Node/Express ecosystem to master asynchronous patterns.

However, the pursuit of peak performance and strict type-safety led me to shift my focus toward Go and Rust. This evolution from scripting to systems engineering allows me to bridge the gap between high-level frontend and low-level infrastructure. Currently, I'm exploring Flutter for cross-platform delivery while keeping Next.js as my primary tool for web excellence.

The Stack I Master

My Skills

Pinned Loading

  1. http-server http-server Public

    Portfolio backend: HTTP server built with Go and Fiber

    Go

  2. cmdr cmdr Public

    A CLI tool for scaffolding microservices and developer utilities in Go.

    Go

  3. obywatel_app obywatel_app Public

    A secure, multi-platform citizen app for digital ID, messaging, and government services.

    Dart 1 2

  4. services_obywatel_app services_obywatel_app Public

    Microservices repository for the Obywatel App.

    Go

  5. CyberCalc.NET9 CyberCalc.NET9 Public

    WPF-CALC rewritten from .NET Framework to .NET 9 with new themes and modernized features.

    C#

  6. VeloCNC VeloCNC Public

    High-precision CNC calculator with arc compensation and history tracking.

    Dart