mistermobilka.com

Skills

What I can actually do, and how far

28 technologies across six areas. Every one carries a tier, because "familiar with" and "responsible for in production" are not the same claim and should not look the same on a page.

Proficiency is marked honestly.

  • Production used in a live environment I am responsible for 11 entries
  • Working knowledge hands-on but not yet production-critical 11 entries
  • Learning project built in a self-directed lab or personal project 6 entries

Cloud & Containers

Where the next step is. Built in self-directed labs, on real cloud bills.

  • AWS EC2

    Learning project

  • Kubernetes (k3s)

    single-node and multi-node

    Learning project

  • Docker, Docker Compose

    Working knowledge

  • Microsoft Azure

    AZ-104 in progress

    Learning project

  • Tailscale

    WireGuard-based mesh

    Working knowledge

  • Cloudflare

    DNS, proxy, TLS modes

    Working knowledge

Windows Infrastructure

The day job. A live domain of roughly 120 users depends on this working.

  • Windows Server, Active Directory, Group Policy

    Production

  • DNS, DHCP

    Production

  • WSUS

    SSL, port 8531

    Production

  • ManageEngine ServiceDesk Plus

    incl. NTLM SSO

    Production

  • 1C administration

    Working knowledge

Networking & Security

Routing, tunnels, and finding out what is actually reachable from where.

  • MikroTik / RouterOS

    routing, NAT, firewall, VPN, dual-WAN

    Production

  • Kerio Control / Kerio Connect

    Production

  • IPsec site-to-site tunneling and diagnostics

    Production

  • VLAN segmentation

    Working knowledge

  • Authorized internal security auditing

    recon, service enumeration, reporting

    Working knowledge

  • Suricata IDS/IPS

    Learning project

  • HikVision video infrastructure

    Working knowledge

Automation & Scripting

Doing a thing once by hand, then never again.

  • PowerShell

    fleet automation, monitoring, GPO, AD

    Production

  • Python

    LDAP tooling, BLE clients, automation, multi-agent orchestration

    Working knowledge

  • Bash

    Working knowledge

  • GitLab CI/CD

    Learning project

  • Ansible

    Learning project

Virtualization & Backup

A production ESXi cluster, and the backups that make it survivable.

  • VMware ESXi under vCenter / vSphere

    cluster

    Production

  • Veeam Backup & Replication

    Production

  • iSCSI / LUN storage

    Working knowledge

Monitoring

Knowing something broke before a user has to tell you.

  • Custom PowerShell monitoring with alerting

    Production

  • Grafana / Prometheus

    installed and configured from scratch for server monitoring

    Working knowledge

The lab work is where the cloud tier gets earned

The Learning project entries above are not aspirational — each one is something I built and broke. The k3s cluster write-up has the failures in it.

See the projects