JCM
Berlin, Germany — IT System Administrator
Freelance & Consulting Available
Jean-Claude Munyakazi
IT System Administrator focused on systems infrastructure, Microsoft 365 administration, networking, Linux server administration, and automation. I build, document, and support reliable IT environments across on-premises, cloud, and hybrid systems.
10+
Years Experience
3
Countries
CCNA
Certified
M365
Specialist
Microsoft 365 Administration ◆
Network Security ◆
Cisco CCNA ◆
Veeam Backup ◆
Windows Server & Linux ◆
ISO 27002 ◆
PowerShell & Automation
What You'll Find Here
A Portfolio Built
From Real Lab Work
Every project, article, and guide on this site comes from hands-on work, real configurations, real deployments, real documentation. No filler content.
M365 Runbooks
6 full admin runbooks for a fictional 23-user tenant
Security Guides
6 end-user PDF guides covering MFA, phishing, passwords
Technical Blog
12+ in-depth articles on networking & cybersecurity
Linux hosting
Self-hosted WordPress, Linux services, and secure access documentation
Professional Services
Infrastructure, Microsoft 365 & Technical Consulting
Supporting SMEs, portfolio projects, and independent deployments through hands-on infrastructure administration, Microsoft 365 environments, Linux systems, networking, and technical documentation.
Microsoft 365 Administration
Infrastructure Consulting
Linux & Self-Hosted Systems
Network Administration
Technical Documentation
IT Support & Automation
Available for freelance, consulting, and collaborative IT projects.
Portfolio Overview
See the Work in Action
Explore the Site
Projects, Guides & Articles
Everything here is built from real lab work. Click any card to explore.
01 — Portfolio
System & Network Projects
Hands-on Microsoft 365 administration, network infrastructure, Linux-based WordPress hosting, and security documentation
- M365 Administration Runbook Series (6 guides)
- User Security Guide Series (6 PDF guides)
- Linux-based WordPress hosting setup
- WLAN-to-LAN Bridge & Network Lab
02 — Services
IT Infrastructure Services
Independent Microsoft 365, infrastructure, networking, Linux, documentation, and technical consulting services.
- Microsoft 365 administration and tenant support
- Infrastructure consulting and self-hosted systems
- Network administration and troubleshooting
- Technical documentation and automation support
03 — Blog
Professional Blog
In-depth technical articles on cybersecurity, network management, Cisco IOS, and IT security frameworks.
- Cybersecurity Domain Series (13 articles)
- Network Management Series (6 articles)
- ISO/IEC 27002:2022 Security Framework
- Network Troubleshooting & Static Routing
04 — About
My Journey
From Burundi and Rwanda to South Africa to Germany, 10+ years shaped by curiosity, resilience, and a passion for technology.
- 10+ years in IT across 3 countries
- CCNA, Linux, Microsoft 365 certified
- M365 migration (Berlin)
- Self-hosted portfolio and technical documentation
Core Competencies
Technical Expertise
Microsoft 365
Exchange, SharePoint, Teams, Intune, Entra ID, Power Automate
Networking
TCP/IP, VLANs, VPNs, Cisco IOS, Routing & Switching (CCNA)
Cybersecurity
System hardening, firewalls, endpoint security, ISO 27002
System Admin
Windows Server, Linux, Hyper-V, VMware, Active Directory
Backup & Recovery
Veeam Backup & Replication, disaster recovery planning
Automation
PowerShell, Power Automate, shell scripting, ACMP
Linux-Hosting
LAMP stack, WordPress, Cloudflare Tunnel, self-hosted services
IT Support
Helpdesk, hardware diagnostics, cabling, remote support
🇧🇮🇷🇼
Burundi & Rwanda — The Foundation
Early passion for technology and problem-solving with limited resources. Learning to build creative solutions from scratch.
🇿🇦
South Africa — The Growth
IT Technician, Hands-on networking, hardware repair, and system administration in a fast-paced environment.
🇩🇪
Germany — The Mastery
CCNA certified. Microsoft 365 specialist. 10+ years of IT experience across system administration, network infrastructure, and cybersecurity. Berlin.
Explore the Portfolio
Projects, technical articles, and security guides, all documented from real hands-on IT work.