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hjalti@portfolio ~ $whoami

Hjalti

Cloud Infrastructure & Windows Server Specialist

// Reykjavik, Iceland  ·  Currently at Nova

15+ years building and managing critical infrastructure across Iceland's MSP, gaming, and hospitality sectors. Deep roots in Windows Server and Linux, with a growing focus on Azure hybrid environments and Microsoft 365 automation.

15+
Yrs exp.
7
Companies
6
Certs
Get in touch LinkedIn ↗ View CV ↓

hjalti@portfolio ~ $catexperience.log

01

Experience

System Administrator Current
Sep 2025 – Present
Nova
Reykjavik, Iceland
  • Operate a hybrid Windows environment across on-premises infrastructure and Microsoft Azure
  • Administer Microsoft 365 and Azure services
  • Operate Hyper-V infrastructure across production, development, and staging
  • Work closely with SOC partners Syndis and Aftra on security and critical systems
  • Lead server upgrades, migrations, and onboarding to Azure Arc and Azure Update Manager
Microsoft 365 & Azure Administrator
May 2024 – Sep 2025  ·  1 yr 5 mos
Wise
Reykjavik, Iceland
  • Administered Microsoft 365 and Azure infrastructure across multiple client environments
  • Managed Entra ID, Intune, Exchange Online, Teams, and Defender for Endpoint
System Administrator
Apr 2021 – May 2024  ·  3 yrs 2 mos
Þekking (now part of Wise)
Kópavogur, Iceland
  • Managed Windows Server environments and Microsoft 365 across multiple client tenants
  • Implemented Azure hybrid solutions and managed Windows Server infrastructure
  • Led escalations, infrastructure planning, and security hardening projects
System Administrator
Jan 2019 – Apr 2019  ·  4 mos
CCP Games
Iceland
IT operations and information security support for the studio behind EVE Online.
System Administrator
May 2017 – Dec 2018  ·  1 yr 8 mos
CenterHotels
Iceland
IT infrastructure management across multiple hotel properties in Reykjavik.
System Administrator / IT Consultant
Sep 2016 – May 2017  ·  9 mos
HGA-Tech
Iceland
Multiple Roles
May 2010 – May 2016  ·  6 yrs
Advania
Iceland
  • SQL Database Administrator (Feb – May 2016): SQL Server administration and optimisation
  • System Administrator (Oct 2014 – May 2016): Windows Server infrastructure management
  • Technical Support (May 2010 – Sep 2014): First-level support; server monitoring at Thor Data Center

hjalti@portfolio ~ $ls-lt./certs/

02

Certifications

Microsoft Certified
Associate
Windows Server Hybrid Administrator Associate
Issued Apr 2025
Administers Windows Server in on-premises and hybrid environments. Covers PowerShell, Azure Arc, Windows Admin Center, Azure Monitor, and Defender.
Microsoft Certified
Associate
Azure Administrator Associate
Issued Jan 2024
Implements and manages Azure identity, governance, storage, compute, and virtual networking.
Microsoft Certified
Expert
Microsoft 365 Enterprise Administrator Expert
Issued Aug 2021
Expert-level certification covering M365 services deployment, security, compliance, and governance across the full suite.
Microsoft Certified
Specialty
Microsoft 365 Messaging
Issued Apr 2022
Exchange Online administration, mail flow, recipients, and messaging infrastructure management.
Microsoft Certified
Specialty
Microsoft 365 Managing Teams
Issued Aug 2021
Microsoft Teams deployment, governance, meetings, and lifecycle management.
CompTIA
Certified
Linux+ (Powered by LPI)
Issued Jul 2018
Linux system administration, security hardening, shell scripting, and server management fundamentals.

hjalti@portfolio ~ $catskills.conf

03

Skills

☁️
Cloud & Microsoft 365
Azure VMs Azure Networking Azure Storage Azure Arc Azure Monitor Entra ID Exchange Online SharePoint Teams Intune
🖥️
Infrastructure & OS
Windows Server 2016/2019/2022/2025 Active Directory Group Policy DNS / DHCP Hyper-V WSUS Ubuntu Server RHEL / CentOS Docker
⚡
Scripting & Automation
PowerShell Bash MS Graph API Azure CLI Cron / Task Scheduler
🔒
Security & Compliance
Defender for Endpoint Conditional Access MFA / SSPR Privileged Identity Mgmt Patch Management DLP Policies
🌐
Networking
TCP/IP VLANs VPN / Site-to-Site Firewalls Routing & Switching Load Balancing
🛢️
Data & Tooling
SQL Server Git / GitHub ServiceNow Jira

hjalti@portfolio ~ $ls-la~/projects

04

Projects

Featured resource

SysAdmin
Cheatsheet

A comprehensive quick-reference for sysadmins who need working commands fast - no fluff, no theory. Built from real-world daily use across Windows Server, Linux, and cloud environments.

  • Networking: OSI, TCP/UDP, DNS, CIDR, subnetting, ports, and VPN technologies
  • Security & hardening: threats, cryptography, authentication, certificates, and firewall rules
  • OS & commands: Linux and Windows Server, PowerShell, AD, SSH, and log paths
  • Cloud: AWS and Azure services, M365, Entra ID, Exchange Online, and Intune
  • DevOps tools, monitoring platforms, and diagnostic references
Open cheatsheet → View on GitHub →
# Networking - listening ports $ ss -tlnp tcp LISTEN 0.0.0.0:22 sshd tcp LISTEN 0.0.0.0:443 nginx   # Security - failed auth attempts $ grep "Failed" /var/log/auth.log   # Windows - security event log PS> Get-WinEvent -LogName Security -MaxEvents 50   # M365 - trace email flow PS> Get-MessageTrace -SenderAddress [email protected] -StartDate (Get-Date).AddDays(-2)   # Entra ID - trigger delta sync PS> Start-ADSyncSyncCycle -PolicyType Delta   # Docker - start & tail logs $ docker compose up -d $ docker logs -f web

Azure automation

Entra Secret Expiry Monitor

A PowerShell runbook that monitors Microsoft Entra ID application secrets and sends timely email alerts before they expire. It uses managed identity authentication, so the monitor needs no stored credentials of its own.

PowerShellMicrosoft GraphAzure Automation
View on GitHub →

Windows Server

Repair-WindowsUpdate

A careful PowerShell repair workflow for Windows Update clients. It rebuilds update caches, runs DISM and SFC, preserves policies by default, and clearly separates repair results from update-scan results.

PowerShellWindows UpdateDISM / SFC
View on GitHub →