Markus Alexander Reiter

System and Network Administrator

With over eight years of experience, I manage complex IT environments, lead system migrations, and support multi-site corporate networks. I leverage pragmatic automation and modern cloud technologies to make operations more efficient.

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Hosted on AWS S3 + CloudFront, DNS via Cloudflare, deployed with GitHub Actions (keyless OIDC-Auth)

About

Keeping critical systems secure, stable, and scalable.

I started my IT career over eight years ago in helpdesk and support. Today, I am solely responsible for the end-to-end IT infrastructure across three international locations.

My daily work centers on server administration, network security, and managing our Microsoft environments. Beyond daily operations, I plan and execute core infrastructure upgrades and migrations. I also leverage Python and Bash to automate repetitive tasks and am actively expanding my expertise in cloud technologies.

I've been fascinated by technology for as long as I can remember, and my interest in IT doesn't stop when the workday ends. Whether I'm modding retro hardware or playing around with game design, I love trying out new systems and learning about areas outside of traditional system administration.

Role: System and Network Administrator (sole responsibility)
Experience: 8+ years in server administration, networking and IT projects
Current: Sole IT responsibility for three international locations with 50+ staff
Focus: Windows Server, Microsoft 365, network security, migrations and automation

Skills

Core Expertise

Infrastructures, Cloud & Automation, and Project Management: practical, reliable, and closely aligned with business and user needs.

Systems & Network

Windows Server Administration · Active Directory & User Management · Microsoft 365 · Network Administration & Troubleshooting · Firewall & VPN Configuration · Virtualization

Project Management

Leading Software & Infrastructure Projects · Implementation & Migration of ERP/Accounting Systems · Evaluating New Software Solutions · Coordinating External Service Providers · Process Optimization & Digitalization · User Training & Change Management

Cloud & Automation

Python & Bash Scripting · IT Process Automation · AWS (SAA-C03, in progress) · Linux & Docker (Basics)

Work experience

My Career

2022 - today

System and Network Administrator

Sterf HandelsgmbH · South-East Styria

Solely responsible for the operation, security, and expansion of the IT infrastructure across three international locations.

In this role, I led a multi-year ERP and financial accounting migration, coordinating closely with external partners. I also designed and deployed the entire network and server setup for a new corporate site. Alongside managing Windows servers, Active Directory, Microsoft 365, firewalls, and VPNs, I develop Python and Bash scripts to automate monitoring and administrative tasks.

2017 - 2021

IT Support Specialist (First & Second Level)

PIDAS Österreich GmbH · Graz / Vienna

End-user support and technical troubleshooting in corporate environments.

Resolved hardware, software, and network issues while administering Active Directory, Microsoft 365, and Windows client systems. I handled technical escalations, supported server and mobile device management, and collaborated with vendor support and internal departments to implement lasting solutions.

Certifications

Network Administrator WIFI

AWS Certified Solutions Architect – Associate SAA-C03 · exam planned 2026

Projects

Personal Projects & Side Projects

A collection of small tools and practical developments. They were built to simplify daily tasks, whether at work or at home, and to gain hands-on experience with technologies like Linux, Docker, and Python.

Contact

Get in touch

For questions about my resume, I am available by email, phone, LinkedIn or GitHub.

Download resume as PDF

Email me@markusreiter.com Phone +43 680 2329158 LinkedIn View profile GitHub Projects and code