Kasim Dönmez

Network & Systems Engineer with a passion for problem-solving, automation, and building resilient systems.

About Me

My professional journey is defined by gathering a blend of technical expertise and leadership skills. From leading a political party's digitalization to mastering network and VoIP diagnostics, I have cultivated a deep understanding of resilient and secure systems. Currently, I am expanding my skills in backup, disaster recovery, and cloud infrastructure, driven by a commitment to reliability and business continuity through technological solutions. I am a lifelong learner dedicated to building a career at the intersection of technology and impact. Furthermore I am engaging in various social and political projects.

Skills & Expertise


Core IT & Networking

  • VoIP & Telephony Protocols
  • Network Diagnostics
  • System Administration (Linux)
  • Firewall, DNS, Routing, Switching

Automation & Scripting

  • Python CLI Tools
  • Bash Scripting
  • Task Automation
  • Config-Management

Cloud & Virtualization

  • Cloud Infrastructure (IaaS)
  • Backup & Disaster Recovery
  • Server Management

Projects & Contributions

C & x86 Assembly

Experimented with and wrote tutorials on low level programming utilizing C as well as x86 / x64 Assembly.

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FiSi Documentation

In-depths documentation on networks and systems administration as a personal reference, but also for knowledge-sharing.

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Liberale Demokraten Digitalization

Led the IT infrastructure overhaul and created extensive open-source documentation for server setups, ensuring both privacy and security.

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Personal GitHub (@mkasimd)

A collection of personal projects focusing on systems administration, network automation, and low-level programming.

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AsciiDoc Theme

Created various themes to be utilized for PDF-creation using asciidoctor-pdf, creating styled PDF files from AsciiDoc documents.

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Apple Mail Auto-Configuration

Created a PHP script that generates Apple MDM profiles to automatically configure Apple Mail with the requested mail account.

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FairEmail Tutorials

Contributed tutorials and documentation to the open-source community for a privacy-focused email client, promoting secure communication practices.

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Professional & Civic Experience

Backup, DR & Storage

WIIT AG | Aug 2025 - Present

Specializing in designing and implementing robust backup, disaster recovery, and storage solutions to ensure business continuity and data protection.

Network Infrastructure & Services

WIIT AG | Oct 2023 - Aug 2025

Focused on the implementation and maintenance of core network and network security services as well as infrastructure.

Apprentice Fachinformatiker (Systemintegration)

WIIT AG | Oct 2023 - Present

Undergoing formal training to specialize in system integration, with a focus on comprehensive IT solutions.

Network Operations Center (NOC)

WIIT AG | Mar 2023 - Oct 2023

Managed and monitored network infrastructure, ensuring high availability and performance in an enterprise co-location and cloud environment.

Federal Chairperson

Liberale Demokraten | Jan 2022 - May 2023

Led a political party at the national level. Oversaw the party's digitalization efforts. Legally represented the party in various court cases, including at the NRW state constitutional court.

2nd & 3rd Level VoIP Support

sipgate GmbH | Jan 2020 - Jan 2023

Provided advanced technical support, specializing in network and VoIP diagnostics using tools like Wireshark and Voipfuture. Contributed to documentation and customer onboarding.

IT Team Lead

Liberale Demokraten | Oct 2019 - Present

Installed a cost-effective self-managed server environment and implemented various services including web and mail server as well as Nextcloud, OpenSlides and Keycloak.

Federal Volunteer Service (BFD)

Caritas | Aug 2015 - May 2016

Gained valuable social competencies, strengthened my personality and self-reliance, and acquired new learning experiences through practical work in a civic service role.

Managing Director

Meska-Europa GmbH | Dec 2014 - Jan 2019

Managed business operations, led a strategic pivot to renewable energy, and gained valuable entrepreneurial experience.