References & Projects

Client references are a crucial trust factor – especially for decision-makers in small and medium-sized enterprises. On this page, you'll find selected projects that describe concrete challenges and their successful solutions. This gives you a clear picture of the problems I've already solved for clients – and how your company can benefit from similar solutions.

Do you have a similar problem? Contact me

Emergency IT Restoration After Cyberattack

Manufacturing company, approx. 150 employees

A medium-sized manufacturing company suffered a severe ransomware attack. Overnight, all important servers and data were encrypted. Production came to a halt – a nightmare for the business. There was neither a current emergency plan nor adequate backups. Management desperately sought an expert who could contain the damage and restore systems as quickly as possible.

  • Immediate malware analysis and isolation of affected systems from the network
  • Recovery of available backups and reconstruction of critical servers
  • Implementation of immediate security measures: new firewall, updates, network segmentation
  • Employee communication and initial awareness training

48h until production resumed
97% of data recovered
0 security incidents since

Just 48 hours after the attack, production was running again. 97% of data could be recovered from backups. A comprehensive IT security concept was subsequently implemented – there have been no security incidents of this kind since the intervention.

We had expected weeks of downtime. Thanks to Mr. Eddelbüttel's quick response, we were fully operational again in two days.

Managing Director Manufacturing Company

Modernization of Outdated IT Infrastructure

Wholesale company, family-owned

A family-owned wholesale company grew over the years while its IT infrastructure remained stuck at a decade-old level. Important servers ran on outdated operating systems without support, and database performance was severely degraded. Employees complained about frequent system crashes and slow applications. With no internal IT manager, there was a lack of strategy and resources for an upgrade.

  • Comprehensive analysis of existing environment and phased modernization plan
  • Setup of new, high-performance servers and migration to virtual environment
  • Replacement of outdated PCs and updates to critical applications
  • Transitions outside business hours for minimal impact
  • Network structure optimization and introduction of central management tools

90% fewer outages
15min → Sec. report time
100% on budget

System performance improved noticeably – reports that used to take 15 minutes are now generated in seconds. Unplanned outages were practically eliminated. The entire modernization process stayed within planned budget and timeline – all during ongoing operations without revenue losses.

Our IT is no longer a bottleneck, but a real enabler for our growth.

Managing Director Wholesale Company

Implementation of an IT Security Concept

Financial services provider

A regional financial services provider faced the task of making their IT systems more secure. With increasing cyber threats and stricter data protection regulations (GDPR), pressure to act was high. There were neither clear guidelines for access and passwords nor emergency plans. The managing director wanted to strengthen customer trust and close security gaps.

  • Thorough IT security analysis: vulnerabilities in network, updates, and employee awareness
  • Introduction of multi-factor authentication for all remote access
  • Implementation of current firewall and antivirus systems
  • Clear access rights and password policies documented
  • Employee workshops on social engineering and secure data handling
  • Establishment of regular update and backup schedules

3 Months project duration
100% compliance achieved
0 incidents since

Within three months, the IT transformed from a diffuse risk to a well-protected, regulation-compliant environment. Phishing attempts are now recognized and reported by employees. The managing director reports a noticeable increase in customer trust.

Our customers and partners now know that their data is in good hands with us.

Managing Director Financial Services Provider

Interim IT Leadership During Company Acquisition

Mechanical engineering company, corporate acquisition

A family-owned mechanical engineering company was acquired by a larger corporation. The previous IT manager left on short notice, numerous projects were open – from ERP integration to network consolidation. Without clear leadership, projects threatened to fail and knowledge to be lost.

  • Taking over interim IT leadership for six months on-site
  • Immediate establishment of team meetings and clear responsibilities
  • Prioritization of ERP migration and IT infrastructure unification
  • Harmonization of important systems, shutdown of redundant applications
  • Introduction of a unified service desk
  • Mentoring of internal employees and preparation for more responsibility
  • Support in searching for and onboarding the permanent IT manager

6 Months interim engagement
100% projects on schedule
Seamless handover to successor

The IT transition phase was mastered smoothly. All business-critical systems remained stable and ongoing projects were completed on schedule. All processes were documented and handed over to the new IT manager – without knowledge loss.

Mr. Eddelbüttel gave our IT team stability and orientation during a difficult phase – we are very grateful for that.

COO Mechanical Engineering Company

Your IT Challenge Deserves a Solution

These references demonstrate how I tackle diverse IT problems – from acute emergencies to strategic modernizations to temporary leadership roles. Each success story represents experience and expertise that your company can also benefit from.

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Don't hesitate to contact me about similar challenges. Together, we'll find the right solution for your IT.

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