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Comprehensive IT Modernization and Security Architecture

Fleming Bruckmaier - CTO Quantum Diamonds

We work with sensitive research data which can not fall into the wrong hands. That’s why we chose Rheintec Solution — Right off the bat, we felt very comfortable working with the team while they offer a strong level of security in combination with fast, professional and friendly support. 

Fleming Bruckmaier

​Chief Technology Officer

Stand-alone Quantum Diamonds SensorQuantum Diamonds. (2025). Homepage. https://www.qd-st.com/

Challenge

Quantum Diamonds is a fast-growing, highly innovative company developing advanced measurement instruments for modern semiconductor testing using quantum sensor technology. As the company scaled, its organically grown IT infrastructure—lacking standardization and robust security—became a bottleneck. To support its growth and protect sensitive R&D data, the company needed a secure, scalable, and future-ready IT environment.

 

 

 

Objectives

Our joint goal was to transform the existing infrastructure into a secure, modern IT landscape with:

  • Security by Design

  • Cloud-first architecture

  • Scalability & automation

  • Zero Trust principles

 

Our Approach

Working closely with the internal IT team, we followed a structured and transparent project approach:

  1. Assessment of the existing infrastructure and vulnerabilities

  2. Definition of a target architecture and security requirements

  3. Prioritization of initiatives based on business impact and efficiency

  4. Collaborative execution with regular knowledge transfer and alignment

 

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Lines of code reflected through eyeglasses on a laptop screen, symbolizing developer focus and attention to detail

The Solution

To build a secure and scalable IT environment, we implemented:

  • Endpoint Security with CrowdStrike and centralized device management via Microsoft Intune

  • Identity Protection using MFA, role-based access, and user awareness training

  • Network Segmentation with UniFi infrastructure and secure remote access

  • Cloud Transformation by migrating from Google Workspace to Microsoft 365, including full device integration

These measures laid the foundation for a Zero Trust architecture and enabled secure, efficient collaboration across locations and platforms.

Results

  • Unified and scalable IT security architecture

  • Comprehensive protection on endpoint, network, and cloud levels

  • Secure and seamless work environment for both internal and remote users

  • Fully managed devices across all operating systems

  • Future-ready infrastructure to support business growth and compliance


The project was carried out in close collaboration with the customer’s IT team, with regular feedback loops, transparent communication, and coordinated rollouts ensuring strong user acceptance. As a result, Quantum Diamonds now operates on a holistic, secure, and scalable IT foundation—powered by Microsoft 365, centralized device management, CrowdStrike endpoint protection, and network security with UniFi and Zscaler—enabling secure, agile, and efficient operations.

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QuantumDiamonds_Team

About Quantum Diamonds

Quest One (formerly H-TEC SYSTEMS), a 100% subsidiary of MAN Energy Solutions with around 500 employees, is a global leader in the field of PEM electrolysis. The company develops and produces innovative electrolyzers and electrolysis stacks for the economical, efficient and reliable production of green hydrogen. Quest One's declared aim is to make a significant contribution to the fight against climate change with its own products. The company's mission is to avoid one percent of global greenhouse gas emissions by 2050 through the use of its electrolyzers.

Visit Quest One Website

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