HEIN Netzwerktechnik GmbH Tech Stack

Unified communications and network security for mid-market enterprises

Telecommunications Ratingen, NRW 11–50 employees Founded 1986 Self-Owned

HEIN Netzwerktechnik is a 35-year-old systems integrator focused on unified communications, network infrastructure, and IT security for German mid-market buyers. The tech stack centers on Mitel, Avaya, and Innovaphone for voice, paired with Aruba, VMware, and Microsoft 365 for networking and endpoints. Active projects span VoIP deployment, zero-trust security, and optical fiber infrastructure — a mix that reflects both legacy telecom modernization and emerging security demands. Steady hiring in engineering and security suggests operational scaling rather than pivoting.

Tech Stack 13 technologies

Core StackLinux Windows Server VMware Hyper-V Active Directory Mitel Avaya Innovaphone Microsoft 365 OTDR Aruba Central ClearPass VLAN

What HEIN Netzwerktechnik GmbH Is Building

◆Challenges

Implementing zero trust security
Monitoring complex network disruptions

▲Active Projects

Modern it architecture implementation
Voip system setup
Uc solution deployment
It network installation
Optical fiber splicing
Tdr/otdr testing
Aruba central optimization
Wlan infrastructure planning
Implementing next-gen-firewalls
Zero trust security implementation

Hiring Activity

Steady6 roles · 2 in 30d

Department

Engineering

Security

Seniority

Mid

Junior

Senior

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About HEIN Netzwerktechnik GmbH

HEIN Netzwerktechnik designs and deploys unified communications systems, network infrastructure, and security solutions for enterprises in Germany. Founded in 1986, the company operates from Ratingen in North Rhine-Westphalia. Their service portfolio includes VoIP system setup (Mitel, Avaya, Innovaphone platforms), LAN/WLAN design and optimization (Aruba Central, ClearPass), data center virtualization (VMware, Hyper-V), and zero-trust security architecture. Current project work spans optical fiber splicing, OTDR testing, next-generation firewall deployment, and complex network troubleshooting. The team of 11–50 employees is primarily engineering-focused with embedded security expertise.

HeadquartersRatingen, NRW

Company Size11–50 employees

Founded1986

Hiring MarketsGermany

Frequently Asked Questions

What telecom platforms does HEIN Netzwerktechnik work with?

HEIN specializes in Mitel, Avaya, and Innovaphone VoIP systems, along with Aruba Central for wireless and network access control via ClearPass. They also design around Microsoft 365 and VMware virtualization.

What is HEIN Netzwerktechnik currently building?

Active projects include modern IT architecture implementation, VoIP system deployment, zero-trust security rollout, optical fiber infrastructure, WLAN optimization, and next-generation firewall implementation.