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Plus.line AG Tech Stack

Managed hosting and IT infrastructure services for 24/7 enterprise operations

IT Services and IT Consulting Frankfurt am Main, Hessen 51–200 employees Founded 1996 Public Company

Plus.line AG operates a Frankfurt-based hosting and infrastructure platform built on Linux, Kubernetes, OpenStack, and Citrix virtualization—handling complex multi-tenant server environments across a 900+ sqm data center. The company's engineering-heavy hiring profile (7 of 8 open roles in engineering, weighted toward junior and mid-level) paired with active projects around platform build, cloud operations, and high-availability virtualization suggests ongoing infrastructure scaling rather than major technology shifts.

Tech Stack 29 technologies

Core StackLinux Ansible Puppet Kubernetes MySQL Nginx PHP Python Java Windows Server Microsoft Exchange SQL Server CentOS Red Hat Enterprise Linux Debian Apache Varnish Tomcat WildFly Postfix Dovecot KVM oVirt Bash OpenStack Citrix Configuration Manager PowerShell Windows

What Plus.line AG Is Building

◆Challenges

Complex server environments
Optimizing system performance
Maintaining complex hosting platforms

▲Active Projects

Complex hosting platform build
Cloud solution development
Cloud solution operation
Hosting platform development
Virtualization projects
Openstack
High-availability virtualization with citrix
System monitoring
High availability virtualization environments with citrix
Support customers with complex microsoft server landscapes

Hiring Activity

Steady8 roles · 3 in 30d

Department

Engineering

7

Ops

1

Seniority

Junior

4

Mid

3

Senior

1

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About Plus.line AG

Plus.line AG is a German IT infrastructure and managed hosting provider founded in 1996, headquartered in Frankfurt am Main. The company delivers 24/7 outsourced IT operations, managed cloud hosting, and network services to mid-market enterprises with complex server landscapes. Operations center on on-premises virtualization (Citrix, oVirt, KVM), cloud platforms (OpenStack), containerization (Kubernetes), and a distributed European CDN. ISO 27001, ISO 9001, and BSI DDoS-protection certifications underscore compliance and security focus. The organization handles roughly 50–200 employees and maintains direct German-language support for infrastructure clients across continental Europe.

HeadquartersFrankfurt am Main, Hessen

Company Size51–200 employees

Founded1996

Hiring MarketsGermany

Frequently Asked Questions

What is Plus.line AG's tech stack?

Linux, Kubernetes, OpenStack, Citrix, KVM, oVirt, MySQL, Nginx, Apache, Varnish. Core infrastructure also includes Ansible, Puppet for config management, and support for Windows Server and SQL Server environments.

Where is Plus.line AG headquartered?

Frankfurt am Main, Hessen, Germany. The company operates a 900+ sqm data center facility and provides 24/7 managed hosting and infrastructure support across Europe.