System Administrator

Kaizen Resourcing Ltd; Darmstadt; On-site; EUR 55,000 - 75,000; Full time

Job summary

Kaizen Resourcing Ltd is seeking a Systems Administrator to join a technology business specialising in cybersecurity and cryptography. The role is hands-on, covering Linux infrastructure, networking, virtualization, security and automation to maintain a secure, reliable IT environment.

You will work with Linux, Windows and FreeBSD, Docker environments, VMware/Proxmox/KVM, and scripting in Bash or Python. The position requires German fluency and strong IT security practices in ISMS/ISO 27001

Qualifications

• Experience in Systems Administration / IT Infrastructure.
• Strong knowledge of networking and virtualization.
• Scripting experience with Bash and/or Python.
• Experience with Ansible is advantageous.
• Experience with PostgreSQL, MySQL/MariaDB or Oracle is beneficial.
• Fluent German (C1+) and good English.

Responsibilities

• Administration and maintenance of Linux, Windows and FreeBSD systems.
• Installation and management of Linux servers and Docker environments.
• Administration of VMware, Proxmox or KVM.
• Management of network infrastructure, including routers and switches.
• Monitoring, troubleshooting, patching and performance optimisation.
• Infrastructure automation using Bash, Python and Ansible.
• Supporting IT security, ISMS and ISO 27001 requirements.
• User support and incident management.
• Supporting infrastructure projects, migrations and technology rollouts.
• Maintaining technical documentation.

Skills

Linux

Windows

FreeBSD

Networking

Virtualisation

Scripting (Bash/Python)

Ansible

IT Security

Tools

Docker

VMware

Proxmox

KVM

Ansible

Job description

We’re looking for a Systems Administrator to join a technology business specialising in cybersecurity and cryptography. The role sits at the heart of the company’s infrastructure, helping maintain secure, reliable systems across a highly technical environment.

This is a hands‑on position covering Linux infrastructure, networking, virtualisation, security and automation, with responsibility for maintaining and improving the company’s IT environment.

Responsibilities

• Administration and maintenance of Linux, Windows and FreeBSD systems
• Installation and management of Linux servers and Docker environments
• Administration of VMware, Proxmox or KVM
• Management of network infrastructure, including routers and switches
• Monitoring, troubleshooting, patching and performance optimisation
• Infrastructure automation using Bash, Python and Ansible
• Supporting IT security, ISMS and ISO 27001 requirements
• User support and incident management
• Supporting infrastructure projects, migrations and technology rollouts
• Maintaining technical documentation

Requirements

• Professional experience in Systems Administration / IT Infrastructure
• Good knowledge of networking and virtualisation
• Scripting experience with Bash and/or Python
• Experience with Ansible is advantageous
• Experience with databases such as PostgreSQL, MySQL/MariaDB or Oracle is beneficial
• Fluent German (C1+) and good English