System and Network Engineer (m/f/d) - Fulltime

Who we are

DIESEC™ provides competent consultancy in IT-Governance, IT-Compliance, IT-Risk Management and Cyber-Security since 2009. With the ever growing demands of our clients and the complexity of the marketour teams are constantly growing. 


As System and Network Engineer (m/f/d) you will contribute to a dynamic team that takes care and improves envirnoments mainly based on Debian based Systems.
You will actively participate in exciting projects in our company, at our customers and in our worldwide business network.
You should have a solid background in Linux, DNS, DHCP and Webservices, as well as good understanding of Network Routing and Switching, VLAN and Firewalls (iptables)
Ideally you already have experience in Cyber-Security as well as Automation with Ansible and Saltstack.
In addition to professional and communication skills, social skills are very important to us.


  • Administration of server infrastructure with a focus on Linux OS.
  • Administration and optimization of the existing network infrastructure.
  • Design and further development of the Network-Infrastrcutures based on requirements.
  • Security-Optimization and Monitoring of sensible Infrastructure-Components.
  • Securing high availability of services.


  • Master’s Degree, preferably with a focus on IT security and/or computer networks, from an accredited college, university or equivalent. 
  • Excellent knowledge of with Linux operating systems as well as knowledge in system hardening and corresponding security measures. 
  • Used to be working on the command line, and capability of automating tasks with the help of (shell) scripting languages. 

Sound knowledge of  

  • Network Architectures, especially with regards to distributed work environments relevant protocols across the different OSI layers. 
  • Network-Services like DNS,DHCP,NTP,LDAP,etc. 
  • Bacula & Borg Backup & Recovery Software 
  • Encryption technologies like TLS, OpenVPN, etc. 
  • Services like Samba, Apache and Postfix 

Ideally you 

  • hold suitable certifications in the above mentioned areas of expertise. 
  • are familiar with Zabbix, Redmine, vCenter, Git, Ansible, Saltstack 


  • Readiness for Advanced Training and further Education 
  • Fluent language and excellent Communication Skills in English are required. 
  • Strong team player and good social skills. 
  • Self-organizing and committed to your tasks.

Our Offer

  • Great working atmosphere. 
  • Interesting and varied tasks as well as continuous training opportunities. 
  • Emphasis on work-life balance. 
  • An excellent and motivated team with high professional competence. 
  • Work from home opportunities. 
  • Flexible working hours. 

Have we raised your interest in this future-oriented and interesting career? Then we look forward to receiving your application.