Senior Inhouse IT System Engineer (m/f/d)

  • starting immediately
  • Cologne (Mediapark)
  • Permanent
  • Full-time

We are: THE experts of the first hours around domains. We have more than 20 years of experience in e-commerce and we work in interdisciplinary teams every day to create the best possible user experience for more than 2 million customers worldwide. Our common goal? Success that is sustainable! The IONOS group provides support in the background to achieve this goal.


Do you think outside the box and enjoy new technologies? Do you have good organizational skills, like to work independently but also in a team and always keep an eye on the essentials? Are you confident in dealing with IT infrastructures such as servers, clients, storage and switches? Then ensure security and consistent operation with your strong customer and service orientation and drive new exciting projects in migration, service and maintenance together with us!

Your tasks:

  • Planning, further development, installation/configuration and maintenance of wired and wireless network infrastructure solutions
  • Support of network, VPN and telecommunication systems, firewalls, IT-Security
  • Planning and installation of security policies
  • Project management, consulting and support in the implementation of processes and projects

Your profile:

  • In-depth knowledge of network protocols and infrastructure (TCP/IP, WAN/LAN/WLAN, routing, switches)
  • Deep knowledge of Microsoft server infrastructure, Windows server operating systems in the server and database environment, and Powershell
  • Expertise in Hyper-V environments, Document Management Systems (DMS), Palo Alto Firewalls, Manage Engine Endpoint Control
  • In-depth experience in PowerShell
  • If possible, several years of in-depth professional experience in the administration of Veeam backup solutions for servers & clients
  • Very good language skills in German and English

Our benefits for you:

  • Stamping is so 90s: We offer trust-based working hours, home office and, of course, 30 days of vacation.
  • For the sake of the environment: We'll gladly finance your eco-friendly commute with a Deutschland ticket.
  • In the heart of Cologne: Located in the Mediapark, freshly renovated premises with state-of-the-art equipment.
  • You never stop learning: From comprehensive onboarding to individual training agreements
  • Employee discounts: corporate benefits, ticket sprinter, fitness studio membership
  • Unlimited refreshments: coffee, various beverages, fruit, pretzels and many team souvenirs
  • Company events: summer, Christmas, team events
  • Rock solid job in a future-proof industry!


Sedo GmbH

Van Nghiem

Talent Acquisition (PX)

Tel: +49 221 340 30 290