Senior IT Administrator

Job Description

Essentry is a fast-growing PropTech start-up in Berlin: We secure tomorrow’s offices and high-security buildings in the most efficient and user-friendly way. We enable companies worldwide to inspire their visitors with a fully automated and highly secure identity and access management system. With state-of-the-art technological solutions, we challenge established security processes – regardless of the company size.

We are looking for a Senior IT Administrator who has experience in managing customer-facing, self-service Windows devices as well as in managing Linux cloud infrastructure with a focus on availability and high security.


  • Passion for security with the ability to correctly balance security risk and product advancement.
  • Significant experience in an administrator role managing high-security critical infrastructure.
  • Profound knowledge of Windows administration including policies, PowerShell scripting, security settings, and Windows deployment.
  • Knowledge of Mobile Device Management (MDM) principles and experience with Microsoft Intune.
  • Good knowledge of Linux administration, especially Kubernetes cluster management – experience with Strongswan is a plus
  • Deep understanding of internet and computer networks (TCP/IP, TLS, VPN, etc.) with the ability to diagnose and solve network connectivity issues.
  • Certifications like “Microsoft 365 Certified: Enterprise Administrator Expert” or “Google Professional Cloud Security Engineer” are a plus.
  • You have a “never-stop-learning” attitude and a desire to develop and grow.
  • Excellent German or English language skills.


  • A motivated team with flat hierarchies and a great working atmosphere.
  • International and modern working environment.
  • A steep learning curve combined with a lot of freedom and responsibility.
  • Exciting and diverse tasks that promote your personal growth.
  • We help you grow by offering you to complete certifications and go to conferences.
  • Be part of one of the next Berlin start-up success stories.
  • Flexible working hours, home office, and attractive salary model.

Let’s get started! Is this exactly the challenge you are looking for? If you are convinced to join the essentry family: Apply today! We are looking forward to getting to know you!