System Administrator

Flexperto Published: September 10, 2021
Berlin, Germany
Job Type


Flexperto is a software startup in the area of digital communication. Our customers are primarily large international enterprises in the insurance and financial industry. We are headquartered in Berlin, right at the heart of Germany’s tech industry, and currently field 25 employees.

We believe that digital communication between companies and customers is complicated and outdated. Everything that your sales employees have previously done offline, is now also possible online with Flexperto: scheduling appointments, clarifying questions in a video conference, viewing documents together, signing contracts, or communicating with customers on WhatsApp. And thanks to our CRM integration, the entire process is documented centrally. Read more at

Job Description

We are constantly trying to improve our platform, and while adding to our feature set, maintaining a highly available as well as Secure Infrastructure that hosts our SaaS is of very high importance for us. We are looking for a system administrator (m/f/d) to strengthen our infrastructure team in order to keep the quality bar high.

About Your Role

  • You will improve and maintain our infrastructure, including but not limited to:
    • Patch-Management
    • Release-Management
    • Application- and Service Deployment and Management
    • Incident-Management
    • Monitoring & Availability
    • Security of the Cloud
  • You will contribute to our Migration from Bare-Metal infrastructure to IaaS based infrastructure
  • You will support our Customer Support and Customer Success Department with configuration and debugging / problem resolution
  • You will automate our infrastructure using tools such as Jenkins, Ansible, and Terraform
  • Your responsibilities grow with your abilities and preferences.
  • You will support us on our path to obtain an ISO 27001 Certification


Skills We Require

  • A Self-driven and structured mindset with a focus on detail.
  • Proficient in operating
    • container registry and runtimes (Docker)
    • Linux machine configuration and management
  • Willing to take ownership.
  • Fluent in English.

Skills That Are Nice To Have

  • Kubernetes/Helm
  • Experience with maintenance tools such as log analysis (ELK) and capacity/load management (Grafana)
  • Experience with service-oriented system architecture.
  • Experience with security of infrastructure (VPN / terminal session management / WAF / NIDS / SIEM)
  • Knowledge of any one of the following tools and libraries in our tech stack:

Additional Information

What We Offer

  • A passionate team with peers from countries all over the world
  • A dedicated budget for education programs and conferences
  • An attractive compensation package
  • Flexible work hours and a home office policy that focuses on people and not on numbers
  • A work environment where your contribution will make a difference
  • Team events
  • An amazing office centrally located in Berlin, the vibrant tech capital

Our tech stack

An overview of our tech stack can be seen at, but briefly, put:

  • the core of the platform is a PHP monolith
  • most of the new functionality is written in NodeJS / TypeScript services, driven by moleculer.js
  • front ends written in react + redux.js
  • developer environment, infrastructure, and deployment is docker (swarm) based
  • the infrastructure is currently bare-metal based and will be migrated to IaaS


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