Senior IT Security Engineer

Your role in the team

Our expectations of you

Qualifications

• Starkes Verständnis der Netzwerktechnik, einschließlich TCP/IP, Routing, Switching und des OSI-Modells.
• Solid expertise in load balancing and application delivery using technologies such as F5 BIG-IP, VMware Avi (NSX ALB), Azure Load Balancers, and Application Gateways, as well as Web Application Firewall (WAF) and IPS solutions.
• Deep understanding of email security architectures, including Mail Transfer Agents (MTA), Secure Email Gateways (e.g., Proofpoint, Mimecast, Microsoft Defender for Office 365, Cisco IronPort), and authentication standards (SPF, DKIM, DMARC).
• Comfortable working in Linux/Unix environments, with exposure to automation or scripting tools such as Python, Ansible, PowerShell, or Terraform.
• Vertrautheit mit Sicherheitsstandards und Best Practices (z. B. ISO 27001, OWASP Top 10), ITSM-Prozessen sowie grundlegenden Windows Server- / Active Directory-Konzepten ist von Vorteil.
• Analytical, security-first mindset with strong communication skills and professional command of written and spoken English.

Experience

• Several years of experience in IT security engineering or network security within complex on-premise, cloud, or hybrid environments.
• Hands-on experience with enterprise security and networking platforms such as Next-Gen Firewalls (e.g. Palo Alto Networks, Fortinet/FortiGate), VMware NSX micro-segmentation, and Azure Firewalls.
• Practical experience with cyber defense mechanisms including DDoS mitigation, bot protection, and API security, ideally with platforms such as F5 Distributed Cloud.
• Experience managing Public Key Infrastructure (PKI) and certificate lifecycles to support encrypted communications.