Required skills
- Sophos Firewall
- Network Engineering
- IT Security
- TCP/IP
- Routing
- VLANs
- NAT
- IPsec VPN
- SSL VPN
- DNS
- Project Management
- 3rd Level Support
Languages: German
Job description
An ISO-27001-certified Managed Service Provider is seeking an experienced freelancer for network and security projects, focusing on Sophos Firewall, and 3rd Level Support for medium-sized clients.
Responsibilities
Clean documentation in our systems
Must-Have Criteria
Desirable (All-Rounder Profile)
- Planning, implementation, and migration of firewall and network projects for clients, with a focus on Sophos Firewall (XGS)
- 3rd Level Support / Escalation point for network and security topics
- Audits and optimization of existing firewall rule sets (rule hygiene, web filter, IPS, TLS inspection, performance)
- Conception and operation of VPN (Site-to-Site, Remote Access), SD-WAN with multiple uplinks and HA clusters
- Network design: VLAN segmentation, switching/routing, WLAN
- Support with security topics related to Sophos Central / MDR and endpoint protection
- Several years of practical experience with Sophos Firewall (XG/XGS, SFOS), ideally Sophos certification (Architect / Engineer)
- Profound network knowledge: TCP/IP, routing, VLANs, NAT, IPsec/SSL VPN, DNS
- Experience in project business with medium-sized clients
- Independent, structured way of working and good documentation discipline
- Very good German language skills, both written and spoken (client contact)
- Microsoft environment: Active Directory, Entra ID / Intune, Microsoft 365, Exchange Online
- Switching and WLAN, e.g., HPE Aruba
- Experience in the MSP environment, preferably with Autotask PSA, Datto RMM, and IT Glue
- Further security topics: MDR/XDR, hardening, ISO 27001 or TISAX requirements
- VoIP/UC basics (e.g., 3CX) in conjunction with firewall and QoS
Project details
- Start: 19.10.2026
- Duration: 6 Monate mit Verlängerung
- Location: Weilheim in Oberbayern, DE
- Languages: German
Source notes
We are an ISO-27001-certified Managed Service Provider from Upper Bavaria. We support medium-sized clients with 50-300 IT workstations in the DACH region, both fully and in a co-managed model. Our helpdesk handles 1st/2nd level support; we are looking for an experienced freelancer to strengthen our team for projects and 3rd level support.
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