Network Engineer

About the Role

We are seeking an experienced Freelance Network Engineer (m/f/d) to support the implementation and maintenance of complex enterprise network infrastructures. This role involves hands-on work with Layer 2/3 networking, security configurations, and VPN deployments in a dynamic environment.

Key Responsibilities

• Execute implementation plans for enterprise networks, including:
• Spanning Tree, VLANs, VPCs, Port Channels
• Redundant ISP connectivity and WAN integration
• Data center network design and extranet connectivity
• Administer and troubleshoot networks using technologies such as Ethernet, Wi-Fi, and leased TELCOM connections.
• Configure and maintain site-to-site and client-based VPNs, IPsec, and MPLS tunnels.
• Implement and maintain firewall perimeters and network protection plans.
• Perform network segmentation and apply security best practices.

Qualifications

• Strong hands-on experience with protocols: TCP/IP, EIGRP, OSPF, BGP, MPLS, VLANs, Wireless LANs, VPN.
• Solid knowledge of routing and switching, WAN/LAN technologies, and data center network design.
• Familiarity with ASA firewall configuration and security standards.
• Excellent communication skills for technical and non-technical audiences.
• Ability to work independently and deliver results.
• Minimum 2 years of relevant experience.

Key Deliverables

• Firewall rule analysis and refinement.
• Blocking Indicators of Compromise (IOCs) at the network perimeter.
• Limiting ingress/egress traffic and applying segmentation.
• Appliance patching and updates.
• Secure VPN / ZTNA deployment.