Senior Network Engineer in Viersen

Job Title: Senior Network Engineer

Location: [Remote / Hybrid]
Job Type: Full-time
Department: IT / Infrastructure / Network Operations
Reports To: IT Director

About the Role

We are seeking a Senior network engineer to design, implement, secure, and support enterprise network infrastructure across LAN/WAN/WiFi, data centers, and cloud connectivity. This role requires deep technical expertise, strong troubleshooting skills, and the ability to lead network initiatives from planning through execution.

Key Responsibilities

• Design, implement, and maintain enterprise network infrastructure (LAN/WAN/WLAN).
• Manage and optimize routing and switching environments (SDWAN, SDA, BGP, OSPF, EIGRP, VLANs, STP, HSRP/VRRP).
• Configure and support firewalls, VPNs, and network security controls.
• Lead network upgrades, migrations, and major infrastructure projects.
• Support and troubleshoot network performance issues and outages (root cause analysis).
• Monitor network health using tools like SolarWinds / ThousandEyes (or similar).
• Maintain network documentation: diagrams, IP schema, standards, and runbooks.
• Work with service providers for circuit turn-ups, troubleshooting, and escalations.
• Ensure high availability, redundancy, and disaster recovery readiness.
• Mentor junior engineers and provide technical guidance.

• Participate in on-call rotation and support after-hours maintenance activities.

Cloud Networking (AWS/Azure/OCI)

• Design and support cloud network architecture, including:
  • AWS VPC / Transit Gateway / Route Tables / NACLs / Security Groups
  • Azure VNet / VNet Peering / UDR / NSGs / Cloud Firewall
• Implement secure hybrid connectivity:
  • IPsec site-to-site VPN
  • AWS Direct Connect / Azure ExpressRoute
• Implement cloud segmentation and secure routing patterns for CUI environments.
• Support cloud security integrations:
  • Centralized logging/monitoring
  • Network traffic visibility and alerting
• Partner with cloud engineering teams to ensure compliant connectivity for workloads handling CUI

Required Qualifications

• Bachelor’s degree in IT/Computer Science or equivalent work experience.
• Hands-on enterprise network engineering experience.
• Strong knowledge of:
  • Routing and switching (Cisco)
  • TCP/IP, subnetting, DNS, DHCP, InfoBlox
  • WAN technologies (DMVPN, SD-WAN, DIA, broadband)
  • Wireless networking (Cisco/Meraki) with ISE Infra
• Experience with:
  • Firewalls (Palo Alto / Cisco ASA/FTD)
  • VPN (site-to-site, remote access)
  • Network segmentation and security best practices
• Strong troubleshooting skills using packet capture tools (Wireshark/tcpdump).
• Excellent communication and stakeholder management skills.

Preferred Qualifications

• Experience with SD-WAN (Viptela, etc.)
• Cloud networking experience: AWS / Azure / OCI
  • VPC/VNet design, VPN, Direct Connect/ExpressRoute
• Automation experience (Python, Ansible, Terraform, API-based networking).
• Experience with NAC solutions (Cisco ISE, ClearPass).
• Knowledge of compliance/security frameworks (NIST, CMMC, ISO 27001).
• Certifications preferred:
  • CCNP / CCIE (Enterprise/Security)
  • PCNSE / NSE

LI-MP1