SDA – L2 Network Engineer

Job Description: SDA – L2 Network Engineer

Experience - 3-6 Years

Location : Netherlands

Contract - Onsite

🧑 💻 Role Overview

The SDA L2 Network Engineer is responsible for the operational support, monitoring, and troubleshooting of Cisco Software-Defined Access (SDA) environments. This role focuses on incident resolution (L2 level), service assurance, and maintaining enterprise campus network stability using Cisco DNA Center and related technologies

.🎯 Key Responsibilities

🔧 Operations & Support

• Provide L2 support for Cisco SDA (Software-Defined Access) networks
• Monitor network health using Cisco Catalyst Center (DNA Center)
• Troubleshoot issues related to :
• Fabric nodes (Edge, Control, Border)
• Wireless (WLC, Access Points in SDA fabric)
• End-user connectivity (wired & wireless)
• Handle incidents, service requests, and changes within SLA timelines

🌐 SD-Access (SDA) Fabric Operations

• Support and maintain
• Fabric provisioning (underlay & overlay)
• VXLAN-based fabric deployment
• LISP control-plane operations
• Troubleshoot
• Host onboarding issues, IP reachability inside fabric, Fabric edge node misconfigurations
• Validate fabric health and node status

🔐 Policy & Segmentation

• Work with Cisco ISE integration for identity-based access control
• Support
• Scalable Group Tags (SGT) , Security Group Access Control Lists (SGACL)
• Policy enforcement issues
• Troubleshoot authentication/authorization issues (802.1X, MAB)

📡 Wireless Integration (SDA)

• Troubleshoot Fabric-enabled Wireless deployments
• Supports
• SIDs mapped to VN (Virtual Networks)
• Wireless client onboarding issues
• Roaming and connectivity issues

Must Have

Cisco SDA architecture and design

Fabric deployment, provisioning, and onboarding

Cisco Catalyst Center (DNA Center) administration and operations

Policy-based segmentation (Virtual Networks and SGTs)

SDA troubleshooting, migration, and day-to-day operations

📊 Monitoring & Incident Management

• Monitor network performance and availability
• Use tools such as
• Catalyst Center dashboards, SNMP/NMS tools and Syslog/Splunk
• Perform
• Root Cause Analysis (RCA), Incident trend analysis
• Escalate complex issues to L3 teams

🛠️ Required Technical Skills

✅ Core Networking

• Strong knowledge of
• TCP/IP, Routing (OSPF, BGP, EIGRP), Switching (VLANs, STP, EtherChannel)
• Multicast basics

✅ Cisco SDA / DNA Center

• Hands-on experience with
• Cisco Catalyst Center (DNA Center), SDA Fabric (Overlay/Underlay)
• VXLAN, LISP fundamentals
• Understanding of
• Fabric roles (Edge, Control, Border nodes)
• Virtual Networks (VN) and scalable segmentation

✅ Security & Identity

• Familiarity with
• Cisco ISE (AAA, 802.1X, MAB) and Network access control policies

✅ Wireless Networking

• Knowledge of Cisco Wireless LAN Controllers (WLC), WLAN troubleshooting

🎓 Qualifications

• Bachelor’s degree in Network Engineering / IT / Computer Science (or equivalent experience)
• Certifications (preferred)
• CCNA (mandatory) , CCNP Enterprise (preferred)
• Cisco DNA/SDA exposure is a strong advantage

📊 Experience

• 3–6 years of experience in
• Enterprise network operations and Cisco LAN/WLAN environments
• At least 1–2 years exposure to SDA / DNA Center

📌 Nice-to-Have Skills

• Knowledge of
• Cisco SD-WAN (vManage), Network automation (Python, Ansible)
• APIs (DNA Center APIs)
• Understanding of ITIL processes

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