Job Role: Senior Network Engineer (Cisco LAN, WLAN & Security)-Walkin Drive
Experience: 7+ year
Location: Bengaluru
The Level 3 Network Engineer will act as a Subject Matter Expert (SME) for enterprise Cisco network environments, responsible for advanced troubleshooting, design support, and implementation across Wired LAN, Wireless LAN, Firewalls, Cisco DNA Center (DNAC), and Cisco Identity Services Engine (ISE). The role involves handling high-impact incidents, driving root cause analysis, and supporting continuous improvement of network services
.Key Responsibilitie
sNetwork Operations & Troubleshootin
- gLead advanced (L3) troubleshooting for complex LAN, WLAN, and security-related incidents
- .Perform root cause analysis (RCA) for recurring and high-severity network issues
- .Provide escalation support to L2 teams and mentor engineers on complex cases
.Wired & Wireless LA
- NDesign, configure, and optimize Cisco enterprise LAN environments (Catalyst switches)
- .Manage and troubleshoot Cisco Wireless infrastructures (WLCs, Access Points)
- .Support large-scale campus and site wireless deployments, including performance tuning and RF optimization
.Network Automation & Visibilit
- yOperate and maintain Cisco DNA Center (DNAC) for
- :Network assurance and health monitorin
- gConfiguration management and complianc
- eSoftware image and patch managemen
- tUse DNAC insights to proactively identify and remediate network risks
.Network Security & Access Contro
- lConfigure and support Cisco ISE for
- :Network access control (802.1X, MAB
- )Policy enforcement and guest acces
- sIntegration with wired and wireless network
- sManage firewall platforms (Cisco Firepower / ASA or equivalent)
- :Firewall policy and rule managemen
- tNAT, ACLs, and high-availability configuration
- sSecurity incident investigation and respons
eDesign & Change Managemen
- tSupport network design reviews and implementation for new sites or enhancements
- .Participate in change planning, risk assessment, and execution for network changes
- .Ensure configurations follow security standards and enterprise best practices
.Transition & Knowledge Transfer Responsibilitie
- sActively participate in network service transitions, including knowledge transfer (KT) from incumbents or customer teams
- .Review and validate asis network architecture, configurations, SOPs, and documentation during transition phases
- .Support stabilization activities posttransition, ensuring smooth handover to steadystate operations
- .Identify gaps, risks, and improvement opportunities during transition and recommend corrective actions
- .Collaborate with stakeholders to ensure operational readiness, tool onboarding, and access enablement
.Collaboration & Documentatio
- nWork closely with customers, vendors, and internal stakeholders
- .Engage with OEM TAC (Cisco) for advanced issue resolution
- .Maintain accurate network documentation, diagrams, and SOPs
.Required Skills & Experienc
eExperienc
- e7-10 years of hands-on experience in enterprise network engineering roles
- .Strong exposure to global or large-scale LAN/WLAN environments
.Technical Skill
- sCisco Switching: Catalyst series (9K or equivalent
- )Cisco Wireless: WLCs and, Access Point
- sCisco DNA Center (DNAC): Assurance, automation, complianc
- eCisco ISE: NAC, authentication, authorization, guest acces
- sFirewalls: Cisco Firepower / ASA (or equivalent enterprise firewalls
- )Strong knowledge of TCP/IP, VLANs, STP, routing basics (OSPF/BGP fundamentals
)Certifications (Preferred
- )CCNP Enterprise / CCNP Securit
- yCisco ISE or Wireless specialization (good to have
)Soft Skills & Behavioral Expectation
- sStrong analytical and problem-solving skill
- sAbility to work under pressure in high-impact incident
- sClear communication with both technical and non-technical stakeholder
- sOwnership mindset and attention to detai
- lWillingness to mentor junior engineer
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