Senior Network Engineer

Experience: 8 to Not Available years

Location: Sholinganallur, India

Skills: Cisco Software-Defined Access (SDA), Cisco DNAC, WAN, LAN, wireless networking technologies, RF performance validation, routing protocols, BGP, OSPF, IS-IS, VxLAN, LISP, QoS, IEEE 802.1X authentication, network access control, firewalls, Palo Alto, Juniper, Cisco ASA, Load Balancers, LTM, GTM, SSL, RADIUS, AAA, CA, advanced debug analysis, problem-solving techniques, network documentation, Method of Procedures (MOPs), Incident Management, Problem Management, Change Management, technical manuals, SOPs

Job Summary
We are seeking a highly skilled and experienced Senior Network Engineer (Level 3) to join our dynamic IT Infrastructure team. The ideal candidate will be an expert in Cisco Software-Defined Access (SDA) deployments using Cisco DNAC, with a solid command over wired and wireless infrastructure design, configuration, and troubleshooting. You will play a critical role in the planning, execution, and support of complex network infrastructure initiatives and guide junior engineers as a technical leader.

Key Responsibilities
Lead the deployment and management of Cisco SDA (wired and wireless) using Cisco DNAC, ensuring best practices are followed.
• Plan, design, and implement wireless networks in coordination with vendors, project managers, and engineering teams.
• Configure and troubleshoot complex WAN, LAN, and wireless environments, including performance tuning and quality assurance.
• Validate RF performance and reliability and optimize wireless coverage and signal integrity.
• Mentor and train in-house engineers on wireless technologies and act as a technical advisor to non-technical stakeholders.
• Configure and manage routing protocols such as BGP, IS-IS, and OSPF, along with VxLAN and LISP technologies.
• Implement and troubleshoot LAN technologies, including QoS, IEEE 802.1X authentication,



and related access controls.
• Work with firewalls (Palo Alto, Juniper, Cisco ASA) to ensure secure network boundaries.
• Support and configure Load Balancers (LTM/GTM) and SSL infrastructure components (RADIUS, AAA, CA).
• Apply advanced debug analysis and problem-solving techniques to resolve critical issues.
• Maintain detailed network documentation, create Method of Procedures (MOPs), and manage site cutovers with end-to-end ownership.
• Participate in operational activities, including Incident, Problem, and Change Management.
• Create and update technical manuals and SOPs for ongoing network operations.

Required Skills & Qualifications:
• 8+ years of hands-on experience in enterprise networking.
• Expert-level proficiency in deploying and managing Cisco SDA with DNAC.
• Strong experience with wireless networking technologies and RF performance validation.
• Proficiency in routing protocols (BGP, OSPF, IS-IS) and L2/L3 network troubleshooting.
• Practical experience with LAN security, QoS, 802.1X, and network access control.
• Familiarity with network security appliances including firewalls and load balancers.
• Knowledge of SSL/TLS, Radius/AAA, and certificate-based authentication systems.
• Robust documentation and communication skills with the ability to create clear and concise technical documents.
• Proven ability to lead technical initiatives, conduct cutovers, and manage network migrations.

Skill Requirements
Certifications (Preferred):
• Cisco Certified Network Professional (CCNP) or equivalent
• Cisco Certified Specialist – Enterprise SD-Access Implementation
• Other vendor certifications (Palo Alto, Juniper, F5) are a plus

Other Requirements
Certifications (Preferred):
• Cisco Certified Network Professional (CCNP) or equivalent
• Cisco Certified Specialist – Enterprise SD-Access Implementation
• Other vendor certifications (Palo Alto, Juniper, F5) are a plus

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