4+ LAN Jobs in Chennai | LAN Job openings in Chennai

Job Summary:

We are seeking a highly skilled and motivated Senior Administrator - Network & Security to join our team. This role demands a dynamic individual capable of designing, implementing, and maintaining robust network and security infrastructure for a global enterprise. The ideal candidate will possess in-depth technical expertise, exceptional problem-solving skills, and the ability to lead projects while collaborating with cross functional teams in a fast-paced environment.

Key Responsibilities

• Network Design & Implementation:

Design and implement secure network solutions tailored to enterprise needs.

Plan, document, and execute network changes and extensions.

Create and maintain corporate network architecture (LAN/WAN/WLAN/SECURITY).

Configure and manage routing protocols, including OSPF, EIGRP, and BGP.

Implement and manage VTP, VLAN, VPN, and IPSEC configurations.

Configure and maintain HSRP, DHCP, QoS, and ACLs on Cisco devices.

• Network Operations & Troubleshooting:

Operate and maintain Cisco L2/L3 switches, routers (including Nexus 9K), and Meraki wireless networks.

Monitor and troubleshoot network performance, ensuring minimal downtime.

Perform root cause analysis (RCA) and resolve network/security issues within SLA.

Define, monitor, and report KPIs for network services and devices.

• Security Management:

Operate, monitor, and configure Cisco ASA, FortiGate, and Palo Alto firewalls (including Panorama management).

Utilize Cisco Identity Services Engine (ISE) for advanced security.

Orchestrate firewall rules and underlying security configurations.

Conduct audits and improvements to meet and exceed security standards.

Design disaster recovery plans with a focus on operational security.

• Leadership & Collaboration:

Act as a project leader for network-related initiatives.

Collaborate with stakeholders and service providers to meet organizational goals

Provide mentorship and next-level support for network-related issues.

Support international deployments and manage proof of concepts or feasibility studies.

Required Qualifications:

Minimum 8 years of professional experience in networking and security roles.

Strong communication skills for interaction with stakeholders and cross functional teams.

Expertise in enterprise network design, implementation, and operations

Proven ability to handle complex issues and resolve them within tight deadlines.

Preferred Skills & Certifications:

CCNA/CCNP (mandatory)

PCNSA/PCNSE (preferred)

Technical Expertise:

Hands-on experience with SDWAN technology and network automation.

Proficiency in Aruba wireless networking.

Familiarity with VPN technologies and enterprise-grade security solutions.

Work Environment & Requirements

Five-day, on-site work schedule.

Willingness to work in shifts, including 24x7x365 support with on-call availability during weekends.

Flexibility to travel and support global infrastructure initiatives.

Soft Skills Independent, goal-oriented, and self-motivated.

Strong analytical and technical writing skills.

Excellent team player with the ability to collaborate across departments.

High-risk awareness and accuracy in execution.

Language Skills

Proficiency in English (oral and written)

• Configure assets as per their compliance applications.
• Does Hardware and software related troubleshooting.
• Addressing Application related concerns via a remote tool
• Address escalation and priority concerns (VIP users) 
• Trouble shooting on all kind of desktop calls. 
• Configuring network services such as LAN. Win proxy & DNS services. 
• Installation & Troubleshooting of printer calls. 
• Configuration of MS Outlook, Outlook Express & solving related problems on user systems.  
• Installing & configuring different Windows based Application Software’s. 
• Configuring and troubleshooting for RDP.  
• Installing & configuring client system to the domain. 
• Installing, Configuring, Monitoring & troubleshooting network printers & solving related problems on user systems. 
• User profile management. 
• Remote configuring enables the Remote Desktop on the host PC and add/enable Remote Desktop users. 

• Knowledge on CAMPUS LAN Architecture and implementation

• Having exposure to Cisco’s latest technologies like SDA, DNAC

• Hand-on experience on designing and implementing Cisco SDA

• Strong Routing & Switching, Cisco SDA, DNAC, Cisco ISE skillset is a must.

• Hands On expertise on Cisco Prime, ISE, Cisco Meraki

• Hands on and troubleshooting SDA

• Experience on L 3

• Install and configure software and hardware
• Manage network servers and technology tools
• Set up accounts and workstations
• Monitor performance and maintain systems according to requirements
• Troubleshoot issues and outages
• Ensure security through access controls, backups and firewalls
• Upgrade systems with new releases and models
• Develop expertise to train staff on new technologies
• Build an internal wiki with technical documentation, manuals and IT policies
• Maintain all local software and hardware licensing to ensure conformance.
• Support determination of local and customer needs for yearly budgeting process and request for proposal processes.

• Any B.Tech / BE graduate
• Minimum 3+ years of experience into IT system administration
• A working knowledge of IT operating systems, particularly Windows, IOS
• Hands on experience of installing IT hardware and software
• Strong communication skills

• Proven experience as a System Administrator, Network Administrator or similar role
• Experience with databases, networks (LAN, WAN) and patch management
• Experience with Firewall management
• Handling LAN / WAN networks an coordinating with ISPs
• Working with vendors for purchasing / renting laptops and desktops.
• Knowledge of system security (e.g. intrusion detection systems) and data backup/recovery
• Familiarity with various operating systems and platforms
• Resourcefulness and problem-solving aptitude

Chennai