Network Practice – L2 Network SME at Infosys Limited, Bangalore: Career Overview

Job Title: Network Practice – L2 Network SME
Location: Bangalore, India
Company: Infosys Limited
Job Reference Code: INFSYS-EXTERNAL-216679
Experience Required: 3–6 years
Service Line: Cloud & Infrastructure Services

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Introduction

Infosys Limited, a global leader in digital services and consulting, is looking for a skilled L2 Network SME (Subject Matter Expert) to join its Cloud & Infrastructure Services team in Bangalore. This role calls for networking professionals with a strong foundation in enterprise-level network architecture, deep technical know-how of various network protocols, and hands-on experience in modern data center and SDN technologies.

As digital transformation drives more businesses into the cloud, the demand for secure, scalable, and intelligent network infrastructures continues to rise. This makes the role of a Network SME crucial in maintaining performance, availability, and security of mission-critical networks.

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Key Responsibilities

As an L2 Network SME at Infosys, you will work on complex networking infrastructures and play a vital role in delivering high-quality support, network enhancements, and future-ready architectures. Here’s an overview of the primary responsibilities:

1. Comprehensive Network Protocol Expertise

You will be expected to demonstrate a robust understanding of core and advanced networking protocols including:

• SD-WAN and SD-LAN

• TCP/IP, MPLS

• Routing protocols such as BGP and OSPF

• Wireless technologies: WLC (Wireless LAN Controller), WAPs (Wireless Access Points)

• LAN technologies: VLANs, Spanning Tree Protocol (STP)

Your deep technical grasp of these protocols will help ensure optimal network performance, effective routing, and rapid troubleshooting.

2. Data Center Network Architecture

Infosys seeks professionals with hands-on experience working in data center environments, particularly in designing or managing architectures that incorporate:

• Cisco ACI (Application Centric Infrastructure)

• Spine-leaf topology

• Flat vs. hierarchical designs for improved data throughput and reduced latency

You will be expected to plan, deploy, and maintain scalable data center networks that support virtualization, cloud deployments, and high-availability services.

3. Device Configuration & Management

As an L2 Network SME, one of your core duties will be to configure and maintain a variety of network devices such as:

• Routers

• Layer 2 and Layer 3 switches

• Access Points

• Firewalls

You will follow industry best practices and organizational standards to ensure the configuration is secure, stable, and optimized for performance.

4. Security and Compliance

Security is a major focus area. You will:

• Implement basic network security configurations (ACLs, firewalls, port security)

• Collaborate with security teams to enforce advanced security measures

• Ensure compliance with company-wide security policies and auditing requirements

5. Network Monitoring and Analysis

Being proactive is key. You’ll need to continuously monitor network KPIs such as:

• Bandwidth utilization

• Packet loss

• Latency and jitter

Using tools like SolarWinds, Cisco Prime, and Cisco DNAC, you’ll help detect issues before they escalate and reduce downtime significantly.

6. Advanced Troubleshooting Skills

A Network SME is often the go-to person when issues arise. You must be adept in:

• Packet capture analysis

• Using diagnostic tools like ping, traceroute, Wireshark

• Identifying and isolating faults at Layer 1 through Layer 4

Troubleshooting wireless networks, particularly across Cisco, Aruba, and Juniper platforms, will also be part of your expertise.

7. ITIL Process Adherence

Infosys places a strong emphasis on process-oriented work. Therefore, knowledge and experience in ITIL practices are required, especially across:

• Incident Management

• Change Management

• Problem Management

• Configuration Management

This ensures service delivery is smooth, structured, and aligned with global ITSM standards.

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Preferred Skills and Domain Expertise

To succeed in this role, you should bring practical experience in various network technologies and have a background that supports both operational and strategic networking decisions.

1. Technology Proficiency

You should possess in-depth knowledge and/or certifications in the following areas:

• CISCO Technologies: Nexus, Catalyst Series

• Wireless Technologies: Aruba APs and controllers, Cisco WLC

• Software Defined Networking (SDN): Cisco ACI, SDWAN

• NFV (Network Function Virtualization): Exposure to virtual network functions and overlays

2. Networking Products & Tools

Hands-on experience in a multi-vendor environment is highly valued. You must be comfortable working with:

• Routers/Switches: Cisco, Juniper, HPE, Aruba, Fortinet, Arista

• SD-WAN Vendors: Viptela (Cisco), Versa, Aryaka, Silver Peak

• Network Monitoring Tools: Cisco DNAC, SolarWinds, BMC

• Ticketing Systems: ServiceNow, JIRA

• Load Balancers: F5, Citrix NetScaler, VMware AVI

• DNS/DHCP/IPAM solutions

This product knowledge ensures smooth integration and quicker resolution of network-related incidents or changes.

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Who Should Apply?

This position is ideal for mid-level professionals in the networking domain who:

• Have 3 to 6 years of hands-on experience managing enterprise-class networks.

• Are comfortable with hybrid cloud-network architectures.

• Understand network automation, orchestration, and SDN concepts.

• Have previously worked in organizations adhering to ITIL frameworks.

• Wish to grow into a Network Architect, Lead SME, or Network Security Consultant roles in the near future.

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Educational Requirements

Candidates applying for this position should have completed:

• Bachelor’s or Master’s degree in Engineering (B.E./B.Tech/M.E./M.Tech)

• Bachelor of Computer Applications (BCA)

The role demands a solid academic foundation in networking, information systems, or computer science principles.

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Career Growth Opportunities

Working as a Network SME with Infosys opens the door to several career pathways such as:

• Network Security Lead

• Cloud Network Engineer

• SDN/NFV Consultant

• Enterprise Network Architect

• Technical Delivery Manager – Infrastructure Services

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Why Join Infosys?

• Global Presence: Be part of a company that operates in over 50 countries with top clients in banking, telecom, retail, and healthcare sectors.

• Innovation First: Work on cutting-edge technologies including SD-WAN, AI-driven network monitoring, and next-gen firewalls.

• Learning Culture: Continuous upskilling through Infosys Lex, access to external courses, and live project experiences.

• Diversity and Inclusion: Infosys fosters a diverse, equitable, and inclusive workplace.

• Growth-Oriented: Clear promotion frameworks, transparent performance evaluations, and mentorship from industry leaders.

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Application Process

Interested candidates can apply directly through the Infosys Careers Portal using the Job Reference Code: INFSYS-EXTERNAL-216679. Ensure your resume highlights:

• Relevant experience in network protocol handling

• Projects involving SD-WAN and Data Center solutions

• Certifications (if any): CCNA, CCNP, Cisco ACI, Aruba, etc.

• ITIL and ticketing system exposure

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Final Thoughts

The Network Practice – L2 Network SME role at Infosys is a perfect opportunity for networking professionals looking to work at the forefront of enterprise networking. This role combines deep technical engagement, cross-functional collaboration, and opportunities for leadership in an environment known for excellence and innovation.

If you have the skills and passion to lead infrastructure initiatives and are excited to work with some of the world’s most renowned enterprises, then this role could be your next career milestone.

Apply Here