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L3-Network Engineer Onsite

IBM

2 - 5 years

Chennai

Posted: 28/06/2026

Job Description

Introduction

At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high-resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability. Our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. You’ll work with diverse technologies and colleagues worldwide to deliver resilient, future-ready solutions that power innovation. With continuous learning, career growth, and a supportive culture, IBM provides the opportunities to build expertise and shape the infrastructure that drives progress.

Your role and responsibilities

Minimum 10 Years’ experience in handling large network

operations centre, preferably with software defined data centre

networks

Experience in handling of implementation and management of

large size WAN (minimum 300+ data centre devices)

Experience in handling various topologies using routing protocols

including OSPF and BGP

Knowledge of service provider MPLS network

Hands on experience on Cisco ACI Technology or equivalent

technology, Data Centre Networking, Network Security, SD WAN

and Virtualization Management.

a) Escalation support for complex problem resolution to L2 team

and is responsible for maintaining, configuring, troubleshooting

and up keeping of the entire bank’s network including all data

centers and external business partner networks.

b) Analyse, approve and provide Root Cause Analysis (RCA) for

any critical incidents

c) Should be available on all working days of the bank and on any

exigencies like planned/unplanned activities including DR

Drills/network outages/issues on critical devices

 

d) L3 will lead the NOC, head Help desk and coordinate for new

projects, coordinate with OEM other departments and external

business partners, should be part of emergency Response

Team, perform network amalgamation and migration, network

architecture changes, root cause analysis, and resolve other

network issues

e) Arrive at the network topology changes/addition/deletion

whenever required by the bank and update the topology diagram

accordingly.

f) Is responsible for providing the “plan of action” for the DR Drill,

other drills and coordinate with other user/technical departments,

service providers for successful completion of the DR Drill and

provide reports.

g) Should be conversant with Network infrastructure planning,

complex change and configuration management, audit, training

etc.

h) Prepare Plan of Action for the activities/Configurations to be

performed.

i) Should induct/remove network devices at critical locations

j) Fix the vulnerabilities and audit findings

k) Apply of Patch for bug fixes

l) Follow up on TAC cases

 

 

Valid CCIE Routing and Switching (Lab) or CCIE Data Centre

(LAB) or JNCIE (LAB) or equivalent expert level certification

(including LAB exam) from reputed OEMs(not related to firewalls)

Required education
Bachelor's Degree
Preferred education
Bachelor's Degree
Required technical and professional expertise

• Exposure to Networking Technologies: Solid base of networking knowledge, including hardware and software products, with proficiency demonstrated through Digital Technical Certifications such as Cisco CCNA/CCNP/CCIE, Juniper JNCIA/JNCIS/JNCIP/JNCIE, ADVA ACE FSP 3000, F5 201/301/302/303/304/401, Palo Alto PCNSE, Check Point CCSE, Fortinet NSE4/NSE5/NSE6/NSE7/NSE8, Riverbed RCPE Professional WAN-Op. • Experience Working with Debug Equipment: Familiarity with specialized debug equipment to isolate issues, document action plans accurately, and replicate device failure mechanisms using lab hardware. • Understanding of Cognitive Support Platforms: Exposure to Cognitive Support Platform (Salesforce), Watson Einstein Analytics, or other tools to analyze trends and drive automation. • Knowledge of Networking Technologies Documentation: Ability to analyze knowledge centers for different Networking technologies and generate technical documentation for service personnel and clients. • Experience with Remote Technical Support Delivery: Familiarity with providing remote technical support service delivery within established guidelines, demonstrating technical skills that contribute to client satisfaction.

Preferred technical and professional experience

• Advanced Networking Certifications: Exposure to higher-level Digital Technical Certifications such as Cisco CCNP/CCIE, Juniper JNCIS/JNCIP/JNCIE, or equivalent. • Specialized Debug Equipment: Experience working with advanced debug equipment to isolate complex issues and document action plans accurately. • Cognitive Support Platform Analytics: Exposure to advanced analytics tools within Cognitive Support Platform (Salesforce), Watson Einstein Analytics, or other tools to drive automation and improve effectiveness.

Years of Experience:
10 - 15

ABOUT BUSINESS UNIT

IBM Systems helps IT leaders think differently about their infrastructure. IBM servers and storage are no longer inanimate - they can understand, reason, and learn so our clients can innovate while avoiding IT issues. Our systems power the world’s most important industries and our clients are the architects of the future. Join us to help build our leading-edge technology portfolio  designed for cognitive business and optimized for cloud computing.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you’ll be able to learn and develop yourself and your career, you’ll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

 

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

 

Are you ready to be an IBMer?

ABOUT IBM

IBM’s greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

 

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we’re also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business. 

 

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it’s time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

OTHER RELEVANT JOB DETAILS

When applying to jobs of your interest, we recommend that you do so for those that match your experience and expertise. Our recruiters advise that you apply to not more than 3 roles in a year for the best candidate experience. For additional information about location requirements, please discuss with the recruiter following submission of your application.

About Company

IBM (International Business Machines Corporation) is a leading global technology and consulting company, headquartered in Armonk, New York. With over a century of innovation, IBM provides a wide range of technology solutions and professional services. The company specializes in cloud computing, artificial intelligence (AI), data analytics, quantum computing, and cybersecurity, helping organizations digitally transform their operations. IBM’s flagship AI platform, Watson, and its hybrid cloud capabilities are widely used across industries such as healthcare, finance, government, and manufacturing. IBM is known for its strong commitment to research and development, and it consistently ranks among the top organizations for U.S. patents.

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