Senior Cisco Network Engineer

Unisys; Bengaluru; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Unisys seeks a seasoned Network Infrastructure Engineer to implement, administer, and troubleshoot complex network environments. You will manage LAN/WAN/WLAN, security devices, and ITIL-aligned change processes while delivering on-call support and vendor coordination.

The role requires hands-on experience with Cisco/Aruba ecosystems, ISE and DNAC, SD-WAN platforms, and cloud environments (Azure/AWS). Strong troubleshooting and problem-solving skills are essential.

Qualifications

• Minimum 6 years of experience in supporting Network Infrastructure.
• ITIL foundation knowledge and certification.
• Hands on experience with Cisco routers, Catalyst/Nexus switches, WLCs & Meraki devices; ISE, DNAC, ACI SD-WAN.
• Good understanding of virtualization concepts.
• Hands on experience with public cloud environments (Azure, AWS).
• Professional level certifications (Cisco CCNA/CCNP; Aruba ACSP/ACSA/ACM).
• Proficient in troubleshooting methodologies and standard practices.
• Able to analyze problems and propose solutions.

Responsibilities

• Implement, administer, and troubleshoot network infrastructure (LAN/WAN/WLAN).
• Troubleshoot fault isolation and resolve per SLA.
• Remotely support customers and onsite technicians for WAN/LAN turn-ups.
• Manage configurations for LAN/WAN/WLAN and security devices.
• Perform network maintenance and upgrades, patches, security configs.
• Handle incident, problem, and change management under ITIL.
• Maintain knowledge base and predesign documents with engineering.
• Be on-call and plan changes per ITIL; meet SLA/OLA targets.
• Coordinate with third-party vendors for issue resolution.

Skills

ITIL knowledge

Cisco devices

Nexus switches

WLCs & Meraki

Aruba devices

Public Cloud

Troubleshooting

Automation

Tools

Cisco DNAC

Cisco ISE

ACI SD-WAN

Silver Peak

VeloCloud

Aruba switches

Job description

What success looks like in this role:

Implement, administer, and troubleshoot network infrastructure, including wireless access points, routers, switches and WLAN controllers. Perform fault isolation and resolution in a methodical and thorough manner in accordance with SLA. Remotely support customers and/or onsite technicians test and turn-ups of WAN and LAN equipment. Configuration management of Local Area Networks (LANs), Wide Area Networks (WANs), Wireless LANs, network segments, security devices and Internet and Intranet systems to ensure operability. Perform network maintenance and system upgrades including patches, hot fixes, and security configuration. Maintain, monitor, and troubleshoot within the roles of Incident Management (Return-to-Service), Problem Management (Reason for Outage) and Change management. Work with engineering department to develop customer and device specific knowledge base. Maintaining and predesign documents for all network infrastructure. Maintains on-call availability to respond to network issues and up-time; must be flexible and available with the scheduling. Plan and implement network changes as per the ITIL change management process. Meet and exceed customer SLA or OLA metrics. Work with third party vendors to remediate and resolve customer issues. #LI-CM1

You will be successful in this role if you have:

• Minimum 6 years of experience in supporting Network Infrastructure.
• ITIL foundation knowledge and certification.
• Hand on experience in following technologies and products: Cisco routers, Catalyst switches, Nexus switches, WLCs & Meraki devices HP, Aruba switches, routers & WLCs Cisco ISE, Cisco DNAC, ACI SD WAN – Silver peak, Velo cloud etc.
• Good level of understanding on the virtualization concepts.
• Hands on experience in Public Cloud environments such MS Azure and AWS Automation of tasks and continuous improvement.
• Professional level certification in one or more fields. (Cisco- CCNA, CCNP, SISE; Aruba - ACSA, ACSP, ACMX, ACSDP)
• Proficient with standard troubleshooting practices and methodologies.
• Ability to think through problems and visualize solutions.
• Knowledge of application, transport and network level protocols.
• Good analytical and problem-solving skills.

Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, blood type, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law. Local employment practices and rights may vary by jurisdiction and are subject to applicable local laws. This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at [e-mail]. US job seekers can find more information about Unisys’ EEO commitment here. Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations. Our solutions – cloud, AI, digital workplace, logistics and enterprise computing – help our clients challenge the status quo and unlock their full potential. To learn how we have been helping clients push what’s possible for more than 150 years, visit unisys.com and follow us on LinkedIn. https://www.unisys.com/unisys-legal/recruiting Notice for U.S. Applicants: Unisys is an Equal Opportunity Employer – Minorities/ Females/ Veterans/ Individuals with Disabilities/ Sexual Orientation/ Gender Identity