Sambasiva Davuluri
Cumberland,RI
Summary
- Cisco Certified Network Engineer with 7 years of experience in implementation, troubleshooting, engineering, managing & migration of large-scale enterprise and Data Center networks. Hands-on experience in deploying, implementing, integrating, and supporting network equipment and analysis for a broad range of LAN / WAN communication systems. Dealt with Nexus models like 9k, 7K, 5K series, Cisco router models like ASR, ISR 8300, 4400, 3800, 3600, 2800, 2600, 2500 and 1800 series and Cisco catalyst 9500, 9300, 6500, 4900, 4500, 3750 and 2900 series switches. Involved in multiple projects covering Data and Telecom services within the organization. Experience in installing and troubleshooting of WAN technologies like T1/T3, SONET, DWDM circuit types. Experience in Configuration and Support of LAN protocols on Cisco Switches such as Layer2, Layer3 and Multi-Layer. Working knowledge of network protocols like DHCP, DNS, TFTP, ARP, Telnet/SSH etc. In depth knowledge on internet protocols like IPv4 and IPv6. Working knowledge with monitoring tools like SolarWinds and CA spectrum. Hands on experience with automation tools like CISCO DNA center, NetBrain. Excellent team player with effective communication and leadership skills, Capable of Problem solving, Time management and decision-making skills with the ability to set priorities and produce results. Worked in different type of organizations covering Finance, Telecom, ISP. Knowledge on Scripting tools like Python. Worked in 24
- 7 rotational work environment. Extensive experience using Microsoft suite like Word, Visio, Excel, PowerPoint.
Overview
7
7
years of professional experience
2
2
years of post-secondary education
1
1
Certification
Work History
Network Engineer
CVS Health
3 2022 - Current
- Responsible for deployment and Migration of obsolete network infrastructure including cisco routers, switches, wireless controllers and Access points
- Catalyst 9300s for access layer, 9500 for distribution and Nexus for core network
- Worked with Automation tools like Cisco DNA center and NetBrain including deployment and upgrades on regular basis
- SolarWinds is the tool we use to monitor the network stability and periodically to generated multiple reports on network infrastructure like compliance, Device health, Vulnerability, Utilization etc
- To have high visibility on the Network
- Worked on multiple projects involving design, build, and troubleshooting of any network related issues
- Responsible for implementing Cisco ACI solution across Data center networks
- Worked closely with network security team for any firewall migrations
- Participated in a rotating 24x7 on-call support in troubleshooting any network related issues as part of migrations activities
- Performed network changes involving complex network design as part of Network modernization (NEMO) following standard change management procedures and policies.
Network Engineer
PTC
02.2022 - 03.2022
- Worked on multiple projects involving design, build, and troubleshooting of any network related issues
- Implemented advanced routing protocols such as BGP, OSPF, EIGRP and RIP for complex network designs
- Conducted research into emerging technologies and evaluated their application within existing networks and systems architecture
- Successfully administered, monitored and maintained a large-scale network infrastructure utilizing Cisco IOS and NX-OS technologies
- Redesigned internet connectivity infrastructure for meeting bandwidth requirements
- Collaborated with department leaders to assess near-and long-term network capacity needs
- Developed comprehensive documentation of the entire network infrastructure including diagrams, inventory management and policies
- Worked with Automation tools like Cisco DNA center and Net Brain including deployment and upgrades on regular basis
- Participated in a rotating 24x7 on-call support in troubleshooting any network related issues as part of migrations activities.
Data Networks Engineer
Santander Bank
08.2019 - 11.2021
- Responsible for sustaining a network spanning 2 data centers, 20 corporate sites and 600 commercial branches
- Supported infrastructure encompasses more than 4000+ switches, routers, firewalls, Wireless Lan controllers and Wi-Fi APs, securing 21,000+ switch ports via 802.1x access control
- Accountable for trending analytics of capacity and performance management as well as composition and reporting of monthly KPI/KRI to infrastructure directors
- Periodically generated multiple reports on network infrastructure like compliance, Device health, Vulnerability, Utilization etc
- To have better service quality to the customers
- Hands on experience implementing Cisco Identity Services Engine (ISE)
- Responsible for performing Risk analysis on multiple network platforms like, AD, O365, Carrier circuits, Teams
- Aided in troubleshooting potential network issues in rolling out ISE
- Worked on migrating layer 3 for 600 branches on to SD-WAN platform
- Working with the provider for any issues with the SD-WAN network
- As part of Data Center Operations, worked on performing duties like change management of Cisco Routers and Switches according to the organization requirements
- Deployments of SolarWinds, VMWare, Documentum, SharePoint, and various other database solutions
- Upgraded, fixed, and maintained SolarWinds website and applications
- Created alerts, pages, reports, and groups, as well as custom properties, application monitors, and import nodes in SolarWinds
- Hands on experience on Cisco DNA for the centralized management of the network devices
- Worked on fiber optic cabling and troubleshooting related issues
- Worked on migrating all authentications from TACACS/RADIUS to Cisco ISE
- Ensure that all network and voice systems adhere to established Santander Bank policies, procedures, standards, satisfying internal and external regulatory requirements
- SME for the Net Brain and worked on configuring required Database servers as well as necessary upgrades
- Participated in a rotating 24x7 on-call support in troubleshooting any network related issues.
Network operations Engineer
Altice USA
06.2017 - 07.2019
- Performing standard network operations via ITIL standard with Incident Management and Change Management
- Proactively monitor, analyze, and review the network and execute problem avoidance practices to maintain an elevated level of reliability and availability
- Actively using Cisco ISE for troubleshooting network issues
- Worked extensively on Routing, Switching, Security, VoIP, and Video issues on daily basis
- Responsible for handling high profile clients: provided root cause analysis and warranty replacements
- Repairing and maintaining TCP/IP networking and hardware
- Checking layer 2 and layer 3 connections for call manager, unity, IP Phone, and IOS router after the site is implemented
- Responsible for operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc
- Experience with Enterprise network management application like Netcool by successfully monitoring for any loss of service to the customers and any changes required to the existing network
- Manage and support 150 + Cisco Routers, 300+ switches including 7200, 3900, 3800, 3600, 2800, 2600 routers, 6500, 4500, 3750, 2900 series switches and Nexus 7k, 5k, 2k series devices
- Managed, coached, and mentored 11 Direct Reports in the daily operations of Field Installation and Maintenance of Business and Residential Telephone Lines
- Participated in a rotating 24x7 support schedule for the Network operation Center in an outage period.
Education
Masters in Electrical and Electronics Engineering -
Lawrence Technological University
Southfield, MI 05.2015 - 05.2017
Bachelor’s in electrical and electronics engineering - undefined
JNTU
05.2014 - undefined
Certification
CCNA - Cisco Certified Network Associate
Technicalskills
Cisco routers (8300, 7200, 3900, 3600), Cisco Catalyst switches (9500, 9300, 6500, 4900, 3750, 2900 series), Nexus 9k, 7k series DC switches, OSPF, EIGRP, BGP, VLAN, VTP, STP, Multi-Layer Switching, Layer 3 Switches, HSRP, DNS, DHCP, VLAN, STP, VTP, Ether Channel, Trunks, Cisco 9800, 5520, 5508 series controllers, Cisco 3702, 3802, 9120 series Aps
Timeline
Network Engineer
PTC
02.2022 - 03.2022
Data Networks Engineer
Santander Bank
08.2019 - 11.2021
Network operations Engineer
Altice USA
06.2017 - 07.2019
Masters in Electrical and Electronics Engineering -
Lawrence Technological University
05.2015 - 05.2017
Bachelor’s in electrical and electronics engineering - undefined
JNTU
05.2014 - undefined
Network Engineer
CVS Health
3 2022 - Current
CCNA - Cisco Certified Network Associate
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