Open To Work
Vishal Tewari
Edmonton,Canada
Work Preference
Summary
Dynamic Technical Specialist with extensive experience at AT&T, excelling in SD-WAN technologies and incident management. Proven track record in optimizing network performance and resolving complex issues. Adept in BGP and MPLS, with strong vendor relations and collaboration skills, ensuring high availability and seamless operations for enterprise clients.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Technical Specialist (SME)
AT&T Communication Services India Pvt. Ltd.
01.2022 - 12.2024
- Provided Level 3 operational support for Velo SDWAN, HP Silverpeak, Viptela SDWAN, and Flexware hypervisor (VNFs), ensuring optimal network performance.
- Acted as SPOC (Single Point of Contact) for escalations, delivering proactive and reactive support to enterprise clients.
- Diagnosed and resolved complex network incidents related to BGP, MPLS, and SDWAN.
- Collaborated with cross-functional teams and vendors to ensure seamless network operations and rapid incident resolution.
Senior IP Expert
Orange Business Services (OBS)
03.2016 - 12.2021
- Provided L3 technical support for enterprise clients, specializing in Cisco-based networks, Viptela SDWAN, and MPLS infrastructure.
- Managed escalations, performed network troubleshooting, upgrades, and deployments, and ensured high availability of mission-critical systems.
- Led technical engagement with Cisco TAC, opened service requests, and collaborated on complex network issues.
- Expertise in OSPF, BGP, MPLS VPNs, and LAN protocols (VLAN, STP, RSTP, VTP).
Associate Consultant – Change Management
HCL Technologies Ltd.
05.2014 - 03.2016
- Ensured seamless multicast DIRECTV feeds transmission across regional centers through effective network change management.
- Configured STP, RSTP, HSRP, and VRRP to optimize network redundancy and failover mechanisms.
- Collaborated with Cisco TAC to resolve hardware and software issues promptly.
- Implement the Fortinet firewall configuration under the change request.
NSS Network Engineer
Orange Business Services (France Telecom)
07.2008 - 05.2014
- Provided extended troubleshooting and support for BGP, MPLS, ISIS, and TE-based backbone networks.
- Maintained high-performance networks comprising Cisco 7200, 7600, ASR1K, and 12416 (IOS XR) routers and Nortel Passports (7400, 15000, 20000 series).
- Implemented high-impact network changes while adhering to strict change management protocols.
Education
Bachelor of Engineering (B.E.) - Computer Science
IETE
Diploma in Computer Applications -
Tata Infotech
Skills
- Network design and implementation
- Routing protocols
- BGP and OSPF
- MPLS and EIGRP
- SD-WAN technologies
- Cisco and Juniper expertise
- Cloud networking solutions
- AWS and Azure proficiency
- Incident and change management
- Vendor relations and support
- Troubleshooting and optimization
- Virtualization technologies
- Network security measures
- Firewalls and VPNs
- AAA and TACACS
- Switching technologies
- VLAN and VTP management
- STP and RSTP protocols
- EtherChannel configuration
- Tools and platforms expertise
Certification
• Cisco Certified Network Professional (CCNP)
• SD-WAN (SilverPeak, Viptela, Meraki) Training – AT&T
• Cisco MPLS VPN, Traffic Engineering, & BGP Training
• ITIL Foundation Certified – [2015]
• SD-WAN (SilverPeak, Viptela, Meraki) Training – AT&T
• Cisco MPLS VPN, Traffic Engineering, & BGP Training
• ITIL Foundation Certified – [2015]
Languages
- English
- Hindi
Work Authorization
Open to opportunities in Canada
Personal Information
- License: Valid class 5 license
- Nationality: Indian
Timeline
Technical Specialist (SME)
AT&T Communication Services India Pvt. Ltd.
01.2022 - 12.2024
Senior IP Expert
Orange Business Services (OBS)
03.2016 - 12.2021
Associate Consultant – Change Management
HCL Technologies Ltd.
05.2014 - 03.2016
NSS Network Engineer
Orange Business Services (France Telecom)
07.2008 - 05.2014
Bachelor of Engineering (B.E.) - Computer Science
IETE
Diploma in Computer Applications -
Tata Infotech