Summary
Overview
Work History
Education
Skills
Certification
Timeline
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Vishal Sahu

New Delhi

Summary

Network Architect with 4.5 years of expertise in presales, solution design, and enterprise network implementation. Proficient in Cisco technologies including switching, routing, wireless, and SD-WAN. Developed high-level and low-level designs, along with Bill of Materials, ensuring client satisfaction. Successfully delivered multiple scalable network solutions focused on high availability and cost efficiency.

Overview

5
5
years of professional experience
1
1
Certification

Work History

Presales Engineer

Seamless Infotech Pvt. Ltd.
09.2024 - 06.2025
  • Designed IT network and security solutions for small, mid-sized, and enterprise clients.
  • Delivered technical presentations and live demos aligned with business objectives.
  • Created statements of work, high-level designs, and low-level designs for presales projects.
  • Provided technical expertise in RFP responses to match IT solutions with client requirements.
  • Worked extensively on Cisco platforms, including Catalyst 9K/8K, DNAC, ThousandEyes, and Meraki.

Network Administrator

Sinch
Noida
05.2021 - 07.2023
  • Designed, implemented, and maintained disaster recovery and data center network environments.
  • Deployed routers, switches, and firewalls to ensure high availability and optimal performance.
  • Developed comprehensive disaster recovery and business continuity plans for network infrastructure.
  • Executed complex network troubleshooting by analyzing traffic patterns and optimizing performance.
  • Automated configurations and operational tasks utilizing Python scripts for efficiency.

Network Consultant

Proactive Data Systems Pvt. Ltd.
05.2021 - 07.2023
  • Developed Cisco BoMs utilizing Cisco CCW, ensuring alignment with project specifications.
  • Executed PoCs for technologies such as DNAC, Cat8K routers, and ThousandEyes.
  • Designed network architecture and solutions for small, medium, and enterprise networks.
  • Deployed Cisco Catalyst 8K routers and 9K switches to enhance availability and performance.

NOC Engineer

Fusionnet Web Services Pvt. Ltd.
Noida
12.2020 - 04.2021
  • Delivered Level-1 and Level-2 support for troubleshooting network issues.
  • Initiated response protocols for network NMS alerts, ensuring timely resolutions.
  • Conducted analysis and tuning of network monitoring systems for optimal performance.
  • Performed incident response, collaborating with site technicians to resolve system problems.
  • Configured and managed network switches, leased lines, point-to-point connections, and MPLS connections.

Education

Bachelor of Arts - Pol. Sci. Hons.

Delhi University
Delhi, India
01.2021

High School Diploma -

Industrial Training Institute, Pusa
Delhi

Skills

  • Core networking and infrastructure
  • Enterprise networking
  • Network protocols
  • IP services
  • Wireless technologies
  • Security and access control
  • Firewall management
  • Network design
  • Network troubleshooting
  • Solution architecture
  • Teamwork and collaboration
  • Problem-solving aptitude
  • Pre-sales support
  • Switching technologies
  • Routing protocols
  • SD-WAN and cloud solutions
  • Automation and management tools
  • Presales support
  • Design and documentation
  • HLD, LLD, and SOW creation
  • Cisco CCW expertise
  • Stakeholder engagement
  • Proposal development
  • RFP responses
  • Customer presentations and demos
  • Diagramming software proficiency
  • Microsoft Visio and Drawio
  • Microsoft Office Suite proficiency
  • Wireshark analysis tools
  • Monitoring solutions (PRTG, SolarWinds)
  • CRM systems (Salesforce, Microsoft Office)

Certification

  • CCNA, CSCO 13616809
  • CNSS (Certified Network Security Specialist), euvhz2wphj
  • CCNP ENARSI & ENCOR training certificate
  • CCNA DevNet training certificate

Timeline

Presales Engineer

Seamless Infotech Pvt. Ltd.
09.2024 - 06.2025

Network Administrator

Sinch
05.2021 - 07.2023

Network Consultant

Proactive Data Systems Pvt. Ltd.
05.2021 - 07.2023

NOC Engineer

Fusionnet Web Services Pvt. Ltd.
12.2020 - 04.2021

Bachelor of Arts - Pol. Sci. Hons.

Delhi University

High School Diploma -

Industrial Training Institute, Pusa

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