Raghav Trehan
Bangalore
Summary
Experienced Network and IT Security Engineer with 10+ years in designing, implementing, and maintaining secure, high-performance network infrastructures. Proficient in Cisco Enterprise Solutions, network optimization, and change management. Skilled in problem resolution, network design, and leading successful implementation projects. Adept at enhancing team performance and delivering exceptional customer service while ensuring robust security and operational efficiency.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Network Operations Engineer Tier II
LKQ India Private LTD
Bangalore
03.2021 - Current
- Design, implement, and maintain complex LAN/WAN infrastructure using Cisco devices, ensuring optimal performance, security, and resilience through upgrades and modifications.
- Monitor and optimize network performance, troubleshoot outages, and collaborate with architects and vendors to resolve issues and improve network efficiency.
- Conduct periodic network assessments, identify areas for improvement, and implement new solutions to enhance system reliability and performance.
- Manage network security, including VPNs, firewalls, and device configurations, while troubleshooting complex LAN/WAN infrastructure and maintaining enterprise-level systems.
- Collaborate with cross-functional IT teams, project engineers, and vendors to ensure seamless network operations, upgrades, and incident resolution.
Senior Specialist
HCL Technologies Pvt. Ltd
Noida
05.2020 - 01.2021
- Monitor, troubleshoot, and optimize network performance, collaborating with architects and vendors to resolve outages and implement upgrades.
- Design, implement, and maintain enterprise networks, including switches, routers, firewalls (Palo-Alto, ASA), and VPN configurations.
- Manage network security through vulnerability scans, malware analysis, and risk control measures to protect global infrastructure.
- Handle incident, change, and problem management systems, create technical documentation, and coordinate cross-team efforts for patches and configurations.
Problem & Change Manager
Vodafone Intelligence Solutions
Bangalore
09.2018 - 05.2020
- Act as the primary customer contact, driving PIR calls, ensuring proactive monitoring, and providing immediate response to network events.
- Provide technical direction, manage bridge calls, and prepare post-incident reports (PIR) and root cause analyses (RCA) for major incidents.
- Maintain the Service Catalogue, coordinate high-impact changes, and use escalation matrices to ensure timely resolution and business focus.
- Analyze incident trends, manage problem processes, collaborate with global providers, and track risks to improve service quality and availability.
Network Monitoring and Consultant
Vodafone Intelligence Solutions
Bangalore
10.2014 - 09.2018
- Troubleshot and maintained enterprise networking devices (switches, routers, firewalls) and configured wireless controllers for seamless operations, resolving LAN, IP, and switching issues (VLAN, VTP, STP, HSRP).
- Designed and implemented secure network solutions, ensuring robust infrastructure through firewalls, appliances, and optimized performance via root cause analysis.
- Led Sev1/major incident bridges, ensured SLA compliance, and provided 24/7 support for business-critical applications, collaborating with vendors to resolve outages.
- Upgraded network systems, administered IP programs, and managed tools like Cisco Prime, NetFlow, and Netcool Gold for efficient network management.
- Configured access servers, implemented security policies (ACL, Firewall), and managed Cisco Meraki access points, while training support staff for operational excellence.
Education
B. Tech - Mechanical Engineering
Himachal Pradesh University
Himachal Pradesh06.2013
High School Diploma -
D.A.V Public Senior Secondary School
Himachal Pradesh03.2009
Skills
- LAN and WAN expertise
- Cyber Security
- OSPF
- BGP
- EIGRP
- Network Security / Firewalls
- FHRP Protocols & Ether channel
- Security compliance
- Network troubleshooting
- Training and mentoring
- ITIL framework
- IP addressing
- LAN and WAN support
- Cloud networking
- Customer support
- Network automation
- SDWAN
- Performance analysis
- Capacity planning
- Data center operations
- VPN configuration
- Incident management
- Wireless networking
- Switching technologies
- Firewall administration
- Routing protocols
- Network monitoring
- Network optimization
- Team Player
- Service management
Certification
- AWS Certified Cloud Practitioner
- Fortinet NSE 1: Network Security Associate – Fortinet
- ITILv3
- Introduction to Networks (CCNA 1) – Cisco Networking Academy
- The Bits and Bytes of Computer Networking – Google (Coursera)
- Networking Fundamentals – Microsoft Learn
Accomplishments
- LKQ- Spot Award winner (2024)
- VOIS - Best Team Player (2018)
- DAV Badminton Blitz - Winner (2009)
Languages
Hindi
First Language
English
Proficient (C2)
C2
Timeline
Network Operations Engineer Tier II
LKQ India Private LTD
03.2021 - Current
Senior Specialist
HCL Technologies Pvt. Ltd
05.2020 - 01.2021
Problem & Change Manager
Vodafone Intelligence Solutions
09.2018 - 05.2020
Network Monitoring and Consultant
Vodafone Intelligence Solutions
10.2014 - 09.2018
B. Tech - Mechanical Engineering
Himachal Pradesh University
High School Diploma -
D.A.V Public Senior Secondary School
Similar Profiles
Kiran KanaparthiKiran Kanaparthi
Process Consultant at LKQ India Private LimitedProcess Consultant at LKQ India Private Limited
Devaraddi Devaraddi null
Accounts Receivable Associate at LKQ India Private LimitedAccounts Receivable Associate at LKQ India Private Limited
Ishwar PattarIshwar Pattar
AR Associate at LKQ India Private LimitedAR Associate at LKQ India Private Limited