I am Security Researcher || Bug Hunter || Network Administrator

I have completed my Bachelor Degree in Electronics in the year of 2014 and after that, I have joined the CCNA course and certified that as well.
My first company was Stormfur technology. That time I was a fresher so I joined as IP Network Engineer. It was a small company. It was a Level 1 job and my responsibility to check the network connectivity of customers. Create a ticket with ISP and any issue with Hardware create a case with the vendor and follow up with them. Also, escalate to senior depends on the severity of the issue.

My previous company was Endurance International Group. I joined as a Network Administrator.
I got too much exposure to this company. That's why I was working with this company for around 3.5 years. I have joined the 24x7 Network Operation Center Team.

As Network administrator role, day to day my responsibility was monitor, analyse and troubleshoot networking related issues across the globe.

Manging Network related issues in a number of data centres globally i.e India, USA, Turkey, Hong Kong, China, UK. Monitoring and troubleshooting base on Monitoring tool i.e NMS Cacti, Nagios, LibreNMS, Solarwind(tried but not accurate), site24x7, Pingdom.
In day to day, everyday need to check DDOS mitigation status if there is no attack on IP then remove the subnet/IP from the mitigation. Check Dashboard if any ticket is raised by customers or internal team and assign with yourself or manager assigned tickets. Understand the cause and resolve the issue asap within SLA. Ticket such as VLAN change, Whitelisting/blacklisting IPs, Configure Security rule in Paloalto firewall, Also, manage IPSec VPN tunnel if any network connectivity issue happened in the shift. In the company BGP, OSPF and the static route is using.

Also, I had a night shift on call if any issue occurred in the night then responsible to available. Additionally, maintain company network infrastructure including wifi. So I have hands-on experience on Cisco WLC and Aruba Wifi Controller. TO co-ordinate with System team, Corp-IT team, DevOps team and troubleshoot the issue according to the ticket raised by them.
Routers:
Cisco 7200, 6500, 3700 series, Juniper all MX series.
Switches:
Cisco 6500, 4500, 3750, 3560, 3550, 2900,2600, Juniper EX series, Nexus 2K and 5K
Firewall:
Palo Alto Firewalls (PA-2000, PA-3000, PA-4000, PA-5000, PA-500, PA-200, 7050), Panorama and VM-series, CISCO ASA 5500 Series, Juniper SRX 550, Sonicwall

I was responsible to update and set up all networking devices with that tool. Because I was the only person in the team who knows Network Automation so using Ansible script I can push all configuration in all networking devises within one 1 minute. I was awarded for this job. Another award, which I was received for Datacenter and Enterprise Network Diagram in Microsoft Visio.

I got an opportunity to work with network implementation team because of the longe term goal project. Which include PCI DSS project and Wifi Implementation in Enterprise offices in global offices.

I am always passionate about new technology does not matter what type of technology. That's why my previous company gave me an opportunity to improve my skills and put that knowledge in the project.
I am certified CCNA, JNCIP-ENT, PCNSE, CEH. Cloud Certification: AWS and Azure.

Currently, I am pursuing MSc.Cyber Security from National College of Ireland. While pursuing, MSc. I learned too many things about Network security and Web application security. Also, gain knowledge about cryptography, IT law and ethics of Ireland.

In my spare time, I usually spend time on Bug Hunting on live websites. Recently I was awarded Hall Of Fame from Shopclues. Also, Find Number of vulnerabilities in Indian Government websites.