Md Riyazuddin is a network engineer with over 2 years of experience working for IBM on their Bharti Airtel network project. He has a Bachelor's degree in electronics and communication engineering and holds CCNA, CCNP, and MCSE certifications. His responsibilities include installing, configuring, and troubleshooting Cisco routers and switches; providing onsite network support; and managing firewalls, routing protocols, and monitoring tools to ensure high network uptime.