DURGAPRASAD KARRI
Rajahmundry
Summary
Acknowledged for strengthening companies to lead in highly competitive markets and delivering innovative Network Engineering concepts and strategies. Expertise in Support, administration, implementation & troubleshooting of network projects. Expert engineer with years of experience maintaining and improving network systems and security
Overview
8
8
years of professional experience
Work History
Network Engineer
Verizon
Hyderabad
04.2024 - Current
- Efficient in handling DDoS operations, maintaining more than 250 customers, actively detecting and mitigating attacks with a volume of more than 1 Tb of traffic.
- Proactive in managing incoming alerts and classifying false positives and real attacks within the SLA.
- Onboard international customers for DDoS operations with process and configuration review.
- Performed MPLS and GRE tunnel configurations, circuit additions, migrations, and deletions as per request for both on-net and off-net customers.
- Perform internal audits to check for any configuration mismatches that fail to perform operations.
- Assist customers with portal walkthroughs and clarify queries raised with respect to the detection, mitigation, and services.
- Monitor the tunnel status and coordinate with the customer to deploy the failover tunnel, both manual and automatic routing setup.
- Perform test mitigations and simulation testing with standalone IPs under pre-production.
- Troubleshoot issues with respect to DDoS attacks and report with a call summary.
- Perform the decommissioning of circuits from DDoS operations with respect to the termination request.
- Report Jira cases for bugs with the monitoring portal at each version, and raise feature requests for service enhancements.
- Prepare monthly reports (MOP), method of procedure, and guide for notifications from portals.
- Deployed NetScout Arbor (Sightline, TMS, and APS) to strengthen multi-site DDoS protection.
- Integrated Arbor with routers, firewalls, and BGP for automated diversion and mitigation.
- Implemented BGP Flowspec and RTBH to rapidly contain volumetric attacks.
- Tuned multi-layer detection profiles to reduce false positives, and improve visibility.
- Led onboarding of new services, IP ranges, and customers into the DDoS platform.
- Performed capacity planning to maintain scrubbing performance and platform scalability.
Senior Emergency Response Team (ERT) Member
WAF
TN
11.2022 - 03.2024
- Administered network and application-level security for cloud and managed clients, delivering security consultations for critical applications.
- Served as the primary liaison for numerous premium accounts, ensuring swift and efficient resolution of security concerns.
- Handled specific security requests from clients, delivering timely consultations, generating reports, and conducting follow-ups to uphold high application and service availability.
- Conducted ongoing cyber threat research to remain informed about zero -day exploits, bot attacks, SSL vulnerabilities, and emerging threats.
- Utilized Wireshark for analyzing PCAP data to troubleshoot application issues with Radware WAF.
- Performed forensic analysis and resolved intricate security -related issues within cloud environments.
- Configured and optimized security settings, reviewed security events, oversaw changes in cloud web application firewall (WAF), and facilitated the onboarding of new applications to WAF.
- Executed manual policy reviews and proposed optimal solutions for enhancing application security.
- Collaborated with clients' network teams to implement best practices for managing application traffic.
- Demonstrated foundational proficiency in CDN, load balancers, firewalls, and various private and public cloud environments.
- Delivered immediate support to clients during web application and DDoS attacks, encompassing detection, mitigation, and documentation.
- Provided DDoS protection solutions for diverse infrastructures, including on-premise data centers and private or public clouds.
SOC Analyst
Cyient
Hyderabad, PSD
09.2017 - 06.2022
- Monitored and analyzed real-time security alerts triggered in SIEM, promptly escalating incidents to respective teams for resolution.
- Produced high-level and low-level documentation for all team processes, including flow diagrams for clarity and reference.
- Conducted specialized investigations, threat analyses, and remediation actions in response to notifications from operators.
- Facilitated and oversaw regular review calls with clients and onsite resources, improving proactive service delivery by refining processes.
- Demonstrated proficiency in documentation, creating comprehensive manuals and newsletters for the SOC and SIEM.
- Collaborated with information security and IT team members to develop and implement innovative strategies for attack monitoring and prevention.
- Implemented white-listing of files and blocked hashes as per requirements, troubleshooting issues by analyzing logs effectively.
Education
Mechanical Engineering -
Sriprakash college of technology-JNTUK
Rajahmundry, AP12.2015
Skills
- PCAP analysis with Wireshark
- Security Policy Configuration and Fine-Tuning
- DDoS Attack Detection and Mitigation
- Splunk
- Elastic
- QRadar
- Kentik
- Rightnow ticketing tool
- Verizon Shield
- NETSCOUT Arbor
- ETMS
- Cloud WAF
- Network security
- DDoS mitigation
- Cloud security
- Incident response
- Performance tuning and optimisation
- Reporting and presentation
- Written and verbal communication
- Customer service excellence
- Network monitoring tools
- Web application security
- Networking protocols understanding
Languages
English
Advanced
C1
Telugu
Proficient
C2
Hindi
Upper Intermediate
B2
Tamil
Beginner
A1
Good Understanding
- Linux
- GitHub
- Jenkins
- Docker
- Kubernetes
- Ansible
- Microsoft Azure
Timeline
Network Engineer
Verizon
04.2024 - Current
Senior Emergency Response Team (ERT) Member
WAF
11.2022 - 03.2024
SOC Analyst
Cyient
09.2017 - 06.2022
Mechanical Engineering -
Sriprakash college of technology-JNTUK