Rahul Raina
Summary
A highly experienced IT professional with over 10 years of expertise, including 4+ years specializing in Network Security and IT Networking, and 6 years in Digital Media. Demonstrated proficiency in managing Network Operations Centre (NOC) and Security Operations Centre (SOC) functions. Skilled in deploying, configuring, and troubleshooting a wide range of network devices, security technologies, and protocols.
Overview
13
13
years of professional experience
Work History
DDoS and WAF Analyst (Cyber Security)
Bharti Airtel
05.2025 - Current
- Monitor WAF dashboards and alerts for malicious traffic.
- Analyse logs for OWASP Top 10 attacks (SQLi, XSS, CSRF, etc.)
- Tune WAF rules to reduce false positives and false negatives.
- Work with developers to whitelist legitimate traffic.
- Create and update custom rules based on attack patterns.
- Upgrade OS & hotfix of F5 & Arbor Devices for bug and vulnerability fix.
- 24
- 7 Security event monitoring, analysis, triage incident alerting.
- Collaborated with cross-functional teams to enhance threat intelligence and develop proactive security awareness programs.
- Analyse, Mitigate, troubleshoot, and generate reports of incidents via managing MO, Mitigation Templates, and setting up the Countermeasures to Mitigate DDoS attacks such as rate limiting, blocking IPs, and geo-filtering.
Senior Network Engineer
BRISA Technologies Pvt. Ltd.
12.2021 - 02.2025
- Monitor network devices and links using NMS tools.
- Respond to alerts related to routers, switches, firewalls, and links.
- Identify and troubleshoot basic network connectivity issues.
- Log incidents and service requests in ticketing tools.
- Follow SOPs for incident resolution and escalation.
- Escalate unresolved or critical issues to L2/L3 teams.
- Support LAN, WAN, and WLAN environments.
- (Client: Johnson Controls International PLC)
Network Engineer
In2IT Technologies Pvt. Ltd.
05.2018 - 12.2021
- Provided 24/7 operational support for broadband, Layer 2, voice, and radio network services across multiple client platforms.
- Configured and managed firewall policies, proactively monitoring and analyzing logs to identify and resolve network issues.
- Collaborated with NOC teams to troubleshoot and resolve ISP and OSP faults, ensuring uninterrupted service delivery.
- Coordinated with off-net teams to deliver services over third-party and partner networks outside the organization’s infrastructure.
- Supported configuration and troubleshooting of Layer 2 Metro and Internet services, improving network reliability.
- (Client: Liquid Telecom South Africa)
Senior Process Executive
Cognizant Technology Solutions
06.2015 - 04.2018
- Managed and optimized Google Ads campaigns across multiple platforms, including Search, Display Network, YouTube, and Shopping.
- Developed and refined campaign strategies, continuously optimizing ad groups, keywords, and targeting to achieve campaign goals.
- Maintained a focus on quality, achieving a 99.9% compliance rate for campaign performance and ad quality.
- Collaborated directly with Google clients to ensure the accuracy and success of ad campaigns through rigorous quality checks.
- (Client: Google)
Campaign Manager, Level 2
Cybage Software Pvt. Ltd.
10.2012 - 08.2014
- Managed full development life cycle of web projects, including needs assessment, design, coding, testing, and deployment, ensuring timely delivery.
- Applied in-depth technical expertise across development languages, applications, and databases to ensure seamless project execution and optimal performance.
- Delivered high-quality web solutions under tight deadlines, meeting or exceeding client expectations.
- (Client: Microsoft)
Education
B.Sc. I.T -
NIIT
Skills
- F5 WAF
- DDoS
- Routing and switching: TCP/IP, OSPF, BGP, EIGRP, VLAN, STP, HSRP
Disclaimer
I hereby declare that the information furnished above is true and correct to the best of my knowledge and belief.
Timeline
DDoS and WAF Analyst (Cyber Security)
Bharti Airtel
05.2025 - Current
Senior Network Engineer
BRISA Technologies Pvt. Ltd.
12.2021 - 02.2025
Network Engineer
In2IT Technologies Pvt. Ltd.
05.2018 - 12.2021
Senior Process Executive
Cognizant Technology Solutions
06.2015 - 04.2018
Campaign Manager, Level 2
Cybage Software Pvt. Ltd.
10.2012 - 08.2014
B.Sc. I.T -
NIIT