Busani Rajkumar

About Busani Rajkumar

Cybersecurity Engineer with 4+ years of experience in Network Security, Web Application Security, and Cloud Security, specializing in Akamai Web Application Firewall (Kona Site Defender) and Zscaler platforms (ZIA, ZPA, ZDX). I have hands-on experience in designing and implementing Zero Trust security architecture to protect enterprise applications and enable secure access for users across global environments.My expertise includes securing web applications and APIs against OWASP Top 10 threats, bot attacks, and DDoS attacks, along with implementing Zscaler Internet Access and Zscaler Private Access for secure internet and private application access. I am experienced in security policy configuration, SSL inspection, traffic analysis, WAF tuning, and incident troubleshooting in large-scale production environments.I regularly collaborate with SOC, DevOps, cloud, and infrastructure teams to ensure secure application onboarding, efficient incident response, and continuous improvement of the organization’s security posture. I am passionate about cloud-delivered security, Zero Trust architecture, and protecting modern applications from evolving cyber threats.

Experience

1. Senior Application Security Specialist

   Infosys

   Feb 2019 — Present · Hyderabad, IN

   Cyber Security professional with 10+ years of IT experience, specializing in Application Security and Cloud-based security solutions. Currently working as an Akamai WAF Security Specialist (L3), with 4+ years of hands-on experience protecting enterprise-scale web and API applications in production environments.My core expertise lies in Akamai Web Application Firewall (APP and API Security), where I handle L3-level responsibilities including advanced policy tuning, false positive reduction, OWASP Top 10 protection, bot attack mitigation, and detailed security log analysis. I work closely with application, DevOps, and SOC teams to ensure strong security controls with zero or minimal business impact.In addition, I bring 2+ years of experience in Zscaler and Symantec (Bluecoat) Cloud Proxy solutions, supporting secure internet access, policy enforcement, traffic inspection, and troubleshooting at L2 specialist level.I also have a strong foundation in network and perimeter security, with 5+ years of experience across Cisco routing & switching, Palo Alto, and Check Point firewalls, which helps me understand application traffic behavior and security controls end-to-end.Key Focus Areas:Akamai Web Application Firewall (L3 Support & Tuning)Web & API Security (OWASP Top 10)Bot Management & Automation Attack MitigationZscaler & Symantec Cloud Proxy SecuritySecurity Log Analysis & Incident ResponseNetwork & Firewall Security (Cisco, Palo Alto, Check Point)I am open to challenging roles in product-based or service-based organizations, where I can contribute deep Akamai WAF expertise, practical security engineering skills, and real-world production experience.

Education

• Osmania University

  Master of Computer Applications - MCA, Computer Science

  2010 — 2013