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Rishav Kumar

@rishavkumar9

Senior Security Engineer with 6+ years in Cloud, Network & Application Security. Expert in AWS, OCI, WAF, Palo Alto, F5, Cisco ISE & Zero Trust.

India

Message

What I'm looking for

I'm looking to lead cloud, network, and application security initiatives where I can strengthen SecOps, automate security controls, manage critical vulnerabilities, and advance Zero Trust and compliance across multi-cloud environments.

I am a Senior Security Engineer with 6+ years of experience in cloud, network, and application security across AWS, OCI, and on-premise environments. Currently with Oracle, I lead Sec-Ops initiatives covering cloud and application security, incident response, vulnerability management, access control, and critical zero-day remediation. I have strong hands-on expertise in OCI WAF, AWS WAF, F5 ASM/WAF, Palo Alto WAF, Cisco ISE, SIEM, IDS/IPS, and endpoint security. I have successfully mitigated credential stuffing and bot-driven attacks, reducing malicious traffic by 80%, while managing 400+ critical vulnerabilities monthly. My experience also includes Terraform, OPA, SAST/DAST, Zero Trust, and security automation using agentic AI workflows. I have worked extensively with ISO 27001, NIST, PCI DSS, GDPR, and PHI/PII protection requirements. I hold CCSK, CCNP Enterprise, CCNP SD-WAN, CCNP ENCOR, and CCNA certifications and bring strong leadership, troubleshooting, and security engineering capabilities.

Experience

Work history, roles, and key accomplishments

Current

Senior Security Engineer

Current

Oracle

Jun 2024 - Present (2 years 3 months)

Lead Sec-Ops for cloud and application security across OCI, AWS, and on-premise environments, managing incident response, vulnerability management, and access control. Strengthened security posture by integrating SAST/DAST into CI/CD, hardening images, and using agentic AI for alert triage.

AWS WAF Terraform SAST DAST CI CD Incident Response Vulnerability Management Zero Trust ISO 27001 NIST PCI DSS GDPR PHI

Priority Security Engineer

Citrix

Feb 2023 - Jun 2024 (1 year 4 months)

Managed NetScaler ADC, WAF, and VPN Gateway for global applications across APAC, EMEA & NA. Resolved high-priority escalations, optimized load balancing and SSL/TLS, implemented Rewrite/Responder policies, SAML/LDAP authentication, and reduced vulnerability exposure by 25%.

Escalation / Technical Consultant

Capgemini

Mar 2021 - Feb 2023 (1 year 11 months)

Served as an L2 Escalation Engineer troubleshooting Cisco UCS, Nexus, and virtualization platforms. Deployed HyperFlex, VMware ESXi, and RHEL in HA environments, performed RCA, resolved critical network issues, configured Nexus/UCS hardware, and reduced incident resolution time by 30% through automation and documentation.

Education

Degrees, certifications, and relevant coursework

Model Institute of Engineering and Technology

Bachelor of Engineering, Electronics and Communication Engineering

Bachelor of Engineering in Electronics and Communication Engineering from Model Institute of Engineering and Technology, Jammu, India, completed in 2020.