Guinness Book of World Records
Record for an online Rubiks Cube event.
Sambhu Rajendran
CISSP, Security +, Guinness World Record Holder
Aspiring Cloud Security and DevSecOps professional with a strong foundation in cloud architecture. Currently expanding my skills in secure cloud deployments, automation, and infrastructure as code. Passionate about building secure, scalable systems in the cloud, and actively learning through projects, labs, and Certifications
Things I've worked on
🔐 Secured Cloud Infrastructure & Monitored Threats:
Configured and optimized AWS GuardDuty to generate custom threat alerts and improve incident response times.
Analyzed endpoint activity using Carbon Black to detect and mitigate advanced threats.
Collaborated with developers to remediate SAST vulnerabilities and address issues from a bug bounty program.
Performed vulnerability scans using tools like Nessus to ensure systems remained patched and secure.
🚀 Cloud & DevOps:
Deployed the Cloud Resume Challenge using AWS S3, Lambda, DynamoDB, Route 53, and CloudFront, secured with HTTPS via ACM.
Applied IAM least privilege principles to manage access securely.
Tools: GitHub Actions, Amazon S3, CloudFront, Lambda, IAM, ACM
📊 Data Analysis & Automation:
Used SQL queries to analyze backend logs and resolve discrepancies, reducing repeat customer issues by 25%.
Automated server administration tasks with Python, Bash, and PowerShell, cutting down manual work and errors.
Migrated legacy systems to the cloud, increasing uptime and reliability by 99%.
🌐 Network Security & Performance Tuning:
Fine-tuned firewalls (Fortinet, Palo Alto, Cisco) and implemented access control policies to enhance perimeter defenses.
Diagnosed network issues by analyzing NetFlow traffic, packet captures, and syslogs — improving visibility and reducing bottlenecks.
My Certifications
Certified Information Systems Security Professional (CISSP)
CompTIA Security+
AWS Certified Solutions Architect - Associate
Cisco Certified Network Associate (Routing and Switching)
A Few Accomplishments
India Book and Asia Book of Record Holder
Record for Rubiks Cube on a Digital Platform event.
