Devendra Sai
Cyber Security and Ethical Hacking Specialist
About
Enthusiastic and detail-oriented Computer Science graduate with foundational knowledge in Cyber Security and Artificial Intelligence/Machine Learning. Familiar with concepts like network security, ethical hacking, threat analysis, Python programming, and machine learning algorithms. Completed hands-on projects involving data classification, malware detection using ML, and basic penetration testing. Strong understanding of cyber attack types, firewalls, and AI-based anomaly detection. Eager to apply technical skills to secure systems and develop intelligent solutions in a dynamic team environment.
Skills & Expertise (46)
Work Experience
Research Intern
First Quadrant Labs
Present - Present
Designed a VPN architecture to provide secure remote access for internal users over public networks. Implemented OpenVPN/IPSec-based VPN solutions on Linux servers for end-to-end encrypted communication. Configured site-to-site and remote-access VPNs for secure connectivity between branch networks and clients. Set up authentication mechanisms using certificates and pre-shared keys to ensure only authorized users could access the network. Managed firewall rules and NAT to support VPN traffic while preventing unauthorized access. Optimized VPN performance by selecting appropriate encryption algorithms (AES-256, SHA-2) and tuning MTU sizes. Monitored VPN traffic and performance using tools like Wireshark, NetFlow, and pfSense dashboards. Documented the entire VPN setup with diagrams, security configurations, and usage instructions for users and administrators.
Education
Bachelor of Technology in Automobile Engineering - Vignan University
2021 - 2024 · Afghanistan
