Available for opportunities
Penetration Tester & Cybersecurity Professional

Gonthina
Durga Shankar

>_ |

Cybersecurity professional with hands-on experience in penetration testing, vulnerability scanning, web application security, and Linux infrastructure hardening. Passionate about identifying threats before attackers do โ€” and building defenses that hold.

security_audit.sh โ€” bash
01 // About
Who I Am
0+
Year Experience
0
Certifications
0
Security Scripts

I'm a cybersecurity professional who spent a year at Atos | Syntel as an Associate Consultant performing vulnerability assessments, penetration testing, and Linux infrastructure security. My background spans web application security testing, malware analysis, network scanning using Nessus and Nmap, and security automation via Bash scripting. I've since deepened my expertise through intensive self-directed study โ€” earning certifications, building real security tools, and practicing offensive skills in hands-on lab environments. Currently preparing for CompTIA Security+ and ready to bring focused, practical security skills to a team that values them.

02 // Skills
Technical Arsenal
Pentest & Security Tools
NessusNmapBurp SuiteMicrosoft DefenderHyenaMicrosoft 365 Security
Security Testing
Vulnerability AssessmentPenetration TestingSQL InjectionDoS SimulationMalware AnalysisOSINT ReconSteganography
Scripting & Automation
Bash Shell ScriptingPython (Foundational)Cron JobsLog Analysis
Cloud & Infrastructure
AWS EC2 / S3 / IAMAzure (AZ-900)Linux RHEL / UbuntuJenkins CI/CDPerforce
Frameworks & Standards
OWASP Top 10NISTPTESISO 27001 (Awareness)
Linux Administration
User & Group MgmtFile PermissionsLog MonitoringPatch ManagementNetwork Hardening
03 // Experience
Work History
AUG 2022 โ€” JUL 2023
Associate Consultant โ€“ Security & Linux Infrastructure
Atos | Syntel Pvt Ltd ยท Chennai, Tamil Nadu
  • Performed vulnerability scanning using Nessus to identify system, network, and application-level security risks.
  • Conducted network scanning and host discovery using Nmap to map infrastructure and detect exposed services.
  • Executed web application security testing including SQL injection and DoS simulations.
  • Assisted in malware analysis and incident response for potential security breaches.
  • Monitored and hardened Linux server environments (RHEL, Ubuntu) โ€” file permissions, access control, privilege management.
  • Automated security and admin tasks using Bash shell scripting and Cron job scheduling.
  • Supported Microsoft 365 Security and documented security findings for compliance audits.
AUG 2023 โ€” PRESENT
Independent Security Research & Specialization
Self-Directed ยท Full-Time Skill Development
โšก Strategic Skill Investment
  • Dedicated full-time focus to advancing offensive security expertise โ€” a deliberate, structured investment in becoming a stronger specialist.
  • Pursuing CompTIA Security+ (SY0-701) โ€” covering threats, cryptography, network security, identity management, and risk management.
  • Built and published production-quality security automation scripts on GitHub โ€” system auditing, log analysis, port scanning.
  • Hands-on labs with AWS security services (EC2, S3, IAM) and applied OWASP Top 10 in real test environments.
  • Active on TryHackMe โ€” consistent practice in ethical hacking, CTF challenges, and real-world attack simulations.
04 // Projects
What I've Built
01 / OPEN SOURCE
โš™๏ธ
Security Automation Scripts
A collection of Bash scripts for Linux security auditing โ€” system info, failed login detection, file permission auditing, open port checking, and network analysis.
BashLinuxNmapLog Analysis
github.com/durga-shankar-cyber/security-scripts โ†’
02 / PROFESSIONAL
๐Ÿ”
Pentest & Exploitation Assessment
Full-cycle penetration testing โ€” OSINT recon, system enumeration via Hyena, controlled malware deployment, web app security testing (SQL injection, DoS), and steganography-based secure communication.
OSINTSQL InjectionDoSSteganography
Atos | Syntel ยท Confidential
03 / PROFESSIONAL
๐Ÿ›ก๏ธ
Linux Infrastructure Hardening
Monitored and hardened enterprise Linux servers โ€” access control, file permission management, patch management, vulnerability scanning using Nessus, and log monitoring for suspicious activity.
NessusRHELUbuntuHardening
Atos | Syntel ยท Confidential
04 / SELF-DIRECTED
โ˜๏ธ
AWS Cloud Security Practice
Hands-on labs with AWS security services โ€” IAM policy configuration, EC2 security groups, S3 bucket access controls, and cloud misconfiguration awareness. AZ-900 certified for Azure.
AWS IAMEC2S3Azure AZ-900
Self-Directed Learning
05 // Certifications
Credentials
โ˜๏ธ
Microsoft Azure Fundamentals
Microsoft ยท AZ-900
โœ” Completed
๐Ÿ”
Cyber Security Professional Master Program
Edureka
โœ” Completed
๐Ÿง
Linux Fundamentals
Edureka ยท Apr 2026
โœ” Completed
๐Ÿ›ก๏ธ
Cybersecurity Certification Course
Edureka
โœ” Completed
๐Ÿ“š
CompTIA Security+ Training
Edureka ยท SY0-701
โœ” Completed
๐ŸŽฏ
CompTIA Security+ Exam
SY0-701
โณ In Progress
06 // Contact
Get In Touch

I'm actively looking for cybersecurity roles โ€” penetration testing, vulnerability assessment, or security operations. If you're building a security-first team, let's talk.

Quick Profile

STATUSโ— Available Now
LOCATIONKakinada, AP, India
RELOCATIONโ— Open
ROLE TYPEFull-Time / Contract
FOCUSPenetration Testing
EXPERIENCE1+ Year