SSSaif Sahriar
@saifsahriar
I am a penetration tester specializing in web, API, and network security.
IndiaWhat I'm looking for
I am a B.Tech CSE-AIML student passionate about offensive security and hands-on testing. I focus on identifying practical vulnerabilities and delivering actionable remediation.
As a Junior Penetration Tester Intern at Defronix Cyber Security Pvt Ltd, I assisted in web application and API security testing, network vulnerability assessments, SAST support, and produced PoC-backed reports. I regularly applied OWASP Top 10 methodologies and used tools such as Burp Suite, Nmap, Nessus, Metasploit, and Wireshark to validate findings.
I have led and contributed to projects including a blockchain wallet API pentest, an admin interface assessment, and a Tor-based anonymized port scanner; I also built a career guidance portal with LMS and AI chatbot features. I ranked in the top 7% on TryHackMe, reported PII exposure at Paytm responsibly, gained unauthenticated access to a ClickHouse instance at Setu.co via Shodan reconnaissance, and mentor newcomers as Cybersecurity Lead at The Anonymous Legion.
Experience
Work history, roles, and key accomplishments
Junior Penetration Tester Intern
Defronix Cyber Security Pvt Ltd
Jul 2025 - Aug 2025 (1 month)
Assisted in vulnerability assessments and penetration tests of web applications and REST APIs using OWASP Top 10 methodologies and produced actionable findings. Performed internal and external network scans, supported SAST/manual code review, and documented vulnerabilities with PoCs and remediation guidance.
Cybersecurity Lead
The Anonymous Legion
Jul 2025 - Aug 2025 (1 month)
Led a cybersecurity club team producing educational content and mentoring newcomers to start ethical hacking journeys. Coordinated team activities, managed contributors, and organized workshops to support outreach and training.
Education
Degrees, certifications, and relevant coursework
Techno Main Salt Lake, Kolkata
Bachelor of Technology, Computer Science and Engineering (AIML)
2022 -
Grade: 7.66 CGPA
Pursuing Bachelor of Technology in Computer Science and Engineering (AIML) at Techno Main Salt Lake, Kolkata with a CGPA of 7.66.
Narayana Schools, Andal
Class 12, Higher Secondary
Grade: 81%
Completed Class 12 at Narayana Schools, Andal in 2022 with 81% marks.
Mansur Habibullah Memorial School, Kolkata
Class 10, Secondary Education
Grade: 87%
Completed Class 10 at Mansur Habibullah Memorial School, Kolkata in 2020 with 87% marks.
Availability
Location
IndiaAuthorized to work in
Salary expectations
Job categories
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