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CTF achievements and professional certificates.
A collected record of capture-the-flag participation, placements, technical training, and cybersecurity credentials issued to Shahed Shahrier.
Professional
Professional certificates.
Training, credential, and registration certificates with the names shown on the certificates.
TCM Security
Linux 100: Fundamentals
Date: 05/03/2025. Certificate ID: cert.nghyxbfz.
Certificate of Completion
Red Team Leaders
Certified Cybersecurity Educator Professional
Issued: January 13, 2026. Verification ID: f0894d9af2db9b94.
CCEP
Red Team Leaders
Certified Red Team Operations Management
Issued: December 25, 2025. Verification ID: e094a3ba95c28163.
CRTOM
Red Team Leaders
Certified C++ Practitioner Professional
Issued: January 13, 2026. Verification ID: eb5881ceadc75edb.
CCPP
ICT Division, Bangladesh Computer Council, EDGE
BEAR Summit and National Semiconductor Symposium 2025
Registration completed for the event held on 16 and 17 July 2025 at National Science and Technology Complex, Dhaka.
Certificate of RegistrationCapture The Flag
CTF certificates.
Competition certificates with the exact event names shown on the certificates.
Bangladesh Computer Society
BCS ICT FEST - 2025
CTF category participation. Issue date: 15 February 2025. Certificate number: BCS-ICT-FEST-2025126.
Certificate of Participation
World Wide Flags
World Wide CTF 2025
Jeopardy-style hacking competition held from 26 July to 28 July 2025.
Certificate of Participation
Hack The Box, OtterSec, OffSec, ZSecurity
scriptCTF 2025
Team Really Annoying Bots(RAB). Finished 66/1767.
Certificate of Participation
dYSI
BUP CSE TECH CARNIVAL 2025
Successful participation in the Capture The Flag competition.
Certificate
Daffodil International University Cyber Security Club
DIU_CYBERCON 2025
Team Name: Bup Rab. Date: October 25, 2025.
Certificate of Participation
CyberEDU, Bitdefender, HiveHack
Null CTF 2025
Team Really Annoying Bots(RAB). Secured 275th place.
Certificate of Excellence
H7CTF
H7CTF 2025
Online Capture The Flag competition conducted on 18 and 19 October 2025.
Certificate of Participation
BDSec CTF 2025
BDSec CTF 2025
Team Really Annoying Bots(RAB). Final standing: 45/783.
Certificate of Participation
Team BlitzHack
BlitzCTF
Actively participated in BlitzCTF, a CTF held by Team BlitzHack from 5 July 2025.
Certificate of Participation
DownUnderCTF
DownUnderCTF6
Team Really Annoying Bots(RAB). Team ranking: 188/1688. Total points: 2168/10689.
Certificate of Participation