Who is Ratnadeep Bose?

Ratnadeep Bose is a Cybersecurity & Cloud Practitioner from Kolkata, India, with expertise in SOC operations, cloud security, and DevSecOps. He holds 17+ professional certifications including CEH, CRTOM, Log Analysis, AWS Cloud Security, SOC Level 1, Jr Penetration Tester, Pre Security, and Web Fundamentals from TryHackMe.

What certifications does Ratnadeep Bose have?

Ratnadeep Bose has 17 certifications including: Certified Ethical Hacker (CEH), Certified Red Team Operations Management (CRTOM), Foundations of Log Analysis for Cyber Defense, Security Engineer Certificate, Jr Penetration Tester, Web Fundamentals, DevSecOps Certificate, SOC Level 1 Certificate, AWS Cloud Security, AWS Compute, AWS Introduction to Cloud, SQL Injection Attacks – Code Red, Python Programming Fundamentals, Python Essentials 1 & 2, Pre Security, and Fundamental Cloud & DevOps.

Where is Ratnadeep Bose located?

Ratnadeep Bose is based in Kolkata, West Bengal, India, and is available for remote work and consulting opportunities globally.

How can I contact Ratnadeep Bose?

You can contact Ratnadeep Bose via email at ratnadeepbusiness321@gmail.com or by phone at +91 7001005520. You can also connect with him on LinkedIn, GitHub, TryHackMe, or Credly.

Ratnadeep Bose

Professional Summary

Dual-focused cybersecurity professional specializing in both SOC operations and offensive security testing. Active Bug Bounty Hunter and Security Researcher with expertise spanning security monitoring, incident detection, and vulnerability assessment. Proven track record in SOC environments conducting advanced log analysis, incident triage, and security monitoring using industry-leading SIEM platforms including Splunk and Elastic. Simultaneously discovering high-impact security flaws through responsible disclosure programs at Zepto, Zerodha, Yatra, Paytm, and other major platforms.

Technical expertise covers the full security spectrum - from defensive SOC operations (SIEM platforms, threat detection, incident response, MITRE ATT&CK framework) to offensive security (web penetration testing, API security, mobile app reverse engineering, and automated reconnaissance). Skilled in identifying sophisticated attack patterns, correlating security events, and implementing proactive defense mechanisms while also uncovering critical vulnerabilities including exposed API keys, sensitive data leakage, and access control weaknesses.

Strong foundation in secure coding practices, cloud security (AWS), and DevSecOps with exposure to AI-assisted security research. Exceptional communication skills honed through responsible disclosure coordination, enabling effective collaboration with cross-functional teams and clear articulation of security posture to stakeholders. Committed to continuous learning, maintaining proficiency in emerging attack vectors, and protecting organizations from both sides of the cybersecurity battlefield.

Core Skills

Security Operations Centre

Splunk Elastic Security Microsoft Sentinel Zeek Suricata Wazuh osquery Velociraptor TheHive Cortex

Cloud Security & DevSecOps

Prowler Scout Suite Checkov Terraform Docker Trivy Kubescape kube-bench tfsec Terrascan

Web VAPT

Burp Suite Pro OWASP ZAP Nmap Metasploit sqlmap ffuf Gobuster Nikto Nuclei WhatWeb Subfinder amass assetfinder dnsrecon httpx dnsx httprobe katana gau waybackurls unfurl arjun wpscan masscan hydra john hashcat hashid ncrack ncat openssl curl tcpdump arpspoof ngrep proxychains msfconsole searchsploit impacket crackmapexec linpeas go rustc python3 cookiemonster sourcemapper

Mobile Application Security & Android Analysis

JADX Apktool MobSF Frida Objection ADB drozer Android Emulator Android Studio JD-GUI

Threat Intelligence

VirusTotal Maltego MISP OpenCTI Censys GreyNoise Any.Run urlscan.io AbuseIPDB OTX ThreatFox OpenPhish

Experience

July 2026 - Present

Information Security Intern

Digi Samurai · Internship | Rajarhat, West Bengal, India · On-site

Supporting the Information Security team in day-to-day security operations and client engagements.
Assisting with vulnerability assessment, security research, risk analysis, and security documentation.
Contributing to operational delivery while gaining hands-on experience with cybersecurity processes and industry best practices.
Collaborating with cross-functional teams under the guidance of experienced security professionals.
Learning and applying security concepts related to incident response, compliance, and information security management.

Core focus areas: Vulnerability Assessment and Penetration Testing (VAPT), Security Operations Center (SOC), Governance, Risk Management, and Compliance (GRC)

Jan 2026 - Present

Bug Bounty Hunter

Com Olho · Freelance | Remote

Conducting independent security research and vulnerability assessments across web applications and APIs, with a focus on identifying high-impact security flaws aligned with responsible disclosure practices.
Specialized in reconnaissance, attack surface mapping, and vulnerability discovery including subdomain takeovers, misconfigurations, and access control weaknesses.
Actively reporting validated findings to organizations through coordinated disclosure programs, ensuring real-world impact and security improvement.
Leveraging tools and frameworks such as Burp Suite, Nmap, Subfinder, Amass, and custom Python automation scripts to streamline testing workflows and improve detection efficiency.

Core focus areas: Web Application Security (OWASP Top 10), Threat Detection & Analysis, OSINT & Reconnaissance Automation, Cloud & Infrastructure Misconfigurations, Linux-based Security Testing Environments

Nov 2025 – Dec 2025

App Developer Intern | AZMTH

azmth · Internship | Kolkata, West Bengal, India · Hybrid

App Development using Flutter: Designing, developing, and optimizing mobile applications aligned with Azmth's AI call management ecosystem. Focused on performance, scalability, and intuitive user experience.
Integration of AI-driven Features: Collaborating with backend and AI teams to integrate voice assistant capabilities, real-time analytics, and smart routing features into mobile products.
Security Implementation: Ensuring end-to-end application security through code reviews, data encryption, and secure authentication methods to protect user and communication data.
API & CRM Sync Development: Building modules that sync app data with platforms like Google Calendar, HubSpot, and Salesforce for seamless workflow automation.
Testing & Optimization: Conducting functional and performance testing to enhance speed, reliability, and scalability of the mobile applications.
Cross-functional Collaboration: Working closely with product managers, designers, and AI engineers to ensure consistent delivery of high-quality app solutions.
Continuous Learning & Innovation: Exploring the intersection of Flutter development, AI communication systems, and cybersecurity to contribute to Azmth's evolving product roadmap.

Focus Areas: Flutter, Dart, Mobile App Development, AI Integration

Achievements

6 Security Achievements

Zepto Security Hall of Fame

Discovered and responsibly disclosed multiple security vulnerabilities during a security assessment. The findings were validated by the Zepto Security Team and successfully remediated. Recognized in Zepto's Security Hall of Fame for contributing to their security posture. This achievement reflects expertise in security research, vulnerability identification, and responsible disclosure coordination.

Verify

Certificate of Appreciation from Zerodha

Received Certificate of Appreciation from Zerodha Broking Limited for identifying a Severity P2 vulnerability in their Bug Bounty Program. First formal recognition in the bug bounty ecosystem.

View Certificate Verify

Appreciation from Yatra

Received validation and acknowledgment from Yatra Infosec Team for responsible disclosure of a security finding through their bug bounty program. The reported issue was accepted, validated, and classified as Medium Risk. Recognized for contributing to Yatra's platform security.

Pending Verify

Certificate of Appreciation from Paytm

Discovered and responsibly disclosed a critical production vulnerability in Paytm's Android application during a bug bounty assessment. The security flaw involved a sensitive data exposure issue that was validated by the Paytm Security Team, prioritized for high-impact remediation, and successfully fixed. This achievement reflects expertise in mobile application security, static code analysis, reverse engineering, and responsible disclosure coordination.

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Security Finding - Linqapp.com

Discovered and responsibly disclosed a security vulnerability in Linq during a security assessment. The issue was validated by the Linq Security Team and is currently under review. This achievement reflects expertise in security research and responsible disclosure coordination.

Under Review Pending

Security Finding - Juspay

Discovered and responsibly disclosed a security vulnerability in Juspay during a security assessment. The issue was validated by the Juspay Security Team and is currently under review. This achievement reflects expertise in security research and responsible disclosure coordination.

Under Review Pending

Licenses & Certifications

20 Certifications & Licenses

Certified Ethical Hacker

Cisco

Issued Feb 2026

Credential ID: Available

Ratnadeep Bose

Professional Summary

Core Skills

Security Operations Centre

Cloud Security & DevSecOps

Web VAPT

Mobile Application Security & Android Analysis

Threat Intelligence

Experience

Information Security Intern

Bug Bounty Hunter

App Developer Intern | AZMTH

Achievements

Zepto Security Hall of Fame

Certificate of Appreciation from Zerodha

Appreciation from Yatra

Certificate of Appreciation from Paytm

Security Finding - Linqapp.com

Security Finding - Juspay

Licenses & Certifications

Certified Ethical Hacker

Advanced Endpoint Investigations

SOC Level 2 Certificate

AI Security

SOC Level 1 Certificate

Security Engineer Certificate

Jr Penetration Tester

DevSecOps Certificate

Web Fundamentals

Pre Security

AWS Cloud Security

SQL Injection Attacks – Code Red

AWS Compute

AWS Introduction to Cloud

Python Programming Fundamentals

Python Essentials 2

Python Essentials 1

Fundamental Cloud & DevOps

Certified Red Team Operations Management (CRTOM)

Foundations of Log Analysis for Cyber Defense

Education

University of North Bengal

Saint Paul's School, Jalpaiguri