Open to opportunities

MD SEFAT AHMED

@mdsefatahmed

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Cybersecurity officer specializing in SOC operations, VAPT, and threat hunting.

Bangladesh

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What I'm looking for

I’m looking for a role where I can combine SOC operations with VAPT, red teaming, and threat hunting—building SIEM/XDR detections, automating investigations, and continuously improving security defenses in a high-impact security team.

I’m a cybersecurity professional with less than six years of experience across SOC operations, vulnerability assessment, and penetration testing for various companies and clients. I balance offensive and defensive security work, with a strong focus on practical detection, investigation, and measurable risk reduction.

In my current role as a Cyber Security Officer at Republic of Bangladesh, I handle social media investigation & profiling, vulnerability assessment & penetration testing, malware analysis and reverse engineering, cyber threat analysis, digital forensics, and phishing attack work (simulation & research). I also support dark web monitoring and operations, along with technical support for intelligence operations and related duties.

Previously, I’ve worked as a Cybersecurity Engineer and Lead Cybersecurity Engineer, where I built and strengthened monitoring environments and alerting pipelines. I’ve integrated Wazuh into SOC setups, supported multi-tenant SOC architecture, contributed to endpoint and log source management, and enhanced investigation support for DFIR workflows using tools like Velociraptor and IRIS.

I’m especially drawn to Open Source Intelligence (OSINT), Red Teaming, and Threat Hunting. I use MITRE ATT&CK mapping, IoC tracking, and extended detection approaches (SIEM/XDR) to find weaknesses early, refine detection rules to reduce false positives, and support teams with actionable security assessment & reporting.

Experience

Work history, roles, and key accomplishments

Current

Cyber Security Officer

Current

Republic of Bangladesh

Aug 2025 - Present (10 months)

Conduct ongoing security investigations including social media profiling, OSINT-led threat analysis, and phishing/simulation research. Perform vulnerability assessment and penetration testing, malware analysis, dark web monitoring, and support digital forensics and incident response activities.

SOC Operations OSINT Vulnerability Assessment Penetration Testing Malware Analysis Dark Web Monitoring Social Engineering Digital Forensics Threat Hunting

Cybersecurity Engineer

AI MSP 365 Sdn. Bhd.

Oct 2025 - Dec 2025 (2 months)

Led cybersecurity research and development and delivered security operations through testing and threat simulation. Built and supported OpenXDR/SIEM/SOAR detection engineering, participated in penetration testing, and contributed to security solution design, deployment, troubleshooting, and compliance reporting.

Security Operations Threat Simulation Penetration Testing OpenXDR SIEM SOAR Detection Engineering Solution Design

Lead Cybersecurity Engineer

Simply ICT

Jul 2025 - Oct 2025 (3 months)

Integrated Wazuh into a SOC and deployed an open-source, multi-tenant SOC architecture with centralized endpoint and log source management. Developed threat intelligence integration, alerting/monitoring, DFIR investigation support, SOAR automation, and multi-server dashboarding.

Wazuh MISP ELK Graylog Grafana Prometheus Velociraptor Threat Intelligence

Cloud Security Engineer (L2/L3)

Meghna Cloud

Jan 2025 - Jun 2025 (5 months)

Enhanced security monitoring using behavioral and anomaly-based detection and strengthened detection and response capabilities across SIEM/EDR/XDR/SOAR and forensics tooling. Developed automation for threat hunting and incident response, deployed deception technologies, refined detection rules to reduce false positives, and supported red/blue team collaboration.

SIEM EDR XDR SOAR Threat Hunting Anomaly Detection Incident Response Detection Engineering

Jr. SOC Analyst

Meghna Cloud

Dec 2023 - Jan 2025 (1 year 1 month)

Supported security incident response and threat intelligence analysis while contributing to system hardening, configuration, and patch management. Worked on open-source security configuration and cybersecurity solution development to improve monitoring and defenses.

Incident Response Threat Intelligence Analysis Security Monitoring System Hardening Patch Management Open Source Security

Junior Penetration Tester

Primacy Infotech Pvt. Ltd.

Apr 2023 - Dec 2023 (8 months)

Performed website and Android application security testing to identify vulnerabilities and provide actionable recommendations. Collaborated with teams to address security issues and support remediation efforts.

Security Testing Android Testing Vulnerability Assessment Penetration Testing Issue Remediation

Social Media Coordinator

Adarsha Publication

Jan 2023 - Mar 2023 (2 months)

Performed data analysis and supported database creation and visualization using statistical and machine-learning techniques. Collaborated with teams using OKR methodology to drive data-informed decisions.

Data Analysis Data Visualization Statistical Methods Machine Learning OKRs Collaboration