Md Didarul Alam Alif
DidarAlif
Professional Experience
A timeline of my professional career, internships, and security research engagements.
Assistant System EngineerActive Role
AmberIT
Dhaka, Bangladesh
Design, deploy, and maintain enterprise network infrastructure. Leading network security operations, VAPT assessments, and infrastructure monitoring across client environments.
Key Responsibilities
- Design, configure, and troubleshoot complex network architectures, including routers, switches, firewalls, Wi-Fi routers, and access points for internal and endpoint devices.
- Provide expert-level Layer 2 and Layer 3 VPN configuration, troubleshooting, and remote support.
- Perform remote monitoring, fault isolation, and network diagnostics using enterprise-grade monitoring systems.
- Monitor and manage network devices using Zabbix and related NMS tools.
- Work with Cisco, MikroTik, Juniper, Fortinet, WinBox, and ABX systems.
- Handle incident response, technical escalation, and service restoration for network infrastructure.
Technologies & Scope
AI/IT Intern
Estoma Inc.
Tokyo, Japan (METI Govt. Internship)
Worked on backend architecture and full-stack logic components, while conducting web application and API penetration testing in production environments.
Key Responsibilities
- Worked with Ruby on Rails, Ruby, Vue.js, Vite, and Docker in production environments.
- Designed backend architectures including data models, API routing, and scalable logic components.
- Conducted Vulnerability Assessment and Penetration Testing (VAPT) on web applications and APIs.
Technologies & Scope
Cybersecurity Specialist Intern
DeshLink Ltd.
Dhaka, Bangladesh
Executed network security audits, vulnerability assessments, and delivered comprehensive documentation on network hardening.
Key Responsibilities
- Performed penetration testing, network security audits, and comprehensive security assessments.
- Identified and documented security vulnerabilities with risk-based prioritization.
- Delivered structured security hardening reports with actionable remediation recommendations.
Technologies & Scope
Cybersecurity Intern
Senselearner Technologies Pvt. Ltd.
Remote
Conducted VAPT on enterprise web applications, threat intelligence mapping, and cyber awareness documentation.
Key Responsibilities
- Executed VAPT activities for enterprise web applications and infrastructure.
- Wrote cyber awareness guides and comprehensive security documentation.
- Supported threat intelligence operations and continuous vulnerability monitoring initiatives.
Technologies & Scope
Notable Event Network Engineering Projects
ReconScience VAPT Platform
2025Engineered an automated VAPT platform with Next.js and FastAPI, integrating Nuclei for real-time CVE and vulnerability scanning with live SSE status streaming.
Multi-Tenant SaaS Penetration Test
2025Conducted full-scope authenticated and unauthenticated VAPT testing aligned with OWASP WSTG 4.2 and API Top 10, uncovering 22 findings.
ICBC Expo by CoAB
2026Network infrastructure deployment and management for the ICBC Expo event.
3rd DRMC National Islamic Cultural Festival
2026End-to-end network setup and event connectivity management.
Business Fest Bangladesh 2026
2026Large-scale event networking and security infrastructure deployment.