Cybersecurity and Network Engineer with hands-on experience in enterprise security operations, threat detection, and large-scale network infrastructure deployments. Experienced in managing perimeter security using Palo Alto Firewalls and Cloudflare, endpoint detection and response (EDR/XDR) through CrowdStrike and Tanium, device compliance with Microsoft Intune, and Privileged Access Management (PAM) using Senhasegura. Also possesses a foundational understanding of Vulnerability Assessment and Penetration Testing (VAPT), including identifying potential security vulnerabilities. Supported by solid networking expertise in device staging, implementation, and multi-vendor routing and switching across government and enterprise institutions.
Hello, I'm
ADELWIN NL
Network Engineer and Aspiring Cybersecurity Specialist - still growing, but driven by curiosity and a strong passion to learn. Focused on TCP/IP, switching, routing, and basic penetration testing.
Technical Arsenal
Featured Work
Automated WhatsApp commerce bot engineered with Node.js and Baileys. Features catalog browsing, dynamic QRIS payments, order management, stock management, and automatic digital credential delivery with owner confirmation.
Built a responsive Pomodoro Timer web application with focus sessions, short and long breaks, audio alerts, and intuitive controls to boost study and work productivity.
Developed a responsive personal Link in Bio landing page (similar to Linktree) with clean aesthetics, smooth UI, video background support, and centralized links to social profiles and projects.
Career Timeline
- Network Security: Palo Alto Firewall, Cloudflare
- Endpoint Security: CrowdStrike, Tanium, Microsoft Intune
- Privileged Access Management: Senhasegura (PAM)
- Infrastructure Monitoring & Security Operations
- Contributed to managing and growing the IT Enthusiast Community (ITEC)
- Wrote and published educational tech-related articles on the community blog: it-enthusiast-community | blog
- Designed visual content for social media (Instagram) to increase community engagement and visibility
- Delivered and contributed to educational materials related to IT topics
- Supported community operations, including content planning and activity coordination
- Invited as guest trainer by a lecturer who is a partner of CV. Bestpath Network
- Delivered a full-day networking session to university students
- Topics covered: IP & MAC Addressing, Switching, and Routing
- Performed staging and configuration of Firewall, Core Switch & Distribution Switches (DSW 1–5)
- Configured Wireless LAN Controller (WLC), added VLANs, trunk, and SSID (WPA2PSK + Captive Portal)
- Set up LACP on Core Switch & Firewall, NAT policy, DHCP, and remote SSH access
- Deployed and configured Access Points, NMS installation, and Create Captive Portal
- Performed connectivity & DHCP testing to ensure all users could access the internet post-deployment
- Assisted in network migration from existing to new devices and completed LLD documentation
- Co-delivered HPE Aruba Networking Campus Access Professional (HPE7-A01) training
- Covered advanced topics: VXLAN, GBP, Building Wired Infrastructure & Monitoring
- Assisted participants in hands-on lab sessions and technical Q&A
- Verified device readiness for Segment Routing IPv6 (SRv6) implementation
- Developed IPv6 and SRv6 Locator formulas for network planning
- Performed topology mapping for every node currently in use
- Mapped existing service names including L3VPN and L2VPN
- Co-delivered Aruba Certified Associate Switching training for Indosat engineers
- Covered VLANs, Spanning-Tree Protocol, Link Aggregation, VRRP & OSPFv2
- Supported hands-on routing & switching lab exercises
- Co-delivered Aruba Certified Associate Campus Access training for Indosat engineers
- Covered AOS-CX Switching, Network Redundancy, VSF & WLAN Fundamentals
- Guided participants through practical lab configurations
- Helped with documentation during network device configuration and installation (router & switch)
- Checked network topology and supported device staging
- Joined on-site implementation and learned directly from senior engineers
- Monitored network traffic to ensure smooth data flow and connection after deployment
- Basic computer networking Bootcamp trainer at Best-Path Academy
- Aruba Assistant Trainer for networking courses
- Supported internal projects including traffic monitoring and troubleshooting
- Configured Cisco and Mikrotik devices in CV Best-Path Solutions
- Conducted online bootcamps with Introduction to CyberSecurity material
- Created a cashier application web program
- Configured a virtual IP phone using Asterisk
- Configured proxy devices (hotspot creation, site blocking, etc.)
- Developed soft skills and professional communication
- Learned and practiced digital marketing directly
- Learned Linux Operating System fundamentals
- Learned web programming (HTML, CSS, jQuery)
- Completed Cisco Networking Essentials Training
Credentials & Certs
Latest Writings
An introduction to the fundamentals of cybersecurity, explaining key concepts, common digital threats, and practical steps to build a strong security foundation in the modern digital era.
Learn how to identify and exploit SQLi vulnerabilities using manual methods and SQLmap, featuring a practical walkthrough on the testphp.vulnweb.com lab.
Basic discussion of computer networks - covering fundamental concepts needed to understand CCNA 200-301 material from the ground up.
Explains essential Linux commands such as pwd, cd, ls, rm, and others - a practical guide for beginners getting started with Linux.
A guide to understanding file permissions in Linux covering read, write, and execute access, as well as ownership management using chmod and chown commands.
