LE DINH HUNG

NETWORK ENGINEERING · SYSTEM ADMIN

Open to Internship Opportunities

NETWORK ENGINEERING · SYSTEM ADMIN · IT INFRASTRUCTURE

LE DINH
HUNG

Network Engineering StudentSystem / Network AdminOpen to SOC & Security

I design and deploy enterprise network infrastructures, specializing in centralized AAA authentication, secure captive portals, and firewall routing policies for robust access control.

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View Projects View Resume Download CV ↓GitHub ↗

AWS/AAA

Cloud & Auth Systems

24/7

Access Control

100%

Hands-on Labs

PROFILE // 001ACTIVE

HUFLIT • HCMC

CURRENT FOCUS

ENTERPRISE NETWORKING & PERIMETER SECURITY

FEATURED PROJECTS

Infrastructures I have designed, secured, and deployed.

Practical work across enterprise routing & switching, firewall policies, captive portals, and centralized AAA authentication.

PROJECT 01

RADIUS Server with WiFi Marketing & Captive Portal

Centralized AAA architecture using FreeRADIUS, MySQL, and captive portals for user authentication, bandwidth control, and WiFi marketing.

STATUS: Deployed / Verified

NETWORK ARCHITECTURE PIPELINETraffic & Routing Data Flow

USER ACCESSCaptive Portal

AUTHENTICATIONRADIUS Server

DATABASEMySQL/MariaDB

ENFORCEMENTMikroTik / pfSense

TRAFFIC CONTROLQoS & VLANs

LOGGINGAccounting Data

WHAT I BUILT & CONFIGURED

Centralized AAA Architecture

Deployed FreeRADIUS backend with MySQL/MariaDB for unified authentication, user group management, and policy control across network access points.

WiFi Marketing & Captive Portal

Designed interactive captive portal landing page displaying promotional banners and collecting user logins before granting internet access.

Bandwidth & Access Control

Implemented QoS bandwidth limits (download/upload speed), session timeouts, and voucher-based access via RADIUS reply attributes.

Network Security & Accounting

Enforced VLAN segmentation between guest marketing and corporate subnets; logged real-time accounting data for audit trails.

WATCH DEMO

▶ Watch Video Demo ↗

NETWORKING TOOLS

FreeRADIUSWiFi MarketingCaptive PortalMySQLMikroTik / pfSenseVLANQoSLinux

PROJECT 02

Secure Cloud Photo Sharing Website

Developed a secure photo sharing SPA utilizing ReactJS, JWT authentication, and CloudFront Signed URLs, fully containerized and deployed on AWS EC2.

STATUS: Deployed / Verified

ARCHITECTURE PIPELINEData Flow & Security Checkpoints

CLIENT REQUESTReact SPA

REVERSE PROXYNginx Gateway

APPLICATION COREFastAPI / Docker

EDGE CDNCloudFront OAC

STORAGE VAULTPrivate S3 Bucket

AUTH & INTEGRITYRSA-2048 / TTL

WHAT I BUILT & CONFIGURED

Web SPA & API Gateway

Developed the React UI and established interactions with the FastAPI backend via a secure Nginx Reverse Proxy (:80).

JWT Auth & Authorization

Managed JWT Access Token lifecycle in the browser, attaching tokens to Authorization headers to protect user resources.

CloudFront Signed URLs

Integrated secure image rendering using RSA digitally signed links that self-destruct after a 60-second TTL.

Containerization & Deploy

Packaged the Frontend using Docker & Nginx, configured bridge networks in Docker Compose, and assisted AWS EC2 deployment.

PROJECT DEMO

▶ Watch Video Demo ↗

CLOUD & SEC TOOLS

ReactJSDockerNginxAWS CloudFrontJWTRESTful API

NETWORK ENGINEERING STACK

Technology Stack Across My Projects

Core protocols, simulation platforms, firewall appliances, and automation scripts used in network projects.

NET

Routing & Switching

OSPF • VLAN (802.1Q) • STP / RSTP • VRRP/HSRP • Static Routing

SEC

Firewall & VPN

pfSense / MikroTik • IPsec VPN • WireGuard • NAT/PAT • ACLs

OPS

Simulation & Ops

Packet Tracer • Wireshark • Zabbix / PRTG • Bash/Python Scripting

AAA

Auth & Identity

FreeRADIUS • Captive Portal • Active Directory • Linux / MySQL

CLD

Cloud & DevSecOps

AWS EC2/S3 • CloudFront OAC • Docker • FastAPI • Nginx

RESUME PREVIEW

Focused on becoming a capable Network & Infrastructure engineer.

Cybersecurity student at HUFLIT with hands-on expertise in network architecture, routing & switching, firewall deployment, and enterprise AAA authentication systems.

View Full Resume Download CV

EDUCATION

Bachelor of Cybersecurity

HUFLIT • Sep 2023 – Present

Undergraduate

DIRECTION

Network Engineering / Administration

Intern / Fresher opportunity

HCMC

CORE WORK

Enterprise Network Infrastructure

Authentication • Routing • Firewall • Captive Portal

RADIUS

PLATFORM

Server & Database Infrastructure

Linux (Ubuntu) • MySQL • FreeRADIUS

Linux Auth

ENGINEERING JOURNEY

A deliberate path through building.

Each year adds another layer: fundamentals, enterprise routing, infrastructure services, and cloud architecture.

2023

2024

2025

2026

FOUNDATION

Started Cyber Security

HUFLIT • Networking & systems fundamentals

ROUTING & SWITCHING

VLAN & Packet Tracer

Subnetting • VLANs • Routing • Wireshark

AAA & INFRASTRUCTURE

pfSense & FreeRADIUS

Firewall • AAA Auth • Captive Portal

CURRENT FOCUS

Cloud Architecture

AWS CloudFront/S3/EC2 • Docker • Nginx

CONTACT

Let's Connect

I'm open to Network Engineering Intern, Network Administrator, and System & Network Infrastructure opportunities. I am also highly enthusiastic about exploring roles in SOC (Security Operations Center) and broader cybersecurity domains.

Email Me GitHub Download CV

AVAILABLE FOR OPPORTUNITIES

dinhhungle96@gmail.com