Network & Security · Rajshahi, BD
NETWORK SECURITY ENGINEER
ISP INFRA PYTHON AUTOMATION API REVERSE ENG SECURITY

4+ years designing & securing ISP networks across Bangladesh. Expert in MikroTik, pfSense, Cisco IOS, firewall architecture, and building automation tools that slash operational overhead.

EXPERTISE YEARS
4+
ISP & operations
NETWORK UPTIME SLA
99%
avg across managed nodes
AUTOMATION SCRIPTS
14+
production pipelines
01 / PROFILE

Background & Focus

I'm Md. Firoz, a network security engineer passionate about high-performance ISP infrastructure and intelligent automation. I manage routing, firewall policies, and VPN architectures while writing Python scripts that automate bandwidth shaping, PPPoE provisioning, and real-time anomaly detection.

I use packet diagnostics (Wireshark, tcpdump) and API analysis tools with custom proxy workflows — turning traffic insights into robust automation tools.

Currently pursuing CCNA & CompTIA Network+ and actively building open-source network monitoring solutions.

Firoz_toolkit.py
# network security engineer config
class NetworkSecurityEngineer:
  def __init__(self):
    self.stack = ["MikroTik", "pfSense", "Cisco"]
    self.tools = ["Wireshark", "API Reverse Eng"]
  def automate(self):
    return "zero-touch provisioning"
MikroTik RouterOS
Firewall, queues, BGP, PPPoE management
Python 3 + Async
netmiko, aiohttp, parallel API scraping
Linux / FreeBSD
pfSense, iptables, routing, cron automation
Traffic Forensics
Wireshark filters, PCAP analysis, SSL inspection
02 / SKILLSET

Core Competencies

Networking
ISP Infrastructure
PPPoE & Bandwidth Management
MikroTik RouterOS
Traffic Analysis
VPN & Firewall Concepts
Network Monitoring
Routing & Segmentation
Infrastructure Troubleshooting
Automation
Python Automation
API Automation
Async & Parallel Requests
Push Notification Systems
Webhooks & Event Workflows
Provisioning Automation
Authentication Automation
Backend/System Integration
Network Insights
Router Hardening
Firewall Logic
JWT & Token Analysis
API Awareness
SSL/TLS Inspection
Exposure Awareness
Traffic Analysis Concepts
Network Research Mindset
Troubleshooting
Network Fault Analysis
Router Log Investigation
Performance Bottleneck Detection
Crash Log Debugging
Authentication Failure Tracing
Root Cause Analysis
Cross-System Debugging
Real-Time Problem Solving
Protocol Analysis
API Traffic Analysis
Mobile Traffic Analysis
Request Replay Workflows
Hidden Endpoint Discovery
Authentication Flow Analysis
Proxy Workflow Understanding
Client-Server Mapping
Traffic-to-Automation Translation
Engineering Strengths
Infrastructure Thinking
Systems Integration
Automation Mindset
Rapid Technical Learning
Pattern Recognition
Observability Thinking
Real-World Deployment Focus
Experimental Problem Solving
Tools & Platforms
MikroTik RouterOS Wireshark API Analysis Toolkit Proxy Automation Linux Toolkit Mobile Linux Termux Python Cisco IOS pfSense
03 / WORK

Live Deployments

01 / ISP DASHMonitor
ANAT — Live Network Monitor

Real-time MikroTik bandwidth aggregator using RouterOS API + asyncio. Graphs per-user throughput, anomaly alerts, and automated QoE reporting.

PythonMikroTik APIWebSocket
02 / NETWORKAnalysis
API Traffic Analysis Pipeline

Proxy workflow and analysis tools to observe encrypted mobile traffic, map API endpoints, and generate Python request blueprints automatically.

Traffic AnalysisWiresharkREST
03 / AUTOMATIONOps
PPPoE Provisioning Engine

Bulk user creation, bandwidth profiles, expiry rotation on MikroTik & FreeRADIUS. Cut provisioning from 15 min to 25 seconds per user.

PythonRADIUSCLI
04 / FULL-STACKPlatform
Web Push Notification Hub

VAPID-based push platform with service workers, subscription store, and broadcast targeting — deployed for local news network.

Node.jsService WorkersPush API
04 / CONNECT

Let's Collaborate

Open for network roles & freelance

ISP automation, firewall audits, Python scripting, or network analysis — reach out anytime.

Get in touch