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hackThacker

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---

### 👤 Who I Am

I'm **Niraj Adhikari**  an offensive security researcher, cybersecurity trainer, and software architect. I break systems to understand how to defend them, teach others how to build security into everything they do, and architect scalable solutions across cloud and on-premise environments.

I actively publish on my **[blog](http://hackthacker.blogspot.com/)** covering ethical hacking, networking, Linux, system design, and cybersecurity roadmaps. I hold verified certifications on **[Credly](https://www.credly.com/users/niraj-adhikari.hackthacker/badges)** and train others on platforms like TryHackMe.

🌐 **[website](https://hackthacker.app/)**

📝 **[Latest Articles](https://hackthacker.medium.com/)**

###  Currently Working On

-  Architecting a **production-grade distributed system**  handling load balancing, horizontal scaling, fault tolerance, and zero-downtime deployments
-  Engineering a **custom AI system** on top of **OpenRouter API**  building LLM routing logic, managing model fallbacks, and shipping it as a production-ready AI pipeline
---

### 🚀 What I Do

| Area | Focus |
|---|---|
| 🔴 **Offensive Security** | Penetration testing, red teaming, bug bounty hunting, CTF — [Security Visual Animation →](https://visual-animation.vercel.app/) \| [Session System →](https://sessions-identifiers.vercel.app/) \| [API Service →](https://api-sandy-eta-15.vercel.app/) |
| 🛡️ **Cybersecurity Trainer** | Teaching ethical hacking, Linux security, networking & labs — [See Student Work →](https://github.com/shresthadilip/CyberSecurity) |
| 🏗️ **Software Architect** | System design, scalable architecture, API design patterns — [System Design Master Guide →](https://github.com/hackThacker/fuzzy-engine) |
| 🌐 **Networking** | Network architecture, protocols, practical labs, troubleshooting — [Network Practical →](https://github.com/hackThacker/network-practical) |
| 🟣 **Reverse Engineering** | Binary analysis, malware analysis, debugging  — [Malware Incident →](https://github.com/hackThacker/win-threat-analysis) \| [Android Reverse Engineering →](https://github.com/hackThacker/awesome-reverse-engineering)   |
| 🤖 **AI / ML & LLM Engineering** | AI Agents, LLMs, RAG, Predictive ML, CV, NLP — [ML & LLM System Design: 800 Case Studies →](https://github.com/hackThacker/awesome-ml-llm-case-studies) | 
| 🐧 **Linux** | Linux administration, hardening, scripting, security |
| ☁️ **Cloud Engineering** | Multi-cloud infrastructure: AWS · GCP · Azure · Linode · Heroku |

---

### 🛠️ Skills & Tools

**🔴 Offensive Security**

![Burp Suite](https://img.shields.io/badge/Burp%20Suite-0d1117?style=flat-square&logo=burp-suite&logoColor=58a6ff)
![Metasploit](https://img.shields.io/badge/Metasploit-0d1117?style=flat-square&logo=metasploit&logoColor=58a6ff)
![Nmap](https://img.shields.io/badge/Nmap-0d1117?style=flat-square&logo=nmap&logoColor=58a6ff)

**🌐 Networking**

![Wireshark](https://img.shields.io/badge/Wireshark-0d1117?style=flat-square&logo=wireshark&logoColor=58a6ff)
![Cisco](https://img.shields.io/badge/Cisco-0d1117?style=flat-square&logo=cisco&logoColor=58a6ff)
![Nmap](https://img.shields.io/badge/Nmap%20(Net%20Scan)-0d1117?style=flat-square&logo=nmap&logoColor=58a6ff)

**🐧 Linux**

![Kali Linux](https://img.shields.io/badge/Kali%20Linux-0d1117?style=flat-square&logo=kali-linux&logoColor=58a6ff)
![Ubuntu](https://img.shields.io/badge/Ubuntu-0d1117?style=flat-square&logo=ubuntu&logoColor=58a6ff)
![Bash](https://img.shields.io/badge/Bash%20Scripting-0d1117?style=flat-square&logo=gnu-bash&logoColor=58a6ff)

**☁️ Cloud**

![AWS](https://img.shields.io/badge/AWS-0d1117?style=flat-square&logo=amazonaws&logoColor=58a6ff)
![GCP](https://img.shields.io/badge/GCP-0d1117?style=flat-square&logo=googlecloud&logoColor=58a6ff)
![Azure](https://img.shields.io/badge/Azure-0d1117?style=flat-square&logo=microsoftazure&logoColor=58a6ff)

**🏗️ System Design & Architecture**

![Docker](https://img.shields.io/badge/Docker-0d1117?style=flat-square&logo=docker&logoColor=58a6ff)
![Kubernetes](https://img.shields.io/badge/Kubernetes-0d1117?style=flat-square&logo=kubernetes&logoColor=58a6ff)
![Nginx](https://img.shields.io/badge/Nginx-0d1117?style=flat-square&logo=nginx&logoColor=58a6ff)

**💻 Software & Development**

![Python](https://img.shields.io/badge/Python-0d1117?style=flat-square&logo=python&logoColor=58a6ff)
![Laravel](https://img.shields.io/badge/Laravel-0d1117?style=flat-square&logo=laravel&logoColor=58a6ff)
![Next.js](https://img.shields.io/badge/Next.js-0d1117?style=flat-square&logo=nextdotjs&logoColor=58a6ff)

---

### 📦 Featured Projects

<table>
  <tr>
    <td width="50%">
      <h3>🐛 <a href="https://github.com/hackThacker/Bug-Bounty-Tools">Bug-Bounty-Tools</a></h3>
      <p>Your Comprehensive Collection of Bug Bounty Tools for Effective Cybersecurity Testing</p>
      <p>
        <img src="https://img.shields.io/github/stars/hackThacker/Bug-Bounty-Tools?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/forks/hackThacker/Bug-Bounty-Tools?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/languages/top/hackThacker/Bug-Bounty-Tools?style=flat-square&color=58a6ff&labelColor=0d1117"/>
      </p>
    </td>
    <td width="50%">
      <h3>🔧 <a href="https://github.com/hackThacker/advtools">advtools</a></h3>
      <p>Advanced security tools collection for offensive security operations and automation</p>
      <p>
        <img src="https://img.shields.io/github/stars/hackThacker/advtools?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/forks/hackThacker/advtools?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/languages/top/hackThacker/advtools?style=flat-square&color=58a6ff&labelColor=0d1117"/>
      </p>
    </td>
  </tr>
  <tr>
    <td width="50%">
      <h3>⚙️ <a href="https://github.com/hackThacker/fuzzy-engine">fuzzy-engine</a></h3>
      <p>System Design Master Guide — a structured production-focused resource for learning how large scale systems are designed, built and optimized</p>
      <p>
        <img src="https://img.shields.io/github/stars/hackThacker/fuzzy-engine?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/forks/hackThacker/fuzzy-engine?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/languages/top/hackThacker/fuzzy-engine?style=flat-square&color=58a6ff&labelColor=0d1117"/>
      </p>
    </td>
    <td width="50%">
      <h3>🌐 <a href="https://github.com/hackThacker/network-practical">network-practical</a></h3>
      <p>Hands-on network architecture, protocols, and practical labs for real-world troubleshooting and security</p>
      <p>
        <img src="https://img.shields.io/github/stars/hackThacker/network-practical?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/forks/hackThacker/network-practical?style=flat-square&color=58a6ff&labelColor=0d1117&logo=github&logoColor=white"/>
        <img src="https://img.shields.io/github/languages/top/hackThacker/network-practical?style=flat-square&color=58a6ff&labelColor=0d1117"/>
      </p>
    </td>
  </tr>
</table>

---

### 📊 GitHub Stats

---

### 🏅 Certifications & Badges

[![TryHackMe](https://tryhackme-badges.s3.amazonaws.com/hackniraj099.png)](https://tryhackme.com/p/hackniraj099)

---

### ✍️ Latest Blog Posts

> **Cybersecurity Blog** — [hackthacker.blogspot.com](http://hackthacker.blogspot.com/)

- 🔐 [Using Kali Linux — Access and Compromise any system](https://hackthacker.blogspot.com/2022/05/using-kali-linux-learn-how-to-access.html)
- 🗺️ [Cybersecurity Roadmap — Beginner to Professional Career](https://hackthacker.blogspot.com/2022/03/roadmap-of-cybersecurity-and-it.html)
- 🏷️ [Ethical Hacking](https://hackthacker.blogspot.com/search/label/CEH%20Ethical%20Hacking?&max-results=5) · [Networking](https://hackthacker.blogspot.com/search/label/Programming?&max-results=5) · [Blockchain](https://hackthacker.blogspot.com/search/label/Blockchain%20technology?&max-results=5)

---

### 🤝 Connect

---

<p align="center">
  <img src="https://komarev.com/ghpvc/?username=hackThacker&color=58a6ff&style=flat-square&label=Profile+Views"/>
  <br/><br/>
  <i>"Everyone should read the Bhagavad Gita at least once in their life 🙏 — Hare Krishna ❤️"</i>
</p>

<p align="center">
  <sub>Made with ❤️ by <a href="https://github.com/hackThacker">hackthacker</a></sub>
</p>

hackThacker

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