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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 covering ethical hacking, networking, Linux, system design, and cybersecurity roadmaps. I hold verified certifications on Credly and train others on platforms like TryHackMe.
🌐 website
- 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
| Area | Focus |
|---|---|
| 🔴 Offensive Security | Penetration testing, red teaming, bug bounty hunting, CTF — Security Visual Animation → | Session System → | API Service → |
| 🛡️ Cybersecurity Trainer | Teaching ethical hacking, Linux security, networking & labs — See Student Work → |
| 🏗️ Software Architect | System design, scalable architecture, API design patterns — System Design Master Guide → |
| 🌐 Networking | Network architecture, protocols, practical labs, troubleshooting — Network Practical → |
| 🟣 Reverse Engineering | Binary analysis, malware analysis, debugging — Malware Incident → | Android Reverse Engineering → |
| 🤖 AI / ML & LLM Engineering | AI Agents, LLMs, RAG, Predictive ML, CV, NLP — ML & LLM System Design: 800 Case Studies → |
| 🐧 Linux | Linux administration, hardening, scripting, security |
| ☁️ Cloud Engineering | Multi-cloud infrastructure: AWS · GCP · Azure · Linode · Heroku |
🔴 Offensive Security
🌐 Networking
🐧 Linux
☁️ Cloud
🏗️ System Design & Architecture
💻 Software & Development
|
Your Comprehensive Collection of Bug Bounty Tools for Effective Cybersecurity Testing
|
🔧 advtoolsAdvanced security tools collection for offensive security operations and automation
|
⚙️ fuzzy-engineSystem Design Master Guide — a structured production-focused resource for learning how large scale systems are designed, built and optimized
|
Hands-on network architecture, protocols, and practical labs for real-world troubleshooting and security
|
Cybersecurity Blog — hackthacker.blogspot.com
- 🔐 Using Kali Linux — Access and Compromise any system
- 🗺️ Cybersecurity Roadmap — Beginner to Professional Career
- 🏷️ Ethical Hacking · Networking · Blockchain
"Everyone should read the Bhagavad Gita at least once in their life 🙏 — Hare Krishna ❤️"
Made with ❤️ by hackthacker
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