Security Engineer · CISO Command Center
Handle: Solidx74 · Just trying to do better
BSc CSE at CUET — building at the intersection of cybersecurity, AI, and decentralized systems. Turning complex threat landscapes into automated, scalable defenses.
Chief Information Security Officer @ W3D
Active Deployments
Filterable bento grid spanning security pipelines, AI agents, ML models, and Web3 infrastructure.
Real-time ML engine with log parsing, feature extraction, Isolation Forest & One-Class SVM. Reduces MTTD by ~40%.
Tactical Python toolkit: password auditor, port scanner, DNS lookup, JWT inspector, hex dumper, Windows event log parser.
120+ challenge writeups with custom exploit scripts, reverse-engineering tools, and payload documentation.
Secure timed exam platform with encrypted session management and anti-cheating controls.
Full-stack AI career platform analyzing skill gaps and generating ATS-optimized LaTeX resumes from job descriptions.
Autonomous AI agent synthesizing RSS news streams across Tech and Blockchain ecosystems via Telegram.
Python intelligence bot tracking operational automation job markers via Telegram.
Word game bot with O(1) set-based dictionary loops and Render Express keep-alive cycles.
Blockchain-based academic credential verification infrastructure for Bangladesh ecosystems.
PyTorch character-level RNN name classifier built from scratch with custom training vectors.
TensorFlow CNN for advanced feature map extractions and visual classification tasks.
ML engine utilizing telecom data patterns and Random Forest modeling for churn classification.
CoinGecko API connector parsing global market histories into automated database pipelines.
Interactive compensation survey model profiling global data engineering roles with rich drill-down visuals.
Critical Broken Access Control remediation — enforced 2FA, dictionary attack prevention, auth patch deployed on-chain.
Detection Stack Matrix
Team: CUET Cryptic Knights
Rank: #938 Global · Score: 7,200 pts
Solved: 35 challenges — Crypto, Forensics, Web, RE
- 🟢 Google — Cybersecurity Professional
- 🔵 IBM — Data Science Professional
- 🟡 Meta — Frontend Developer Professional
- 🟣 DeepLearning.AI — ML Specialization
- ▸ Detection pipelines & SIEM architecture
- ▸ LLM security & ML threat detection
- ▸ Cloud-native controls & hardening
- ▸ Smart contract auditing & DeFi modeling
Smart Contract Security Matrix
Complete security governance for W3D ecosystems — multi-signature command paths, risk evaluations, server directory configurations, and operational security policy across multi-chain infrastructure.
Strategic player acquisition metrics review. Optimized conversion paths and smart contract parameters under a $1,000 launch budget. On-chain behavioral analytics for cohort segmentation.
Authorization flaw isolated in the patient-to-provider credential registry. Missing identity matching filters permitted cross-entitled account data interception — patched with strict owner validation.
require(records[_recordId].owner == msg.sender, "Errors: Auth Failed");
records[_recordId].authorizedProviders[_doctor] = true;
emit AccessGranted(_recordId, _doctor);
}
| Vector | Mitigation | Status |
|---|---|---|
| Reentrancy Attacks | Checks-Effects-Interactions | [ OK ] |
| Integer Overflow | Solidity v0.8.0 Math | [ OK ] |
| Gas Optimization | Uint storage optimization | [ WARN ] |
| Timestamp Dependence | Block Number Offset | [ OK ] |
| Access Controls | OpenZeppelin Ownable | [ OK ] |