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29rdx/README.md

Rupraj Datta

Backend Software Engineer & Cybersecurity Specialist
High-Concurrency Systems • Application Security (AppSec) • Distributed Infrastructure
Bennett University — Greater Noida, India

GitHub LinkedIn Email Status

⚡ Engineering Impact: Problem → Solution → Proof

Project / Ecosystem Problem Addressed Engineering Solution Empirical Proof & Validation
🛡️ Backend Security Sentinel
Python FastAPI DevSecOps		 OWASP API Top 10 risks (BOLA, SSRF cloud metadata leaks, JWT key confusion) evade surface-level linters. Built an automated AST & entropy-driven vulnerability scanner with Shannon entropy secret extraction and automated auth-header fuzzing. Passing
Zero false-positive auth tests
🛡️ Sentinel DPI Engine
C++17 CMake PCAP DPI		 Kernel-space packet processing causes high packet-drop rates under wire-rate throughput. Architected a user-space C++17 packet dissector with lock-free ring buffers, 802.1Q VLAN parsing, JA3 TLS fingerprinter, and DNS covert entropy checks. Passing
Deterministic CTest pass
🛡️ Aegis Mesh Pay
Java 27 Spring Boot Crypto		 Financial transactions in zero-connectivity / offline environments suffer from double-spending risks. Implemented an offline payment gateway with RSA-2048 + AES-GCM signed vouchers, BLE binary mesh framing, and Bloom filter revocation lists. Passing
All tests green in 4.2s
🐍 pallets/click #3914
Python CLI Core PSF		 CLI runtime error hints silently omitted auto_envvar_prefix when required options were missing. Surgically patched Option.get_error_hint to resolve context prefixes when show_envvar=True; added positive & negative test coverage. Passing
PR Compare Package
🐍 calibrain/shelfmark #1632
Python Systems Streaming		 Large debrid streaming downloads triggered out-of-memory (OOM) fatal crashes on constrained servers. Re-engineered memory buffers to disk-backed SpooledTemporaryFile streaming pipelines with safe cancellation disposal. Merged
Merged into upstream master
🛰️ Team Nakshatra-X
TypeScript Three.js GIS		 Sub-surface manganese exploration lacked real-time spectral telemetry processing for field mining teams. Directed engineering for MOIL Limited (SIH 2026), building automated ESA Sentinel-2 band-ratio pipelines and interactive 3D Earth telemetry. Qualified
Team Lead & Architect

🌐 Verified Upstream Contributions

Repository Pull Request Stack Status Date
🐍 calibrain/shelfmark Spool large debrid downloads to disk 🐍 Python 🟣 Merged Nov 2026
🐍 AaronCreor/PyFuncAI Add JSON metadata output to cache list 🐍 Python 🟣 Merged Nov 2026
🐍 nikhilrai-tech/Nigrani Add ratio unit for fractional metrics 🐍 Python 🟣 Merged Nov 2026
firstcontributions/first-contributions Add Rupraj Datta to Contributors Multi-Stack 🟣 Merged Nov 2026
OWASP/CheatSheetSeries docs(xss): normalize quotes and apostrophe in WAF bypass strings (#2792) JavaScript 🟣 Merged Nov 2026

🛠️ Core Technical Competencies

  • Languages: Python (3.9 - 3.14), C++17/20, Java (17 / 27), Go, SQL, Bash
  • Backend & Systems: Deep Packet Inspection (DPI), High-Concurrency APIs, Lock-Free Data Structures, Streaming Telemetry, Microservices
  • Security & Cryptography: OWASP API Top 10, Zero-Trust Architecture, RSA-2048 / AES-GCM, Merkle Proofs, YARA Rule Authoring, Exploit Autopsies
  • Tooling & Infrastructure: Linux / POSIX APIs, Git (Worktrees), Docker, GitHub Actions CI/CD, CMake, Maven, Pytest

📬 Contact & Connect

Pinned Loading

  1. cve-analysis-vault cve-analysis-vault Public

    🛡️ Root-Cause Vulnerability Analyses, AST Dissections & Reproducible Test Harnesses for Critical CVEs

    Python 1

  2. sentinel-dpi-engine sentinel-dpi-engine Public

    🛡️ High-Throughput Multi-Threaded Deep Packet Inspection (DPI) & Threat Detection Engine in C++17

    C++ 1

  3. shelfmark shelfmark Public

    Forked from calibrain/shelfmark

    Python 1

  4. 29rdx 29rdx Public

    ⚡ Executive Developer Profile & Systems Engineering Portfolio

    1