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Debarshi Das

Hacker | Engineer

Mailapex · LinkedIn · Github

Achievements

Warner Bros Discovery — Critical RCE bounty

TikTok — Business logic vulnerability disclosure

Government of India (NCIIPC) — Critical infrastructure security acknowledgement

Certifications

CREST Practitioner Security Analyst (CPSA)2025

Experience

Founding Engineer · HacktronAIApr 2026 – Present
  • Redesigned the repository analysis pipeline with census-driven structural classification and high-precision path inference eliminating context starvation in downstream agents while reducing runtime by an order of magnitude on large repositories.
  • Collaborated in improving call-graph building pipeline that directly influenced downstream quality and coverage of vulnerability findings.
  • Contributed to autonomous blackbox DAST architecture supporting authenticated scanning, reachability validation, exploit chaining, and environment-dependent vulnerability confirmation.
  • Architected and implemented dynamic vulnerability validation for code reviews that supported custom environment builds on-demand to remain tech-stack agnostic and multi-agent system to carry out true validation and exploitation over theoretical metrics.
  • Improved multi-agent validation precision across judge pipelines by reducing false-positive propagation through structured context enrichment.
Security Product Engineer · SecurityReviewAI (we45)Jan 2025 – Apr 2026
  • Core architect of Orchestron v2 (O2), an autonomous pentest orchestrator spanning reverse engineering, API testing, and authenticated web-application scanning.
  • Implemented persistent agent memory enabling multi-step vulnerability chaining and threat-scenario reasoning across attack surfaces.
  • Built MCP servers integrating Claude and OpenAI SDK workflows for tool-augmented execution.
  • Reduced per-review LLM cost by 88% via Langfuse trace-level observability and workflow optimization.
  • Developed SecurityReview-Kit enabling inline developer threat modeling during code generation workflows.
  • Automated DevSecOps scanning pipelines adopted org-wide, reducing vulnerability backlog by 90%.
  • Performed security architecture reviews for multi-tenant Kubernetes ML inference systems (PyTorch, Ray Serve).
  • Audited legacy C/C++ enterprise codebases uncovering memory-safety and privilege-escalation vulnerabilities.
  • Designed libAFL fuzzing harnesses discovering parser corruption and deserialization flaws.
  • Reverse engineered closed-source binaries using IDA Pro and Ghidra to reproduce exploit chains.
  • Technical advisor for global HackerOne triage operations improving classification accuracy and turnaround efficiency.

Technical Skills

Languages — Python, Rust, C, C++, Java, Assembly (x86_64 / Armv8)

Agentic Systems — Claude Agent SDK, OpenAI SDK, LangChain, LangGraph, MCP architectures

Backend — FastAPI, Pydantic, APScheduler, Temporal

Program Analysis — IDA Pro, Ghidra, Binary Ninja, AFL++, libFuzzer, Frida

Infra — Docker, Kubernetes, GCP, GitHub Actions, PostgreSQL

Projects

Awesome OffSec Claude

  • Curated reusable offensive-security agent skills and prompt schemas for reconnaissance, vulnerability discovery, and exploitation workflows.

WordPress Plugin SAST Automation

  • Automated security analysis across top plugins using Semgrep + CodeQL with SARIF reporting pipelines.

Education

Techno Main Salt Lake — Bachelor's in Computer Application2021 – 2024