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BacteriaJun/README.md

Hi, I'm Junius Tang 👋

Security Research · Data · 3D Pipeline Engineering

I build practical software at the intersection of cybersecurity, data analytics, and 3D animation, with a focus on systems engineering, automation, and cross-platform integration.

My work ranges from vulnerability research and security tooling to Blender add-on development, motion-capture pipelines, and applied AI.

🚀 Featured Project

Stars Release CI License

A production-oriented Blender add-on for retargeting BVH motion-capture data to common humanoid skeleton conventions.

It provides an integrated workflow for:

  • BVH source mapping
  • constraint-based motion retargeting
  • animation baking
  • Mixamo-compatible rigs
  • Unreal Engine 5 humanoid workflows
  • VRM humanoid avatars
  • FBX export
  • motion cleanup and correction

Tech: Python · Blender Python API · Motion Capture · Rigging · Animation Pipelines

➡️ View Project ➡️ Download Latest Release


🔐 Cybersecurity

My work focuses on vulnerability research, offensive security, reverse engineering, and practical security engineering. I enjoy exploring how systems work, identifying security weaknesses, and solving complex technical challenges.

Selected Achievements

  • 🥈 National Runner-Up — 2024 Chunqiu Cup Cybersecurity League (Individual CTF, 2nd Place Overall).
  • 🌍 UIUCTF 2026 — Ranked 71st out of 548 teams worldwide (Top 13%), personally earning 1,229 of 1,398 points (87.9%) across 12 solved challenges.
  • 🛡️ CERT-EU Hall of Fame (2025) — Recognized for contributions to vulnerability disclosure.
  • 🏅 Four CTF Gold Finger Awards — Crypto, Web, Reverse, and Misc, alongside the Cybersecurity Practical Elite distinction.
  • 🔐 Vulnerability Research — Reported 10+ high-risk vulnerabilities to CNVD.
  • 🏅 5th Great Wall Cup Cybersecurity Competition — Security Guardian recognition.
  • 📜 Huawei HCIP-Security — Professional security certification.

Areas

CTF · Vulnerability Research · Web Security · Reverse Engineering · Cryptography · Linux · Network Security

🎬 3D & Animation

I work across 3D animation, technical art, and production pipeline development, combining creative storytelling with software engineering.

I'm currently developing an animated adaptation of my original fiction, handling both creative production and technical workflows.

Selected Experience

  • 🎨 3D Production — VRoid, Blender, character creation, and animation.
  • 🦴 Motion Capture — DiMocap workflows, skeletal retargeting, and FBX / VRM integration.
  • 🛠️ Blender Add-on Development — Custom tools for motion-capture skeleton mapping and animation retargeting.
  • 🌪️ VFX & Compositing — Houdini FX, Nuke, and After Effects.
  • 🎬 Creative Production — Screenwriting, directing, voice acting, and sound design.
  • ⚙️ Pipeline Automation — Exploring agent-assisted motion-capture processing and workflow automation.

Recognition

  • 🥈 2025 ICAD International Contemporary Youth Art Design Competition — Silver Award

🧰 Technical Focus

Languages

Python C++

Security

Linux Cybersecurity CTF

Development

Git Docker GitHub Actions

3D

Blender Motion Capture

🛠 What I Like Building

I enjoy building tools and systems that connect different technical domains, particularly cybersecurity, AI, automation, and 3D production.

Although these fields may seem unrelated, I often find myself approaching them in similar ways: understanding how systems work, solving integration problems, and making complex workflows more efficient.

Cybersecurity ──────┐
                    │
AI / Data ──────────┼──► Systems Engineering
                    │             │
3D & Animation ─────┘             ▼
                         Automation / Tooling
                                  │
                                  ▼
                         Practical Software

Areas of Interest

  • System Design — Building reliable systems from multiple components.
  • Automation — Reducing repetitive work through scripts, tools, and agents.
  • Tool Development — Creating custom solutions when existing tools fall short.
  • Interoperability — Connecting different software, APIs, and file formats.
  • Reverse Engineering & Debugging — Understanding how systems behave internally.
  • Reproducibility — Making technical workflows consistent, testable, and maintainable.

I prefer understanding and building things myself, especially when a problem requires combining knowledge from different fields.

🌱 Open Source

I use GitHub to build, share, and maintain my own projects, as well as contribute improvements to other open-source repositories.

My contributions have included:

  • Documentation & READMEs — Improving technical documentation, clarity, and project accessibility.
  • Developer Tooling — Contributing tools and workflow improvements.
  • Usability & Community — Improving the developer experience and supporting open-source resources.

I'm particularly interested in independent engineering and long-term project development — building practical tools, solving real problems, and maintaining software beyond its initial implementation.

For me, open source is not just about contributing code. It's also about learning from existing systems, sharing useful work, and making software easier for others to understand and use.

📈 GitHub

GitHub stats Languages

📌 Current Interests

  • 🔐 Cybersecurity — Vulnerability research, CTF, and security tooling.
  • 🛠️ Systems Engineering — Automation, developer tools, and software integration.
  • 🎬 3D & Animation — Blender add-ons, motion capture, and production pipelines.
  • 🤖 AI & Data — Applied AI, data analytics, and intelligent workflow automation.
  • 🌱 Applied Research — Exploring ideas and turning them into practical implementations.

🤝 Connect

I'm interested in exchanging ideas and collaborating on projects involving:

  • Cybersecurity and vulnerability research
  • Blender tooling and animation pipelines
  • Motion capture and workflow automation
  • AI, data, and software engineering
  • Open-source development

Feel free to explore my repositories, open an issue, or start a discussion on a relevant project.


Build useful things. Understand how systems work.

Pinned Loading

  1. BVH-Motion-Retargeter BVH-Motion-Retargeter Public

    Blender add-on for retargeting BVH motion to Mixamo, Unreal Engine 5, and VRM rigs with production-ready FBX export.

    Python 74 2

  2. SparseEcho SparseEcho Public

    Hardware-neutral reconstruction of sparse time-varying modulated scatterer fields using SFPTI

    Python 22

  3. Environment-Derived-Key Environment-Derived-Key Public

    Environment-derived key concept algorithm and reference implementation; software validated, long-term engineering validation pending.

    Python 1

  4. WCM-Core WCM-Core Public

    Reference control system for offline-configured autonomous endpoints, with C17 control, fixed-function RTL, and mission tooling.

    Python 1