👋 Hi, I’m Denis

Security‑minded builder & tinkerer

I beta‑test apps, explore new tech to find issues responsibly, and I’m building a clean, mobile‑friendly Security+ study app to help folks learn by doing.

See Projects Security+ App

About me

I enjoy testing and breaking things (safely!) to make them stronger. I share practical security knowledge and build small tools that are easy to use and easy to trust.

Credentials

Certifications

  • CompTIA Security+ (SY0‑701)
  • ⚙️ Add yours here…

Experience

  • System & Network Administration
  • Security tooling & hardening
  • Monitoring, IDS/IPS, logging

Education

  • B.S. Cybersecurity — WGU
  • Ongoing: Cloud & AI/ML

Things I tinker with

Beta testing

Try early releases, reproduce issues, write crisp repro steps.

Web & API security

Headers, auth, rate‑limiting, logging, PBQs, and secure defaults.

Cloud & Dev tooling

Firebase, Cloudflare, CI/CD, IaC, and lightweight observability.

Beta testing & early security reports

I focus on responsible disclosure: minimal impact, fast signal, clear write‑ups. If your app needs a careful set of eyes, reach out.

Security+ Study App

Interactive PBQs, micro‑quizzes, and actionable explanations mapped to SY0‑701.

Open the App ↗ (public beta)

Main projects

PBQ Builder

Generate hands‑on practice scenarios with grading & hints.

Preview

Screenshots & demo links coming soon.

Header Hardener

Tiny tool to propose strict, copy‑pastable security headers.

Preview

Example output & before/after tests.

Mini Bug Write‑ups

Short case studies on responsibly reported issues.

Preview

Index of write‑ups and takeaways.

Find me online

Links

Contact

Best way to reach me is via LinkedIn or GitHub issues for project feedback.

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