Chad Parnin

Chad Parnin

I help engineering teams ship secure software.

I'm a Senior Cybersecurity Engineer based in the Tampa Bay area, specializing in application security, penetration testing, and AI-assisted development & security.

With 10+ years across the Intelligence Community and the private sector, I work alongside software engineers to secure the systems that matter, building practical, drama-free security programs that reduce risk without slowing delivery.

At TekStream, I build and scale AppSec programs, architecting CI/CD-integrated scanning across 1000+ repositories and 50+ teams. I also pentest source code and web applications, advise executives on tooling and risk, and create educational content. My testing workflows pair Claude with Burp and Kali.

I hold a Master's in Cybersecurity Technology, a B.S. in Computer Science from Indiana University, and certifications including GPEN, GCIH, CEH, Security+, and ITIL.

Off the clock you'll find me on the golf course, doing astrophotography, playing chess, cheering on the Tampa Bay Lightning, chasing national parks, or spending time with family.

Résumé

Projects

Open-source tools I've built.

AppSec Galaxy AI-powered security scanner (Semgrep, Gitleaks & Trivy) with cross-file attack-chain analysis and automatic code fixes, delivered via PR of course. 🙂 SAST Secrets SBOM AI Remediation Polaris Home-network security monitor that discovers every device, maps your network topology, and port-scans for risky exposure. No router login, no agents, no cloud. Network Security TypeScript React Local-first Onion Lens Passive OSINT tool that puts an AI correlation layer over dark-web search engines. Ask in plain English, get clustered findings with extracted entities and scam flags instead of a raw keyword dump. Metadata only, no Tor required. OSINT Threat Intel Python AI Analysis Clearskies Astrophotography alert bot that scores dozens of deep-sky targets against hourly weather, altitude, and moon interference, then pings my phone when tonight is worth setting up the telescope. Astrophotography Python Automation Push Alerts

Need a pentest or source code review?

I test source code, web apps, APIs, and platforms, with AI-assisted workflows that go deeper than a scanner. Every finding comes with clear evidence, a report your engineers can act on, and slides for your execs. Reach out and we'll figure out the best path.

LinkedIn

Images

Family, golf, friends, and a road trip through the national parks of Colorado, Utah, and Nevada.

Waterfront lunch with my parents Family day out at PopStroke Nevada stars near Area 51 Blue Lakes with Tanja Golf lesson on the course Dream Lake, Rocky Mountain National Park Blue Lakes, Colorado Alpine stream below snow-capped peaks Delicate Arch, Arches National Park Historic barn at Capitol Reef National Park Bryce Canyon hoodoos at sunset Hiking a slot trail in Bryce Canyon Pine forest canopy Chad in the Colorado high country Las Vegas skyline at night Golfing with friends