Frank Sandoval
CTO & CoFounder at DirectDental
Menifee, California, United States
Summary
👤
Senior🎓
Top SchoolFrank Sandoval is a technical founder and CTO with nearly two decades of hands-on engineering and operator experience who built DirectDental from zero to acquisition and now supports post‑close integration at the acquiring public company. He combines deep full‑stack expertise—APIs, real‑time matching and scheduling, secure PII systems—and a proven capital‑efficient operator instinct honed by running a profitable consultancy for 17 years. Frank uniquely underwrites deals, integrates systems, and operates businesses across a buy‑and‑build portfolio strategy focused on SMB B2B services and skilled trades where modern systems and AI can expand margins. An active contributor to open source networking tooling, he’s implemented dynamic DNS enhancements for the well-known pfSense project, demonstrating practical back‑end and product sensibilities. Open to capital or founder partnerships, he prefers flexible structures that pair technical sweat equity with selective funding to accelerate compounding businesses.
9 years of coding experience
8 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at California State University San MarcosAssociate of Science (A.S.) CSIS, Associate of Science (A.S.) CSIS at Mt. San Jacinto CollegeComputer Software Engineering, Computer Software Engineering at California State University, Fullerton
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (13)
dynamic-ip10
pfsense10
firewall10
php10
api10
dns10
apidoc10
freebsd10
curl9
json8
graphical-user-interface7
human-interface7
user-interface7
Programming languages (9)
Github contributions (5)
pfsense/pfsense
Feb 2017 - May 2017
Main repository for pfSense
Role in this project:
Back-end Developer
Back-end DeveloperContributions:18 commits, 1 PR, 7 comments in 2 months
Contributions summary:Frank primarily contributed to the pfSense dynamic DNS functionality. They added support for Dreamhost dynamic DNS updates, implementing the necessary API calls for record management. Furthermore, the user refactored the code to include methods for looking up the current record and removing it before updating, and switched the API key usage from username to password fields. The user also added help text and controls to the UI.
netmikofirewall-rulesrouterospfsensefreebsd
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