Hector Carrillo Email & Phone Number

Somerville, MA, US

• Key architect and developer of foundational data structures, collaborating directly with the CTO and CEO as the first employee.
• Pioneered the development of critical features, enabling the onboarding of 20 enterprise customers representing 500+ users, thereby laying thefoundation to unlock future revenue.
• Decreased feature development time by creating developer tools, enabling faster and more efficient feature rollouts.
• Streamlined issue detection in user transactions by creating proactive admin tools, cutting down the time to identify progress‑related bugs from2 days to nearly instant.

Cambridge, Massachusetts, United States

• Accelerated the technical ramp‑up of Fylo Health’s CTO by establishing strong full‑stack fundamentals and providing mentorship in the MEVNstack, thereby enhancing the startup’s internal capabilities in developing.
• Instrumental in developing the MVP which directly contributed to securing vital funding and attracting a dedicated user base.

• Led the intern team in a complete website overhaul; involved rapidly learning and teaching Rails to the cohort.
• Managed the project from conception to execution, emphasizing a collaborative and learning‑first environment.

• Expanded the product’s offering by developing an automated tool to extract questions from textbooks.