David Simionescu I graduated high school a year early to focus on scaling my startup full-time. 14 years old (2022): Started working on personal projects as open-source software, taught myself web development 15 years old (2023): Got an internship at Romanian Software SRL over the summer, then got hired as a junior software developer for the next 8 months; started building skillbright.org, an interactive web development course platform 16 years old (2024): Started Peer Programming, a nonprofit that offers free 1:1 programming mentorship through vetted high school instructors. Applied to college with no safeties, got rejected from every Ivy League 😬 17 years old (2025): Graduated high school a year early, made my first few sales, and joined Givefront (YC W24) to build spend management for nonprofits full-time
Software Engineer
Founding Engineer
Co-Founder
Founder
Executive Web Developer
