
John Larence Lusaya
Programmer and Ethical Hacker
About Me
Building software & breaking it for a living.
I'm Larence, 21 years old and studying at Mapúa University. I'm a champion in multiple hackathons and work as a Fullstack Application Developer — building web apps, mobile apps, and managing PostgreSQL databases.
I love ethical hacking and malware creation, especially shellcode loaders. Off the keyboard, you'll find me with my cat and my Rubik's cube.
Hackathons
Where I won & championed.
Competitions I've taken to the top of the podium.
GrowthCon PH Live Startup Pitching Competition
Meralco IDOL Hackathon
Work Experience
Products I've shipped.
Real systems used by real enterprises.

Nextcore Technology Inc
Quickdesk
Fullstack Application Developer
A subscription-based ticketing system that helps enterprise companies manage their tickets.
Used by Toyota Philippines, Uratex, CHG Global Inc, and Sysu International.

Nextcore Technology Inc
GrootHR
Fullstack Application Developer
A subscription-based multitenant HRIS that helps enterprise companies manage employee attendance, records, leaves, overtime, COEs, hierarchies, and many advanced features.
Certifications
Credentials & continuous learning.
Verified badges and accomplishments. Click any card to verify.
Work With Me
Let's build something exceptional.
Have a project, a role, or just want to talk security and code? My inbox is open.
johnlarencelusaya@gmail.com