Yogyakarta
Yogyakarta1999
Bi
Born in Yogyakarta
Born in Yogyakarta to my beautiful mother.
TT
Toto Budi Trapsilo- ꦠꦠ ꦧꦸꦢꦶ ꦠꦿꦥ꧀ꦱꦶꦭ
Software Engineer
Hi, I'm Toto, a software engineer working at a payment gateway company. I studied Mathematics at Universitas Gadjah Mada, then transitioned into software engineering for my professional career to build systems that serve real business.
Outside of work, I enjoy drawing, reading, playing football (soccer), and I am generally interested in mathematics and its applications to real-world problems.
Software Engineering•
Financial Technology•
Art & Design
News + Updates
Dec 2025
Shipped a rewritten hosted checkout flow at work, a major payment gateway feature that processes billions of IDR daily.
RELEASE
Aug 2024
My team won first place in the NICEPAY Idea Festival (a company-wide hackathon-like competition) by building a working proof-of-concept AI assistant for payment gateway integrations.
AWARD
Mar 2022
Started my career as a software engineer.
MILESTONE
Jan 2021
Released Kato to the Google Play Store, a game I developed solo (it was before the era of LLM-assisted coding, if that matters).
RELEASE
Aug 2021
Graduated from UGM with a Bachelor's degree in Mathematics.
MILESTONE
Sept 2019
My team won an honorable mention (fifth prize) in the Sanata Dharma Calculus League.
AWARD
Apr 2019
Won a bronze medal at a national mathematics olympiad hosted by the Ministry of Research, Technology and Higher Education of the Republic of Indonesia.
AWARD
Apr 2019
Won a bronze medal in the Individual Category at the Mathematical Analysis & Geometry Day ITB competition.
AWARD
My Path
Yogyakarta
Yogyakarta1999 - 2022
GU
Grew Up in Yogyakarta
Grew up in Yogyakarta, the cultural heart of Java.
Yogyakarta
Yogyakarta2017 - 2021
Ua
Undergraduate at UGM
Completed a Bachelor's degree in Mathematics at UGM
Jakarta
Jakarta2022
SS
Started Software Engineering Career
Transitioned from pure mathematics to software engineering, drawn by the desire to build real systems.
Jakarta
Jakarta2024 - Now
SE
Software Engineer at Payment Gateway
Building and maintaining financial systems at a payment gateway company.