Software Contributions

I have contributed code to a range of software systems over time, spanning commercial platforms, open‑source projects, research prototypes, and early web infrastructure. These contributions reflect both paid and volunteer work, from the early 1990s to the present.

LCS::BV
An open‑source bit‑vector implementation of the Longest Common Subsequence algorithm, released as a Perl package. I started contributing in 2019.
Dumb Password Rules
A curated list of websites with impractical or inconsistent password rules. I started contributing in 2019.
Jeni
A cash deposit platform. I was employed to develop the backend code around 2017–2018. The product was released to the public after my employment ended. Stack: Linux, Apache, Python, Perl, PostgreSQL, Firebird.
Two Factor Auth List
A directory of websites supporting two‑factor authentication. The source code is published on GitHub. I contributed in 2016.
Armaguard Online and ACM Online
Bank vault management and cash‑ordering platforms. I was employed to write code for bank‑related components of these systems over an extended period (approximately 2009–2018). Stack: Linux, Apache, Python, Perl, PostgreSQL, Firebird.
RMIT MIRT (Defunct)
A prototype web‑based music information retrieval system. I was paid to develop the early incarnation in 2003 and later volunteered to maintain and extend it during my PhD. The data storage backend was written in C, with a Perl web application frontend. The engine later evolved into Fanimae. Development was carried out under Solaris using the Sun C Compiler.
Asia Trade Gate (Defunct)
A trading marketplace that I was employed to develop from scratch in 2000. Stack: FreeBSD, Apache, PHP, MySQL.
Karir.com
An employment marketplace. I was employed to contribute code to its early incarnation in 2000. Stack: Linux, Apache, Perl, PostgreSQL (later Oracle).
FMIPA UI
The first HTML‑only website for the Faculty of Mathematics and Science, University of Indonesia. Built while I was studying physics, at a time when the Web was still relatively young. This work was voluntary (1997).

Fun fact: when the site was launched, it used an early tune of mine called Science. The piece was recorded many years later and is available as a recording.

MIKRODATA (Defunct)
A printed computer magazine. I was paid for each piece of code that became published. Period: 1991–1998.