Siniša Miličić

A Python and PostgreSQL-based system of services designed to process thousands of students with a byzantine system of rules to replace an existing, manual, paper and point-and-click based procedure with lots of repetitive labor. With a set of services and efficient views, no form-filling was needed on the student side, and, with decent cryptography, privacy and security were quite well ensured.

Using Python 3, Flask, and SQLAlchemy, I built a simple CRM for the management of cooperative members and membership applications. It was integrated with a rather complex legal application form and multi-step workflows for membership management.

I designed an event-sourced core banking system for a community bank; this was done in the early stages of the bank's founding.

The software was decentralized with a focus on auditability, security, and authority. Auditability was achieved by using an executable event log of pseudonymized operations, security through strong cryptography on communication points, and authority through the RAFT consensus protocol.

I designed and implemented a voting system in PHP and JavaScript, using SQLite as a back-end and Python for bootstrapping. The system is used by the Cooperative for Ethical Finance for digital voting on various issues with the voter base numbering hundreds of cooperative members.

I designed and implemented in Python a generic system for the computation of interest rates that is, along with standard methods of accrual, compatible with interest accrual skipping bank holidays and having other complex interactions with real calendars. The system runs as a standalone service.