Lindung Manik

A fintech ecosystem for financial use-cases that enable users to purchase and sell digital goods, such as mobile credits, electric tokens, tickets, and game vouchers using cash, in-house e-wallet, or nano loans (pay later). I led a small developer team and designed the software architecture from end to end. In the front end, I also developed some parts in the Android (installed in customers' devices or sellers' EDC devices) and the vending machine that could receive cash from customers. I further developed the middleware connected to the digital goods providers' systems using various APIs. I also supervised the development of the back-office application and dashboards to monitor transactions and generate reports.

An Android-based app that enables end-users to make transactions in a department store within the app using linked e-wallets, get points from the transactions, and redeem the points with some rewards and gifts. I led a small developer team and designed the APIs. I also developed some Android parts, the back end using Spring Boot, and the web-based back-office application. I further managed the integration with the e-wallet providers, the loyalty system, and the parking system.

An Android-based app that enables users to plan investment goals, assess their risk profiles, make mutual funds investments, manage their portfolios, and chat with financial advisors. I led a small development team and designed the software architecture. I also developed some parts of Android used by end-users, a web-based back-office application used by administrators and financial advisors, and the back end connected to the mutual fund selling agents' systems using APIs.

An Android-based app to track salespersons' journeys and transactions. I led a small development team and designed the software architecture. I also developed the tracking parts in Android using Google Maps and Mapbox API as well as the back-end application. I further supervised the development of the back-office application and dashboards to track salesperson journeys, monitor transactions, and generate reports.

A payment gateway service, enabling banks' consumers easier, flexible, and instant transaction services. I led a small development team, designed software architecture, and developed middleware connecting various banks' front ends such as SMS banking, internet banking, ATM, Kiosk vending machine, EDC device with banks' core system, and also billing providers' systems using various communication protocols and numerous message formats. I further supervised the development of the back-office application and dashboards to monitor transactions and generate reports.