Case Studies

Fintech · Bonds

Mongolian Bond Market

Live listings and order book for every Mongolian bond

bond-market

4

exchanges aggregated

Live

bonds & order book

Side-by-side

yield comparison

Overview

Every bond traded in Mongolia, in one place: the platform aggregates four venues - including the OTC market and the Mongolian Stock Exchange - into a single live listing where signed-in users browse bonds and place buy orders.

A multi-card yield calculator lets investors line bonds up side by side and compare returns before buying. The backend is a modular monolith: clear module boundaries without the operational overhead of microservices.

Highlights

  • Aggregates all four Mongolian bond venues, including OTC and MSE.
  • Sign-in flow with live bond listings and a buy-order pipeline.
  • Multi-card yield calculator for comparing bonds and yields side by side.
  • Modular-monolith backend: module boundaries without microservice overhead.

Architecture

Modular monolith aggregating every Mongolian bond venue

Web app

Next.js · shadcn/ui

API

Node.js · modular monolith

Modules

Exchange sync

OTC · MSE · +2

Auth

Orders

Yield calculator

MySQL

bonds · orders · users

grid

Radnaabazar Bulgan

Aruarian Dance