# Selected work

> Engineering write-ups by Dragan Jovev: MomDadTales, Risk Analytics Platform, Connected Device SDK. How each was approached.

URL: https://jovev.com/work
Author: Dragan Jovev (https://jovev.com)
Updated: 2026-09-30

Three projects, described in terms of how they were approached — the constraints, the decisions, and the tradeoffs behind them.

## [MomDadTales](https://jovev.com/work/momdadtales.md)

An iOS app of illustrated, narrated bedtime stories, which I built on my own and shipped to the App Store. About $0.30 a story to produce, about $30 a month to run.

Topics: Swift, SwiftUI, StoreKit 2, App Attest, Node.js, TypeScript, PostgreSQL, Fly.io, Cloudflare, S3, OpenAI, ElevenLabs

## [Risk Analytics Platform](https://jovev.com/work/risk-analytics-platform.md)

A risk-analytics platform for banks and investment funds, rebuilt for portfolios ten times larger on responses a tenth the size.

Topics: React, TypeScript, Remix / React Router, Node.js, Redis, AG Grid

## [Connected Device SDK](https://jovev.com/work/connected-device-sdk.md)

An iOS SDK connecting applications to Bluetooth Low Energy hardware, including over-the-air firmware updates. Dozens of applications shipped on it.

Topics: Swift, CoreBluetooth, BLE, device protocols, firmware updates, SDK API design