Z a k h a r Shylov

I build modern mobile apps, websites, and digital products with a focus on clean UI, practical functionality, and smooth user experience.

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About

Building digital products
with purpose & precision

I'm a Computer Science student based in Luxembourg with a passion for crafting modern digital experiences. My focus spans mobile development, web applications, and intuitive user interfaces — always with an emphasis on practical functionality and polished design.

I specialize in building offline-first mobile applications and responsive websites that prioritize user privacy, clean architecture, and seamless user experience. Every project I build is driven by a product mindset — solving real problems with thoughtful technology choices.

Beyond coding, I'm deeply interested in the intersection of design and engineering — creating software that not only works flawlessly but also feels premium to use.

0 Published Apps

0 Technologies

0 Platforms

Projects

Featured work

Real products built from the ground up — designed, developed, and shipped.

Birthday Tracker — Reminders

Mobile Application

An offline-first mobile app for tracking birthdays and reminders. Add people, view upcoming dates on a calendar, receive local notifications, organize contacts into groups, add notes, and search with filters — all without an account or server.

iOS Android

Key Features

Offline-first architecture

Local push notifications

Calendar view

Groups & contact management

Privacy-friendly — no backend

Search & filters

Technology

Expo React Native TypeScript Zustand SQLite expo-notifications React Navigation dayjs

Architecture

Built with a local SQLite database for persistent storage and Zustand for state management. All data stays on-device — no accounts, no cloud, no tracking. Local push notifications are scheduled natively through Expo's notification API.

Quick Expenses

Mobile Application

An offline-first iOS expense tracker for logging daily spending, setting monthly budgets, viewing category analytics, and importing bank CSV statements. Transactions are auto-categorized on-device using local rules and merchant memory — no backend required.

iOS

Key Features

Offline-first architecture

CSV bank statement import

On-device auto-categorization

Budget tracking & analytics

Native iOS widget (WidgetKit)

Category-based spending charts

Technology

React Native Expo SDK 54 TypeScript Expo Router SQLite d3-shape WidgetKit / Swift Reanimated EAS Build App Store Connect

Architecture

Full offline-first design with SQLite for local persistence, Expo Router for navigation, and a custom auto-categorization engine that learns from merchant patterns. Includes a native iOS home screen widget built with WidgetKit and Swift via @bacons/apple-targets. Shipped to the App Store through EAS Build and EAS Submit.

Skills