David Saginashvili

I developed a large-scale React Native application where users can post missions and ask for help with various tasks. Other users with a specified distance can view the posted missions and also provide some help. After completing the mission, posters can rate the helpers and additionality donate to some charity organization.

The app was built with the Expo framework and utilizes many features, geolocation, messaging, Stripe payments, and so on. I also reimplemented a large portion of this app with added support for multiple helpers, optimized data fetching, and cloud functions through a Firebase service.

I worked on a web application for people who are looking for an easy way to manage travel expenses, optimized day planning, and automatic route optimizations. I specifically worked on the core front-end functionality and implemented the drag-n-drop system and planning logic.

For this, I worked on the front-end part of the project, added mobile support, and optimized layout rendering performance. I also created various pages and implemented live category filtering with in-memory caching.

The app was a commercial project that integrated Harvest time-tracking and invoice capabilities to the Fortnox management system. I entirely built the back-end API to sync and manage the services provided by Harvest automatically. I also built the React front-end client, implemented the authentication, and integrated Stripe payments.

The reactor was a full-blown web messenger built with fluidity in mind. The app uses React for the front-end and context API for state management. For optimized channel communication, I've also integrated WebSockets and Firebase mobile authentication.