Viktor – React, Node.js, React Native

A web-based content and RSS feed reader, a cloud-based service for web browsers and mobile devices running iOS and Android. It compiles news feeds from online sources for the user in unified layout to customize and share with others.

• migrated existing native apps to React Native application
• integrated native widgets to RN app
• implemented payments & push notifications
• implemented offline mode version of the app
• migrated the whole app from Context API to Redux to boost performance
• implemented various animations throughout the app

The biggest logistics company in Bulgaria, with more than 4k employees. The company constantly introduces innovations and adds more services to its portfolio. There're a lot of systems, sub-systems, and web and mobile applications that are regularly optimized and upgraded.

• worked on the package management module - creating, tracking, and canceling orders
• fixed bugs in key features in the main mobile application
• did frequent communication and requirement gathering from different shareholders

Heybets is one of the most well-known crypto casinos on the market. The Casino comprises various third-party integrations for crypto payment services and casino games.

It consists of multiple subsystems like:

• VIP level-up system with multiple rewards
• Fantasy Football module with StatsPerform integration
• 6000+ casino games in different categories
• Sportsbook betting module

• led the front-end team
• co-built the main architecture of the application
• implemented the backend and frontend for complex features
• improved the Google Lighthouse score from 58 to 91 by introducing SEO optimization
• integrated with 3rd party APIs like Intercom, Cryptochill, onRamper, Noda pay
• migrated from CSR to SSR for better SEO and speed using Remix
• built web socket communication for enabling live data updates via Socket.io
• onboarded new team members
• did frequent client demos
• performed PR reviews daily

Staff Squared is a cloud-based onboarding, personnel tracking, absence management, and performance appraisal platform for small businesses. It helps manage employee absences by allowing organizations to track holiday balances, accrual, carry-over, and sick leave.

• worked as the main developer responsible for the whole web app and backend
• integrated Pulse platform (Intelligent employee feedback analysis platform) into the main StaffSquared platform successfully
• migrated StaffSquared current mobile application to React Native
• managed to resolve crucial payment and notification-related issues which were affecting client satisfaction
• modernized the tech stack and improved the overall code quality

The project was called MysteryShopping, and it is an enterprise client-server application with lots of functionalities for creating dashboards for different clients who want their services to be monitored and improved.

• developing new pages and sections for the web application
• improving the overall code coverage from 50% to up to 80%
• liaised with back-end & front-end developers, QA tester, and CTO as needed
• onboarding new team members

B2B wholesaler business for selling pharmaceutical supplies. Designed in React with separation between seller and buyer.

• led developers in the front-end team`
• implemented complex offline synchronization functionality
• built the main architecture of the mobile application
• maintained communication with the client to expand and improve the whole system

Meet.Direct is a social platform that connects regular users with businesses and serves as a way to get benefits such as coupons. It gives businesses more exposure and statistics about customers and discounts to private users.

• laid the foundations of the project
• reused a big part of the state management logic of the web-based application
• implemented many features like QR readers, Instagram filters, content restrictions, and a coupon system

Ablera is a Bulgarian startup creating a suite of products related to insurance software using machine learning. The company provides insurance companies with an innovative solution that optimizes business processes and helps them simplify complexities associated with digital transformation.

• created BPMN workflows for the system
• developed and supporting microservices
• implemented the frontend and backend of new features