mbalenovic

Senior Frontend Dev

Results-driven React Developer with 5+ years of hands-on experience in dynamic production environments and a master's degree in Computer Science. 
Currently immersed in shaping the success of an application with a user base exceeding 15 million users.


Experience: 5 years

Yearly salary: $90,000

Hourly rate: $50

Nationality: 🇭🇷 Croatia

Residency: 🇭🇷 Croatia


Experience

Software Developer
Conceptboard
2023 - 2025
- Set the groundwork for migrating from the legacy stack to React by migrating the Homepage and Header, implementing session management, a safety switch, and establishing communication with the legacy backend (API client, data parsing), while introducing React Query to the company - Revamped unreliable end-to-end testing with Cypress.io during the React migration, fixing non-functional tests, improving UI stability and UX, resulting in 114 reliable tests
React Developer
SHAPE
2021 - 2023
- Led the frontend implementation of a microservice to add new features to a legacy codebase and contributed to changes across the system, delivering the solution under a tight deadline before Croatia's currency transition from HRK to Euro - Built an admin app using Next.js with data virtualization for large datasets, enabling admins to manage data independently and freeing up backend developers from manual data entry
React Developer
Flow & Form (Acquired)
2020 - 2021
- Redesigned and enhanced an app for Vergesense using MUI, focusing on the homepage live dashboard with over 15 gadgets to increase user engagement - Developed new features using GeoJSON, Leaflet, Mapbox, and MobX.js to display properties and their floorplans, including data exploration for better visualization and functionality

Skills

javascript
nextjs
react
typescript
front-end
english