MARIO HRŽINA
Bunjani
Overview
4
4
years of professional experience
Work History
Front End Developer
Calzedonia Digital
Zagreb
02.2023 - Current
- Developed responsive, high-traffic e-commerce web interfaces using HTML, CSS, and JavaScript, serving millions of users.
- Worked with the Deloitte Digital team to deliver enterprise-grade e-commerce solutions.
- Built and maintained storefront features on Salesforce Commerce Cloud (B2C).
- Implemented and customized e-commerce components such as product listings, PDPs, cart, checkout, and promotions.
- Integrated RESTful APIs to support product catalogs, pricing, inventory, and order management.
- Optimized frontend performance to improve page load times, conversion rates, and overall shopping experience.
- Supported marketing initiatives by developing landing pages and campaign features that increased user engagement and conversions.
- Collaborated with cross-functional teams (design, backend, QA, marketing) to enhance site functionality and UX.
- Ensured cross-browser and cross-device compatibility through thorough testing and debugging.
- Followed best practices for code quality, maintainability, and scalability in a fast-paced, deadline-driven environment.
- Participated in code reviews, providing constructive feedback and contributing to team standards.
- Created clear technical documentation for reusable front-end components.
- Used version control systems (Git) to manage code changes and support efficient team collaboration.
Frontend Developer
Node Factory
Zagreb, Croatia
02.2022 - 02.2023
- Developed responsive web applications using HTML, CSS, and JavaScript frameworks.
- Collaborated with designers to implement user-friendly interfaces and enhance UX/UI.
- Optimized website performance through code refactoring and efficient asset management.
- Designed user-friendly interfaces, improving overall user experience across platforms.
- Conducted research on emerging technologies to drive innovation in product development.
- Continuously updated skills through training courses, workshops, and self-study—staying current on industry trends and emerging technologies.
- Integrated RESTful APIs to improve application functionality and data management.
- Developed responsive decentralized application (dApp) interfaces interacting with smart contracts.
- Integrated blockchain wallets for secure user authentication and transaction signing.
- Worked closely with smart contract developers to ensure accurate data handling and UX consistency.
- Managed blockchain network states (testnet/mainnet) within frontend environments.
Education
Bachelor of Science - Informatics
Faculty of Organization And Informatics
Varaždin, CroatiaSkills
- HTML
- CSS (Sass and other CSS libraries)
- JavaScript
- jQuery
- TypeScript
- React
- Vuejs
- Nuxtjs
- Nextjs
- REST API
- GraphQL API
- Git
- GitHub
- GitLab
- Jira
- Confluence
- PHP
- Nodejs
- PostgreSQL
- MySQL
- Salesforce
Timeline
Front End Developer
Calzedonia Digital
02.2023 - Current
Frontend Developer
Node Factory
02.2022 - 02.2023
Bachelor of Science - Informatics
Faculty of Organization And Informatics