Stjepan Džojić
Software Engineer
Osijek
Summary
As a frontend and mobile developer at PROTOTYP, I focused on creating smooth, user-friendly web and mobile apps using React and React Native. Working closely with UX/UI designers, I led efforts to build intuitive interfaces while mentoring junior developers to strengthen our team’s technical skills. I’m proud to have launched several applications that boosted revenue and improved code quality across projects, reflecting my drive for innovation and high standards in frontend and mobile development.
Co-founder of PLAYOFF, a sport facility management web and mobile app https://theplayoff.app/en.
Overview
3
3
years of professional experience
4
4
years of post-secondary education
3
3
Languages
Work History
Frontend and Mobile Developer
PROTOTYP
Osijek, Osjecko-Baranjska Zupanija
07.2021 - Current
- Enhanced user experience by implementing intuitive mobile applications for iOS and Android platforms using React Native.
- Worked closely with UX/UI designers to translate wireframes into functional prototypes, ensuring consistent visual design across all platform versions.
- I took an active role in code reviews, providing thoughtful feedback to help improve our codebase while also learning from my peers’ insights to sharpen my own skills.
- Consistently met project deadlines by effectively prioritizing tasks and managing workload efficiently.
- Mentored junior developers, fostering a collaborative learning environment that improved team productivity.
- Utilized continuous integration tools to streamline testing processes, improving overall code quality.
- Contributed to the successful launch of several web and mobile applications, generating significant revenue growth for clients.
- Supported legacy apps through maintenance activities such as bug fixes, feature enhancements, and performance improvements.
- Developed responsive layouts for optimal viewing across various screen sizes and devices.
- Integrated third-party APIs to enhance application functionality and create seamless user experiences.
Education
Bachelor of Science - Mathematics
University of Josip Juraj Strossmayer
Osijek 10.2016 - 10.2020
Skills
React
Projects
Sports booking and facility management web app: https://theplayoff.app/en
Tech stack: React, Next.js, TypeScript, Firebase, Vercel, Sendgrid, Recoil
PROTOTYP web app: https://prototyp.digital/
Tech stack: React, Next.js, TypeScript, Ghost CMS, Vercel, Sendgrid, Recoil
Weather, local alerts and radio streams mobile app
Tech stack: React Native, TypeScript, 3rd party weather API, Jotai
Audio and video streaming mobile app
Tech stack: React Native, TypeScript, 3rd party audio and video API, Redux
Door configurator
Tech stack: THREE.js, React Three Fiber, React, Next.js, TypeScript, Firebase, Recoil
Investment bank web app
Tech stack: React, Next.js, TypeScript, Google Firebase, Prismic CMS, Vercel, Recoil
Bussines web app
Tech stack: React, Next.js, TypeScript, Google Firebase, Recoil
Conference web app
Tech stack: React, Next.js, TypeScript, Recoil, Google Firebase, Recoil
Web app for tours
Tech stack: React, Gatsby, TypeScript, Google Firebase, Redux, Prismic, Redux
XR showcase web app
Tech stack: React, Next.js, TypeScript, Google Firebase, Recoil, Prismic, Recoil
...and many more... :)
Timeline
Frontend and Mobile Developer
PROTOTYP
07.2021 - Current
Bachelor of Science - Mathematics
University of Josip Juraj Strossmayer
10.2016 - 10.2020
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