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Tonči Marinac Profile Picture

Hey, I'm Tonči Marinac!

Frontend developer with 2 years of experience and a Master's degree (MSc) in Informatics, based in Rijeka, Croatia.

I specialize in building e-commerce and content-driven applications with React ecosystem.

I'm currently open to new freelance projects. If you have an idea you'd like to discuss, feel free to reach out!

Tech Stack

The tech stack I use for my personal and client work:

Frontend

  • React
  • Next.js
  • Astro.js
  • TanStack Query
  • TypeScript
  • shadcn/ui
  • Tailwind

Backend & Services

  • Clerk
  • Better-auth
  • Postgres
  • Convex
  • Prisma
  • Sanity CMS
  • AI SDK

Projects

These are the projects I’m most proud of, ranging from personal side projects to professional work:

Fiskalio

Fiskalio

Fiskalio is a personal finance management application that helps users track and organize their bills across multiple properties. The app features secure credential storage, monthly bill tracking with due dates, and a clean responsive UI with dark/light theme support.

Next.jsConvexClerkShadcnTailwind+1
Read more about Fiskalio project
VK Lošinj

VK Lošinj

New website for VK Lošinj built with Next.js and Sanity CMS. Includes news posts, match schedule with results, galleries, multilingual support (HR/EN), and a secure contact form using Resend + React Email with Cloudflare Turnstile.

Next.jsTailwindSanity CMSnext-intlFramer Motion
Read more about VK Lošinj project
Pastplied

Pastplied

Pastplied is a job application tracking system built with Next.js, TypeScript, Clerk and Convex that helps job seekers manage applications efficiently. Features AI-powered job data extraction using Google's Generative AI to automatically parse data, eliminating manual data entry.

Next.jsConvexTailwindGeminiClerk+1
Read more about Pastplied project
Eventwave

Eventwave

Professional frontend developer for Eventwave, a live event management and ticketing platform. Built a complex, responsive Next.js frontend with Tailwind and customized shadcn components, including interactive maps, timelines, multi-step forms, light/dark mode, and multilanguage support.

Next.jsTailwindShadcnLaravel
Read more about Eventwave project

Experience & Education

Professional and academic journey.

  • Nov 2025 — Mar 2026

    Web Developer

    Nivago d.o.o.

    Ul. Braće Cetina 4, 51000, Rijeka (Croatia)

    • Developed and maintained websites using HTML, CSS (Bootstrap), and JavaScript, delivering responsive layouts for desktop and mobile devices
    • Built and customized e-commerce and content-driven websites using PHP or Classic ASP, depending on project requirements
    • Implemented and maintained custom CMS solutions, adapting frontend templates to client-specific needs

  • Jul 2024 — Aug 2024

    Frontend Developer Intern

    Kupuj Online d.o.o.

    Fiorello la Guardia 13, 51000, Rijeka (Croatia)

    • Translated Figma designs into responsive frontend pages for the Visit Rijeka Shop and Hacienda nightclub admin web shop, ensuring visual consistency
    • Gained hands-on experience with SSSR (Signals, State, Selectors, Reducers) architecture in Angular, improving code organization and state management practices

  • Oct 2022 — Sep 2023

    Frontend Developer

    Juice d.o.o.

    Prolaz Marije Krucifkse Kozulić 1, 51000, Rijeka (Croatia)

    • Maintained and enhanced existing web applications by adding new features and improving UI/UX across Vue.js, embedded JavaScript, and Angular codebases
    • Collaborated with designers to implement a complete redesign of the Visitorapp web application
    • Attended daily morning Scrum meetings as part of an Agile development workflow

Latest Blogs

My recent thoughts and writings:

Find me on

You can find me on the following platforms:

Get in touch

You can reach me anytime at toncimarinac@gmail.com