Hi, I'mTomislav Sertic

Full-Stack Software Developer

Driven Software Developer from Zagreb 🇭🇷, specializing in crafting high-performance web applications, robust backend systems, and effective digital solutions. I thrive on tackling complex challenges and transforming ideas into reality.

My core toolkit includes JavaScript/TypeScript, React, Next.js, and Node.js for dynamic front-ends and APIs. I'm also proficient in backend development with C# and scripting/automation with Python. Building and consuming RESTful APIs is a key part of my workflow.

I have solid experience with both relational (SQL) and NoSQL databases (like MongoDB, Sanity). Beyond conventional development, I actively explore AI integration to create smarter, more automated applications.

My Projects

Explore a selection of my work. Click on a project to see details.

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About Me

Tomislav Sertic

Hello there.

I'm Tomislav Sertic, a versatile software developer from Zagreb, Croatia 🇭🇷, passionate about building robust applications and solving complex problems with code.

With 5 years of experience, my focus is on developing scalable, efficient, and user-friendly software solutions, while also being proficient in modern web technologies.

Technical Skills

Core Languages: Proficient in JavaScript/TypeScript and C#. Experienced with Python for scripting and automation tasks.

Web Development: Strong command of React and Next.js for building dynamic front-end experiences. Skilled in Node.js (Express) for backend services. Proficient with SCSS and Tailwind CSS.

API Development: Experienced in designing and building RESTful APIs using both Node.js and C# (.NET Core/ASP.NET).

Databases: Solid experience with relational databases (SQL) and NoSQL databases (MongoDB, Sanity, Firestore).

AI & Automation: Interested in leveraging AI models (cloud & local) for enhancing applications. Utilize Python for creating various automation scripts.

Tools & Design: Comfortable translating Figma designs into code and using Adobe Creative Suite when needed.

Professional Experience

Current Role: Software Developer at Arctis d.o.o (Archibus IWMS Representatives).

Key Responsibilities: Full lifecycle involvement including server setup, database integration (primarily SQL), and programming custom features and integrations using JavaScript and other relevant technologies.

Significant Projects: Gained extensive experience collaborating with large corporate clients. Notably contributed to a project for Saudi Aramco, involving data analysis and React development within the Archibus ecosystem.

Beyond the Keyboard

Balanced Life: I strive for balance. When I'm not coding, you'll find me spending quality time with my family and my loyal dog.

Active Pursuits: I'm an avid basketball player (Pregrada Barbari - CroHoops), enjoy cycling, exploring nature through hiking, and diving.

Mind Games: I also enjoy unwinding with a game of chess.

Connect: Curious about my offline adventures? Check out myInstagram.

Latest Blog Posts

Check out some of my recent thoughts and findings.

Creating a 3D Rotating Cube with Three.js

Creating a 3D Rotating Cube with Three.js

Creating a 3D Rotating Cube with Three.js

March 29, 2025by Tomislav Sertic

Get In Touch

Interested in collaborating or have a question? Feel free to reach out. The best way to connect is via email or LinkedIn.