Junior Full Stack Engineer - Suite

Junior Software Engineer – Full Stack

Zagreb | Hybrid

F24 is Europe’s leading provider of crisis management and emergency notification software, helping thousands of organisations around the world respond quickly and effectively during critical situations.

As we continue to grow our Zagreb Engineering Centre of Excellence, we’re looking for a Junior Software Engineer to join our Suite engineering team.

This is an opportunity to develop your career within an experienced product engineering team, working across both frontend and backend technologies while contributing to software that supports organisations during critical situations.

Why F24?

You’ll join a collaborative engineering team where you’ll have the opportunity to learn from experienced developers while contributing to real product features from an early stage.

The Suite team is developing a modern platform that brings together capabilities from across F24’s product portfolio. You’ll gain exposure to the full development lifecycle and work with technologies including React, TypeScript, Node.js and Python.

We don't expect you to know everything from day one. We're looking for someone with good software development fundamentals, curiosity and a genuine desire to become a strong full-stack engineer.

You

• Develop frontend functionality using React and TypeScript
• Contribute to backend services using Node.js and Python
• Build and integrate with REST APIs
• Work with reusable frontend components and modern UI patterns
• Write clean, maintainable and well-tested code
• Fix bugs and troubleshoot issues across the application
• Participate in code reviews and learn from more experienced engineers
• Contribute to automated testing
• Work alongside Product, Design, QA and other engineers
• Learn modern software development practices including CI/CD and cloud-native development
• Take increasing ownership of features as your experience develops

What You'll Bring

• A good foundation in software development
• Knowledge of JavaScript and/or TypeScript
• Some experience with a modern frontend framework such as React, Angular or Vue
• Understanding of backend development using technologies such as Node.js, Python or a comparable language
• Basic understanding of REST APIs and JSON
• Familiarity with Git
• Understanding of HTML and CSS
• An interest in both frontend and backend development
• Strong problem-solving skills and willingness to learn
• Good communication skills and an interest in working collaboratively

Your experience could come from a first commercial software engineering role, internship, university projects, bootcamp, open-source contributions or strong personal projects. We’re more interested in your fundamentals, curiosity and potential than expecting you to have worked with every technology in our stack.

Tools & Technologies

React | TypeScript | JavaScript | Node.js | NestJS | Python | FastAPI | REST APIs | JSON | HTML | CSS | Git | CI/CD

Nice to have: Next.js, Express.js, Tailwind CSS, shadcn/ui, Automated Testing, Docker, Cloud Technologies, personal or open-source projects and AI-assisted development.

What you'll enjoy

• Building real features for a global SaaS product
• Exposure to both frontend and backend engineering
• Learning from experienced software engineers
• Working with a modern JavaScript/TypeScript, Node.js and Python stack
• Developing an understanding of the full software development lifecycle
• A supportive environment where you're encouraged to ask questions and experiment
• Opportunities to gradually take on more complex technical challenges
• Clear progression as your technical skills and ownership develop

Salary is paying up to €26,971 (Gross annually)