Senior Backend Engineer - Suite

Zagreb / HR

Full-time

Permanent employee

40,000 - 43,420 € al año

About the job

F24 is Europe's leading provider of crisis management and emergency notification software, helping thousands of organisations around the world respond quickly during critical situations.
We're expanding our growing Zagreb Engineering Centre of Excellence with a brand-new Suite team. This team will play a key role in modernising our product portfolio by building a new unified frontend while integrating backend capabilities across multiple existing applications.
This is a unique opportunity to join at the beginning of a new team, helping shape both the technical direction and engineering culture from day one.

Why F24?

You'll join a small, highly autonomous engineering team where senior engineers are trusted to make architectural decisions, influence technical direction, and take ownership from design through to delivery.
Initially you'll help expose and consolidate APIs across multiple products while supporting a brand-new React frontend. As the platform evolves, you'll play an important role in building the next generation of our Suite products using modern cloud-native technologies.
Working alongside Product, Design and QA from the outset, you'll be part of cross-functional teams focused on delivering high-quality software rather than following rigid processes.

What you'll be doing:

Design, build and maintain backend services using Node.js and Python
Develop and expose APIs that integrate multiple existing F24 products
Contribute to architectural decisions and technical direction
Collaborate closely with Frontend, Product, Design and QA teams
Take ownership of features from design through to production
Ensure solutions are scalable, secure and maintainable
Support modern engineering practices including code reviews and automated testing
Contribute to the evolution of a brand-new engineering team

You'll likely have experience with:

Strong commercial experience with Node.js
Experience with NestJS (or similar frameworks such as Express or Fastify)
Python development, ideally using FastAPI
REST APIs and distributed systems
Modern software architecture and cloud-native development
CI/CD and automated testing
Working within agile product teams
Taking ownership of technical decisions and delivery

Experience with React or frontend technologies is beneficial but not essential—this role has a strong backend focus.

What you'll enjoy

Joining a brand-new engineering team from the ground up
High levels of autonomy with minimal micromanagement
Real influence over architecture and technical decisions
Cross-functional collaboration with Product, Design and QA
Clear progression into either Technical Leadership or People Management
Modern technology stack and ambitious product roadmap
Friendly engineering culture focused on collaboration, learning and innovation.

¿Quiénes somos?

What we do:

F24 is the leading software-as-a-service (SaaS) provider for alerting and crisis management for sensitive and critical communications in Europe. We are able to offer a highly innovative solution and help customers all over the world to successfully and efficiently manage incidents, emergencies and critical situations.

Founded in 2000, F24 AG is headquartered in Munich, Germany, and supports companies and organisations in more than 100 countries around the globe with its subsidiaries in Zurich, London, Trondheim, Paris, Luxembourg-City, Madrid, Brussels and Munich along with its branches in Mexico City, Santiago de Chile, Vienna and Dubai, Milan. F24’s customers come from various sectors like energy, healthcare & pharmaceuticals, aviation, IT & telecommunication and public organisations.

Find out more about working at F24 here.

Good reasons to work at F24:

Have a tangible impact! Work in an agile environment where you make an important contribution to the success of our customers and the future of our company.
Become part of our established company with an inspiring culture, flat hierarchies and our open, honest, innovative and supportive team!
Grow with us: We are a company on the road to success, experiencing steady international growth. You have the opportunity to help shape our development.
Take advantage of our flexible working model: We rely on a combination of presence in our offices and work from home. This way we strengthen our team spirit and at the same time give you the opportunity to achieve the best possible balance between private and professional life.