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Software Engineer (PC Client & MGW)

Zagreb / HR
Full-time
Permanent employee

About the job

F24's Media Gateway platform connects critical communication infrastructure across a wide range of industries, from emergency response to industrial environments.

We're looking for a Software Engineer who enjoys working close to the operating system, solving complex technical problems and building software that interacts directly with hardware and Windows services.

This role offers something different from traditional application development—combining Windows engineering, systems programming and distributed communication with opportunities to modernise an established platform.

Why F24?
You'll join a small engineering team with significant ownership and freedom to explore new technologies.

The team is modernising both the software and hardware platform, moving towards a more accessible web-based architecture while continuing to support large-scale communication systems handling thousands of connected devices.

If you enjoy understanding how computers work beneath the application layer, this role offers a rare opportunity to work across operating systems, hardware integration and large-scale event processing.

Key Responsibilities
  • Develop native Windows applications and background services
  • Build software that communicates with hardware devices and Windows drivers
  • Develop long-running Windows services and system components
  • Work with DLLs, Windows APIs and low-level system libraries
  • Process high volumes of device events and communication streams
  • Help modernise the Media Gateway platform and supporting infrastructure
  • Collaborate closely with engineers across Croatia and Germany
  • Participate in technical discussions, R&D and architectural improvements

About You
You'll likely have experience with:
  • Native Windows application development
  • Windows Services and long-running background processes
  • Windows APIs, DLLs and system-level programming
  • Hardware integration or device communication
  • Multithreaded or event-driven systems
  • Troubleshooting operating system and hardware issues
  • Strong debugging and problem-solving skills
Bonus experience includes:
  • Raspberry Pi, Arduino or personal hardware projects
  • Bluetooth, beacons or IoT devices
  • IP telephony
  • Industrial systems or embedded hardware
  • German language skills (beneficial but not required).

What you'll enjoy
  • Working on technology that's difficult to find elsewhere
  • Modernising both software and hardware platforms
  • Small team with significant ownership and technical influence
  • Opportunities for R&D and experimentation
  • Potential travel to Germany and customer environments
  • Exposure to industrial technology, communications infrastructure and large-scale distributed systems
  • Career progression as the engineering organisation continues to grow

Tools & Technologies:
Native Windows Development | Windows Services | Windows APIs | DLLs | Device Drivers | C++ | C# | Windows Desktop Applications | Background Services | Event-driven Systems | Hardware Integration | Bluetooth | IP Telephony | Media Servers | Git | IntelliJ IDEA

Nice to have:
Raspberry Pi | Arduino | IoT Devices | Beacons | Distributed Systems | Multithreading          | Industrial Hardware | Debugging & Performance Optimisation | AI-assisted development

About us

What we do:
 
F24 is Europe’s leading Software-as-a-Service (SaaS) provider for resilience. More than 5,500 customers worldwide rely on F24’s digital solutions, which support companies and organisations through all areas of resilience. Solutions cover business messaging and service notification, emergency and mass notification, incident and crisis management, as well as governance, risk and compliance. 
 
F24 supports customers in virtually every sector ranging from energy, healthcare, industry, finance, IT, tourism and aviation to a wide variety of public organisations. Many years of international experience have made F24 experts in improving resilience with digital solutions. 
 
The company was founded in 2000 in Munich, where F24 AG’s head office is still located. Today, F24 supports companies and organisations in more than one hundred countries, via more than 20 locations in Europe and beyond. The F24 AG Board of Directors consists of F24 co-founder Christian Götz and the spokesperson Dr. Jörg Rahmer.

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 gives you the opportunity to achieve the best possible balance between private and professional life.