Senior Mobile Developer (all genders)

Listed as a remote role based in Zagreb, Zagreb, Croatia. About The Job Senior Mobile Developer Zagreb | Hybrid F24 is Europe's leading crisis management SaaS platform, trusted by governments, airlines, banks, and Fortune 500s in over 100 countries. When a major incident unfolds, our software is the system people rely on. Our Zagreb Tech Centre is already up and running. Wave 1 of our engineering team is in place, and we're now expanding into Wave 2, bringing in more senior engineers to accelerate the work already underway. Why F24? You'll be working on technology that genuinely matters. F24's Emergency Notification System (ENS) is a mission-critical platform for real-time crisis communication, used by millions of users globally. The mobile experience sits at the heart of that — and it's being built for the next generation, with cloud-native architecture, advanced mobile security, and offline-first capabilities. You This is an opportunity to: ✔️ Build software used by 5,500+ organisations worldwide ✔️ Work on high-scale, high-availability mobile applications that perform in real emergencies ✔️ Influence mobile architecture decisions and engineering best practices ✔️ Join a growing engineering hub with significant investment and long-term growth plans ✔️ Collaborate with Product, Engineering, QA and Architecture teams across Europe ✔️ Help build secure, resilient mobile systems that people depend on in a crisis What You'll Bring: ✔️ Strong React Native development experience with Expo ✔️ A background working in product-led SaaS environments ✔️ Practical exposure to AI tools (e.g. Copilot) or experience integrating ML features ✔️ A collaborative mindset and a desire to solve complex technical challenges like offline-first architecture, performance optimisation, and mobile security Tech Stack: React Native | Expo | MobX | Swift | Kotlin/Java | Firebase | Realm | Axios | Docker | Kubernetes | CI/CD | Automated Testing About F24 F24 is Europe's leading provider of crisis management and emergency notification software. Trusted by more than 5,500 organisations globally, we're helping businesses protect their people, operations, and reputation when it matters most. If you're looking for a role where you can make a genuine impact while helping shape a growing engineering organisation, we'd love to hear from you. Salary is paying up to €48,420 (Gross) annually. 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. Show more Show less Seniority level Associate Employment type Full-time Job function Information Technology Industries Software Development