About the job

Experienced Mobile Developer who will take ownership of complex features and serve as technical authority. Works with Product Owners to translate business requirements into scalable, secure mobile solutions.

You

Key Responsibilities
Feature Ownership & Delivery

• Take ownership of complex features from design through production
• Work with Product Owner to refine requirements
• Estimate and execute deliverables reliably
• Identify technical risks early and propose mitigation
• Ensure features meet security, performance, and scalability requirements
• Manage app store release processes

Continuous Improvement

• Identify opportunities for technical optimization and refactoring
• Evaluate new tools, frameworks, and approaches
• Propose improvements to development processes
• Stay current with iOS and Android platform updates

Required Qualifications
Experience

• Minimum 3+ years of professional software development
• Minimum 3+ years with React Native + Native iOS/Android development
• Proven experience designing scalable mobile systems
• Strong track record shipping production apps reliably
• Experience mentoring or leading other developers
• Familiarity with app store deployment processes

Technical Expertise – Mobile Stack

• Expert-level React Native with deep understanding of native bridge and platform-specific considerations
• Strong iOS development: Swift, native APIs, performance optimization, App Store deployment
• Strong Android development: Kotlin/Java, native APIs, performance optimization, Google Play deployment
• State management expertise (MobX or Redux patterns)
• Mobile-specific skills: offline-first design, performance optimization, memory management, battery efficiency
• Firebase proficiency: authentication, real-time databases, cloud functions, analytics
• HTTP/REST clients (Axios), local data persistence (Realm)
• Understanding of app store processes and mobile-specific security
• Native iOS/Android build processes and CI/CD for mobile

Cross-Stack Competencies

• Expert REST API design and best practices
• Strong security knowledge: authentication, authorization, encryption, mobile security threats
• Cloud-native architecture patterns: microservices, distributed systems, resilience
• CI/CD pipelines for mobile, automated testing strategies (unit, integration, E2E)
• Basic understanding of AI/ML concepts (ideal)

Bonus: Polyglot Capabilities

• Experience with Python, PHP, Node.js, Java, or other backends
• Ability to understand backend architecture implications

Soft Skills

• Excellent communication in English and German
• Ability to articulate complex technical concepts clearly
• Strong problem-solving and analytical thinking
• Mentoring and coaching capabilities
• Proactive, self-directed, takes ownership
• Comfortable with ambiguity and rapid change

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.