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Senior Java/Kotlin Developer | E-Wallet | Remote at ManpowerGroup Greece. 🚀 Do you want to develop mobile wallets and digital IDs used by millions worldwide? . 💡 Are you a Java/Kotlin expert looking to work fully remote from Greece? . 🔐 Do you want to help build secure mobile driving licenses and mentor the next generation of developers? . ManpowerGroup Greece,.  on behalf of its client, an International Technology Services Provider, with focus at offering ISO-compliant Mobile Driving Licenses, Mobile IDs and overall, Wallet Apps, is looking for a . Senior Developer (Java/Kotlin).  to join their Product Team.. 📌 . Location: Athens Greece. 📍.  Working Model:.  Fully Remote.  (you need to be based in Greece and holder of a valid EU Work Permit). 🖋️ You will be reporting to: CTO. What you will do:. As a Senior Developer, you will design, develop, and maintain applications for mobile wallets and digital IDs, working on . services written in Kotlin. as well as other parts of their stack. You will collaborate with a talented team, write clean, high-performance code, contribute to technical decisions, and mentor junior developers, helping shape the future of secure mobile identity solutions.. Your main responsibilities will be:. . Design, implement, and maintain scalable and robust applications using Kotlin.. . Collaborate with product managers, architects, and other developers to deliver high-quality solutions. . Write clean, maintainable, and testable code following best practices. . Optimize application performance and troubleshoot complex issues. . Participate in code reviews, providing constructive feedback to peers. . Contribute to architectural decisions and technical discussions. . Mentor and support junior and mid-level developers. . BSc/MSc in Computer Science, Software Engineering, or a related field. . 8+ years of professional software development experience in Java or another modern programming language.. . 1+ year of professional Kotlin development experience.. . Knowledge of frameworks like . Ktor. or . Spring Boot (with Kotlin). .. . Solid understanding of OOP, design patterns, and best practices.. . Experience with RESTful APIs, microservices, and cloud-native applications. . Proficiency with build tools (Gradle/Maven) and version control (Git). . Strong knowledge of SQL and relational database management systems.. . Strong problem-solving, analytical, and communication skills. .  . Will be highly appreciated:. . Experience in oAuth/openid (strongly preferred) and IdentityServer4. . Experience in Software Product Development. . Familiarity with cloud platforms like Azure or AWS. . Experience with microservices architecture. . Strong problem-solving skills and ability to think algorithmically. .  . Company Location: Greece.