ABOUT REIZ TECH Reiz Tech is more than just an IT company. We are a trusted end-to-end IT advisor throughout clients’ business lifecycle. We have a growing global presence in more than 30 countries and regions, united to deliver end-to-end IT solutions. Our talents work together remotely, and low leadership levels are decentralized for better communication, decision-making, and flexibility. ABOUT THE PROJECT We are searching for a Senior Mobile Developer on T&M basis to develop a secure financial application that enables clients to apply for and manage loans directly through their mobile devices. The app will allow users to submit loan applications, receive real-time eligibility decisions, review repayment terms, and track their loan status, providing a fast, convenient, and user-friendly digital lending experience. This position is T&M based. The application is open for candidates from Lithuania. RESPONSIBILITIES Design, develop, and maintain high-quality mobile applications for both iOS and Android platforms. Lead the mobile architecture and make key technical decisions to ensure scalability, security, and performance. Implement secure user authentication, loan application workflows, and payment-related features. Integrate mobile apps with backend services, APIs, and third-party financial systems. Ensure compliance with security standards, data protection regulations, and best practices for financial applications. Optimize application performance, reliability, and user experience across devices. Conduct code reviews, enforce coding standards. Collaborate closely with product managers, designers, backend developers, and QA teams. Oversee app releases, versioning, and deployments to the App Store and Google Play. Identify and resolve complex technical issues and production bugs. REQUIREMENTS Proven experience in mobile application development, including native iOS (Swift) and Android (Kotlin/Java). Strong understanding of mobile architecture patterns (MVVM, MVP, Clean Architecture). Experience developing secure, production-grade financial or payment-related applications. Solid knowledge of mobile security practices (encryption, secure storage, OAuth2, biometrics). Experience with RESTful APIs, JSON, and backend integration. Familiarity with CI/CD pipelines, automated testing, and app store deployment processes. Experience with third-party SDKs (analytics, payments, notifications). Strong problem-solving skills and ability to work independently on complex features. Excellent communication and leadership skills. WHAT WE OFFER Salary range: €30 - €50 (gross) / hour. Fully remote work with flexible work hours and vacation policy.​ A diverse international work environment that promotes inclusivity and collaboration.​ Internal mentorship program.​ Additional healthcare insurance, loyalty days. Compensated professional development opportunities, including learning materials and certification exam fees. Internal events like Reiz Tech Talks and Learning Sessions. Team-building compensation every quarter.​ Participation in local events in Lithuania such as wakeboarding, excursions, and Meet and Eat gatherings.​ Ability to change the project you’re working on.​ Referral bonuses. For information about your personal data processing, please see our Recruitment Privacy Policy