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SR. MOBILE DEVELOPER (iOS & ANDROID)

Key Facts

Full time
Senior (5-10 years)
English

Other Skills

  • Problem Solving
  • Communication
  • Leadership

Roles & Responsibilities

  • 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)

Requirements:

  • 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

Job description

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 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.

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 

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