SR. MOBILE DEVELOPER (iOS & ANDROID) - T&M

Lithuania·Lithuania

EngineeringMobile Developer

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Quick Summary

Overview

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.

Technical Tools

EngineeringMobile Developer

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.

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.

The application is open for candidates from Lithuania.

Responsibilities

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Design, develop, and maintain high-quality mobile applications for both iOS and Android platforms.
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Lead the mobile architecture and make key technical decisions to ensure scalability, security, and performance.
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Implement secure user authentication, loan application workflows, and payment-related features.
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Integrate mobile apps with backend services, APIs, and third-party financial systems.
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Ensure compliance with security standards, data protection regulations, and best practices for financial applications.
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Optimize application performance, reliability, and user experience across devices.
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Conduct code reviews, enforce coding standards.
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Collaborate closely with product managers, designers, backend developers, and QA teams.
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Oversee app releases, versioning, and deployments to the App Store and Google Play.
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Identify and resolve complex technical issues and production bugs.

Requirements

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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.