Senior Mobile Developer (Flutter & Android Kotlin/Java)

We are looking for a highly skilled Senior Mobile Developer with strong expertise in Flutter and Native Android (Kotlin/Java). You will play a key role in developing high-quality, scalable mobile applications, implementing engineering best practices, and contributing to the technical direction of the product.

• Analyze project requirements and collaborate with PM and stakeholders to provide accurate effort and timeline estimations.
• Design, develop, and maintain mobile applications using Flutter and Kotlin/Java.
• Write clean, maintainable, and testable code following industry best practices.
• Perform unit testing and participate in code reviews to ensure high engineering quality.
• Troubleshoot, diagnose, and resolve technical issues; continuously improve performance, stability, and reliability.
• Work effectively with cross-functional teams (Backend, QA, Product) to ensure successful delivery.
• Provide technical mentorship and guidance to junior/mid-level developers.
• Take ownershipofassigned tasks, monitor progress, and ensure timely delivery.
• Contribute to establishing and maintaining development workflows: branching strategy, codereview standards, testing practices, CI/CD pipelines.
• Support the publishing, updating, and maintenance of apps on the Apple App Store and Google Play Store.

Technical Skills

• 4+ years of hands-on experience developing Android applications using Kotlin/Java.
• 3+ years of professional experience in Flutter and Dart.
• Strong understanding of OOP,software architecture, design patterns, data structures, and algorithms.
• Proven experience delivering production-grade mobile applications.
• Strong proficiency with Android development tools (Android Studio, Gradle, debugging tools).
• Solid knowledge of RESTful APIs andintegrating third-party SDKs/APIs.
• Practical experience with Flutter state management (Bloc, Provider, Riverpod, or similar).
• Strong analytical, debugging, and problem-solving capabilities.
• Experience optimizing mobile apps for performance, memory usage,battery efficiency, and smooth UI/UX.

Soft Skills

• Strong communication and teamwork skills.
• Ability to work independently with high accountability and ownership.
•  Ability to contribute effectively to workload estimation and planning discussions.

Preferred Qualifications (What Will Make You Stand Out)

• Prior experience as a Team Lead or Technical Lead in mobile development. 
• Hands-onexperience managingthefull apprelease cycle, including handling App Store / Play Store review feedback and ensuring compliance.
• Ability to manage and upgrade third-party SDKs, libraries, and dependencies to support OS updates and maintain compatibility.
• Experience working with large-scale apps that integrate multiple partner SDKs (payment, loyalty, tracking, analytics, referral ).
• Strong self-management skills: ability to plan, prioritize, proactively report progress, and consistently meet deadlines.
• High accuracy in effort estimation and strong ownership of delivery commitments.
• A solid product mindset:ability to understand product goals, safeguard application quality, andchallenge non-aligned requirements.
• Domain experience in:  

+ Fintech / Financial services.

+ Loyalty, membership, orrewardssystems.

+ Apps that require heavy SDK integrations, engagement tracking,or analytics.

+ User growth,engagement,orretention-focused products.

• Experience with AI tools or AI Agents toenhancedevelopmentproductivity, automation, or analysis.
• Strong sense of ownership, long-term thinking, and dedication to delivering a stable, high quality user experience.

• Bằng cấp: Đại học
• Độ tuổi: Không giới hạn tuổi
• Hình thức: Nhân viên chính thức