Senior Flutter Developer

PT. Sarimelati Kencana Tbk.; Daerah Khusus Ibukota Jakarta; On-site; IDR 200.000.000 - 300.000.000; Full time

Job summary

A leading company in Indonesia is looking for a Mobile App Developer to lead the development and delivery of high-performance mobile applications using Flutter. You will collaborate with cross-functional teams to create app experiences that enhance customer engagement and operational systems. Ideal candidates will possess a strong understanding of Flutter best practices, proven experience in high-volume environments, and the ability to integrate various services. This contract position offers an exciting opportunity to make an impact in a fast-paced industry.

Qualifications

• Strong understanding of Flutter and mobile app best practices.
• Experience in high-volume transactional environments (POS systems, loyalty apps).
• Proficient with Git and collaborative workflows.

Responsibilities

• Lead development of high-performance mobile apps for iOS and Android.
• Optimize apps for performance, scalability, and reliability.
• Mentor junior developers and contribute to mobile project leadership.

Skills

Flutter best practices

App Scalability

Git

API Integration

UI Development

Tools

Firebase

Azure

AWS

Job description

CONTRACT BASED 1 YEAR

Job Descriptions :

• Lead development & delivery of high-performance mobile apps using Flutter for both iOS & Android platforms
• Collaborate with product managers, UI/UX designers & backend engineers to design & implement mobile experiences that support our customers engagement, ordering, loyalty & operational systems
• Optimize apps for performance, scalability & enterprise-grade reliability
• Ensure code quality through code reviews, unit testing & automated CI/CD pipelines
• Mentor junior developers & contribute to technical leadership across mobile projects
• Integrate mobile apps with internal APIs, third-party services (e.g., payment processors, loyalty systems) & enterprise backend systems (ERP, CRM, etc.)
• Participate in architectural decisions & propose improvements to existing systems
• Stay informed on flutter, mobile trends & enterprise application standars

Requirements :

• Strong understanding of Flutter best practices, widget lifecycle & advanced UI development
• Experience working on apps at scale, especially in high-volume, transactional environments (e.g., POS systems, loyalty apps, or food ordering platforms)
• Familiarity with localized storage database & socket based communication between devices
• Familiarity with mobile state management solution (Bloc, Provider, Riverpod, etc.)
• Experience intergrating RESTful APIs, Message broker or other web services
• Proficiency with Git & collaborative workflows
• Working knowledge of platform-specific native code (Kotlin, Swift) in a plus
• Experience with enterprise tools like Firebase, Azure or AWS for mobile backend
• Experience with app deployment to Google Play Store & App App Store
• Bonus : Experience with QR code systems, mobile payments, loyalty/reward intergrations or geolocation-based features & fundamental understanding of mobile graphics