Senior Flutter Mobile Developer (Add-to-App Architecture) – Digital Retail Platform

Jobgether • Brazil

Remote

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AI Summary

Lead the development of a high-performance Flutter-based mobile app for a digital retail ecosystem, integrating with payment terminals, printers, and barcode scanners. Own the mobile experience for point-of-sale, inventory, and AI-driven features while collaborating with product and backend teams in a fully remote, international environment. Focus on offline-first architecture, performance optimization, and seamless checkout experiences with 5+ years of Flutter expertise.

Key Highlights

Own and develop a mission-critical Flutter mobile app for a digital retail platform used in fast-paced store environments

Combine Flutter with native Android/iOS capabilities using Add-to-App architecture for hardware integrations (payment terminals, printers, scanners)

High ownership in a fully remote, international team with autonomy and focus on offline-first, reliable, and high-performance mobile experiences

Key Responsibilities

Design and build a Flutter-based mobile app for a digital retail ecosystem, integrating with payment terminals, receipt printers, and barcode scanners

Develop and maintain Flutter modules using Add-to-App architecture for seamless Dart-native Android/iOS communication

Implement offline-first capabilities using SQLite and optimize application performance for reliability, speed, and crash resistance

Collaborate with Product and Backend teams to define requirements, integrate REST APIs with Java microservices, and deliver features for POS, billing, inventory, B2B commerce, and AI assistance

Create pixel-perfect interfaces from Figma designs, write integration tests (especially for hardware-sensitive workflows), and establish mobile development best practices

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Technical Skills Required

Flutter Dart Mobile State Management

Benefits & Perks

Competitive gross compensation of approximately €36,000–€48,000 annually (€3,000–€4,000/month)

Fully remote position with flexible working hours and collaboration within CET timeframe

High autonomy, international remote work environment, and modern collaboration tools

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Nice to Have

Professional fluency in Spanish

Experience with AI-powered user assistance

Proven expertise in native Android (Kotlin) or iOS (Swift) development

Job Description

This is a high-impact opportunity to own the mobile experience of a digital retail ecosystem used in demanding, real-world store environments.You’ll build a high-performance mobile application connecting directly with payment terminals, printers, barcode scanners, and other specialized hardware.The role goes beyond conventional app development, combining Flutter with native Android/iOS capabilities through an Add-to-App architecture.You’ll help deliver critical features spanning point-of-sale, billing, inventory, banking, B2B commerce, and AI-powered user assistance.

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