Mobile Developer, Flutter – Senior

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🕒 April 14

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TRACK&FIELD

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1988

🛒 Retail

🛍️ eCommerce

⚽ Sports

Retail • eCommerce • Sports

TRACK&FIELD is a Brazilian sportswear retailer and lifestyle brand operating physical stores, franchises, experience stores and an e-commerce platform, offering athletic apparel, accessories and related experiences. The company emphasizes product design and technology, sustainability, diversity and wellbeing, and maintains investor relations and corporate governance programs.

📋 Description

• Develop, enhance and maintain the TFSports and TFSports Trainer apps (iOS and Android) using Flutter/Dart, ensuring high performance, stability and an excellent user experience; • Work in a continuous delivery model with short cycles (tasks of 1–2 days), making frequent commits and small, focused, high-quality PRs; • Use generative AI (Claude and similar) as a technical copilot in daily work, supporting development, debugging, documentation and refactoring; • Perform critical review of all code (AI- or human-generated), ensuring high standards of quality, readability, efficiency, edge-case handling and security; • Actively participate in code reviews, architecture decisions and agile ceremonies, contributing to the team’s and product’s technical evolution; • Ensure the quality and sustainability of the codebase by applying sound architecture practices (SOLID, Clean Architecture, DI) and organized code structure; • Work on integration with REST APIs, ensuring robustness in consumption (error handling, retries, timeouts and defensive programming); • Lead and evolve the mobile testing strategy (unit, widget and integration tests), ensuring reliable deliveries; • Continuously work on performance optimization, including rendering analysis, memory management and improving the user experience; • Handle the full mobile release cycle, including versioning, signing, environment management (flavors) and publishing to the stores; • Contribute to the evolution of CI/CD pipelines, test automation and continuous release processes; • Keep technical documentation up to date (READMEs, ADRs, Confluence), promoting knowledge sharing and traceability; • Collaborate with product and backend teams to ensure consistency in API contracts and a seamless user experience.

🎯 Requirements

• Proven experience developing mobile applications, with strong expertise in Flutter/Dart in production environments; • Experience publishing and maintaining apps on the App Store and/or Google Play, including version management and production fixes; • Ability to work in short delivery cycles with organization, autonomy and a focus on continuous delivery; • Active use of generative AI tools in development (such as Claude, ChatGPT or GitHub Copilot) — mandatory requirement; • Strong command of Flutter/Dart in production, with emphasis on performance, architecture and scalability; • Ability to structure applications following engineering best practices (Clean Architecture, SOLID, DI); • Consistent experience integrating with REST APIs, with an understanding of contracts, resilience and data quality; • Strong knowledge of mobile testing (unit, widget, integration) and a quality-driven mindset; • Experience with the full mobile development lifecycle, including publishing and production support; • Ability to work with generative AI in development, crafting good prompts and critically evaluating AI outputs.

🏖️ Benefits

• N/A