Senior Flutter Engineer

You'll work on the mobile app for an online travel agency representing 400+ luxury hotels across 75 countries through its own booking ecosystem. The app covers flexible room search and filtering, booking and payment flows, a shopping cart, and loyalty programs that combine hotel discounts with an internal points-based rewards system. It's under continuous development to keep engagement high and deliver a reliably premium experience for guests booking upscale stays. On the technical side, the app is built in Flutter with WebView-based screens and integrates with a CMS, Leonardo for image management, and hospitality platforms like Salesforce and SynXis.

You Have

• 5+ years of commercial software development experience, with strong hands-on work in Flutter and Dart
• Deep proficiency in Flutter and Dart — application architecture, state management, widget composition, and performance optimization
• A solid grasp of asynchronous programming in Dart, including Futures and Streams
• Experience integrating REST APIs, handling JSON serialization, and managing API-related errors and edge cases
• A track record of shipping and maintaining production-grade mobile applications
• Familiarity with mobile CI/CD pipelines and automated build/deployment processes
• Experience writing and maintaining unit, widget, and/or integration tests for Flutter apps
• A good handle on mobile performance, debugging, logging, and troubleshooting
• Experience with WebView-based functionality and integrating web content into mobile apps
• Strong problem-solving skills and the confidence to investigate and resolve complex issues independently
• A habit of taking ownership of your tasks, making sound technical calls, and flagging risks early
• Experience working in a collaborative Agile team
• Hands-on use of AI coding assistants (Cursor, GitHub Copilot, or similar) in daily development
• Genuine interest in AI-assisted engineering — using it to improve development, testing, debugging, documentation, and productivity
• Upper-intermediate English, spoken and written, with confidence communicating with international teams and clients

Would be a plus

• Experience with mobile apps in travel, hospitality, e-commerce, or booking
• Experience with payment flows, booking systems, loyalty programs, or other transactional features
• Experience integrating mobile apps with CMS platforms and third-party enterprise systems
• Familiarity with Salesforce, SynXis, or similar hospitality/travel tech integrations
• Experience with image/content management platforms such as Leonardo or similar
• Understanding of WebView-based hybrid app architectures
• Experience with Firebase or similar mobile backend/analytics services
• Experience with automated release processes for App Store and Google Play
• Awareness of application security and best practices for protecting user and payment data
• Experience building AI-powered features or integrating AI pipelines/APIs into a product — or using AI beyond code generation, e.g., for testing, debugging, technical analysis, documentation, or planning

You Are Going To

• Build and ship new features for the Flutter mobile app
• Help evolve search, booking, payment, loyalty, and other customer-facing functionality
• Integrate mobile functionality with REST APIs and external services
• Keep existing functionality stable and reliable as you maintain and improve it
• Investigate and resolve production issues and technical defects
• Take part in support, troubleshooting, and ongoing app maintenance
• Write and maintain automated tests to keep new and existing functionality solid
• Work closely with QA, Solution Architecture, frontend, and project management throughout the development lifecycle
• Weigh in on architecture and implementation decisions in technical discussions
• Spot opportunities to improve performance, maintainability, and the development process itself
• Bring in modern engineering practices and AI-assisted tools wherever they genuinely help
• Communicate progress, risks, and possible solutions clearly to technical and non-technical stakeholders alike