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Lead Flutter Engineer

Portugal, Lisbon · Job Posted March 22, 2026
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Job Description

Valtech is looking for a Flutter Lead Developer to shape our cross-platform mobile and web application landscape. In this role, you will own the technical strategy, architecture, and delivery of scalable, high-performing Flutter applications that power digital experiences across our business. Working at the intersection of design, development, and product, you’ll lead a cross-functional team of developers and testers, define best practices, and transform ideas into elegant, responsive, and maintainable apps. You will play a key role in driving technical excellence and Flutter adoption, while mentoring others and contributing to a culture of innovation and quality.

Job Responsibility

  • Lead Flutter mobile app development across Android / iOS
  • Focus on best engineering practices for quality, clean code, testing & observability
  • Architect scalable, maintainable, and performant mobile solutions
  • Mentor and guide Flutter developers
  • conduct code reviews
  • Collaborate with product, design, and backend teams
  • Ensure code quality, testing, and CI/CD integration
  • Stay updated with Flutter/Dart trends and best practices
  • Manage technical risks and project timelines

Requirements

  • 7+ years of total development experience
  • at least 3+ years in Flutter development
  • Strong knowledge of data structures, modern design patterns, and best practices in object-oriented software engineering
  • The ability to write clean and neat code that is easy to maintain
  • The ability to cover all (or almost all) your work with tests
  • Understanding the principles of user interface design
  • Expert knowledge of the Dart language
  • Knowledge of development and configuration tools (Git, Jira, Jenkins, etc.)
  • Experience with RESTful APIs to connect to back-end services
  • Knowledge of modern architectural patterns in mobile development (BLoC, MVVM) and the principles of functional programming
  • Understanding the principles of DRY and SOLID principles
  • Experience in creating multi-module projects
  • Advanced level of English, both written and verbal

Nice to have

Experience developing native applications (Android/iOS) will be a plus

What we offer

  • Flexibility, with remote and hybrid work options (country-dependent)
  • Career advancement, with international mobility and professional development programs
  • Learning and development, with access to cutting-edge tools, training and industry experts

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