Senior Flutter Engineer, Portugal

Valtech; Portugal; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Remote & hybrid options

International mobility

Learning & development programs

Job summary

Valtech is seeking a Senior Flutter Developer to design and build high-quality mobile and web apps using Flutter. You’ll own features from concept to deployment, mentor juniors, and help shape Flutter adoption across projects.

You'll collaborate with product managers, designers, and engineers in an Agile environment, with remote/hybrid options and international opportunities. A senior role focused on scalable solutions and code quality.

Qualifications

• 5+ years of total software development experience.
• Minimum 2+ years of hands-on Flutter and Dart.
• Strong OOP and modern development practices.
• Experience writing unit and integration tests.
• Familiarity with Riverpod, BLoC or Provider.
• Experience with RESTful APIs and async data flows.
• Understanding of responsive UI principles and mobile design.
• Solid knowledge of Git and CI/CD workflows.
• Experience with local storage (Hive, SQLite) and performance optimization.
• Knowledge of architectural patterns (MVVM, Clean Architecture).
• Familiarity with Agile methodologies and cross-functional team collaboration.

Responsibilities

• Develop cross-platform applications using Flutter for Android/iOS
• Translate product requirements and UI designs into fully functional features
• Write clean, testable, and maintainable code following best practices
• Participate in code reviews, offer constructive feedback, and support team learning
• Collaborate with UI/UX designers to create seamless user experiences
• Integrate apps with backend APIs and services
• Monitor application performance and troubleshoot issues
• Stay current with Flutter/Dart ecosystem updates and suggest improvements

Skills

Flutter

Dart

OOP & modern practices

Unit tests

Integration tests

Riverpod

BLoC

Provider

RESTful APIs

Async data flows

Responsive UI

Git

CI/CD

MVVM

Clean Architecture

Agile

Tools

Hive

SQLite

Job description

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience.

At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries.

Valtech is looking for a Senior Flutter Developer to help design and build high-quality, scalable mobile and web applications using Flutter. You will work closely with product managers, designers, and fellow engineers to bring modern, responsive digital experiences to life. As a senior developer, you’ll be expected to take ownership of features from concept to deployment, contribute to architectural decisions, ensure code quality, and mentor junior team members. Your expertise will help elevate engineering practices and strengthen Flutter adoption across projects.

You will thrive in this role if you are:

• A curious problem solver who challenges the status quo
• A collaborator who values teamwork and knowledge-sharing
• Excited by the intersection of technology, creativity and data
• Experienced in Agile methodologies and consulting (a plus)

Role responsibilities

• Develop cross-platform applications using Flutter for Android/iOS
• Translate product requirements and UI designs into fully functional features
• Write clean, testable, and maintainable code following best practices
• Participate in code reviews, offer constructive feedback, and support team learning
• Collaborate with UI/UX designers to create seamless user experiences
• Integrate apps with backend APIs and services
• Monitor application performance and troubleshoot issues
• Stay current with Flutter/Dart ecosystem updates and suggest improvements

Must have qualifications

To be considered for this role, you must meet the following essential qualifications:

• 5+ years of total software development experience
• Minimum 2+ years of hands-on experience with Flutter and Dart
• Strong understanding of object-oriented programming and modern development practices
• Experience writing unit and integration tests
• Familiarity with state management solutions (e.g., Riverpod, BLoC, Provider)
• Experience integrating RESTful APIs and handling asynchronous data flows
• Understanding of responsive UI principles and mobile design guidelines
• Solid knowledge of Git and CI/CD workflows
• Experience with local storage (e.g., Hive, SQLite) and performance optimization
• Knowledge of architectural patterns (MVVM, Clean Architecture, etc.)
• Familiarity with Agile methodologies and cross-functional team collaboration

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn.

Commitment to reaching all kinds of people

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all.

The benefits

This is aPermanent position based in Portugal.

Beyond a competitive compensation package, 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

Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process.

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world.

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more.

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate.

Are you ready to create what’s next? Join us.