Senior Flutter Engineer
Valtech · Portugal - Remote · Remote
Posted Sep 16, 2026
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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.
The opportunity
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.
We are proud of:
The work we do and the innovation we drive
Our values of share, care a nd dare
A workplace culture that fosters creativity, diversity and autonomy
Our borderless, global framework, which enables seamless collaboration
The role
Valtech is looking for a Senior Flutter Engineer to help design and build high-quality, scalable native 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 engineer, you’ll be expected to take ownership of features from concept to store release, contribute to architectural decisions, ensure code quality, and mentor junior team members. You will also use AI coding agents as a core part of your daily work and help define how our mobile teams use them in client projects. Your expertise will help elevate engineering practices and strengthen Flutter adoption across projects.
You will thrive in this role if you are:
A senior engineer who owns outcomes, makes pragmatic tradeoffs and can defend them to peers and clients
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 diagnose root causes in production
Go below the Flutter layer when needed: platform channels, FFI, native SDK integration
Work with AI coding agents daily and define team practices for them
Must have qualifications
To be considered for this role, you must meet the following essential qualifications:
8+ years of total software development experience
Minimum 4+ years of hands-on experience with Flutter and Dart in production, including apps with real users at scale
Strong understanding of object-oriented programming and modern development practices
Experience writing unit widget and integration…