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 and 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 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.

Role responsibilities

• 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.

Must have qualifications

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

• 7+ years of total development experience, with 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.
• Experience developing native applications (Android/iOS) will be a plus. 
• 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.

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 a 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. 

Your application process

Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.

⚠️ Beware of recruitment fraud!

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know. 

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.

Join Iterable in Portugal, where innovation meets opportunity! At Iterable, you’ll thrive in a values-based community with competitive salaries, exceptional benefits, and continuous learning opportunities. Our expansion into Portugal is a game-changer, offering you the chance to shape our brand and bridge the gap between technical and marketing teams.

How you will make a difference

As an Android Software Engineer II on the SDK team at Iterable, you’ll contribute to our Android and Flutter SDK and related mobile integration features that enable customers to send billions of personalized messages to people around the world each year. This includes adding new features to our existing integration channels such as SMS and Push Notifications, and helping build out support for new mobile and device channels we may add in the future (for example Roku, Messenger, WhatsApp, Android Auto, and others).

You’ll work closely with our Product team to refine product features and determine the feasibility of upcoming projects, and you’ll collaborate with teams such as Delivery and User Data Infrastructure to ensure the products and services the mobile team builds remain fast, reliable, and scalable.

One of our core values is a growth mindset, and Iterable is a company where everyone can grow. If this role excites you, we encourage you to apply—we value applicants for the skills and potential they bring beyond a job description.

You’ll get to

• Own Android SDKs and associated functionality, ensuring they are robust, intuitive, and integrate cleanly with our Flutter SDK and other cross-platform environments.
• Influence technical strategy to build SDKs and integrations mobile developers will love, with clear APIs, reliable behavior, and thoughtful support for Flutter use cases.
• Drive team discussions on system architecture and component design, with an eye toward cross-platform usage patterns (native + Flutter).
• Design intuitive and performant APIs that feel natural to Android and Flutter developers alike.
• Participate in code reviews and help uphold high standards for code quality, testing, and documentation.
• Ship code frequently in an iterative environment, balancing quality and speed.
• Collaborate with a small, nimble team of engineers that values ownership, autonomy, and learning.
• Partner with Product and other Iterable teams to deliver on the team’s technical vision for mobile and cross‑platform channels.
• Participate in an on-call rotation to help support our customers (currently about once per quarter).

We are looking for people who have

• B.S. or M.S. in Computer Science, or equivalent practical experience.
• 3+ years of experience in mobile development, with a strong track record of building and shipping Android applications or SDKs (SWE II level).
• Strong knowledge of Android and its core frameworks, along with solid understanding of mobile platforms and constraints.
• Expert-level proficiency in Kotlin or Java, and modern Android tooling and libraries.
• Solid computer science fundamentals (threading, memory management, performance, and testing best practices).
• Experience building and maintaining public-facing APIs and/or SDKs, ideally for external developers.
• Hands-on experience with Flutter in a production or near‑production context (for example, shipping features in a Flutter app, building a Flutter plugin, or integrating a native Android SDK into a Flutter codebase). This experience is strongly preferred and will be used day‑to‑day in the role.
• Passion for learning and continuously improving yourself, your team, and the developer experience you create.

Bonus points

• Examples of shipped applications or SDKs on the Google Play Store.
• Experience with mobile build systems and automation (e.g., Gradle, CI pipelines).
• Experience with testing frameworks for mobile and/or Flutter (unit, integration, snapshot, end‑to‑end).
• Involvement in the local or global Android and/or Flutter developer community (meetups, open source, speaking, writing, etc.).
• Experience deploying and operating services on AWS or another major cloud provider.
• Proficiency with other cross-platform development frameworks such as React Native; Flutter remains our strong preference for this role, but adjacent experience is valuable.

While Flutter experience is highlighted as a strong preference and key part of this role, we’re always excited to speak with Android engineers who can demonstrate the ability to ramp quickly on new frameworks and tooling.

Perks & Benefits (Portugal)

• Competitive salaries & meaningful equity
• Private Medical Insurance
• Life/Risk Assurance
• Meal Allowance: 8.55€ per day
• Community Days (days for us to give back to the community) 
• Paid Annual Leave (22 days)
• Global Lifestyle Reimbursement Account
• Paid Sabbatical
• Complete laptop workstation