Behind the apps: The story of one Flutter team

Efficient technology backed by experience

Flutter’s appeal lies in its fast development pace and ability to support multi-platform delivery from a single codebase. For Moi, it enables a six-person team to manage and develop four applications – for iOS, Android, and Web – simultaneously.

– When I became team lead, our team size doubled, and so did the number of applications. With native technologies, we would’ve likely needed a much larger team, says Jussi-Tapio Lamminheimo (Jusu), the team lead.

Starting with Flutter’s early days, this team has been ahead of the curve – building one of the first commercial Flutter for Web applications, which was even showcased at a Google meetup.

– Flutter helps us streamline app management through one codebase. It also boosts team satisfaction, because developers genuinely enjoy working with it, Jusu adds.

Building a culture of ownership, openness and agility

The team includes developers Alex Lindroos, Hung Nguyen, Mikael Gousetis, and Iiro Pelttari, along with designer Petri Pystynen. While Jusu provides guidance, daily collaboration is driven more by shared ownership and results than hierarchy.

– We have a flat structure. If we have different opinions, we talk them through – and if needed, we vote. Everyone has a say, Alex notes.

Instead of following agile methods by the book, the team has crafted a workflow that suits their rhythm:

– We follow sprints and respond quickly to evolving needs, Mikael explains.

– It’s agile, but in our own way – we’ve taken the parts that serve us best, Iiro adds.

This flexibility thrives on trust, feedback culture, and transparency. The team proactively supports one another, tackles issues collaboratively, and values constructive feedback – making continuous improvement a natural part of their everyday work.

– We don’t blame – we solve things together, Hung explains.

– We’ve built deep trust. There’s psychological safety to experiment and grow, Iiro says.

Intentional team-building yields long-term results

What makes this team’s dynamic exceptional is not luck; it’s intent. Over the years, they’ve invested in team-building both during and beyond working hours: sharing knowledge, solving problems together, and strengthening interpersonal trust through openness and honest communication.

While not every team becomes a tightly bonded unit overnight, the practices behind this one – psychological safety, shared goals, respect for one another’s strengths, and mutual accountability – are replicable and valuable for any project team. And fostering this kind of team culture is exactly what we always aim for at Rebel.

In addition to investing in team-building, we also prioritise employee happiness and retention. On average, our team members stay with us for nearly seven years – a rare figure in our industry, and a key reason why strong, lasting team dynamics like these can truly develop.

A partnership built on trust and continuity

Working closely with the same customer over time deepens mutual understanding. Jusu and the team know Moi’s business environment, values, and communication styles inside out, which leads to faster decisions, stronger alignment, and better outcomes.

– Jusu understands Moi’s needs intuitively. That clarity helps all of us deliver more efficiently, Petri says.

Despite balancing new development with app maintenance across four platforms, the team maintains consistently high morale and delivery quality. Their openness to collaboration and shared accountability is a cornerstone of the partnership’s success.

– We’ve been working together for years, and the chemistry we’ve built enhances both speed and quality. We can tackle anything together, Jusu notes.

From early adoption to streamlined excellence

From the early days of Flutter to today’s mature, multiplatform solutions, this team has evolved with the technology, always seeking better ways to deliver value.

– Back then, we had to invent our own solutions. Now, we’re focused on refining the user experience and performance, Hung shares.

– Flutter gives us the flexibility and consistency we need across platforms. Our users get a native-like experience, and we work from one codebase, Mikael and Petri agree.

It’s not just about the tools – it’s about the team

At Rebel App Studio, we believe that great digital products are the result of great teams. Technology like Flutter enables efficiency, but it’s the way teams collaborate, give feedback, and take ownership that truly makes a difference.The team behind Moi’s applications demonstrates how intentional team-building, trust, and shared purpose can be turned into long-term value, not just for the team but for the customer too.