Senior Flutter consultant · Vaala, Finland
Senior Flutter consultant based in Vaala, Finland. I help companies design, build, and publish high-quality Flutter applications for iOS and Android, using Flutter as part of Google’s broader ecosystem.
With Flutter you can build apps for Apple’s iOS and Google’s Android from a single codebase. Or, if you already have an app, I can help make it better.
I work with startups and established companies as a Flutter consultant, either as part of an existing team or as a standalone developer. Flutter development experience since 2021 with over 1,000 hours of professional consulting.
Building production Flutter apps for real clients.
Of professional Flutter consulting work.
One Flutter codebase for both platforms.
From idea to App Store and Google Play.
Three production Flutter apps from three very different worlds: scientific research, workforce management and personal wellbeing. Scroll to see what each one does.
01Research & citizen science
A research app for the University of Jyväskylä. People record birdsong in the field, get an identification for the species and review the result. Every observation is saved with its place and time, giving researchers structured, map-based data.
02Workforce management
A shift-planning and time-tracking app for teams. Employees see their week at a glance, clock in and out, follow their working hours and pick up open shifts, while planners keep everyone informed with built-in messages.
03Health & wellbeing
A calm, playful app that helps people build a daily affirmation habit. Users choose topics, read or listen to their affirmations, keep a mood journal and earn trophies as they keep going.
Let’s talk about what you want to build and how Flutter can take it to both app stores.
Everything you need to take a Flutter app from first prototype to the stores, and beyond.
Flutter Proof-of-concept development and prototyping.
Pixel-perfect UI/UX implementation.
Material and Cupertino design systems.
Firebase integration and backend features.
Accessibility with VoiceOver and TalkBack.
App Store and Google Play publishing.
Store listing marketing screenshots and app icons.
Maintenance, improvements, and scaling.
By specializing exclusively in Flutter, I deliver production-ready solutions with a deep understanding of both the framework and mobile platforms.
Examples of Flutter applications published to official app stores:
As a dedicated Flutter consultant, I focus on clean architecture, maintainability, and platform compliance. My role is to help companies deliver reliable, long-term mobile products.
I join an existing team or own the whole app as a standalone developer.
Clean architecture and platform compliance keep your app easy to maintain and ready for store review.
Flutter turns a single codebase into fast, native-quality apps for mobile, web, and desktop. From tools used on the go to dashboards on the wall, Jarno Tossavainen Apps builds cross-platform applications for every screen in your business:
I am Jarno Tossavainen, a Flutter-focused software consultant operating through my company, Jarno Tossavainen Apps.
By specializing exclusively in Flutter, I deliver production-ready solutions with a deep understanding of both the framework and mobile platforms.
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Contact
If you are looking for a Flutter consultant for your next project, feel free to get in touch.
Send me a message if you want to discuss Flutter consulting or need more information about my services. I'll get back to you as soon as possible.
