Mobile Developer Flutter (m/f/x)

The Position

TikFinity Mobile runs on more than 500,000 phones. Creators use it to fire alerts and text-to-speech for their TikTok LIVEs straight from their pocket, and when it fails, it fails in front of a live audience. You build the app that doesn't.

We work AI-first. You build with Anthropic's Claude as a daily tool, which takes care of the routine work and leaves you the parts that need judgment: state, performance, background execution, and the edge cases that only show up when thousands of viewers send gifts at once.

You won't be alone with it. You join a larger development team, work day to day with the Product Owner who owns the mobile app, and share the codebase with a second mobile developer. Design hands you finished screens; your job is to make them real on both platforms.

Duties

• Build and ship features for TikFinity Mobile in Flutter, on iOS and Android

• Handle store releases together with your fellow mobile developer: submissions, versioning, crash monitoring

• Turn finished screen designs into screens that feel right on both platforms

• Keep the app fast and reliable while a LIVE is running: live events, audio, background operation

• Work with the Product Owner and with developers from other product areas

• Use Claude to speed up implementation, testing, and refactoring

Division

Requirements

• Several years of mobile development experience with shipped Flutter apps and real store releases behind you

• Solid Dart, plus an understanding of the native iOS and Android layers underneath

• You care about performance on mid-range devices, because that's what our users hold

• Quality awareness and independent problem solving: you find the bug before support does

• Fluent English, written and spoken

• Based in Germany or Austria, or within two hours of that time zone

Great to have

• Experience with real-time features: WebSockets, push, live data, audio

• Basic mobile screen design skills for the cases where no finished design exists

• A gamer, streamer, or content creator background

• Experience with cloud providers like AWS or Hetzner

• German language skills (part of the team works in German)

What we offer

We work fully remote with flexible hours, on equal footing, in a diverse international team. You ship to half a million devices, your work is visible in a live stream minutes after release, and you have short paths to decisions. The salary is competitive; details below.

Compensation

Gross salary for this role ranges from €60,000 to €70,000 per year (full-time). For roles based in Austria, this is an all-in contract. Depending on country and type of employment, we are open to negotiate.

About us

StreamTV
StreamTV is the company behind several independent projects. What connects us is that we all build for creators. Beyond that, every project operates on its own with its own pace.

Reecorder
Founded in 2026, Reecorder keeps what used to vanish the second a creator went offline. Creators give consent once, then every stream gets recorded in the background, with no plugin and nothing running on their machine. Consent first, always. What used to be a one-off moment becomes something creators can reuse and earn from.

TikFinity
TikFinity was already a name before it came to us in 2025. Since then, we've been pushing it further every day: product, marketing, community. More than a million active creators run their streams with it, with interactive overlays, widgets, and alerts that turn their TikTok LIVE into an interactive game every viewer wants to play. We know what TikTok creators need because our community has been telling us from the start.

OWN3D
For creators all over the world, OWN3D is where they bought their first overlay. That was 2017, and OWN3D.tv is still going strong. Then came OWN3D Pro in 2020, a multistreaming tool for Twitch, YouTube, and Kick that's grown into something a lot bigger than it started as. Overlays, alerts, widgets, and a Scene Builder that does the tech and design part so creators don't have to. We've grown up alongside those creators, and the goal hasn't changed: help talented creators grow.