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Braintrust

Senior Flutter Engineer (Europe, Remote)

Braintrust
Slovenia · Full-time · Mid-Senior
Job Description

Location: Remote

Interview process: 2 interviews

About Us:

We’re building a next-generation social platform focused on seamless photo and video sharing. Our team is lean and we have big ambitions. If you’re a highly driven Flutter developer who thrives on ownership and is ready to shape a product from the inside out, we’d love to meet you.

What You’ll Do:

  • Take full ownership of our Flutter mobile application, from architecture to release
  • Work closely with Moritz (CTO) to implement features quickly and efficiently
  • Build, test, and optimize media-heavy user flows (uploading, compressing, storing photos and videos)
  • Integrate with Firebase backend and ensure secure, scalable data handling
  • Lead performance optimization and help set best practices for mobile app development
  • Maintain a high bar for code quality and app responsiveness

What We’re Looking For:

  • 5+ years of mobile development experience, with 3+ years in Flutter
  • Deep experience building and scaling social or media-rich apps
  • Hands-on experience with media handling, compression, and video/image optimization
  • Proficient with Firebase (Auth, Firestore, Storage, Functions)
  • Strong product sense and an ownership mentality—you treat the app like it’s your own
  • Comfortable working full-time or beyond (50-60 hours/week) in a remote, fast-moving environment. This is very important to us.

Why Join Us:

  • Work closely with a very nice CTO who values deep collaboration and who appreciates your work
  • Play a key role in building the early foundation of a new social product
  • Full-time, long-term opportunity with room for growth and autonomy
  • 100% remote with flexible location

Key Skills

Ranked by relevance

firebase flutter storage
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Posted
Jul 11, 2025
Type
Full-time
Level
Mid-Senior
Location
Slovenia
Company
Braintrust

Industries

Technology Information Internet

Categories

Engineering Information Technology

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