Companies Scale3c Senior Flutter Developer (b2b/freelance)

About the role

Scale3c · Hybrid
Scale Tech is a development agency partnering with clients across different industries to build high-quality digital products. We work with a range of exciting clients – from fintech to logistics – and we're growing our team of senior engineers to meet increasing demand.

About the Role

We're looking for a Senior Flutter Developer to join our team on a full-time basis (40h/week) and contribute to multiple client projects. You'll work across different industries – including fintech and digital banking – building modern mobile applications used by real end customers.

One of the key projects involves building a brand-new mobile application based on an already existing web platform. The product focuses on investment and portfolio management features, including secure authentication, portfolio overview, stock tracking, payments integration, and real-time financial data connectivity.

The first MVP is planned for delivery within 4–5 months, after which the product roadmap continues with additional features and long-term development plans. You may also contribute to other mobile modernization and redesign projects within the fintech space.

What You'll Do:

  • Build and maintain cross-platform mobile applications using Flutter
  • Collaborate with clients and internal teams to translate requirements into scalable technical solutions
  • Take ownership of features end-to-end – from architecture decisions to delivery
  • Integrate APIs, third-party services, and real-time data solutions
  • Contribute to code reviews and uphold engineering standards across projects
  • What We're Looking For:

  • 5+ years of hands-on experience with Flutter & Dart
  • Strong grasp of mobile app architecture and state management
  • Experience integrating REST APIs and third-party services
  • Ability to work independently in a fully remote environment
  • Good English and Lithuanian communication skills
  • Nice to Have:

  • Experience in fintech or regulated industries
  • Native iOS/Android development background
  • Experience working on MVP-stage products
  • What We Offer:

  • €30–40/hour (B2B/Freelance contract)
  • Full remote, full-time (40h/week)
  • Varied project portfolio across different industries and domains
  • Long-term collaboration opportunities
  • Simple hiring process – just 2 interviews, no take-home tasks
  • Ready to apply to Scale3c?
    Apply to Scale3c

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