Senior Flutter Developer (Full Remote | B2B Contract)

Scale3c

Vilnius, Vilniaus, Lithuania Remote internship

Posted: April 30, 2026

Quick Summary

To be filled by a senior Flutter Developer, you should have experience in Flutter development with a strong focus on building scalable high-quality products. You should be able to work on multiple client projects with a mix of fintech and logistics industries, and be able to adapt to different currencies and time zones. This is a senior role, and you should be able to work independently with minimal supervision.

Required Skills

Job Description

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 logistics – building real-world applications used by end customers.

What You'll Do::
• Build and maintain cross-platform mobile applications using Flutter

• Collaborate with clients and internal teams to translate requirements into solid technical solutions

• Take ownership of features end-to-end – from architecture decisions to delivery

• 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 communication skills

Nice to Have::
• Experience in fintech or regulated industries

• Native iOS/Android development background

What We Offer::
• 30–40 €/hour (B2B/Freelance contract)

• Full remote, full-time (40h/week)

• Varied project portfolio across different industries and domains

• Simple hiring process – just 2 interviews, no take-home tasks

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