Flutter Developer

Unlimit

Belgrade permanent

Posted: October 23, 2025

Required Skills

Job Description

About Unlimit

Unlimit is the global fintech powerhouse behind the world’s largest proprietary payments infrastructure.
Founded in 2009, Unlimit operates across 17 global offices with 700+ experts, seamlessly integrating 1,000+ payment methods into a single platform. From London to São Paulo, we empower businesses to scale across borders with a unified suite of financial tools — including payment processing, alternative payment methods, multicurrency business accounts, card issuing, banking-as-a-service, and crypto on- and off-ramps.
Our mission is to break down financial barriers and enable seamless money movement across borders. We give forward-thinking businesses the tools to accept, send, and manage payments effortlessly, wherever they operate.

We are looking for an experienced Senior Flutter Developer to join our product team and build a brand-new B2B banking application for the European and Asian markets. Your role will be crucial in expanding functionality, and ensuring high product quality from day one.

What You'll Be Doing::
• Develop, plan and launch new features for our clients
• Participate in the Code Review process
• Use modern approaches, AI tools and technologies
• Interact with designers, project and product managers, developers, analysts and testers

Tech Stack::
• Flutter + Dart (null safety)
• Modular and clean architecture
• State management: Bloc (Cubit)
• Navigation: go_router
• Integrations: Firebase, APNS, Sentry
• Network: REST API, WebSocket
• Native code: platform channels, custom plugin development with Kotlin and Swift as needed
• CI/CD: Fastlane, GitLab CI

Qualifications You Bring::
• 4+ years of experience in mobile application development using Flutter
• Strong knowledge of Dart programming language and Flutter framework
• Experience with integrating third-party libraries and APIs into mobile applications
• Strong understanding of software development principles, design patterns, and best practices
• Excellent problem-solving, analytical, and communication skills
• Ability to work independently and as part of a team in a fast-paced environment

Join Unlimit Team now!

Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.

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