Senior Android Developer (Freelance)

Quick Facts

• Role: Senior Android Developer (Freelance)
• Engagement: 6–12 month project (possible extension)
• Work mode: 100% remote
• Rate: up to 135 PLN/h

Description

Senior Android Developer freelancers are needed for a client mobile team across two areas: Mobile Platform / Super App and Mobile Payments. You will implement modular Android architecture using Native Shells, Native Modules, WebView, and server-driven UI, and build secure in-app payments with payment operators, Google Pay, card tokenization, and SCA/PSD2. The project emphasizes CI/CD, release processes, and integration with native device features.

Responsibilities

• Mobile Platform / Super App
  • Implement architecture using Native Shells, Native Modules, WebView, and Server Driven UI
  • Contribute to modularization that enables multiple teams to work in parallel
  • Follow technical standards, CI/CD, and release processes
  • Implement integration with native device features
• Mobile Payments
  • Implement in-app payments
  • Integrate with payment operators and Google Pay
  • Implement card tokenization and SCA/PSD2
  • Support transaction security and monitoring
  • Support subscription and recurring payment processes

Requirements

• Senior-level experience in Android development (Kotlin)
• Fluent English
• Fluent Polish

Benefits

• 100% remote flexibility
• Dev-friendly processes (Continuous Integration, Code Review) aligned with Agile
• Diverse projects across industries (fintech, healthcare, insurance, education)
• Growth through work with experts and continuous development of hard and soft skills
• Knowledge sharing sessions and internal knowledge base