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Tangem

Secure NFC crypto self-custody cards

Android Developer

Mobile EngineeringConfirmed live in the last 24 hours
Full-timeRemote in SwitzerlandNo salary listed

About the Job

Requirements

  • At least 5 years of experience in a similar position.
  • Strong knowledge of Kotlin.
  • Understanding of multithreading and asynchronous programming principles, with experience in Coroutines and Kotlin Flow.
  • Strong knowledge and experience with Jetpack Compose.
  • Good knowledge of Android SDK and Jetpack libraries.
  • Experience refactoring legacy code.
  • Understanding of SOLID principles.
  • Understanding of mobile application security principles.
  • Understanding of modern architectural patterns (MVVM and MVI), their differences, and functional programming principles.

Responsibilities

  • Develop Tangem's core mobile application.
  • Work with the company's public libraries (SDK).
  • Participate in discussions of technical requirements, design, and development of new functionality.
  • Write unit tests.

About the Company

Tangem

Secure NFC crypto self-custody cards

Tangem provides secure, customizable NFC-powered cards that act as self-custody instruments for cryptocurrencies and other digital assets. The cards enable users to manage keys and access assets via contactless NFC, leveraging asymmetric cryptography and proprietary firmware. A Kudelski Security audit underpins the security and privacy of the system. Unlike typical software-only wallets, Tangem’s hardware cards offer a tangible, offline-friendly way to hold digital assets, targeting individuals, financial institutions, and tech companies, and are sold directly online or through distributors. The company positions itself by removing middlemen and reducing infrastructure complexity to create a simpler, secure ecosystem for digital asset management, including CBDC-related solutions and secure identity verification. Overall, Tangem aims to make asset self-custody safer and more accessible for a wide audience.

Company size
51-200
Company stage
Early VC
Total funding
$23M
Headquarters
Zug, Switzerland
Founded
2017

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