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Swift Blockchain Developer

Remote / Online - Candidates ideally in
6300, Zug, Kanton Zug, Switzerland
Listing for: Tangem AG
Remote/Work from Home position
Listed on 2025-11-09
Job specializations:
  • IT/Tech
    Blockchain / Web3
Salary/Wage Range or Industry Benchmark: 80000 - 100000 CHF Yearly CHF 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Tangem is a high-tech company in the blockchain sector was founded in 2017, headquartered in Zug, Switzerland, with branches in North America, Eastern Europe, and APAC.

Tangem started with the idea of bringing digital assets to the masses using a unique combination of a smartcard-based hardware wallet and mobile applications. Company owns and promotes the technology of hardware cold-wallet for digital assets with secure and simple UX in 220 countries today. Our customers enjoy setup time within 1 minute with the ultimate security level for digital assets on their wallet.

Tangem solutions offer multi-support of a growing number of thousands of tokens by a single wallet. SBI Crypto Investment Ltd., the digital asset venture investment company wholly owned by SBI Holdings Inc., has invested $15 million into Tangem in 2019 for mass adoption of blockchain technology.

Responsibilities:
  • Development of Tangem's Blockchain SDK used in mobile application for interacting with different blockchain networks;
  • Active participation in technical discussions and development of new features;
  • Writing unit tests.
  • Ability to ask questions and a desire to improve;
  • Decent knowledge of Swift;
  • Experience with async/await;
  • Knowledge of basic frameworks (Foundation);
  • Object-oriented programming (OOP) skills, understanding of SOLID principles;
  • Familiarity with modern architectural patterns, principles of functional programming, protocol-oriented design;
  • Understanding of Rest API and HTTP principles.
  • Ability to understand code in different languages and replicate it in Kotlin
Nice to have:
  • Published projects on the App Store;
  • Experience with Crypto Kit;
  • Experience designing application architecture and covering the application with tests;
  • Experience with blockchain technologies;
  • Experience in Fin Tech.
What we offer:
  • Stability, development, participation in the future unicorn's growth;
  • We use the latest technologies, no legacy, leveraging Swift

    UI and Combine;
  • Remote work from anywhere in the world, with a schedule aligned with GMT+3;
  • Competitive salary in
    EURO/USDT
    ;
  • 20 working days of paid vacation;
  • Birthday presents;
  • Compensation for the purchase of necessary technical devices for the work;
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