Senior Typescript Engineer (Device / SDK) - FinTech / Crypto

1300 - 1500 PLN/ dzień.B2B (netto)
SeniorFull-time·B2B
#331896·Dodano 2 miesiące temu·19
Źródło: Incubly
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Tech Stack / Keywords

TypeScriptTestingSecurityBlockchainGitHubNodeReact NativeSoftware Development

Firma i stanowisko

Incubly supports tech companies and startups in scaling their teams and boosting product development, testing, and deployment. They are working with a French company that is a leader in security and infrastructure solutions for cryptocurrencies and blockchain applications, with a team of over 400 professionals developing products including hardware wallets.


Wymagania

  • At least 5 years of experience in software development, including experience in a Tech Lead role
  • Curious mindset and positive attitude, able to thrive in a highly collaborative environment
  • Strong proficiency in JavaScript and TypeScript
  • Professional fluency in English

Nice to have:

  • Experience with Functional Reactive Programming (e.g. RxJS)
  • Experience working with devices using APDU commands, messaging protocols, and blockchain technologies
  • Experience with Bluetooth or HID communication
  • Previous experience working with embedded systems
  • Open-source contribution experience
  • Strong understanding of SOLID principles
  • Experience with Clean Architecture
  • Experience with GitHub Actions or similar CI/CD tools

Obowiązki

  • Develop and maintain the Ledger Live stack across mobile and desktop applications and its broader ecosystem at Ledger
  • Contribute 100% to open-source projects within the monorepo ledger-live
  • Support modularization efforts by contributing to the Device Management Kit for internal and external usage
  • Maintain and enhance the @ledgerhq/hw-transport-* libraries for secure communication with hardware wallets across multiple channels (U2F, HID, WebUSB, Bluetooth) and platforms (Web, Node, Electron, React Native)
  • Contribute to strategic initiatives such as Clear Sign
  • Develop and improve the My Ledger section for firmware updates and app installation on devices
  • Collaborate closely with Firmware, Product, and other engineering teams
  • Partner with QA to automate and strengthen testing processes
  • Investigate and resolve complex blockchain-related edge cases and bugs

Oferta

  • Agile and friendly atmosphere with non-violent communication and full respect for diversity
  • Possibility to choose onsite work in Łódź, Poland or hybrid work (2-3 days a week in the office)
  • Business trips to Paris approximately once every three months
  • Remuneration on B2B contract: 1300-1500 zł net per man-day
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