Backend Tech Lead - Crypto (Node/TS)

REMOTE GLOBAL | TANGEM

Location: Remote from anywhere in the world; working schedule aligned with GMT+3

Salary: Competitive salary in EUR or USDT

Company

Tangem is a blockchain-sector technology company developing hardware cold wallets and mobile applications for secure digital-asset management.

What you will do

• Lead the technical development of Tangem Express, a crypto exchange aggregator integrated into Tangem Wallet.
• Own backend architecture, code quality, technical decisions, and scalability improvements.
• Design and maintain integrations with 12+ external crypto exchange providers.
• Improve platform availability, reliability, performance, and fault tolerance.
• Investigate production incidents, including provider failures, and resolve complex technical issues.
• Guide a team of four backend engineers through planning, prioritization, code reviews, and engineering standards.

Requirements

• Strong commercial backend development experience with Node.js and TypeScript.
• Previous experience as a Tech Lead or Senior/Staff Backend Engineer with ownership of complex systems.
• Deep knowledge of software architecture, design principles, microservices, and clean architecture.
• Experience with crypto systems or transaction-processing platforms, including crypto swaps, exchanges, or crypto service providers.
• Experience integrating third-party APIs with failure handling, timeouts, retries, and error recovery.
• Strong PostgreSQL and SQL skills, high-load system experience, application security knowledge, production troubleshooting, and unit and E2E testing experience.

Nice to have

• Experience with cryptocurrency exchanges, swap aggregators, or crypto wallets.
• Understanding of crypto swaps, exchange routing, and liquidity providers.
• Experience integrating centralized or decentralized exchange APIs (CEX/DEX).

Culture & Benefits

• Remote work from anywhere in the world with a GMT+3-aligned schedule.
• Unlimited vacation and paid sick leave.
• Compensation for necessary technical devices.
• Opportunity to participate in the growth of a blockchain technology company.
• Birthday presents.

Feel free to send you CV to Ivan - vkolesnikov@tangem.com