Blockchain Development Specialist

1 week ago


Remote, Czech Republic Interexy Full time
About the Role

At Interexy, we're seeking a highly skilled Blockchain Development Specialist to join our team. As a key member of our development squad, you will play a crucial role in designing and implementing a system for working with cryptocurrencies that will partially replace our current infrastructure.

Key Responsibilities:
  • Develop efficient and maintainable code using Node.js, Java Script, Express.js, NestJS, Web3, .NET, and Java.
  • Design and implement separate self-sufficient components.
  • Participate in architectural discussions and technical decision-making.
  • Identify potential technical risks and develop mitigation strategies.
Requirements:

To succeed in this position, you'll need:

  • 4+ years of experience with server-side JS/TS.
  • Solid understanding of TypeScript, JavaScript fundamentals, and internals.
  • Experience with Express, NestJS, or similar frameworks.
  • Flexible approach to different programming languages/technologies.
  • Proven experience using other stacks (.NET/Go/Java/C++, etc.).
  • Strong understanding of asynchronous programming, event-driven architecture, and non-blocking I/O.
  • Hands-on experience with Web3.js or Ethers.js for interacting with Ethereum or other EVM-compatible networks.
  • Understanding of smart contracts.
  • Familiarity with popular blockchains like Ethereum, Binance Smart Chain, or Layer 2 solutions.
  • Expertise in data structures, algorithms, and software design patterns.
  • Solid understanding of different software architectural patterns.
  • Experience with RDBMSes (MySQL/PostgreSQL).
  • Experience in writing complex SQL queries and their optimization.
  • Experience with ORMs.
  • Familiarity with Docker, containerization, and orchestration tools.
  • Strong analytical skills with the ability to think critically and solve complex issues.
  • Proficiency in writing unit tests, integration tests, and end-to-end tests.
Salary

The estimated annual salary for this position is $120,000 - $180,000, depending on experience and qualifications.

About Interexy

We are a company that values innovation, collaboration, and continuous learning. Our team is passionate about developing cutting-edge solutions that make a real impact.



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