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Bucharest, Romania, Hybrid

$35k - $65k

Blockchain Solutions Firm

Web3 Infrastructure

Backend Developer

As a Backend Developer with our client, you'll play a pivotal role in pioneering the development of an innovative cross-border, compliance-oriented payment blockchain. Responsibilities include enhancing transaction security, efficiency, and compliance through advanced blockchain infrastructure.

Key tasks involve:

- Managing databases such as MySQL/PostgreSQL, MongoDB, and Redis.
- Developing and maintaining backend systems using NodeJS.
- Writing asynchronous code and creating REST-API, WS/WSS applications.
- Optimizing application performance and scalability through efficient algorithms, caching mechanisms, and database optimizations.
- Working with Git, Gitflow, and understanding others' code.
- Implementing security best practices and conducting code reviews to ensure reliability and maintainability.


- Ability to write clean, efficient code and conduct code reviews.
- 4+ years of experience with NodeJS.
- Proficiency in database management and asynchronous processes.
- Understanding of security best practices.
- Attention to detail and strong problem-solving skills.
- Upper Intermediate level of English.

Added Bonus:

- Experience with TypScript and DevOps tools like Docker and CI/CD.
- Understanding of (micro)service architecture development.
- Familiarity with Web3 & Blockchain services.

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