Backend Developer (offline)

Requirements (must have):
- 4+ years of production engineering experience,
- Experience with Node.js, TypeScript, Nest.js,
- Experience with MySQL/PostgreSQL, MongoDB, RabbitMQ, Bull (Redis)
- Knowledge DDD, EDA, SOLID, OOP, Design Patterns
- Extensive experience in building scalable APIs,
- Solid understanding of microservices approach.

Nice to have:
- Experience in Blockchain and Crypto field,
- Experience working in Fintech, Banking.

Responsibilities:
Develop compelling features using modern tools and technologies with a focus on building future-proof systems that perform at scale;
Create servers and databases for cross-platform optimization, including mobile phones;
Engage in the full software development product lifecycle as part of a cross-functional, agile team;
Craft highly scalable, robust, and maintainable micro-services;
Collaborate with mobile team to facilitate their backend needs and build their APIs;
Integrate banking and other partner APIs;
Work with the team to develop test plans, including writing unit, end-to-end, and integration tests;
Respond to situations in a timely manner, and meet personal commitments.
Code-review

About XFamily

XFamily is a platform which provides fast, reliable and unified data APIs (Application
Programming Interface) to cryptocurrency markets.
We are a high-quality provider and developer of complex market data programs for the
cryptocurrency markets.
Our product is unique because it provides an opportunity to serve customers in the most convenient and fast way.
Most large companies at some stages are faced with the need to develop APIs for clients or for internal use.
That is why it was decided to create XFamily that offers API as a finished product for other companies.
In less than a year of work, we were able to create a constantly growing electronic database of historical market data, helped our clients integrate more than 100 cryptocurrency exchanges, and also increased their list of supported assets to 12,000.

Company website:
https://xfamily.io

DOU company page:
https://jobs.dou.ua/companies/hfamily/