Ruby Engineer

-familiar with Ruby,Ruby on Rails, Golang experience is preferred.
 -write efficient, elegant, reusable and secure code.
 -familiar with Postgresql, understanding of various data types, index construction, analysis and optimization.
 -familiar with optimization methods such as batch operation, incremental operation and caching.
 -familiar with Sidekiq, understand retry mechanism, idempotency concept.
 -familiar with RESTful and GraphQL.
 -familiar with CI/CD tools.
 -familiar with Docker, Kubernates container technology.
 -understand Zero downtime deploy.
 Experience in research and development of digital currency exchange, wallet and payment system is preferred.
 -High concurrency, experience in large-scale micro-service projects is preferred.
 -experience in building optimization and evolution projects from 0 to 1 is preferred.
 -experience in high-quality open source projects is preferred