Hong Kong Island, Hong Kong SAR, Hong Kong

Go Developer - Crypto

 Job Description:

About the Role

Were looking for a backend engineer whos strong in Golang and comfortable working with an existing Ruby on Rails codebase. Youll help build high-performance services in Go while maintaining and evolving Rails-based systems that support core business workflows. This role is ideal for someone who enjoys system design, clean APIs, and pragmatic engineering.

What You'll Do

  • Design, build, and maintain backend services in Golang with a focus on performance, reliability, and scalability.
  • Work with and extend Ruby on Rails applications, including APIs, background jobs, and domain logic.
  • Migrate or refactor parts of the system from Rails to Go where performance or scale requires it.
  • Collaborate with product managers, frontend engineers, and DevOps to deliver end-to-end features.
  • Write clean, testable, and well-documented code across both stacks.
  • Participate in architecture discussions, code reviews, and technical decision-making.
  • Monitor, debug, and improve production systems.

What Were Looking For

  • Strong hands-on experience with Golang in production systems.

  • Solid experience with Ruby on Rails, especially building APIs and backend services.
  • Understanding of RESTful APIs, microservices, and service-to-service communication.
  • Experience with relational databases (PostgreSQL/MySQL) and ORM concepts.
  • Familiarity with background processing (Sidekiq, workers, queues, etc.).

  Required Skills:

RESTful APIs Ruby Scalability Features Reviews Decision-Making Microservices Reliability DevOps Architecture PostgreSQL Databases MySQL Design Engineering Business Communication