About this role

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
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