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Ruby on Rails Backend Developer

Cardinal Blue Software

Cardinal Blue Software

Software Engineering
Taipei, Taiwan
Posted on Friday, January 7, 2022
We are looking for a backend developer with web and API development experience who is enthusiastic about clean and performant code to work on high-traffic applications that provide fun creative experiences for millions of people around the world.


  • Work on our core product, PicCollage, developing API and CMS systems.
  • Lead system architecture and development with attention to performance, stability, scalability, and reliability.
  • Collaborate closely with a cross-functional team (including designers, community managers, and PMs) to create new features for users.
  • Develop technical specifications for features and system architecture.

Should ideally:

  • Be passionate about solving challenging problems.
  • Have a high standard of code quality and safety.
  • Be bold but cautious.

Must have:

  • 3+ years of experience in Ruby on Rails.
  • SQL skills to write queries that ActiveRecord can’t handle easily.
  • Sufficient knowledge of Unix-like OS to solve server issues.

Have a basic understanding of:

  • Web development
  • U*NX operating systems
  • RDBMS (PostgreSQL)
  • NoSQL (Redis, Elasticsearch)
  • Network programming
  • HTTP
  • OOP/SOLID principles
  • CI/CD
  • Design patterns
  • Software Architecture