Mid-Level Ruby on Rails Engineer

About the role

Quidax is looking for a Mid-Level Ruby on Rails Engineer to join the RAMP team, the on‑ramp/off‑ramp product that enables users to move money in and out of crypto. You will work on core transaction flows such as deposits, withdrawals, partner integrations and reconciliation, taking ownership of features and improving system reliability.

Key responsibilities

• Get familiar with the RAMP codebase and ship your first fix within the first month.
• Own specific features or end‑to‑end flows by month three, with team support as needed.
• Investigate and resolve reliability issues across deposits, withdrawals and partner callbacks independently by month six.
• Reduce recurring issues like stuck transactions, failed callbacks and unclear states.
• Increase test coverage for critical flows and improve observability with better logging, alerts and debugging hooks.
• Participate in code reviews, share knowledge and mentor peers.

Required profile

• 3‑5 years of production Ruby on Rails backend experience.
• Strong debugging skills and a methodical approach to tracing flows.
• Ability to write clean, maintainable code that directly impacts real users.
• Comfortable working in a fast‑moving fintech environment.

Required skills

• Ruby
• Ruby on Rails
• Design and consumption of APIs
• Background job processing
• Database design and SQL
• Automated testing
• Debugging and log analysis
• Observability (logging, alerts, monitoring)