backend developer for payment portals

TradeQuo Global is a fintech company specializing in trading solutions and financial products. Its platform provides services to traders worldwide.

• Design, build, and own backend services in Ruby (Rails) and Go
• Integrate new PSPs, including cards, bank transfers, crypto, and local payment methods, into the payment portal
• Build and maintain end-to-end deposit and withdrawal flows
• Design and consume PSP APIs, webhooks, and callback handlers
• Implement transaction routing, status tracking, and reconciliation logic
• Handle payment states, retries, idempotency, failures, and edge cases reliably
• Ensure secure handling of payment data and PCI DSS compliance
• Maintain and monitor existing PSP connections and resolve integration issues
• Set technical direction, review code, and mentor other engineers
• Build reporting and logging for payment operations and troubleshooting
• Support anti-fraud, AML, and KYC checks within payment flows

• 5+ Years of backend engineering experience, with a focus on APIs and integrations
• Strong Ruby and Ruby on Rails expertise
• Proven experience integrating PSPs or payment gateways
• Solid understanding of payment flows, webhooks, and transaction lifecycles
• Knowledge of PCI DSS and secure handling of financial data
• Experience with reconciliation, idempotency, and error-handling patterns
• Experience designing and scaling distributed backend systems
• Strong attention to reliability, security, and detail
• Будет плюсом: production Go experience, experience in fintech, payments, or forex/CFD brokerage

• Monday–Friday, 9:00–18:00