Senior Ruby Developer (Ruby & Go)

Описание

This role is for a Senior Ruby Developer to own the backend behind a payment portal and PSP integrations within a fintech company specializing in innovative trading solutions and financial products. The platform and team work seamlessly across time zones, providing cutting-edge services to traders worldwide.

Responsibilities

• Design, build, and own backend services in Ruby (Rails) and Go
• Integrate new PSPs (cards, bank transfer, crypto, local methods) into the payment portal
• Build and maintain deposit and withdrawal flows end to end
• Design and consume PSP APIs, webhooks, and callback handlers
• Implement transaction routing, status tracking, and reconciliation logic
• Handle payment states, retries, idempotency, and failure/edge-case handling reliably
• Ensure secure handling of payment data and compliance (PCI DSS)
• Maintain and monitor existing PSP connections; 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

Requirements

• 5+ years backend engineering experience (API and integration heavy)
• Strong Ruby / Ruby on Rails expertise; production Go experience strongly preferred
• 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
• Experience in fintech, payments, or forex/CFD brokerage preferred
• Strong attention to reliability, security, and detail

We offer

• Remote work
• Work schedule Monday–Friday, 9:00–18:00