Senior Ruby Developer (Ruby & Go)

Position:Senior Ruby Developer (Ruby & Go)

Reporting to: IT Team Lead

Work Arrangement: Remote | Monday–Friday | 9:00–18:00

Company Overview:

We are a forward-thinking fintech company specializing in innovative trading solutions and financial products. With a dynamic platform and a tech-savvy team working seamlessly across time zones, we provide cutting-edge services to traders worldwide.

About the Role:

We are looking for a Senior Ruby Developer (Ruby & Go) to own the backend behind our payment portal and PSP integrations. You will lead the technical work of connecting new deposit and withdrawal methods, hardening existing integrations, and ensuring reliable, secure money movement across the platform. Ruby is our primary stack; Go is used for high-throughput and latency-sensitive services, so strength in both is strongly preferred. You will report to the CPO.

Key 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