Senior Ruby Developer (Ruby & Go)

TradeQuo

WorldwideremotePosted 13 days ago

Skill Required

Senior-Ruby-DeveloperBackend-EngineerRuby-DeveloperGo-DeveloperPayments-EngineerSenior-Ruby-On-Rails-DeveloperSenior-Ruby-On-Rails-EngineerSenior-Ruby-Backend-EngineerSenior-Rails-DeveloperSenior-Golang-DeveloperSenior-Go-DeveloperSenior-Golang-Software-EngineerRubyGotroubleshootingRailsEngineeringdesigningsecurityISO 27001fintechdesignDesign PatternsAPIsandFulltime

Key highlights

Strong Ruby / Ruby on Rails expertise; production Go experience strongly preferred
5+ years backend engineering experience (API and integration heavy)
Visa sponsorship and medical insurance from week one
Knowledge of PCI DSS and secure handling of financial data

Role overview

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.

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
Strong attention to reliability, security, and detail