Senior Ruby & Go Backend Engineer — Payments (Remote)

NEPSE Trading; United States; Remote; USD 130,000 - 180,000; Full time

Benefits offered by this job

Fully remote

Visa sponsorship

Medical insurance

Career growth

Global events

Job summary

NEPSE Trading is seeking a Senior Ruby Developer to own the backend behind our payment portal and PSP integrations. You will lead the technical work for deposits, withdrawals, and secure money movement, leveraging Ruby and Go. You will report to the CPO and work in a fully remote setting.

The role requires 5+ years in backend engineering with API and integration focus, strong Ruby on Rails skills, and production Go experience. Knowledge of PCI DSS and fintech payments is essential.

Qualifications

• 5+ years backend engineering experience with API and integrations.
• Strong Ruby/Rails expertise; production-grade Go experience preferred.
• Proven track record integrating PSPs or payment gateways.
• Solid understanding of payment flows, webhooks, and lifecycles.
• Knowledge of PCI DSS and secure handling of financial data.
• Experience with reconciliation, idempotency, and error handling.

Responsibilities

• Design, build, and own backend services in Ruby (Rails) and Go.
• Integrate new PSPs 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 error handling.
• Ensure secure handling of payment data and PCI DSS compliance.
• Maintain and monitor 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.

Skills

Ruby

Ruby on Rails

Go

API design

Payment systems

PCI DSS

Tools

PSP integrations

Job description

NEPSE Trading is seeking a Senior Ruby Developer to own the backend behind our payment portal and PSP integrations. You will lead the technical work for deposits, withdrawals, and secure money movement, leveraging Ruby and Go. You will report to the CPO and work in a fully remote setting.

The role requires 5+ years in backend engineering with API and integration focus, strong Ruby on Rails skills, and production Go experience. Knowledge of PCI DSS and fintech payments is essential.