Senior Fintech Backend Engineer - Payments & Ledger

Gsfbanking; Kuala Lumpur; Hybrid; MYR 134,000 - 201,000; Full time

Job summary

GSF Digital Platform in Kuala Lumpur, Malaysia (Hybrid) seeks a Senior Backend Engineer to build core banking ledger, payment rails, and high-throughput APIs that process real money for customers worldwide.

You will design and ship payment rail integrations, own the double-entry ledger, and write secure, observable TS/Node.js services while mentoring engineers and supporting production systems.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 5+ years building production backend systems.
• Experience with financial systems, payments, or fintech preferred.
• Strong understanding of distributed systems, idempotency, and double-entry ledgers.

Responsibilities

• Design and ship payment rail integrations (SWIFT, Visa, ACH, RTP).
• Own the double-entry ledger and reconciliation engine.
• Write secure, observable, well-tested TypeScript / Node.js services.
• Participate in on-call rotation for production banking systems.
• Mentor mid-level engineers and review architecture.

Skills

TypeScript

Node.js

REST APIs

Distributed systems

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

PostgreSQL

Job description

GSF Digital Platform in Kuala Lumpur, Malaysia (Hybrid) seeks a Senior Backend Engineer to build core banking ledger, payment rails, and high-throughput APIs that process real money for customers worldwide.

You will design and ship payment rail integrations, own the double-entry ledger, and write secure, observable TS/Node.js services while mentoring engineers and supporting production systems.