Why PayNet / Why Now

TL;DR

Build and scale the backend systems powering Malaysia's core payment infrastructure
Own APIs, data models, and services that process high‑volume, real‑time transactions
Make decisions that directly impact system reliability, performance, and security
Ideal for engineers who thrive on solving complex problems at scale with real‑world impact

Why This Role Matters

Payment systems must be fast, secure, and always available—failure is visible at a national level
Strong backend engineering directly impacts financial stability, customer trust, and ecosystem growth
Poor design decisions create cascading risks across banks, businesses, and consumers
This role demands judgment under scale—balancing performance, resilience, and security

What You Will Actually Do

Own the design and evolution of backend services powering critical payment flows
Build and scale APIs that handle high‑volume, low‑latency transactions
Shape database architecture, optimizing for performance, consistency, and resilience
Diagnose and resolve complex system issues, driving root‑cause fixes—not quick patches
Embed security and data protection into system design from day one
Influence engineering standards, code quality, and architectural decisions across systems

Examples of This Role in Practice

A spike in transaction volume exposes latency—redesign query patterns and caching strategy to stabilise performance
A third‑party integration introduces inconsistent responses—design safeguards and fallback mechanisms to protect system integrity
A production issue occurs under load—identify root cause across distributed services and implement permanent fixes
A new payment feature requires scale—define API contracts and data models that support future growth, not just current needs
A potential vulnerability is identified—drive architectural changes that eliminate the risk, not just mitigate symptoms

What Will Help You Succeed

Required:

Strong command of at least one backend language (Java, Golang, Python, Node.js) with the ability to apply it at scale
Proven ability to break down complex system problems and drive effective, lasting solutions

Helpful:

Strong instinct for clean, maintainable code and thoughtful system design
Ability to adapt quickly in evolving environments with shifting requirements
Empathy for end users—building systems that solve real problems, not just technical ones

Senior Backend Engineer - MoneyLion

Senior Engineer (Backend)