Backend Engineer (App Engineering)

PayNet (Payments Network Malaysia); Kuala Lumpur; On-site; MYR 120,000 - 160,000; Full time

Job summary

PayNet (Payments Network Malaysia) seeks a Software Engineer to design, build, and operate scalable backend systems with emphasis on performance, reliability and security. You will own production-grade backend services and collaborate with cross-functional teams to deliver robust APIs, data models, and maintainable architectures.

You will optimise databases, troubleshoot production issues, and contribute to system documentation, while upholding coding standards and best practices for scalable,

Qualifications

• Strong hands-on experience with backend languages (Java, Golang, Python, or Node.js) and solid understanding of backend systems and databases.
• Proven debugging skills and ability to resolve production issues.

Responsibilities

• Design and develop clean, maintainable, and well-tested backend code following engineering best practices.
• Build and maintain APIs and backend services that enable seamless system integrations.
• Design and optimise database schemas, queries, and transactions for performance and scalability.
• Troubleshoot backend issues, perform root cause analysis, and implement sustainable fixes.
• Apply security and data protection best practices to safeguard data and ensure compliance.
• Maintain clear technical documentation covering system design and APIs.

Skills

Backend languages

Java

Golang

Python

Node.js

Databases

Job description

About The Role

As a Software Engineer, you will design, build, and operate scalable backend systems that support complex, real-world applications. This role offers direct exposure to production-grade architectures, where performance, reliability, and security are critical to business operations.

You will work closely with cross-functional teams to develop robust APIs, backend services, and data models, contributing to systems that must perform reliably at scale. Beyond feature development, you will take ownership of system optimisation, troubleshooting, and architectural improvements, strengthening system stability and maintainability over time.

This role suits engineers who enjoy solving non-trivial technical problems, working with modern backend technologies, and taking responsibility for systems running in production.

Key Responsibilities

• Design and develop clean, maintainable, and well‑tested backend code following engineering best practices.
• Build and maintain APIs and backend services that enable seamless system integrations.
• Design and optimise database schemas, queries, and transactions for performance and scalability.
• Troubleshoot backend issues, perform root cause analysis, and implement sustainable fixes.
• Apply security and data protection best practices to safeguard data and ensure compliance.
• Maintain clear technical documentation covering system design and APIs.

What Will Make You Successful

You enjoy working on systems that matter, where engineering decisions have real impact on reliability and user experience. You are comfortable owning backend services in production environments, value code quality and thoughtful design, and are motivated by continuous improvement and technical growth.

Must‑Have Requirements

• Strong hands‑on experience with backend languages such as Java, Golang, Python, or Node.js, and solid understanding of backend systems and databases.
• Proven problem‑solving and debugging skills, with experience identifying root causes and resolving production issues.

Advantage to Have

• Strong focus on code quality, testing, and clean design.
• Ability to adapt quickly in fast‑changing environments.
• Good understanding of database fundamentals, including data modelling and query optimisation.