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Senior Software Engineer Backend, Billing

SG - Singapore💼 Full-time🗓 2026-02-02 → 2026-09-26

Core

Lead the planning, design, and implementation of Airwallex's engineering system and core billing functions for a global payments platform.

Role type

Senior Backend Software Engineer (Billing & Payments)

Builds

Next-generation billing platform, microservices, and complex distributed systems for global businesses.

Domain

Fintech / Global Payments / Billing

Deliverable

production ML models | product features

Required skills

Core Java, Java 8, multi-threading, high concurrency, IO/NIO, network communication, design patterns, distributed systems, server optimization

Preferred skills

Payment platform development, International clearing/settlement, NoSQL (Cassandra/Redis), Cloud (Aliyun/AWS), Container orchestration (Docker/Kubernetes)

Technologies

Java, Java 8, Cassandra, Redis, Aliyun Cloud, AWS, Docker Swarm, Kubernetes

Responsibilities

Lead system planning and architecture design; Develop microservice components; Introduce innovative technologies; Manage technical team and coding standards; Optimize service response and data query for high availability.

Seniority

Senior, hands-on IC with team leadership

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