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Airwallex Logo Airwallex · IT - Software Development

Senior Software Engineer, Tech Platform - Notification

Singapore · Job Posted February 21, 2026
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Job Description

As a vital member of the Tech Platform -Notification Team, you will be part of a specialized force that meticulously bridges the gap between business exigencies and architectural finesse. You will engage in: A cloud native Platform with cutting-edge technologies such as reactive programming, temporal, workflow, distributed systems, and advanced gateway solutions; An I/O intensive and mission critical system serving the entire organization requiring high craftsmanship, discipline and continuous innovative mindset; Comprehensive, organization-wide evaluations of strategic solutions.

Job Responsibility

  • Design, develop & maintain a resilient, high-throughput, low-latency Notification Platform to deliver messages (SMS, Email, Push) to our customers worldwide
  • Maintain a high architecture standard & craftsmanship through an Event Driven Architecture requiring high scalability, traceability & automation
  • Identify new opportunities to engage adopters through delightful adoption experience and extension over various channels, such as WhatsApp and inbox notifications
  • Engage with Product, Engineering, and Design teams across Airwallex's global offices, fostering effective communication through fast pace business transformation & providing data insights
  • Troubleshoot production issues across different levels of the stack.

Requirements

  • More than 5 years of back-end development experience
  • Have experience in developing large-scale systems
  • Bachelor degree or above in computer science or engineering related majors
  • Proficient in coding and scripting languages (Java(Kotlin) /C++ /Python, etc.) with strong software design and system design abilities
  • At least 3 years of experience building distributed systems using middleware (like Kafka, PostgreSQL) and have hands on experience on managing, maintaining and tuning event pipeline
  • Familiar with at least one : Java memory management, multi-threading, high concurrency, IO / NIO, network communication, etc.

Nice to have

  • Wider interest beyond backend technologies, including design systems, search & AI technologies, gateway technologies and data analytics
  • Focus on automating tasks to concentrate on high-impact activities and are proactive in reducing technical debt
  • Experience with distributed databases or storage systems like PostgreSQL /Redis /NoSQL
  • Proficient in messaging patterns and resilience
  • Hands-on knowledge with full implementation of Kafka.
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