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OnsiteStaff/Principal/Architectfintech

Senior/Staff Software Engineer, Billing team

AirwallexSingaporePosted 20 May 2026

Airwallex is hiring a Senior/Staff Software Engineer to join their Billing team in Singapore. You will lead the design and implementation of a next-generation billing and invoicing platform, working across global cross-functional teams. The role requires deep expertise in Core Java, high-concurrency systems, and microservices architecture. You will be responsible for system architecture, technical leadership, and mentoring team members to ensure scalable and robust solutions.

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Experience

6+ years

Function

Engineering

Work mode

Onsite, Singapore

Company

Tier 2

What you will work on

Airwallex is hiring a Senior/Staff Software Engineer to join their Billing team in Singapore. You will lead the design and implementation of a next-generation billing and invoicing platform, working across global cross-functional teams. The role requires deep expertise in Core Java, high-concurrency systems, and microservices architecture. You will be responsible for system architecture, technical leadership, and mentoring team members to ensure scalable and robust solutions.

TAL's take

Quality 75/1005/5 clarityTier 2 company

Role at a reputable fintech unicorn with clear leadership scope and complex technical challenges in a mission-critical domain.

Very clear, coherent requirements and responsibilities aligned with a high-level engineering role in a specific domain.

Must haves

  • 6+ years of core java development
  • 5+ years of experience in internet or financial systems
  • 1+ year of experience in payment platform development
  • Proficiency in Java 8 and high concurrency patterns
  • Experience with large-scale distributed systems

Tools and skills

javajava 8multi-threadinghigh concurrencyio/nionetwork communicationmicroservice frameworkdistributed systems

About the company

Airwallex is an established fintech unicorn with significant international presence but falls outside the primary Tier 1 global/India engine branding list.

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