Senior Backend Engineer, Global Liquidity Platform

Airwallex; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Airwallex in Singapore is seeking an experienced backend engineer to join the Liquidity Platform team. You will design, build and operate backend services for global liquidity management, safeguarding, and investment workflows, ensuring correctness and operability in high‑integrity systems.

You will collaborate with Product, Treasury, Finance, Legal and Data teams, implement scalable APIs, and contribute to observability, testing and on-call reliability.

Qualifications

• 5+ years building and operating backend systems in production.
• Strong JVM language experience (Java or Kotlin) and backend focus.
• Experience designing REST or gRPC APIs with relational or key‑value stores.

Responsibilities

• Design, build and own backend services for global liquidity management, safeguarding, investment workflows, and cash data management.
• Develop systems that ensure funds are available in the right entities, accounts and currencies to support global business operations efficiently and reliably.
• Build scalable platforms for liquidity forecasting, cash positioning, internal fund movement, funding optimisation, and operational decision‑making.
• Contribute to Airwallex’s global safeguarding compliance infrastructure by building reliable systems that support regulatory reporting, segregation of funds, reconciliation and control processes.
• Design and enhance investment platform capabilities that help Airwallex manage surplus funds safely, efficiently and in line with internal policies and regulatory requirements.

Skills

Backend engineering

Java/Kotlin

Distributed systems

REST/gRPC APIs

Observability

Tools

Kafka

PostgreSQL

Job description

Airwallex in Singapore is seeking an experienced backend engineer to join the Liquidity Platform team. You will design, build and operate backend services for global liquidity management, safeguarding, and investment workflows, ensuring correctness and operability in high‑integrity systems.

You will collaborate with Product, Treasury, Finance, Legal and Data teams, implement scalable APIs, and contribute to observability, testing and on-call reliability.