← All roles

Senior Backend Engineer, Liquidity Platform

Airwallex· Engineering
Apply on company site
SG - SingaporeFull-timePosted 3mo ago

About the role

Senior backend engineer role focused on building and operating liquidity management systems, liquidity forecasting, cash positioning, and related financial infrastructure for Airwallex.

Responsibilities

  • Build reliable backend services for liquidity management, safeguarding, investment workflows and cash data management.
  • Improve the availability and efficiency of funds across entities, accounts and currencies.
  • Deliver scalable systems for liquidity forecasting, cash positioning, internal fund movement, funding optimisation and operational decision-making.
  • Strengthen financial infrastructure through robust controls, reconciliation, observability and auditability.
  • Partner with Product, Treasury, Finance, Legal, Compliance, Risk, Data and other engineering teams to take features from requirements and design through implementation, testing, deployment and operation.
  • Own services through the full lifecycle, using distributed systems, event-driven workflows, Kafka, gRPC, REST APIs and SQL or NoSQL data stores.

Qualifications

  • 5+ years of experience building and operating backend systems in production.
  • Strong programming experience in one or more JVM languages, such as Kotlin or Java, or a comparable backend stack, and a willingness to work primarily in the JVM ecosystem.
  • A solid understanding of distributed systems fundamentals, including concurrency, data consistency, idempotency, retries, backoff and failure modes in networked services.
  • Experience designing and working with REST and/or gRPC APIs, and persistence layers using relational databases, such as PostgreSQL, and/or key-value stores.
  • Proficiency with event-driven architectures and message brokers or streams, such as Kafka or similar technologies.
  • A strong focus on testing and quality, including unit, integration and contract tests, with familiarity with CI/CD pipelines.
  • A good grasp of observability, including metrics, logging, tracing and alerting, and how to use them to debug production issues.
  • Clear written and verbal communication skills, with the ability to work comfortably with cross-functional partners in a fast-paced environment.

Skills

Required:Java / Kotlin (JVM)REST and gRPCPostgreSQL / relational databasesEvent-driven architecture / KafkaObservability & CI/CDDistributed systems
Nice to have:NoSQL / key-value stores
Last updated Oct 15, 2026. Interested? Apply on the company site.
Airwallex logo

About Airwallex

Trusted Global Payments & Financial Platform

Grow your business faster with Airwallex - global business accounts, high speed transfers, multi-currency cards, online payments, embedded finance, and more.

PaymentsBankingFinancialGlobal
Company profileWebsite

More open roles at Airwallex