Software Engineer II, Liquidity Platform

Airwallex; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

Airwallex is seeking an experienced backend engineer to join the Liquidity Platform team in Singapore. You will design and build backend services for global liquidity management, ensuring operations run smoothly and efficiently.

The ideal candidate has over 5 years of experience, strong programming skills in JVM languages, and a solid grasp of distributed systems. Join us in building advanced infrastructures for managing funds globally.

Qualifications

• 5+ years of experience building backend systems in production.
• Strong programming experience in JVM languages.
• Solid understanding of distributed systems fundamentals.

Responsibilities

• Design and build backend services for global liquidity management.
• Develop scalable platforms for liquidity forecasting.
• Contribute to global safeguarding compliance infrastructure.

Skills

Backend systems

JVM languages (e.g. Kotlin, Java)

Distributed systems fundamentals

REST and/or gRPC APIs

Event-driven architectures

Testing and quality

Observability (metrics, logging)

Clear communication skills

Tools

PostgreSQL

Kafka

Job description

About the team

The Liquidity Platform team powers the core infrastructure that enables Airwallex to manage funds efficiently, securely and intelligently across the globe.

Our platform ensures that money is always in the right place, at the right time, and used in the most effective way. We build systems for liquidity management, safeguarding, investment, and cash data management and analysis. These capabilities are critical to supporting Airwallex’s global operations, regulatory obligations and capital efficiency.

As Airwallex continues to scale globally, liquidity becomes one of the most important and complex infrastructure challenges. We need to forecast funding needs, optimize cash movements, support safeguarding compliance across jurisdictions, improve investment capabilities, and uncover new opportunities for capital optimization through high-quality data and analytics.

We are looking for talented and driven backend engineers to join the Liquidity Platform team and help us build one of the world’s most advanced and efficient liquidity management systems.

What you’ll do

You are an experienced backend engineer who is comfortable working in complex domains like financial markets, payments or other high‑integrity distributed systems. You care deeply about correctness, simplicity and operability, and you’re happy to engage with product and non‑technical stakeholders on trade‑offs.

You’re pragmatic: you can balance ideal architectures with the realities of delivery, and you’re comfortable iterating on systems that are already in production.

This role is based in Singapore.

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.
• Build data pipelines, models and analytical capabilities to improve visibility into cash positions, liquidity usage, fund flows and optimisation opportunities.
• Work on complex distributed systems using modern backend architecture, including microservices, event‑driven workflows, Kafka, gRPC, REST APIs, and SQL/NoSQL datastores.
• Implement robust controls for limits, approvals, reconciliation, data quality, monitoring and auditability to ensure our platform behaves predictably under stress and failure scenarios.
• Work end‑to‑end on features: from requirements clarification and solution design, to implementation, automated testing, deployment, observability and operational runbooks.
• Collaborate closely with Product, Treasury, Finance, Legal, Compliance, Risk, Data and other engineering teams to design APIs, data contracts and workflows that are reliable, observable and easy to operate.
• Instrument services with metrics, logs and tracing, and use these tools to support capacity planning, performance optimisation, incident response and continuous improvement.
• Participate in code reviews, technical design discussions and knowledge‑sharing sessions; mentor less‑experienced engineers where appropriate.
• Take part in our on‑call rotation, supported by strong observability, runbooks and team processes, to ensure the Liquidity Platform remains reliable and highly available.

Who you are

We’re looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.

Minimum qualifications

• 5+ years of experience building and operating backend systems in production.
• Strong programming experience in one or more JVM languages (e.g. Kotlin, Java) or a comparable backend stack, and a willingness to work primarily in the JVM ecosystem.
• Solid understanding of distributed systems fundamentals: 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 (e.g. PostgreSQL) and/or key‑value stores.
• Proficiency with event‑driven architectures and message brokers/streams (e.g. Kafka or similar).
• Strong focus on testing and quality: unit, integration and contract tests; familiarity with CI/CD pipelines.
• Good grasp of observability: metrics, logging, tracing and alerting, and how to use them to debug production issues.
• Clear written and verbal communication skills; comfortable working with cross‑functional partners in a fast‑paced environment.

Preferred qualifications

• Experience in fintech, payments, treasury, banking, liquidity management, safeguarding, investment platforms, regulatory reporting or financial data systems.
• Experience building systems that require strong auditability, reconciliation, controls, approval workflows or financial correctness.
• Experience working with data‑intensive systems, cash flow analytics, forecasting, reporting or operational dashboards.
• Familiarity with financial operations concepts such as cash positioning, fund movement, bank account structures, entity‑level liquidity, safeguarding, investment limits or cash optimisation.
• Experience designing platforms that support global operations across multiple markets, currencies, entities or regulatory environments.

Equal opportunity

Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.