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About the Role

Airwallex is building a unified, AI-native growth system across product, sales, and marketing. You'll own the backend foundations that turn customer and product signals into measurable growth across acquisition, activation, conversion, retention, and expansion.

Responsibilities

Own the architecture and delivery of scalable backend systems that power Airwallex's growth initiatives across acquisition, activation, conversion, retention, and expansion.
Design and evolve high-throughput, low-latency, highly available distributed systems, including microservices, event-driven architectures, experimentation platforms, and data pipelines.
Turn customer, product, lifecycle, behavioural, and intent signals into reliable data products, intelligent decision systems, personalised journeys, and next-best actions.
Partner closely with Product, Data Science, Frontend, Design, Marketing, and other Engineering teams to translate ambiguous business problems into secure, measurable technical solutions.
Raise the technical bar through architectural reviews, code reviews, mentoring, observability, resilient service design, and pragmatic engineering standards.
Build the foundations for rapid experimentation, feature flags, performance monitoring, and AI-native growth workflows while protecting customer data and meeting regulatory expectations.
Drive complex initiatives from problem definition through production operation, making sound technical decisions with a high degree of autonomy.

Requirements

Significant experience designing, building, and operating production backend systems, with strong ownership from technical design through reliability and ongoing improvement.
Deep understanding of computer science fundamentals, object-oriented programming, distributed systems, domain-driven design, and event-driven architectures.
Strong experience with high-throughput, low-latency, highly available services and systems.
Strong proficiency in Java, Kotlin, or a comparable backend language, with the ability to make sound choices across service design and implementation.
Experience with modern engineering practices, including continuous integration, automated testing, code review, and quality engineering.
Experience working with cloud infrastructure and containerised deployments, such as GCP or AWS, Docker, and Kubernetes.
Experience with observability and production operations, including tools such as Splunk, Grafana, or Prometheus.
A track record of leading ambiguous, cross-functional technical initiatives and delivering measurable outcomes.
Strong communication skills and the ability to collaborate effectively with Product, Data Science, Design, Marketing, and Engineering partners.
Experience with JVM-based development using Java or Kotlin and frameworks such as Spring or Spring Boot.
Experience building experimentation platforms, feature-flag systems, growth infrastructure, customer segmentation, or analytics products.
Experience solving go-to-market or growth operations problems end to end.
Knowledge of data warehousing, event pipelines, lifecycle systems, and analytics tooling.
Experience building internal or customer-facing products that use AI or large language models.
Experience in fintech, payments, or another regulated environment.

Skills

Java
Kotlin
GCP
AWS
Docker
Kubernetes
Splunk
Grafana
Prometheus
Spring
Spring Boot
AI
Large language models

Location

Seattle

Work Type

Hybrid

Experience Level

Senior

About the Company

Airwallex is the AI-native financial operating system for a real-time, intelligent economy.
More than 675,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own.
We started in Melbourne in 2015 to build the infrastructure global commerce runs on.
We're the regulated backbone behind global payments: not by accident, but by design.
A decade plus, 85+ licenses, and a financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific.
We're co-headquartered in San Francisco and Singapore, with more than 2,300 people across 27 offices.
We hire builders with founder-level energy, people who move fast with good judgment, dig in with real curiosity, and make calls from first principles rather than waiting to be told what to do.
Read our operating principles to see it in full.

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.