Senior Software Engineer, Business Accounts (Fintech)

Location: Sydney, Australia. Hybrid schedule with work from the Sydney office on Monday, Thursday and Friday.

Company

Airwallex builds an AI-native financial operating system and infrastructure for global payments, business accounts, and financial products.

What you will do

• Shape the architecture and long-term technical vision of backend systems for the Yield squad.
• Deliver client signup, investment, and redemption workflows end to end.
• Build reconciliation controls, unit registries, investment ledgers, and other financial infrastructure.
• Improve reliability and maintainability through automated testing, observability, API design, and robust integration rails.
• Collaborate with Product, Infrastructure, Design, and external investment providers to deliver integrated financial experiences.

Requirements

• 5+ years of professional software engineering experience.
• Bachelor’s degree or above in computer science, software engineering, or a related field.
• Experience solving distributed systems challenges involving scalability, consistency, and latency.
• Strong backend engineering experience; the current stack includes Kotlin, Vert.x, Temporal, and Kafka.
• Experience with automated testing and quality control processes.
• Experience with cloud technologies such as GCP or AWS, including Docker and Kubernetes.
• Experience integrating observability tooling such as Splunk, New Relic, Prometheus, or Grafana.

Nice to have

• Experience in financial services, lending, payments, or credit products.
• Experience building SaaS products offered as a platform.

Culture & Benefits

• Work in a new, early-stage Business Accounts team building the technical foundations of a core platform from the ground up.
• Own the roadmap, operate comfortably with ambiguity, and make decisions with a bias toward action.
• Collaborate across Product, Infrastructure, Design, and external providers.
• Direct, respectful communication and an emphasis on understanding why before deciding how.

Hiring process

• Apply only through careers.airwallex.com or Airwallex’s official LinkedIn page.
• Official communication comes from an @airwallex.com email address; Airwallex does not request bank details, sensitive identification numbers, or payment during hiring.
• Unsolicited resumes from search firms or recruiters are not accepted.