Senior Backend Engineer, Business Accounts & Investments

Nearheal; Sydney; Hybrid; AUD 150,000 - 210,000; Full time

Job summary

Airwallex's Sydney-based Business Accounts team is seeking a Senior Software Engineer to architect and deliver backend systems for a unified business financial experience. You will own end-to-end investment workflows and build core infrastructure like reconciliation controls and investment ledgers, collaborating with Product, Infra, Design, and external providers.

You’ll work from our Sydney office, contributing to scalable, observable platforms with modern tech such as Kotlin, Vert.x, Temporal,

Qualifications

• 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, including scalability, consistency, and latency.
• Strong backend engineering experience with Kotlin, Vert.x, Temporal, or Kafka is a plus.
• 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.

Responsibilities

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

Skills

Distributed systems

Backend engineering

Cloud platforms

Automated testing

Observability

Education

Bachelor's degree in CS or related field

Tools

Docker

Kubernetes

Kafka

Splunk

New Relic

Prometheus

Grafana

Job description

Airwallex's Sydney-based Business Accounts team is seeking a Senior Software Engineer to architect and deliver backend systems for a unified business financial experience. You will own end-to-end investment workflows and build core infrastructure like reconciliation controls and investment ledgers, collaborating with Product, Infra, Design, and external providers.

You’ll work from our Sydney office, contributing to scalable, observable platforms with modern tech such as Kotlin, Vert.x, Temporal,