Senior Cloud Engineer (Networking), Infra

About Airwallex

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.

How you'll make impact

As Airwallex scales its globally distributed financial platform, you'll help build the cloud networking foundations that keep our infrastructure highly available, secure, and connected across regions and providers.

• Design, build, and optimise highly available, multi-account, and multi-region AWS and GCP cloud network architectures, including Layer 3 routing, Transit Gateway, Shared VPC, Cloud Router, and Direct Connect.

• Automate and manage global cloud network infrastructure using Terraform through Git-driven CI/CD pipelines.

• Manage BGP routing, IPsec VPNs, and dynamic cloud routing between AWS, GCP, regional points of presence, and external banking partners under strict financial regulatory requirements.

• Improve the reliability and visibility of cloud networking by serving as an escalation point for complex issues and participating in a global on-call rotation.

• Partner with Security, DevOps, and Platform teams to build secure landing zones and automated network controls.

You'll work from our Singapore office

What we're looking for

Essentials

• Hands-on experience designing and operating AWS network environments at scale, including VPC, Transit Gateway, route tables, Direct Connect, and AWS Network Firewall.

• Proficiency in Terraform or equivalent infrastructure-as-code tools for provisioning and automating cloud network components.

• Practical experience with GCP networking concepts, including Shared VPC and Cloud Router, or experience working in multi-cloud environments.

• Familiarity with Linux distributions, Python or Bash scripting, and CI/CD pipelines.

• Strong knowledge of core routing and switching, subnetting, TCP/IP, and BGP dynamic routing principles.

• An associate-level networking certification, or equivalent hands-on experience. Examples include CCNA, JNCIA-Junos, HCIA, Aruba ACA, Network+, AWS Certified Advanced Networking – Specialty, or GCP Professional Cloud Network Engineer.

Preferred

• Experience in fintech, local banking, or high-concurrency and high-availability financial networks with strict information security requirements.

• Familiarity with GCP-preferred architectures.

• Advanced certifications such as CCNP, JNCIP, AWS Certified Advanced Networking – Specialty, or equivalent.

• Experience integrating AI-assisted workflows and modern operational tools.

You'll thrive here if

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