Senior Cloud Infrastructure Engineer

📋 Job Overview

Application for Senior Cloud Infrastructure Engineer (Cloud Networking) at Airwallex, a unified payments and financial platform for global businesses. We empower over 250,000 businesses worldwide with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. We have a team of over 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 billion and backed by world-leading investors, Airwallex is leading the charge in building the global payments and financial platform of the future.

🏢 About Airwallex

Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 250,000 businesses worldwide – including Brex, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us.

🎯 The Role

As Airwallex’s engineering organization matures, the Infrastructure team builds and scales our globally distributed financial platform. We focus on high availability, security, and cloud scalability while empowering developer productivity across global regions.

✅ Key Responsibilities

• Cloud Network Architecture: Design, build, and optimize highly available, multi-account, and multi-region AWS and GCP cloud network architectures (Layer 3 routing, Transit Gateway, Shared VPC, Cloud Router, Direct Connect).
• Infrastructure as Code (IaC): Automate and manage global cloud network infrastructure using Terraform through Git-driven CI/CD pipelines.
• Hybrid & Cross-Cloud Connectivity: Manage BGP routing, IPsec VPNs, and dynamic cloud routing between public clouds (AWS/GCP), regional POPs, and external banking partners under strict financial regulatory requirements.
• Operational Excellence & Observability: Serve as an escalation point for complex cloud networking issues, improve network visibility, and participate in a global on-call rotation.
• Cross-functional Collaboration: Work closely with Security, DevOps, and Platform teams to build secure Landing Zones and automated network controls.

📌 Required Qualifications

• Cloud & DevOps Experience
• Solid AWS Design Experience: hands-on experience designing and operating AWS network environments at scale (VPC, TGW, Route Tables, Direct Connect, AWS Network Firewall).
• Infrastructure as Code: Proficiency in Terraform (or equivalent IaC tools) for provisioning and automating cloud network components.
• GCP / Multi-Cloud Exposure: Practical experience with GCP networking concepts (Shared VPC, Cloud Router) or multi-cloud environments.
• DevOps Alignment: Familiarity with Linux distributions, scripting (Python or Bash), and CI/CD pipelines.
• Networking Fundamentals: Strong knowledge of core routing and switching, subnetting, TCP/IP, and BGP dynamic routing principles.
• Certification / Experience: Holds or has equivalent hands-on experience equal to Associate-level networking certifications (e.g., CCNA, JNCIA-Junos, HCIA, Aruba ACA, Network+, or AWS Certified Advanced Networking - Specialty / GCP PCNE).

⭐ Desirable Experience

• Experience in Fintech, local banking, or high-concurrency/high-availability financial networks with strict information security requirements.
• Familiarity with GCP-preferred architectures
• Advanced certifications (CCNP/JNCIP or AWS Certified Advanced Networking - Specialty).
• AI-assisted workflows and modern operational tools integration.

🎁 Benefits

Competitive

🛂 Visa & Eligibility

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.