Senior​/Network Engineer, San Francisco

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 200,000 businesses worldwide – including Brex, Rippling, 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 2,200 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US $8 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.

We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role‑related expertise and sharp thinking, and you’re motivated by our mission and operating principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor.

You’re humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end‑to‑end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next.

Corporate IT drives our IT support, IT engineering and business engineering functions  Engineering is the core team that drives our technology experiences from communications and video conferencing to managing our computers, applications, identity and access management. Network Operations builds our corporate network, supports our international access for our Airwallex staff all over the globe, and ensures a reliable and stable experience for our remote and in‑office needs.

We design, build and run the systems and services our Airwallex team uses to build our product, serve our customers and run our business. We partner with every team in the business, from Finance to Engineering, People Operations and Support and solve problems and create solutions for the many challenges our teams face.

As a Senior / Staff Network Engineer, you will define the global technical strategy, architecture, and roadmap for Airwallex’s enterprise and cloud network infrastructure. You will design and deploy highly secure, multi‑region hybrid network patterns that bridge physical offices, data centers, and multi‑cloud environments (AWS/Alibaba Cloud) at massive scale. Acting as a principal technical leader, you will champion infrastructure‑as‑code automation (Terraform, Ansible), optimize routing protocols for low‑latency financial systems, and mentor engineers across our global infrastructure team.

This role is based in Singapore, Sydney, Melbourne or San Francisco.

• Build the foundations of our new corporate network, and help design the team structure and size for the future
• Design and build corporate network infrastructure for new Airwallex offices as we expand globally, and upgrade our existing portfolio
• Design, implement, and maintain highly available and secure corporate network infrastructure (LAN, WAN, Wireless, VPN) across multiple global offices and regions.
• Configure on‑prem gateway/router/networking hardware globally, including mixed vendors in some locations
• Manage global connectivity over international leased lines and domestic internet connections
• Lead the configuration and troubleshooting of complex network devices, including routers, switches, firewalls, load balancers, and wireless access points.
• Own Corp Net, and act as a first‑responder or escalation point for complex network issues, running an incident through to completion and after‑action reports.
• Collaborate with cross‑functional teams…