Senior Network Engineer, Singapore

About Airwallex Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 676,000 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. About the team Corporate IT drives our IT support, IT engineering and business engineering functions at Airwallex. IT 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. What you’ll do 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. Responsibilities: 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 CorpNet, 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 (e.g., CorpSec, ProdSec, Engineering, Product, IT Engineering, Workplace, etc.) to integrate network solutions and support business initiatives. Work with IT Engineering, IT Support on troubleshooting network issues on endpoints, including basic IT operations support, building a core networking understanding among the team Develop and maintain comprehensive network documentation, including diagrams, configurations, and operational procedures. Evaluate and recommend new networking technologies and solutions to stay ahead of our busin