Senior Cloud Infra Engineer (Cloud Networking)

Location: Singapore

Company

Airwallex provides a unified payments and financial platform for global businesses, combining proprietary infrastructure and software for business accounts, payments, spend management, treasury, and embedded finance.

What you will do

• Design, build, and optimize highly available multi-account and multi-region AWS and GCP network architectures.
• Automate global cloud network infrastructure with Terraform through Git-driven CI/CD pipelines.
• Manage BGP routing, IPsec VPNs, and dynamic connectivity between AWS, GCP, regional points of presence, and external banking partners.
• Improve network visibility, handle complex cloud networking escalations, and participate in a global on-call rotation.
• Collaborate with Security, DevOps, and Platform teams to build secure landing zones and automated network controls.

Requirements

• Hands-on experience designing and operating AWS network environments at scale, including VPC, Transit Gateway, route tables, Direct Connect, and AWS Network Firewall.
• Proficiency with Terraform or equivalent infrastructure-as-code tools.
• Practical experience with GCP networking concepts such as Shared VPC and Cloud Router, or experience in multi-cloud environments.
• Familiarity with Linux, Python or Bash scripting, and CI/CD pipelines.
• Strong knowledge of routing, switching, subnetting, TCP/IP, and BGP dynamic routing.
• Associate-level networking certification or equivalent hands-on experience, such as CCNA, JNCIA-Junos, HCIA, Aruba ACA, Network+, AWS Certified Advanced Networking, or GCP PCNE.

Nice to have

• Experience in fintech, local banking, or high-concurrency and high-availability financial networks with strict information security requirements.
• Familiarity with GCP-preferred architectures.
• Advanced networking certifications, such as CCNP, JNCIP, or AWS Certified Advanced Networking.
• Experience with AI-assisted workflows and modern operational tool integrations.

Culture & Benefits

• Work on a globally distributed financial platform focused on high availability, security, and cloud scalability.
• Collaborate with infrastructure, Security, DevOps, and Platform teams across global regions.
• Take ownership of complex, high-visibility infrastructure challenges.
• Participate in a global on-call rotation.