Senior Backend Engineer, AI

Airwallex • San Francisco, CA

112d

About The Position

You’ll design the backbone of our intelligent finance systems — scalable services, resilient APIs, and thoughtful data models. Our backend is primarily Python on GCP, and your work will ensure we can move quickly while maintaining enterprise-grade reliability and security.

Requirements

• 5+ years backend experience with Python at scale.
• Deep knowledge of SQL/NoSQL database design.
• Experience with distributed systems, event-driven architectures, or microservices.
• Familiarity with GCP services (Pub/Sub, Cloud Run, Cloud SQL, BigQuery, KMS, etc.).
• Strong grasp of security and compliance best practices.
• Passion for building the backend that powers intelligent products.

Responsibilities

• Architect distributed systems on GCP for high-volume, high-sensitivity data.
• Build well-structured APIs and services in Python to power AI applications and frontends.
• Own schema and data modeling for long-term growth and flexibility.
• Create infrastructure that enables rapid iteration while ensuring reliability.
• Collaborate with AI engineers to build systems where data improves models and models improve products.

What This Job Offers

• Career Level: Mid Level
• Number of Employees: 1,001-5,000 employees