Airwallex

Staff/Senior Backend Engineer

Airwallex

full-time

Posted on:

Location Type: Hybrid

Location: San FranciscoCaliforniaUnited States

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Salary

💰 $150,000 - $299,000 per year

Job Level

About the role

  • Design and operate distributed, event-driven systems that process high-volume, high-sensitivity financial data with strict correctness and latency guarantees.
  • Build typed, production-grade APIs and services in Python (FastAPI + Pydantic) that power agentic workflows, AI copilots, and real-time financial infrastructure.
  • Own data architecture end-to-end schema design, event models, ledger primitives, and storage layers optimized for auditability, traceability, and scale.
  • Develop resilient infrastructure primitives (queues, retries, idempotency, observability, backpressure handling) that let teams ship fast without sacrificing reliability.
  • Work at the intersection of systems + AI, building feedback loops where product data continuously improves models and models autonomously improve system behavior.
  • Ship platform foundations, not one-off features internal frameworks, SDKs, and tooling that accelerate every engineer in the org.
  • Partner closely with ML + product teams to productionize research-grade ideas into real customer-facing systems.
  • Help define the architecture of an AI-native financial stack not bolting AI onto software, but designing software assuming AI is a first-class runtime.

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.
Benefits
  • US-based employees are eligible to participate in medical, dental, and vision insurance
  • 401(k) plan
  • short-term and long-term disability
  • basic life insurance
  • well-being benefits
  • 20 paid days of vacation
  • 12 paid days of company holidays in a calendar year.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonFastAPIPydanticSQLNoSQLdistributed systemsevent-driven architecturesmicroservicesdata architectureAPI development
Soft Skills
collaborationproblem-solvingreliabilityinnovationcommunication