Senior Software Engineer – Global Infra & Platform

airwallex (singapore) pte. ltd.; Singapore; On-site; SGD 140,000 - 210,000; Full time

Job summary

Airwallex is hiring for a senior backend engineer to build scalable, high-performance infrastructure for a global fintech platform. You’ll work on routing, gateways, and unified services, leveraging Kubernetes, Istio, and cloud platforms to deliver reliable, secure APIs.

Strong backend skills across Java, Go, Rust, Python required. Join a team driving architectural excellence with a focus on performance, security, and global resilience, impacting Airwallex’s growth across APAC, Europe, and the

Qualifications

• Bachelor degree or above in computer science or engineering related majors.
• 5+ years of experience in modern engineering practices focused on CI and QA.
• Strong proficiency in backend languages (Java, Go, Rust, Lua, Python).
• Familiarity with cloud services (AWS, GCP, Aliyun) and infra tools (Kubernetes, Docker, Istio).
• Experience with PostgreSQL, Redis, Elasticsearch; performance and data consistency in distributed systems.
• Knowledge of API lifecycle management and API security best practices.

Responsibilities

• Build and refine a cutting-edge application infrastructure to remove bottlenecks and accelerate innovation.
• Tackle high-scale, organization-wide problems using the latest technologies (Reactive, Temporal, vector databases).
• Guide long-term architectural decisions for scalability, efficiency, and global resilience.
• Collaborate with top engineers to deliver mission-critical systems and drive Airwallex’s global growth.

Skills

Backend languages

API gateway & traffic management

Cloud services

Distributed systems

Security best practices

Education

Bachelor's degree in CS/Engineering

Tools

Kubernetes

Docker

Istio

NGINX/OpenResty/Envoy

PostgreSQL

Redis

Elasticsearch

Job description

Airwallex is hiring for a senior backend engineer to build scalable, high-performance infrastructure for a global fintech platform. You’ll work on routing, gateways, and unified services, leveraging Kubernetes, Istio, and cloud platforms to deliver reliable, secure APIs.

Strong backend skills across Java, Go, Rust, Python required. Join a team driving architectural excellence with a focus on performance, security, and global resilience, impacting Airwallex’s growth across APAC, Europe, and the