Senior Software Engineer

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Senior Software Engineer in Others

Airwallex
Full time
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10/09/2026
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Singapore, Singapore

Responsibilities

Build and scale the machine learning platform powering risk decisioning.
Design reliable data and model infrastructure for model development, deployment, monitoring, and improvement.
Productionize machine learning workflows and improve experimentation and decisioning speed and quality.
Partner with machine learning engineers, data scientists, product managers, and risk specialists to build dependable fraud and risk systems.
Optimize GPU-based training and inference performance and support large-scale, low-latency production infrastructure.
Own the platform roadmap and outcomes while collaborating across countries and time zones.

Requirements

5+ years of software engineering experience, including at least 3+ years focused on model training infrastructure, model serving systems, or MLOps platforms.
Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.
Hands-on experience with PyTorch, TensorFlow, JAX, and model training execution engines.
Strong proficiency in Python, Java, or C++.
Experience with Kubernetes, Ray, Kubeflow Pipelines, or Airflow for distributed orchestration and workflow management.
Understanding of GPU architecture, hardware acceleration, and GPU-based training or inference optimization.
Preferred: experience with model acceleration frameworks and Large Language Models.
Preferred: proficiency with performance profiling and bottleneck identification using NVIDIA Nsight Systems.
Preferred: experience with AWS or GCP and large-scale, low-latency production machine learning infrastructure.

Benefits

Based in Singapore with an in-office work arrangement five days per week.
Occasional flexibility in working hours may be needed to collaborate across countries and time zones.

Airwallex

Airwallex is a unified payments and financial platform designed specifically for global businesses. By combining proprietary infrastructure with innovative software, we provide integrated solutions for business accounts, payments, and treasury management, supporting over 200,000 businesses worldw...

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