Senior AI Infrastructure Backend Engineer

Shopee; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Shopee is seeking a backend engineer in Singapore to design high-performance gateway services and AI agent infrastructure. You will build foundational capabilities for agents, create unified data access layers, and advance the tech stack toward a unified backend architecture.

You will work on scalable backend systems, optimize token costs and latency, and collaborate with cross-functional teams to drive efficiency and reliability across Shopee's backend services.

Qualifications

• Bachelor's degree in CS or related field.
• At least 2 years of backend experience.
• Strong coding passion and problem-solving mindset.
• Good understanding of AI/LLM-based agents and practical use cases.
• In-depth knowledge of data structures, algorithms, operating systems and networks.

Responsibilities

• Design and build Gateway Services with high performance and reliability.
• Develop AI agent foundations: execution environments and memory/context services.
• Create unified data access layers and backend libraries.
• Improve agent execution safety, isolation, and latency.
• Collaborate with other Tech Teams on company-wide efficiency goals.

Skills

Go

Python

C++

Java

AI knowledge

Problem solving

Logical thinking

Education

Bachelor's or higher degree in Computer Science or related fields

Tools

Linux development

Multi-threading

TCP/UDP/HTTP

Distributed systems

Job description

Shopee is seeking a backend engineer in Singapore to design high-performance gateway services and AI agent infrastructure. You will build foundational capabilities for agents, create unified data access layers, and advance the tech stack toward a unified backend architecture.

You will work on scalable backend systems, optimize token costs and latency, and collaborate with cross-functional teams to drive efficiency and reliability across Shopee's backend services.