Senior Backend Engineer — AI Gateway (Go/Python) — Onsite PJ

GrabTaxi Holdings Pte. Ltd.; Petaling Jaya; On-site; MYR 180,000 - 240,000; Full time

Benefits offered by this job

Term Life Insurance

Medical Insurance

GrabFlex benefits package

Parental leave

Birthday leave

Grabber Assistance Programme

Job summary

Grab is seeking a Senior Software Engineer to join the Applied AI Team, serving as the technical backbone of the GrabGPT Gateway. You’ll build secure, scalable gateway services that route 60+ models from providers like OpenAI and Google Vertex AI, enforce authentication, and track usage and costs.

This role sits onsite at the Grab office in Petaling Jaya, Malaysia. You will own multi-provider routing, cost-aware capacity management, and observability, collaborating with teams to enable AI

Qualifications

• 3+ years of professional software development experience.
• Proficiency in server-side programming (Go and Python).
• Hands-on experience with LLMs and related tooling.
• Cloud, containerization and CI/CD experience.
• Strong understanding of data structures and distributed systems.
• Experience with relational databases.

Responsibilities

• Develop gateway features end-to-end: provider integrations, unified API endpoints, model onboarding, API key and identity management, rate limiting, tiering, and cost tracking.
• Design multi-provider LLM routing systems with OpenAI-compatible API surfaces.
• Build scalable backends in Go and Python for low-latency LLM traffic gateway.
• Operate platform reliability, governance layers, rate limiting, authentication, and cost tracking pipelines.
• Manage CI/CD and cloud resources across staging and production, including migrations to EKS.
• Advocate for test-driven development and mentor junior engineers.
• Ensure system reliability for a Tier-critical service and participate in on-call rotations.

Skills

Go (Golang)

Python

LLMs

LangChain

LangGraph

AWS

Kubernetes

CI/CD

Data structures

Automated testing

Tools

MySQL

PostgreSQL

Oracle

Job description

Grab is seeking a Senior Software Engineer to join the Applied AI Team, serving as the technical backbone of the GrabGPT Gateway. You’ll build secure, scalable gateway services that route 60+ models from providers like OpenAI and Google Vertex AI, enforce authentication, and track usage and costs.

This role sits onsite at the Grab office in Petaling Jaya, Malaysia. You will own multi-provider routing, cost-aware capacity management, and observability, collaborating with teams to enable AI