Senior Software Engineer, Fullstack

GRABTAXI HOLDINGS PTE. LTD.; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

A leading tech company in Singapore is seeking a Senior Full-stack Engineer to enhance driver partner experiences through innovative AI solutions. The role involves developing scalable systems and collaborating with cross-functional teams to optimize marketplace efficiency. Ideal candidates should have expertise in backend languages like Go and Python, as well as experience with cloud platforms like AWS and Azure. Join us in driving advanced technology for our partners.

Qualifications

• Strong foundation in computer science with experience in both relational and non-relational databases.
• 4+ years of back-end and cloud platform experience.
• Proficiency in creating technical documentation for cross-team collaboration.

Responsibilities

• Develop AI agents and chatbots using LLMs.
• Build scalable full-stack solutions.
• Write high-quality code in modern languages and frameworks.
• Deploy machine learning pipelines.
• Collaborate with cross-functional teams.
• Design infrastructure with Terraform.

Skills

Data structures

Algorithms

Multi-threading

Distributed systems

LLMs

LangChain

LangGraph

Backend languages

Frontend frameworks

Cloud platforms

Real-time data processing

Problem-solving

Technical documentation

Tools

Python

Go

Java

Next.js

Terraform

AWS

Azure

Flink

Kafka

Job description

Job Description

Get to Know the Team

The Fulfilment Tech Family drives Grab's mission to out-serve customers and partners across Southeast Asia's diverse marketplaces. We build high-throughput, real-time distributed systems powered by advanced machine learning, handling hundreds of millions of requests daily. Our goal? To deliver exceptional products and experiences that boost driver partner engagement, maximize efficiency in fulfilling customer orders—rain or shine—and create thriving marketplaces with optimal pricing loved by both partners and customers.

Get to Know the Role

We're looking for a Senior Full-stack Engineer to join our dynamic Fulfilment Tech Family.

You will create, implement, and scale innovative solutions leveraging advanced AI and machine learning technologies to enhance driver partner experiences and optimize marketplace efficiency.

You will report to the Engineering Manager and work onsite at Grab Office.

The Critical Tasks You Will Perform

• Develop AI agents and chatbots using LLMs, LangChain, and LangGraph to enhance driver experiences and solve real-world challenges.
• Build scalable full-stack solutions, including cloud-based backends and efficient web interfaces.
• Write high-quality code in modern languages (e.g., Python, Go) and frameworks, ensuring scalability and efficiency. Conduct code/design reviews.
• Deploy machine learning pipelines and integrate AI agents with fulfilment systems.
• Collaborate with cross-functional teams to implement features and assess business impact. Ensure smooth mobile integration.
• Design and manage infrastructure with Terraform and cloud platforms like AWS/Azure.
• Participate in on-call rotations, perform root cause analysis, and contribute to post-mortems.
• Work in a regional setup, collaborating across teams and cultures.

Qualifications

What Essential Skills You Will Need

• Strong foundation in computer science: data structures, algorithms, multi-threading, distributed systems, relational/non-relational databases.
• Expertise in LLMs, LangChain, LangGraph for conversational AI development.
• Proficient in backend languages (e.g., Go, Python, Java) with focus on Go and Python.
• Experience with modern frontend frameworks (e.g., Next.js), SSR concepts (SSR/SSG), and protocols (WebSocket, Streamable HTTP, gRPC).
• 4+ years of cloud platform experience (AWS/Azure) and scalable backend deployment.
• Advocate for shift-left testing with unit, integration, and automated testing.
• 4+ years in real-time data processing with Flink/Kafka or similar tools.
• Experienced in stakeholder collaboration across teams/regions.
• Strong problem-solving and system design skills for scalability and stability.
• Proficient in creating concise technical documentation for cross-team collaboration.