Senior Payments Architect—Scale, Reliability & Impact

GrabTaxi Holdings Pte. Ltd.; Singapore; On-site; SGD 220,000 - 420,000; Full time

Benefits offered by this job

Term Life Insurance

Medical Insurance

GrabFlex

Parental leave

Birthday leave

LASA volunteering

Job summary

Grab is Southeast Asia's leading superapp. As Principal Engineer for FundsCore at Grab, you will lead the architecture and delivery of regional-scale payments platforms powering our consumer, driver, merchant, and enterprise ecosystems across Southeast Asia.

You will design fault-tolerant, compliant, and cost-efficient services, set the technical vision, mentor engineers, and collaborate with product, risk, compliance, finance, operations, and country teams to drive multi-quarter initiatives and

Qualifications

• :

Responsibilities

• Own design and delivery of mission-critical payment systems with high availability, low latency, and strict correctness.
• Define core payments architecture and drive platformization with stable APIs, event contracts, data models, and versioning.
• Build resilient integrations to card networks, banks, APMs, and real-time rails that tolerate changes and outages.
• Champion reliability, observability, security, compliance, scalability, operability, and cost with SRE and Security, and lead chaos tests, DR, and incidents.
• Lead regionalization across currency, localization, regulation, and scheme needs with safe rollouts and migrations.
• Make pragmatic, data-driven decisions that balance impact, speed, and maintainability, and align stakeholders on trade-offs.
• Author and review design docs/RFCs, lead architecture reviews, set coding/testing standards, and elevate service.
• Lead by example with prototypes and critical-path builds, mentor senior and staff engineers, and scale best practices and culture.

Skills

Java

Go

Python

Distributed systems

Microservices

Payments

SQL/NoSQL

AWS/GCP/Azure

Leadership

DevOps/SRE

Education

Bachelor's in Computer Science

Master's preferred

Tools

CI/CD

IaC

KMS

PCI DSS

Job description

Grab is Southeast Asia's leading superapp. As Principal Engineer for FundsCore at Grab, you will lead the architecture and delivery of regional-scale payments platforms powering our consumer, driver, merchant, and enterprise ecosystems across Southeast Asia.

You will design fault-tolerant, compliant, and cost-efficient services, set the technical vision, mentor engineers, and collaborate with product, risk, compliance, finance, operations, and country teams to drive multi-quarter initiatives and