As the Principal Quality Engineer at GHN, you will join a high-impact, technology-driven team responsible for the next-generation GHN Platform — the integrated system powering shipment operations, logistics routing, delivery execution, enterprise services, and customer-facing experiences across Vietnam. You will:Define and lead the overall quality strategy, standards, and practices for the GHN Platform — ensuring our logistics, delivery, tracking, and operational systems meet the highest standards of reliability, security, performance, scalability, and compliance.Act as a strategic partner across product, engineering, operations, data, and business teams to drive test planning, automation and continuous improvement of end-to-end business flows — from order intake, routing, delivery execution, real-time status updates, exception handling, through to returns and reporting.Architect and oversee the implementation of a robust automation and monitoring framework: integration tests, API tests, end-to-end workflow tests, observability tooling, scenario/failure-mode coverage for all major platform services and integrations (internal systems, partner APIs, mobile/web apps).Establish and embed performance, stress, scalability and resiliency testing practices and governance to ensure the GHN Platform can handle high transaction volumes, rapid growth, peak-period bursts and evolving business demands.Champion advanced quality engineering practices: shift-left testing, “testability by design”, CI/CD-pipeline integration, production observability, incident management feedback loops, and quality data-driven decision-making.Define, monitor and report on platform quality KPIs (e.g., service-level metrics, defect leakage rate, automation coverage, system-uptime, mean-time-to-detect/fix, cycle time), surface risk trends, drive root-cause analysis and preventative actions, and elevate the QE craft across the organization.Serve as a mentor and technical leader: guide and develop other quality engineers and QA-team members, foster a culture of quality ownership across product & engineering teams, evangelize best practices and practise hands-on problem solving and tooling improvements.