Senior Full Stack Engineer – Advertising Platform (Vietnamese speaker)

We are looking for an experienced **Full Stack Engineer** to work on a production advertising platform. The role involves frontend, backend, cloud infrastructure, and data-heavy applications. ### Responsibilities * Build and maintain frontend applications using **React and TypeScript**. * Develop scalable APIs and backend services using **Node.js**. * Work with **Microsoft SQL Server (MSSQL)** for application and reporting data. * Deploy and maintain containerized applications using **AWS ECS/Fargate**. * Use **AWS Athena and S3** to query and process large advertising datasets. * Build dashboards with search, filtering, pagination, reporting, and analytics. * Optimize application, API, SQL, and cloud performance. * Troubleshoot production issues using AWS monitoring and logging tools. * Use **Claude / Claude Code** to support development, debugging, refactoring, testing, and code review. ### Required Skills * Strong **React, Node.js, and TypeScript** experience * Strong **AWS** experience * Hands-on experience with **ECS/Fargate** * Experience with **AWS Athena and S3** * Strong **MSSQL and SQL** skills * Docker and CI/CD experience * REST API development * Experience building scalable production applications * Experience using **Claude or Claude Code** for software development ### Nice to Have * Advertising / AdTech experience * AWS Lambda, CloudWatch, SQS, EventBridge, and ECR * Large dataset processing and performance optimization * Experience with complex dashboards and reporting platforms We are looking for a developer who can work independently, understand an existing codebase quickly, and take ownership of features from development through production.