Responsible
* Database Architecture Design & Optimization
* Design, deploy, and optimize cloud databases on Alibaba Cloud (RDS, PolarDB, Redis, MongoDB) and AWS (RDS, Aurora, ElastiCache, DynamoDB, RedShift).
* Select appropriate database types (relational/NoSQL/NewSQL) and service models (managed services vs. self-built clusters) based on business requirements.
* Operations & Monitoring
* Implement high availability (HA) and disaster recovery (DR) solutions, such as Alibaba Cloud cross-zone deployments, AWS Multi-AZ, and cross-region replication.
* Monitor database performance and health using cloud-native tools (Alibaba Cloud CloudMonitor, AWS CloudWatch) and third-party tools (Prometheus, Grafana).
* Performance Tuning & Incident Resolution
* Analyze slow queries, lock conflicts, and resource bottlenecks (CPU/IO/memory), optimizing SQL statements and index designs.
* Rapidly resolve production database incidents (e.g., replication lag, connection pool exhaustion, storage scaling).
* Security & Compliance
* Manage database access controls via Alibaba Cloud RAM policies and AWS IAM roles to ensure data security.
* Perform regular database upgrades and audit log analysis to comply with GDPR, Multi-Tier Cloud Security Certification (MLPS), and other regulations.
* Automation & Cost Management
* Automate database deployment and operations using Terraform, Ansible, or cloud-native tools (Alibaba Cloud ROS, AWS CloudFormation).
* Optimize cloud costs via auto-scaling, reserved instances, and storage tiering (e.g., AWS S3 Glacier).
* Cross-Team Collaboration
* Support development teams in database design reviews, SQL code standardization, and DevOps processes (e.g., database change management in CI/CD).
Requirements
* * Technical Skills
* Expertise in database services of at least one major public cloud (Alibaba Cloud or AWS), with familiarity in the other.
* In-depth understanding of core principles of mainstream databases (MySQL, PostgreSQL, Redis) and advanced SQL optimization/troubleshooting skills.
* Experience with database migration tools (AWS DMS, Alibaba Cloud DTS) and cross-cloud synchronization solutions.
* Experience Requirements
* 5+ years of DBA experience, including at least 2 years managing public cloud databases.
* Hands-on experience with large-scale (TB-level) databases, sharding, and read/write splitting.
* Experience leading cloud database migrations, DR drills, or hybrid cloud projects is preferred.
* Strong documentation skills for creating SOPs and contingency plans.
* Excellent communication skills to coordinate development, operations, and business teams.
* Alibaba Cloud ACP/ACE (Database) or AWS Certified Database - Specialty certifications preferred.
* Bachelor's degree or higher in Computer Science, Software Engineering, or related fields.
