DataBase Administrator

5+ years of hands-on experience as a DBA in production-grade, distributed environments. Deep knowledge of Aurora (PostgreSQL), MongoDB or Scylla. Proven expertise in managing databases across major cloud platforms (Amazon Web Services, Google Cloud Platform, Yandex Cloud) and DBaaS offerings like MongoDB Atlas. Advanced expertise in SQL query tuning, schema optimization, and indexing strategies. Strong experience with replication, partitioning, and clustering in high-availability systems. Proficiency in backup, restore, and failover mechanisms in multi-AZ and multi-region setups. Solid skills in automation and scripting (Python, Bash, Go). Familiarity with Kubernetes-based deployments and modern observability stacks (Prometheus, Datadog, AWS CloudWatch).

Architect and optimize database infrastructures for large-scale, high-traffic workloads. Administer and maintain clusters across AWS Aurora (PostgreSQL), MongoDB, Scylla, Redis, and ClickHouse. Design and operate backup, recovery, and disaster recovery strategies. Automate operational processes using infrastructure-as-code, Ansible, and Gitlab CI. Optimize performance at all layers: schema design, query execution, indexing, caching, and storage. Configure and manage replication and sharding strategies for high availability and geo-distribution. Ensure compliance with SOC 2, HIPAA, GDPR, and database security best practices. Partner with engineering teams to design data solutions and mentor junior DBAs.