Job description

The Senior DBA role focuses on architecting, deploying, and managing highly available, distributed MySQL 8.x database clusters directly on AWS EC2 instances for a global fintech platform operating 24×7 high-transaction environments. The role requires deep expertise in designing database architectures using MySQL clustering solutions such as InnoDB Cluster, ensuring high availability, disaster recovery, and continuous performance tuning. Responsibilities include managing multiple environments including Development, Test, QA, and Production databases while implementing an ‘Everything As Code’ approach across infrastructure provisioning, configuration management, monitoring, and scalability. The DBA will work extensively with AWS infrastructure components such as EC2 instance types, EBS volume optimization, VPC networking, Security Groups, and IAM to ensure secure and scalable database operations. The role includes ownership of Linux OS-level performance tuning, patching, upgrades, and system troubleshooting. It requires deep knowledge of database architecture including partitioning, replication topologies, OLTP, OLAP, distributed transactions, and advanced security configurations. The position emphasizes performance optimization through SQL tuning, query optimization, and proactive capacity planning for exponential global growth. The DBA will collaborate closely with development teams to resolve database issues, optimize complex queries, and enforce best practices for database changes. The role includes implementing automation frameworks using Infrastructure as Code tools such as Terraform, Ansible, Chef, Puppet, or CloudFormation to ensure scalable and stable database environments. Additional exposure to MongoDB is required for supporting NoSQL workloads. The position also involves operational reliability responsibilities including on-call support, system monitoring, and ensuring continuous uptime of mission-critical financial systems within a global production environment.