Cloud Database Administrator - AWS

About the Role: We are looking for a Database Administrator (DBA) to design, implement, and maintain database environments across multiple platforms, including AWS Redshift, Microsoft SQL Server (MSSQL), PostgreSQL, and Oracle. The ideal candidate is a hands-on database expert who ensures the performance, availability, security, and integrity of business-critical data systems, and driving best practices across the organization. Responsibilities: • Administer, configure, and maintain database systems across AWS Redshift, MSSQL, PostgreSQL, and Oracle environments, ensuring high availability and optimal performance. • Monitor database performance, proactively identify bottlenecks, and implement tuning strategies including query optimization, indexing, and partitioning. • Lead capacity planning and scalability initiatives, including cloud resource optimization for AWS Redshift environments. • Design and implement backup, recovery, and disaster recovery strategies to safeguard data integrity and minimize downtime. • Plan and execute database upgrades, patches, and migrations with minimal disruption to production systems. • Troubleshoot and resolve complex database incidents, performing root cause analysis and implementing preventive measures. • Manage database security, including user access controls, roles, encryption, and compliance with data governance and regulatory requirements. • Establish and enforce database standards, policies, and best practices across the organization. • Develop and maintain documentation for database architecture, configurations, standard operating procedures, and runbooks. • Automate routine database administration tasks using scripting languages (e.g., Python, Bash, PowerShell) and infrastructure-as-code tools. • Mentor and provide technical guidance to junior DBAs. • Participate in an on-call rotation to support critical production systems. Requirements: • Bachelor's degree in Computer Science, Information Systems, or a related field, or equivalent hands-on experience. • 3 years of progressive DBA experience, including hands-on administration of at least two of the following: AWS Redshift, MSSQL, PostgreSQL, Oracle. • Proven experience designing and executing backup, recovery, and disaster recovery strategies in production environments. • Strong grounding in performance tuning: query optimization, indexing strategy, partitioning, and capacity planning. • Working knowledge of database security practices — access control, roles, encryption at rest/in transit, and audit/compliance requirements. • Scripting proficiency in Python, Bash, or PowerShell, with experience automating routine DBA tasks; familiarity with infrastructure-as-code tools (e.g., Terraform, CloudFormation) is a plus. • One of the relevant certifications is a must (e.g., AWS Certified Database - Specialty, Oracle OCP, Microsoft Certified: Azure Database Administrator Associate). • Experience mentoring junior engineers and leading technical best-practice initiatives. • Strong written communication skills for documentation, SOPs, and runbooks. • Comfortable participating in an on-call rotation. Nice to Have: • Experience operating in regulated or public-sector environments with strict data governance and compliance requirements. • Exposure to multi-account/multi-tenant cloud environments. • Prior experience leading migrations or major version upgrades with minimal production disruption.