We are seeking a mid/senior- level Application Database Administrator to support our Agile sprint teams and manage production database environments. The ideal candidate brings solid, hands-on expertise with MySQL and PostgreSQL, strong data modeling capabilities, and a demonstrated track record in performance tuning and production support. This role works closely with development teams throughout the sprint lifecycle and is expected to operate with a good degree of independence, mentor junior team members, and contribute to database architecture decisions. Key Responsibilities Sprint Team Support • Actively participate in Agile/Scrum ceremonies (sprint planning, standups, retrospectives, backlog grooming) as the database subject matter expert • Review user stories and technical requirements, providing database design input and effort estimates • Partner with developers to translate application requirements into efficient, scalable database structures • Provide timely turnaround on database changes to keep sprint deliverables on track • Guide and review the work of junior DBAs or developers on database-related tasks Data Modeling • Independently design and maintain logical and physical data models using tools such as Erwin • Develop conceptual data models aligned with business and application requirements • Ensure models support normalization standards, referential integrity, and long-term scalability • Own data dictionaries, schemas, and entity relationship diagrams (ERDs) • Lead data model reviews with development, architecture, and business stakeholders • Identify and resolve data model conflicts across multiple applications/systems Database Administration (MySQL & PostgreSQL) • Install, configure, and maintain MySQL and PostgreSQL instances across dev, test, staging, and production • Manage database schemas, users, roles, and security/access controls • Own backup, restore, patching, and upgrade strategy and execution • Design, implement, and maintain replication, high availability, and disaster recovery solutions • Evaluate and recommend improvements to database architecture and standards Performance Tuning • Proactively monitor database performance metrics and identify bottlenecks before they impact users • Analyze and optimize complex, slow-running queries, indexes, and execution plans • Tune database configuration parameters for optimal throughput and resource utilization • Lead capacity planning and scalability assessments for growing application workloads • Establish performance benchmarks and monitoring best practices Production Support • Serve as senior/primary DBA support for production systems, including on-call rotation • Lead troubleshooting and resolution of complex database incidents, outages, and performance degradation • Drive root cause analysis on production issues and implement preventive/long-term fixes • Own database change management for deployments and releases, minimizing risk and downtime • Develop and maintain runbooks, SOPs, and incident documentation • Serve as an escalation point for critical/high-severity database issues Required Qualifications • Bachelor's degree in Computer Science, Information Systems, or related field (or equivalent experience) • 5+ years of hands-on experience as a Database Administrator supporting MySQL and PostgreSQL in production environments • Demonstrated proficiency with data modeling tools (Erwin or similar, e.g., ER/Studio, dbt, Lucidchart) • Strong, advanced SQL skills with proven experience in query optimization and performance tuning • Experience supporting Agile/Scrum development teams as an embedded DBA • Deep understanding of backup/recovery, security, replication, and high-availability architecture • Proven experience providing production support and resolving critical incidents under pressure • Experience with database change management and release processes • Ability to work independently, prioritize competing demands, and communicate effectively with both technical and business stakeholders Preferred Qualifications • Experience with cloud database platforms (AWS RDS/Aurora, Azure Database, GCP Cloud SQL) • Scripting/automation experience (Python, Bash, PowerShell) for routine DBA tasks • Experience with monitoring tools (Percona Monitoring and Management, pgAdmin, Datadog, New Relic) • Prior experience mentoring junior DBAs or leading small technical initiatives • Knowledge of ETL processes and data integration pipelines • Experience with additional RDBMS platforms (Oracle, SQL Server) a plus • Experience contributing to database architecture standards or governance Key Skills • MySQL & PostgreSQL Administration (Advanced) • Data Modeling (Erwin) • Performance Tuning & Query Optimization • Production Incident Support & RCA • Agile/Scrum Collaboration • Backup, Recovery & High Availability • Mentorship & Cross-Team Communication