Database AdministratorLocation: Denver, CO (Onsite)Duration: Long-termSkills:Database design and data modelingDatabase migrations and modernizationPerformance tuning and troubleshootingBackup, recovery, replication, and HA configurationsHands-on experience with AWS cloud platform.Knowledge of indexing, partitioning, clustering, and sharding concepts.Experience with monitoring tools and database health checks.Scripting/automation experience using Python, Shell, or PowerShell.MUST HAVE Oracle Database AdministrationMUST HAVE MongoDB AdministrationStrong problem-solving and analytical skills.Excellent communication and stakeholder management skills.Experience:10 to 15 years of DBA experience supporting enterprise-scale databases.Strong Expertise In:Oracle Database AdministrationMongoDB AdministrationAmazon DynamoDBStrong SQL, PL/SQL, and query optimization skills.Experience With:Database design and data modelingDatabase migrations and modernizationPerformance tuning and troubleshootingBackup, recovery, replication, and HA configurationsHands-on experience with AWS cloud platform.Responsibilities:Database Administration & Support:Administer, maintain, monitor, and support Oracle, MongoDB, and DynamoDB environments.Manage database installations, upgrades, patches, backups, recovery, and replication strategies.Ensure database availability, reliability, and security across production and non-production environments.Implement database standards, policies, and best practices.Database Design & Architecture:Design scalable and high-performing relational and NoSQL database architectures.Create logical and physical data models based on application requirements.Optimize schema design, indexing strategies, partitioning, and storage configurations.Support microservices and distributed data architectures.Database Migration & Modernization:Lead database migration projects from legacy platforms to Oracle, MongoDB, or DynamoDB.Perform schema conversion, data migration, validation, and cutover planning.Support cloud migration initiatives and modernization efforts.Experience with migration tools and ETL/data integration processes.Performance Tuning & Optimization:Analyze and resolve database performance bottlenecks.Tune SQL queries, stored procedures, indexes, and execution plans.Optimize MongoDB collections, aggregations, sharding, and replication.Improve DynamoDB throughput, partition key design, auto scaling, and cost optimization.Monitor database health using performance monitoring tools.High Availability & Disaster Recovery:Configure and maintain HA/DR solutions including Oracle RAC/Data Guard, MongoDB replica sets/sharding, and DynamoDB global tables.Develop and test backup and recovery procedures.Ensure business continuity and disaster recovery readiness.Cloud & Automation:Work with AWS cloud services related to databases and infrastructure.Automate database administration tasks using scripting tools such as Shell, Python, or PowerShell.Support Infrastructure as Code (IaC) and CI/CD integration where applicable.Collaboration & Governance:Work closely with application developers, architects, DevOps, and security teams.Participate in code reviews and database design discussions.