
Senior Database Administrator, Oracle, PostgreSQL, AWS
Posted Sep 29

Posted Sep 29
This is a fully remote position, open to applicants in United States.
• Oversee production Oracle environments and AWS-managed databases, including PostgreSQL and MySQL.
• Install, configure, patch, upgrade, administer, and troubleshoot Oracle 19c and later versions across development, test, and production settings.
• Manage and enhance Amazon RDS for Oracle, PostgreSQL, and MySQL, as well as Oracle on Amazon EC2 where applicable.
• Establish database permissions, policies, standards, and procedures ensuring secure connectivity, availability, and data integrity.
• Plan and implement migrations from on-premise data centers to AWS, encompassing runbooks, cutover and rollback strategies, data validation, and post-migration confirmation.
• Facilitate Oracle-to-Oracle and Oracle-to-PostgreSQL/open-source modernization efforts.
• Optimize database and SQL performance using AWR, ASH, execution plans, indexing, memory and storage configuration, along with PostgreSQL/MySQL performance tools.
• Design and uphold backup, recovery, high availability, and failover strategies utilizing RMAN, Data Guard, RAC, ASM, Multi-AZ, snapshots, automated backups, and replication.
• Conduct regular disaster recovery testing.
• Secure databases in accordance with NIST SP 800-53 controls and DISA STIGs, which includes account and role management, auditing, logging, encryption, and Oracle TDE.
• Assist with ATO, vulnerability remediation, and compliance initiatives.
• Monitor database health, capacity, availability, replication, storage, backups, and performance using Oracle Enterprise Manager, AWS CloudWatch, and other enterprise monitoring solutions.
• Address incidents and spearhead root cause analysis.
• Manage and optimize Amazon Redshift along with other supported data warehouse solutions.
• Automate administration, operational checks, and maintenance using Bash, Python, SQL, and PL/SQL.
• Provide support to application teams with schema modifications, releases, data fixes, query optimization, and production troubleshooting through change-control procedures.
• Generate technical documentation, architecture details, migration and recovery runbooks, operating procedures, and system security plan inputs.
• Collaborate with platform engineers, application teams, data teams, and cybersecurity personnel.
• U.S. citizenship is required.
• Must be able to obtain and maintain a CBP Public Trust background investigation.
• A minimum of eight (8) years of database administration experience supporting production systems.
• Extensive hands-on experience as an Oracle DBA.
• Practical knowledge of Oracle 19c, RAC, Data Guard, RMAN, and ASM.
• Strong experience in PostgreSQL administration.
• Familiarity with MySQL in production or AWS-managed environments.
• Demonstrated experience in database and SQL performance tuning, including Oracle AWR/ASH analysis and query/index optimization.
• Experience with Amazon RDS and the migration of databases between on-premise and cloud environments.
• Profound understanding of database backup, recovery, failover, disaster recovery, security, and high availability.
• Practical knowledge of Linux/Unix administration and shell scripting.
• Experience in database automation using Bash, Python, SQL, or PL/SQL.
• Background in troubleshooting complex production issues across databases, applications, operating systems, storage, networking, and cloud services.
• Ability to work remotely on East Coast hours and travel approximately once per quarter.
• A bachelor's degree in a related field is preferred; relevant experience may substitute for a degree.
• Oracle Certified Professional (OCP) and AWS certification are beneficial.
• Experience with Amazon RDS for Oracle, PostgreSQL, and MySQL; Oracle on Amazon EC2; AWS Database Migration Service; or Oracle GoldenGate is desirable.
• Experience migrating Oracle workloads to PostgreSQL or other open-source databases is desirable.
• Experience with Amazon Redshift, enterprise data warehouses, and large-scale data integration or analytics workloads is desirable.
• Familiarity with AWS CloudWatch and enterprise database monitoring and alerting platforms is desirable.
• Experience with NoSQL databases and optimizing application/data-access patterns across relational and NoSQL platforms is desirable.
• Experience supporting DHS or CBP systems, or other federal agencies under an ATO, is desirable.
• A current DHS Public Trust is preferred.
• Flexible remote work arrangement.
• Travel approximately once per quarter.
• Immediate start following a favorable suitability determination and customer onboarding.
• Exposure to AWS, Azure, and Google Cloud projects.
• Work on a four-year U.S. Customs and Border Protection program.
• Opportunities for professional development through mission-critical cloud modernization, security, compliance, DevOps, and data analytics initiatives.
Miratech
Miratech
Miratech
Miratech
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