Senior Database Administrator

Cbts; United States; Remoto; USD 110.000 - 165.000; Tempo pieno

Descrizione del lavoro

Cbts is seeking an experienced Database Administrator to manage SQL Server, Oracle, PostgreSQL, MySQL, and MariaDB across on-premises and cloud environments. The role covers installation, patching, performance tuning, backup/recovery, HA configurations, and security hardening.

You will drive migrations to OCI, AWS, and Azure, support data platform modernization, and collaborate with client teams on migrations and capacity planning. North American EST working hours are required.

Competenze

• 4+ years of hands-on database administration across multiple platforms (SQL Server, Oracle, PostgreSQL, MySQL, RDS).
• 3+ years of cloud database administration across OCI, AWS, Azure, or GCP.
• Experience in a managed services or professional services delivery environment.
• Ability to produce high-quality technical documentation and migration runbooks.

Mansioni

• Administer SQL Server, Oracle, PostgreSQL, MySQL, and MariaDB on-premises and in cloud environments.
• Perform patching, backup/recovery, high availability configurations, and security hardening.
• Lead database migrations to OCI, AWS, and Azure; contribute to platform modernization projects.
• Monitor environments, generate health checks, and provide performance benchmarking.
• Triage incidents, provide RCA reports, and manage vendor tickets on rotation.

Conoscenze

SQL Server

Oracle

PostgreSQL

MySQL

MariaDB

Cloud databases

Database migration

High availability

Monitoring tools

On-call support

Strumenti

Oracle Enterprise Manager (OEM) Cloud Control

Descrizione del lavoro

Key Responsibilities

• Administer Microsoft SQL Server environments on-premises and on cloud Always On Availability Groups (AAG), SQL Agent jobs, Database Mail, linked servers, Query Store performance tuning, SSIS/SSRS/SSAS support, and backup/recovery using native and/or 3rd party tools.
• Administer Oracle Database environments (production and non-production) across on-premises, Exadata, ODA, and on public and private Cloud— including RAC, ASM, Data Guard, RMAN backup/recovery, performance and SQL Tuning, and database security configurations. Configure and manage Oracle Enterprise Manager (OEM) Cloud Control.
• Administer Oracle, PostgreSQL, MySQL, MariaDB environments on-premises and on AWS RDS / Aurora, GCP Cloud SQL, and Azure Database — including replication topology (async, Group Replication, GTID), HA configuration, physical and logical backup/recovery, PITR, and performance tuning.
• Execute cloud database migrations — rehosting and replatforming workloads to OCI, AWS, and Azure SQL using native tools, and platform-specific migration services
• Administer OCI database services (Base Database, Exadata, Autonomous Database) and manage OCI tenancy resources
• Administer AWS database services — RDS, Aurora, and EC2-hosted databases — with S3 backup and CloudWatch monitoring.
• Manage Azure SQL Database, SQL Managed Instance, and Azure Database for PostgreSQL / MySQL; support GCP Cloud SQL and BigQuery as required
• Execute cloud database migrations Services on all major public and private cloud.
• Familiarity with monitoring cloud databases using OCI Monitoring, CloudWatch, Azure Monitor, and GCP Cloud Monitoring.
• Good understanding of Microsoft Fabric environments support such as Lakehouse, Warehouse, Data Pipeline, and Mirroring from SQL Server, Azure SQL, and Oracle.
• Assist data engineering teams with database connectivity, gateway configuration, and pipeline troubleshooting; dataset refresh, DirectQuery connections (SQL Server, Oracle, PostgreSQL), gateway management, and database query performance troubleshooting

Job Expectation

• Perform day-to-day database administration tasks for Oracle Database, Microsoft SQL Server, PostgreSQL, MySQL, and MariaDB — covering installation, configuration, patching, performance tuning, native backup and recovery, high availability (RAC, Always On, replication), disaster recovery, and security hardening in both on-premises and cloud environments.
• Monitor database environments proactively using applicable monitoring tools; deliver scheduled health checks, capacity planning reviews, performance trend analysis, and monthly operational reports (backup status, patch compliance, open incidents, and recommendations)
• Participate in client-facing migration projects, platform consolidations, and version upgrade engagements — conduct discovery and assessment workshops, design target-state cloud architectures, execute end-to-end migration deliverables, cutover planning, post-migration validation, and performance benchmarking
• Deliver Database migration and implementation projects — RMAN lift-and-shift to OCI, EBS cloning, adop patching, AutoConfig, and Data Guard setup
• Author and maintain technical documentation — as-built documents, migration runbooks, cutover plans, rollback procedures, and post-migration reports.
• Conduct client knowledge transfer and handover training post-delivery.
• Working North American Eastern Standard (EST/EDT) business hours is a must
• Participate in rotational on-call (after-hours and weekends); triage, diagnose, and resolve incidents; provide RCA reports; raise and manage vendor SRs and ServiceNow tickets.

Required Qualifications

Experience

• 4+ years of hands-on database administration experience across multiple platforms (SQL Server, Oracle, PostgreSQL, MySql, RDS)
• 3+ years of cloud database administration experience across at least two of: OCI, AWS, Azure, or GCP
• Proven experience working in a managed services model — multi-client, SLA-driven environment
• Experience contributing to professional services or consulting project delivery — database migrations, cloud adoption projects, or platform modernization engagements
• Demonstrated ability to produce high-quality technical documentation — architecture documents, migration runbooks, cutover plans, and post-migration reports

Must Have

• Solid foundation and Hands-on database administration experience across multiple database platforms (SQL Server, Oracle, PostgeSQL, Maria DB, MySQL) on-premises and on cloud.
• Experience in
• Good understanding of tenancy / accounts / subscriptions / projects, compartments / resource groups, VCN / VPC / VNet, subnets, NSGs / security groups / firewall rules, route tables, Bastion, Load Balancer, IAM, and Entra ID
• Strong experience of Azure, AWS, OCI, GCP databases