OverviewSenior Oracle Database Administrator (DBA) – emagineLocation: Lisbon, Portugal (Hybrid work - 2x week)Job Type: B2B ContractDuration: 12 months initial contract + extensionResponsibilities- Perform advanced performance tuning and optimization across Oracle, PostgreSQL, MSSQL, and Sybase environments.
- Deliver expert-level technical support to internal DBA teams and external client deployments.
- Ensure high availability, security, and resilience of all production and nonproduction database systems.
- Continuously monitor, analyze, and troubleshoot system and query-level performance bottlenecks.
- Collaborate with developers, DevOps, and infrastructure teams to design scalable, efficient database architectures.
- Participate in R&D initiatives by evaluating new database features and technologies for integration into the CV platform.
- Lead database migrations, version upgrades, and patch management processes.
- Establish and maintain robust documentation and best practice guidelines for database operations.Qualifications- 5+ years of experience as a professional DBA, with expert-level Oracle database administration.
- Hands-on experience with PostgreSQL, MSSQL, Sybase, and optionally MariaDB/MySQL.
- Deep knowledge of SQL scripting, query optimization, and execution plan analysis.
- Proven ability to conduct performance troubleshooting and root cause analysis in production environments.
- Solid understanding of Linux/Unix systems and shell scripting.
- Experience managing and supporting databases on cloud platforms, specifically Oracle Cloud Infrastructure (OCI) and Amazon Web Services (AWS).
Nice to Have- Familiarity with monitoring tools (e.G., Oracle Enterprise Manager, pgAdmin, etc.) and automation frameworks is a plus.
- Excellent communication skills and a team-oriented, proactive mindset.
- Oracle Certified Professional (OCP) or equivalent certifications.
- Experience working in agile/Scrum environments.
- Ability to engage with clients directly and provide consultation-level support.Other Details- Work Model: Hybrid work setup — 2 days/week onsite at Spaces, Marquês de Pombal, Lisbon.
- Join a specialized DBA team that emphasizes technical discussions and collaborative problem-solving.
- Work on both internal platforms and external client environments.
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