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Senior oracle database administrator (dba)

Lisboa
emagine
DBA
Anunciada dia A 12 h atrás
Descrição

Senior Oracle Database Administrator (DBA)

Join to apply for the Senior Oracle Database Administrator (DBA) role at emagine


Senior Oracle Database Administrator (DBA)

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Join to apply for the Senior Oracle Database Administrator (DBA) role at emagine

Job Type: B2B Contract


Location: Lisbon, Portugal (Hybrid work - 2x week)


Duration: 12 months initial contract + extension

Main Responsibilities

* 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.

Job Description:

Job Title: Senior Oracle DBA

Job Type: B2B Contract

Location: Lisbon, Portugal (Hybrid work - 2x week)

Duration: 12 months initial contract + extension

Main Responsibilities

* 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.

Key Requirements

* 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.


Seniority level

* Seniority level

Mid-Senior level


Employment type

* Employment type

Full-time


Job function

* Job function

Information Technology
* Industries

IT Services and IT Consulting

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