Senior Oracle Database Administrator

About the Position

We are looking for a highly skilled Senior Oracle Database Administrator to support mission-critical database environments in Lisbon.

This hybrid role is ideal for someone with deep hands-on experience in Oracle technologies, strong performance tuning capabilities, and a structured, collaborative approach to database operations. You will work closely with infrastructure partners, development teams, and technical and non-technical stakeholders to help ensure the stability, security, resilience, and efficiency of production database environments.

Responsibilities

• Manage, maintain, and optimise Oracle database environments in production.
• Implement and support high-availability and disaster recovery solutions using Oracle RAC, Data Guard, and RMAN.
• Perform advanced performance tuning, query optimisation, compression, and resource management.
• Support Exadata-related optimisation and database performance initiatives.
• Ensure compliance with security standards, including Transparent Data Encryption, auditing, and authentication controls.
• Troubleshoot complex database issues and communicate findings clearly to technical and non-technical stakeholders.
• Collaborate with development, infrastructure, and operational teams to support application and platform initiatives.
• Contribute to continuous improvement across database technologies, operational processes, and engineering standards.
• Support regulated environments and ensure alignment with applicable technical and security practices.
• Contribute across multiple database technologies where required.

Requirements

• 5+ years of hands-on experience with Oracle databases in production environments.
• Strong expertise in database performance tuning, compression, and resource optimisation.
• Strong knowledge of Oracle RAC, Data Guard, RMAN, and Oracle Enterprise Manager.
• SQL and PL/SQL scripting experience is mandatory.
• Experience with Exadata concepts, including CPU optimisation, compression techniques, and query tuning.
• Strong Linux/Unix knowledge.
• Working knowledge of Windows environments.
• Experience with Kerberos authentication and Oracle Client upgrades.
• Knowledge of Transparent Data Encryption, auditing, and compliance controls.
• Strong troubleshooting and problem-solving skills.
• Ability to collaborate effectively with both technical and non-technical stakeholders.
• Professional English proficiency at C1 level, written and spoken.

Nice to Have

• Hands-on experience with ExaCC, ZFS, and ZDLRA.
• Knowledge of Azure SQL, PostgreSQL, Azure Synapse, or DB2.
• Experience with Oracle SQL Developer and Toad for Oracle.
• Exposure to Jenkins, UrbanCode Deploy, Qlik Replicate, Git/Bitbucket, ServiceNow, Jira, or DBeaver.
• Oracle Certified Professional or equivalent certification.
• French and/or Dutch language skills.
• Experience working in regulated environments such as financial services.

Qualifications

• University degree in Computer Science, Engineering, or a comparable technical field.

Additional Requirements

• Candidates must hold a valid work permit or EU/Schengen nationality allowing them to work legally in Portugal.
• The role is based in Lisbon under a hybrid working model.
• A broad, generalising-specialist mindset is valued, with the ability to work across multiple database technologies.

We Offer

• Gross annual salary: €23,000–€28,000, depending on experience and suitability for the role.
• Meal allowance.
• Flexible benefits package.
• Extra day off on your birthday.
• One additional day off on either 24 December or 31 December.

About the Company

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