Oracle DBA

Role description and responsibilities

• Optimise Oracle database performance through compression techniques, query tuning and indexing strategy — with a focus on ExaCC CPU efficiency, storage cost reduction and I/O efficiency

• Fine-tune Oracle CPU allocation algorithms on ExaCC to maximise the used/allocated ratio and minimise waste

• Optimise backup and recovery processes for Oracle ZFS and ZDLRA appliances, ensuring reliability and cost-effectiveness

• Lead and support key projects, including migration to Kerberos authentication and Oracle Client upgrades

• Guide development teams on best practices for database design, SQL coding, performance and scalability

• Perform root cause analysis on performance incidents and complex database issues escalated from infrastructure partners

• Enforce access management, TDE encryption, auditing controls and audit-quality documentation

• Contribute to multi-platform environments (Azure SQL, PostgreSQL, Synapse) where relevant

• Collaborate with infrastructure partners, development teams and project stakeholders across initiatives

Requirements

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

• 5–10 years of hands-on experience with Oracle databases in production environments

• Proven expertise in performance tuning, compression and resource optimisation

• OS knowledge: Linux and/or Unix (primary), Windows (secondary)

• Oracle RAC, Data Guard, RMAN, Oracle Enterprise Manager (OEM)

• SQL and PL/SQL scripting (mandatory)

• ExaCC CPU optimisation, compression techniques, query tuning, Exadata awareness

• Kerberos authentication and Oracle Client upgrades

• Transparent Data Encryption (TDE), auditing & compliance controls

• Professional English C1 (spoken and written) — mandatory

• Strong collaboration skills — comfortable working with infrastructure partners, development teams and non-technical stakeholders

• Structured problem-solving mindset; ability to communicate technical findings clearly

• Generalizing-specialist profile — open to working across multiple database technologies

• Must own a valid work permit or EU/Schengen Space nationality to legally work in Portugal

• Lisbon/Portugal-based — hybrid working model

Nice to have

• Hands-on experience with ExaCC, ZFS and ZDLRA

• Azure SQL or PostgreSQL, Azure Synapse or DB2 knowledge

• Tools: Jenkins, UrbanCode Deploy, Qlik Replicate, Git/Bitbucket, ServiceNow, Jira, DBeaver

• Oracle Certified Professional (OCP) or equivalent certification

• French and/or Dutch language skills

• Experience in regulated environments (e.g., financial services)

Perks

• Company Car (level 9 and above);

• 3000€ expenses (level 7 - Manager)

• Annual bonus (level 9 - 5% / level 8 - 6% / level 7 - 23%)

• +12 vacation days (compensation days)

• Health insurance;

• Life Insurance and Pension Plan Programs;

• Free medical services at the office (Physician, Nutritionist, Psychologist);

• Wellness programs;

• Flexben Program (Support for Education, Kindergarden, Training, Technology, Health);

• Employee Share Purchase Plan;

• Personalized training paths and access to Udemy and Plurisight Plataforms;

• Flex-ability program (financial and flexible support for people with disabilities);

• Special banking conditions;

• Hybrid working model.

Source: Landing.jobs (https://landing.jobs/at/accenture-pt/oracle-dba-in-lisbon)