Database administrator - oracle (exacc / exadata)

Description

Accenture Digital Core

At Accenture Digital Core, we help clients continuously innovate at speed and at scale, combining deep industry expertise with cutting-edge technology to deliver meaningful transformation. You will bring innovation, intelligence and experience together to shape robust, secure and scalable digital solutions.

Requirements

A senior Oracle DBA role focused on performance optimisation, resource efficiency and project delivery across Oracle ExaCC (Exadata Cloud@Customer), ZFS and ZDLRA environments.

What You'll Do

• 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.

What you will need

Qualifications

• 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.
• Hands-on experience with ExaCC, ZFS and ZDLRA is a strong plus.
• OS knowledge: Linux and/or Unix (primary), Windows (secondary).

Technical Skills

• Oracle RAC, Data Guard, RMAN, Oracle Enterprise Manager (OEM); SQL and PL/SQL scripting (must).
• ExaCC CPU optimisation, compression techniques, query tuning, Exadata awareness.
• Kerberos authentication and Oracle Client upgrades.
• Transparent Data Encryption (TDE), auditing & compliance controls.
• Azure SQL or PostgreSQL, Azure Synapse or DB2 — knowledge is a plus.
• Tools: Oracle SQL Developer, Toad for Oracle.
• Following Tools are a plus: Jenkins, UrbanCode Deploy, Qlik Replicate, Git/Bitbucket, ServiceNow, Jira, DBeaver.
• Oracle Certified Professional (OCP) or equivalent certification is a plus.

Profile & Other Requirements

• Professional English C1 (spoken and written) — mandatory; French and/or Dutch is a plus.
• 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.
• Experience in regulated environments (e.g., financial services) is a strong plus.
• Must own a valid work permit or EU/Schengen Space nationality to legally work in Portugal.
• Lisbon/Portugal-based — hybrid working model.

What we offer

• 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 Platforms.
• Flex-ability program (financial and flexible support for people with disabilities).
• Special banking conditions.
• Hybrid working model.