Senior Database Administrator (Oracle)
Senior Oracle DBA on Sapiens' Global Cloud DBA team in Lisbon, owning day-to-day operation, availability and performance of Oracle estates on AWS (RDS/EC2) and OCI, with 24x7 incident support, backups/DR, tuning, patching and on-call rotation, plus cross-skilling into MSSQL, PostgreSQL and MySQL.
- Compensation
- Not disclosed
- Location
- Portugal, Portugal
- Work setup
- Hybrid
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 6+ years
- Category
- Devops
- Posted
Skills
Must have
- 6–10 years of hands-on database administration experience, majority on Oracle Database in production environments
- Experience supporting enterprise or managed-services customers under formal SLAs
- Bachelor's degree in Computer Science, Information Technology or equivalent practical experience
- Eligibility to work in Portugal
- Strong written and spoken English, able to communicate directly with customer stakeholders
- Structured troubleshooting under production pressure with clear escalation and hand-over discipline across shifts
- Ownership mindset — validating changes before production and owning the rollback path
- Willingness to cross-skill into secondary database platforms (MSSQL, PostgreSQL, MySQL)
- Documentation habit — runbooks, knowledge-base articles and post-incident notes
Nice to have
- Certifications such as Oracle Certified Professional (OCP) 19c, Oracle Cloud Infrastructure Architect Associate or AWS Certified Database — Specialty
Full description
We are looking for a senior Oracle DBA to join our Global Cloud DBA team in Portugal. You will own the day-to-day operation, availability and performance of Oracle estates hosted on AWS (RDS and EC2) and Oracle Cloud Infrastructure (OCI) for GDPR, EMEA and US customers, working a fixed shift aligned to EMEA business hours with rotational on-call responsibility for critical incidents outside those hours. You will also build working capability on MSSQL, PostgreSQL and MySQL as secondary platforms to widen cross-platform coverage.
Location: Portugal, Lisbon
Responsibilities
- 24×7 production support for Oracle estates across EMEA, GDPR and US customers — incident response, root-cause analysis and SLA-bound resolution of P1/P2 issues.
- Execution and validation of customer scripts and datafixes against production and pre-production databases, including impact assessment, backup/snapshot before execution and ownership of the rollback path.
- Backup, restore and recovery operations; periodic recovery testing and RTO/RPO validation.
- Database refresh, clone and copy activities across environments, including masked refreshes for non-production.
- High availability and disaster recovery: configuration, monitoring, failover testing and recovery.
- Performance monitoring and tuning — query and index optimisation, blocking and contention analysis, capacity and growth management.
- Planned change delivery: pre-implementation backups, implementation, post-implementation and post-patching validation within agreed maintenance windows.
- Access and permission management, user provisioning and privilege reviews.
- Patching, upgrades and migrations, including cloud migrations and version upgrades.
- Automation of routine operational tasks and contribution to self-healing and monitoring improvements.
- Proactive analysis of recurring incidents to identify and eliminate root causes rather than repeatedly remediating them.
Requirements
- 6–10 years of hands-on database administration experience, with a majority on Oracle Database in production environments.
- Demonstrable experience supporting enterprise or managed-services customers under formal SLAs.
- Bachelor's degree in Computer Science, Information Technology or equivalent practical experience.
- Certifications such as Oracle Certified Professional (OCP) 19c, Oracle Cloud Infrastructure Architect Associate or AWS Certified Database — Specialty are an advantage.
- Eligibility to work in Portugal.
- Proven track record working for a Born-in-the-Cloud or Cloud-Native technology company — must have.
Professional skills
- Strong written and spoken English; able to communicate directly with customer stakeholders.