Senior Database Administrator (Oracle)

Sapiens; Lisboa; On-site; EUR 75,000 - 110,000; Full time

Job summary

Sapiens is seeking a senior Oracle DBA to join the Global Cloud DBA team in Portugal. You will own day‑to‑day operation, availability and performance of Oracle estates on AWS (RDS/EC2) and OCI for GDPR, EMEA and US customers, with fixed EMEA hours and on‑call rotation. You will also develop MSSQL, PostgreSQL and MySQL capabilities as secondary platforms.

Location: Portugal, Lisbon. The role requires 6–10 years of hands‑on database administration experience, excellent English, and a track record

Qualifications

• 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.

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.

Skills

Troubleshooting under pressure

Ownership mindset

Cross-database skills (MSSQL/Postgre

Documentation habit

English communication

Education

Bachelor's degree in Computer Science or Information Technology

Tools

Oracle Database

AWS RDS/EC2

OCI (Oracle Cloud Infrastructure)

MSSQL

PostgreSQL

MySQL

Job description

Job 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.

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

Job 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.
• Structured troubleshooting under production pressure, with clear escalation and hand‑over discipline across shifts.
• Ownership mindset — validating changes before they reach production and owning the rollback path.
• Willingness to cross‑skill into the secondary database platforms; the team actively runs MSSQL Oracle cross‑training to widen coverage across the on‑call rotation.
• Documentation habit — runbooks, knowledge‑base articles and post‑incident notes.

Job 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.