Database Administrator

At IRIUM we want you to always chase your dreams. Here, prepare yourself to conquer your goals, while enjoying the journey. We are currently looking for: Database Administrator – Oracle, Microsoft SQL Server & PostgreSQL Requirements: We are currently looking for an experienced Database Administrator with a strong background in Oracle, Microsoft SQL Server and PostgreSQL , to manage critical and high-availability database environments, ensuring performance, security, reliability and business continuity. Required Competencies: Minimum 5 years of experience in database administration in critical and high-availability environments Strong experience with Oracle, Microsoft SQL Server and PostgreSQL Knowledge of MySQL Experience with Linux, Unix and Windows Server Experience with database version upgrades and migrations Strong experience in query and performance optimisation Experience troubleshooting and resolving complex database incidents Experience implementing backup, restore, contingency and Disaster Recovery (DR) strategies Experience participating in restoration and recovery tests Experience implementing database security policies and managing users, roles, permissions and access Experience with task automation using Bash, Cron, PowerShell and/or Python Oracle: Installation, configuration, maintenance, monitoring and expansion of Oracle databases Advanced administration of Oracle RAC, ASM, Data Guard, GoldenGate and Enterprise Manager (OEM) Disk management using ASM Backup and recovery management using RMAN Performance tuning, including query optimisation, deadlock analysis and parameter tuning Experience with SQL Tuning Advisor, AWR and Execution Plans Experience with Grid Infrastructure, Exadata Cloud and Cloud Control Administration of advanced resources including MGW, ACLs, AQ/MQ and certificates Technical support for related servers and platforms Microsoft SQL Server: Installation and configuration of Microsoft SQL Server instances and related tools, including SQL Server Management Studio (SSMS) Management of users and roles at server and database levels Backup and restore administration and recovery model configuration Security and access policy management Performance monitoring, incident resolution and query optimisation Version upgrades and migrations Implementation of contingency and Disaster Recovery plans Management of fixed and custom roles and permissions PostgreSQL: Installation, configuration and maintenance of PostgreSQL Server User and role management based on the principle of least privilege Creation and assignment of specific roles according to access requirements Backup and restore administration using pg_dump and pg_restore Scheduling of maintenance tasks, including vacuum and log analysis Resource and performance monitoring, parameter tuning and incident resolution Secure authentication configuration using SCRAM-SHA-256 and SSL Password and expiration policy management Experience with pgAdmin for database administration and task automation Preferred Competencies: Intermediate or advanced Spanish Experience in multinational and dynamic technical environments Strong knowledge of database automation and continuous improvement practices Soft Skills: Strong analytical and complex problem-solving skills Ability to manage complex incidents and projects Clear communication with technical and business teams Proactive and results-oriented mindset Ability to work under pressure and manage priorities effectively Adaptability to dynamic environments and emerging technologies Ability to work independently in a multinational environment Strong commitment to continuous improvement Languages: Portuguese – Native English – Advanced Technical Level (spoken and written) Spanish – Intermediate/Advanced (nice to have) Location: Lisbon – Hybrid Salary Range: €1.900–€2.100 gross/month Note: Includes all components: Fixed, Variable, Meal Allowance, Remote Work, and Benefits. What do we offer? ➡ An innovative and growing company, with a lot of opportunities for professional development. ➡ Retribution according to your experience and performance. Access to flexible pay and medical insurance as a social benefit. ➡ Unlimited access to technological training in free mode. IRIUM is a company with dynamic and proactive professionals. Our values are responsibility and commitment to work quality. This is the spirit we are looking for at IRIUM, whatever your age is. If you recognize yourself in this, this is your company! We can build the future together. Let’s talk! Send your CV to: [email protected] At IRIUM we defend a world without stereotypes or limitations and we believe in equality for all, principles that we subscribe to in our Equality Plan and Code of Ethics, guaranteeing equal treatment and opportunities regardless of any personal, physical or social condition.