Database Administrator
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Tel.: +351 214 171 161 - Lisboa
Tel.: +351 253 120 734 - Braga
Fax: +351 214 177 610
(Chamada para a rede fixa nacional) (Call to the national fixed network)
About Us
DataSmart is a Portuguese company, positioning itself as a consulting company of excellence, with over 20 years of existence. We are specialized in Technologies and Information Systems services, for the Portuguese and International markets. We pride ourselves on fostering a culture of involvement, experience, and excellence.
What You’ll Do
You will be responsible for the operational management and performance of mission-critical database systems running on AWS and on-premises environments. You will ensure high availability, performance, security, and disaster recovery of large-scale production databases supporting financial market infrastructure with zero tolerance for downtime. Your main focus will be Amazon Redshift, including cluster monitoring, workload management (WLM), performance tuning, and optimization of large-scale datasets using VACUUM and ANALYZE processes. You will diagnose and resolve performance issues using system views, monitoring tools, and AWS CloudWatch, ensuring continuous stability of production environments.
Qualifications
- Minimum 5 years of experience as a Database Administrator in production environments
- Strong, hands-on expertise in Amazon Redshift (cluster management, WLM, performance tuning, VACUUM/ANALYZE, SVL/STV diagnostics)
- Solid experience with at least one additional RDBMS (Oracle, PostgreSQL, MySQL, or SQL Server)
- Proven experience in AWS database services (RDS, Aurora, or similar)
- Strong understanding of high-availability, disaster recovery, and performance optimization in large-scale environments
- Experience working in mission-critical, 24/7 or high-availability systems
- Ability to work under pressure during critical incidents with senior stakeholders
- Availability for on-call rotation and Saturday maintenance windows
- Strong communication, problem-solving, and incident management skills
Closing
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