CDIPorto, Portugal
AWS/Redshift Database Administrator
Hybride
❗Hybrid: 3 days/week on-site
A confidential client operating mission-critical financial market infrastructure across Europe is looking for a Senior AWS Database Administrator to join its DBA team in Porto. The team manages a broad stack of relational and non-relational database technologies, both on-premises and on AWS, supporting financial markets that operate Monday through Friday with zero tolerance for unplanned downtime.
This is a pure infrastructure DBA role. Responsibilities do not include application development, business logic, or data engineering. Ownership covers performance, availability, disaster recovery, security, and operational continuity at the database layer.
The primary driver for this hire is deep, production-grade expertise in Amazon Redshift, but the role requires credible DBA coverage across additional platforms due to the shared on-call rotation.
Monitor Redshift cluster health, performance, and resource utilization on a daily basis
Manage and tune WLM queues to isolate and prioritize workloads effectively
Execute VACUUM and ANALYZE strategies for large-scale tables, including environments operating in the tens of terabytes, within constrained production windows
Diagnose and resolve performance issues using SVL/STV system views, CloudWatch metrics, and the Redshift console
Triage and respond to incidents raised via internal ticketing, including participation in war room calls with up to 40 to 50 stakeholders and senior management
Monitor all supported database platforms proactively, identify anomalies, and share findings with development teams in recurring alignment meetings
Plan and execute production and disaster recovery activities during Saturday maintenance windows
Cover on-call rotation across the full database stack, not only Redshift, requiring independent triage capability across multiple RDBMS technologies
Perform installation, configuration, patching, and upgrades across both on-premises and AWS database environments
Manage user access, space allocation, backup policies, and disaster recovery configurations
Provide architectural consultation and query performance guidance to application and DevOps teams on an advisory basis
Experience Required
5+ years of experience as a Database Administrator with a strong focus on AWS database services in production environments
Expert-level, hands-on Amazon Redshift administration: cluster management, distribution and sort key strategy, WLM queue configuration, VACUUM and ANALYZE on large-scale tables, and performance diagnostics using SVL/STV system views
Solid operational DBA experience in at least one additional RDBMS for on-call coverage: Oracle, PostgreSQL, MySQL, or SQL Server, either on-premises or via AWS RDS and Aurora
All DBA experience must be evidenced as infrastructure-level hands-on work, not data engineering, analytics, or infrastructure provisioning
Availability for Saturday production windows and monthly on-call rotation after an onboarding period of approximately two to three months
Composure and clear communication under pressure during live critical incidents with executive stakeholders
❗Hybrid: 3 days/week on-site
-------------------------
Contact: Costa Neto
costa.neto@littlebigconnection.com
+351 21 020 9908 (Whatsapp)
Informations de la mission :
A confidential client operating mission-critical financial market infrastructure across Europe is looking for a Senior AWS Database Administrator to join its DBA team in Porto. The team manages a broad stack of relational and non-relational database technologies, both on-premises and on AWS, supporting financial markets that operate Monday through Friday with zero tolerance for unplanned downtime.
This is a pure infrastructure DBA role. Responsibilities do not include application development, business logic, or data engineering. Ownership covers performance, availability, disaster recovery, security, and operational continuity at the database layer.
The primary driver for this hire is deep, production-grade expertise in Amazon Redshift, but the role requires credible DBA coverage across additional platforms due to the shared on-call rotation.
Monitor Redshift cluster health, performance, and resource utilization on a daily basis
Manage and tune WLM queues to isolate and prioritize workloads effectively
Execute VACUUM and ANALYZE strategies for large-scale tables, including environments operating in the tens of terabytes, within constrained production windows
Diagnose and resolve performance issues using SVL/STV system views, CloudWatch metrics, and the Redshift console
Triage and respond to incidents raised via internal ticketing, including participation in war room calls with up to 40 to 50 stakeholders and senior management
Monitor all supported database platforms proactively, identify anomalies, and share findings with development teams in recurring alignment meetings
Plan and execute production and disaster recovery activities during Saturday maintenance windows
Cover on-call rotation across the full database stack, not only Redshift, requiring independent triage capability across multiple RDBMS technologies
Perform installation, configuration, patching, and upgrades across both on-premises and AWS database environments
Manage user access, space allocation, backup policies, and disaster recovery configurations
Provide architectural consultation and query performance guidance to application and DevOps teams on an advisory basis
Experience Required
5+ years of experience as a Database Administrator with a strong focus on AWS database services in production environments
Expert-level, hands-on Amazon Redshift administration: cluster management, distribution and sort key strategy, WLM queue configuration, VACUUM and ANALYZE on large-scale tables, and performance diagnostics using SVL/STV system views
Solid operational DBA experience in at least one additional RDBMS for on-call coverage: Oracle, PostgreSQL, MySQL, or SQL Server, either on-premises or via AWS RDS and Aurora
All DBA experience must be evidenced as infrastructure-level hands-on work, not data engineering, analytics, or infrastructure provisioning
Availability for Saturday production windows and monthly on-call rotation after an onboarding period of approximately two to three months
Composure and clear communication under pressure during live critical incidents with executive stakeholders
❗Hybrid: 3 days/week on-site
-------------------------
Contact: Costa Neto
costa.neto@littlebigconnection.com
+351 21 020 9908 (Whatsapp)
Informations de la mission :
- Début de mission : 09/02/2026
- Durée : 6 mois
- Date de publication : 09/02/2026
- Date limite de candidature : 28/08/2026
Compétences recherchées
Amazon Redshift (Indispensable)AWS (Indispensable)AWS RDS (Indispensable)Aurora (Indispensable)Oracle (Indispensable)PostgreSQL (Indispensable)MySQL (Indispensable)SQL Server (Indispensable)AWS DMS (Indispensable)WLM (Indispensable)VACUUM (Indispensable)ANALYZE (Indispensable)SVL/STV (Indispensable)CloudWatch (Indispensable)S3 (Indispensable)IAM (Indispensable)Lambda (Indispensable)Ansible (Indispensable)Python (Indispensable)Bash (Indispensable)OpenShift (Indispensable)MongoDB (Indispensable)RDS (Indispensable)AWS RDS/Aurora (Indispensable)Incident response under pressure (war room (Apprécié)executive stakeholders) (Indispensable)DBA experience in additional RDBMS (Oracle/PostgreSQL/MySQL/SQL Server) (Indispensable)Amazon Redshift (production-grade) (Indispensable)WLM and workload scheduling (Indispensable)High availability and disaster recovery management (Indispensable)MongoDB awareness (Apprécié)Database performance tuning and query optimisation (Indispensable)Operational scripting and automation (Ansible (Apprécié)Bash) (Apprécié)OpenShift with PostgreSQL awareness (Apprécié)On-premises RDBMS administration alongside cloud environments (Apprécié)AWS supporting services (CloudWatch (Apprécié)Lambda) (Apprécié)
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