Database Administrator (DBA)

The Role

As a Database Administrator (DBA) at Air Apps, you will be responsible for managing, optimizing, and securing large-scale, complex databases. You will work with engineering teams to design, implement, and maintain high-performance, scalable, and resilient database systems that power our AI-driven platform.

Your role will involve database tuning, backup and recovery strategies, monitoring, and ensuring data integrity while working with structured and unstructured data sources. This is a fully onsite position based at our office in Lisbon, and relocation support is available.

Responsibilities

• Design, implement, and maintain high-performance database systems to support large-scale applications.
• Optimize database queries, indexing strategies, and partitioning to enhance performance.
• Monitor database health, ensuring high availability, scalability, and disaster recovery.
• Manage and fine-tune SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB, Redis, DynamoDB).
• Implement database security policies, encryption, and access control to protect sensitive data.
• Automate database backups, replication, and failover mechanisms.
• Work closely with developers to optimize queries, schema design, and data modeling.
• Perform capacity planning and monitor database growth trends.
• Ensure compliance with data governance, GDPR, and other regulatory requirements.
• Stay updated with the latest database technologies, trends, and best practices.

Requirements

• Around 4+ years of experience as a Database Administrator (DBA) or similar role.
• Expertise in relational databases (PostgreSQL, MySQL, SQL Server) and/or NoSQL databases (MongoDB, Redis, Cassandra, DynamoDB).
• Strong knowledge of database optimization, indexing, partitioning, and replication.
• Experience in performance tuning, query optimization, and troubleshooting slow queries.
• Familiarity with database backup, recovery, failover, and disaster recovery strategies.on
• Experience with cloud database services (AWS RDS, Aurora, Google Cloud Spanner, Azure SQL).
• Knowledge of scripting for automation (Python, Bash, SQL scripts).
• Understanding of data security best practices, encryption, and compliance requirements.
• Experience working with large, complex datasets and high-traffic applications.
• Ability to work with DevOps teams to integrate databases into CI/CD workflows.

Benefits

• Apple hardware ecosystem for work.
• Annual Bonus.
• Top-tier Health and Life Insurance.
• Transportation Budget.
• Coverflex benefits package for meal allowances, well-being, and more.
• Childcare support.
• Air Conference - an opportunity to meet the team, collaborate, and grow together.
• Pension Fund.
• Urban Sports Club membership.
• Meals 100% free at the hub.
• Relocation support.