Onsite DBA - High-Performance, Secure Databases (Lisbon)

Air Apps; Dublin; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Apple hardware ecosystem for work.

Annual Bonus

Top-tier Health and Life Insurance

Transportation Budget

Coverflex benefits package for meals,

Childcare support.

Air Conference

Pension Fund

Urban Sports Club membership

Meals 100% free at the hub.

Job summary

Air Apps is seeking a Database Administrator to design, implement, and optimize our large-scale database systems powering our AI-driven platform. You will ensure data integrity, explore performance improvements, and collaborate with engineering to build scalable solutions.

You will work onsite at our Lisbon office, focusing on PostgreSQL/MySQL, cloud services, and strong data-security practices. Relocation support is available for the right candidate.

Qualifications

• 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.
• 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.

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.

Skills

Database optimization

Performance troubleshooting

Data security best practices

DevOps collaboration

Data governance awareness

Education

Bachelor’s degree in Computer Science or related field

Tools

PostgreSQL

MySQL

MongoDB

Redis

DynamoDB

SQL Server

AWS RDS

Aurora

Azure SQL

Python scripting

Bash scripting

Job description

Air Apps is seeking a Database Administrator to design, implement, and optimize our large-scale database systems powering our AI-driven platform. You will ensure data integrity, explore performance improvements, and collaborate with engineering to build scalable solutions.

You will work onsite at our Lisbon office, focusing on PostgreSQL/MySQL, cloud services, and strong data-security practices. Relocation support is available for the right candidate.