DBA L3 – Oracle, Postgres, MariaDB & MongoDB

Lisbon, Lisbon, pt on site Until 8/21/2026 First posted February 24, 2026 Last posted February 24, 2026
Job description

Inetum is a European leader in digital services. Inetum’s team of 28,000 consultants and specialists strive every day to make a digital impact for businesses, public sector entities and society. Inetum’s solutions aim at contributing to its clients’ performance and innovation as well as the common good.

Present in 19 countries with a dense network of sites, Inetum partners with major software publishers to meet the challenges of digital transformation with proximity and flexibility.

Driven by its ambition for growth and scale, Inetum generated sales of 2.5 billion euros in 2023.

Inetum Tech Portugal is looking for an L3 DBA with solid experience in Oracle, PostgreSQL, MariaDB and MongoDB databases. The selected candidate will join a team of excellence that operates in critical and high-availability environments, with a focus on performance, security and reliability.

Responsibilities

  • Advanced administration of Oracle, PostgreSQL, MariaDB and MongoDB databases;
  • Performance monitoring and tuning to ensure maximum system efficiency;
  • Backup management, recovery, upgrades, migrations and data replication;
  • Provide 3rd level support in complex and critical incidents;
  • Automate tasks and development of maintenance scripts;
  • Collaborate with development, infrastructure and security teams;
  • Ensure compliance with security policies and best practices.

 

  • Minimum 5 years' experience as a DBA in corporate environments;
  • Solid experience with Oracle, PostgreSQL, MariaDB and MongoDB;
  • Advanced knowledge of tuning, HA, replication and security;
  • Professional English level (communication with international teams);
  • Autonomy, good analytical skills and critical thinking.

Nice to have:

  • Certifications (OCP, MongoDB Certified DBA, etc);
  • Experience with Cloud environments (AWS, Azure, GCP);
  • Familiarity with CI/CD pipelines, DevOps and infrastructure as code (IaC).
About this role

Summary

Manage high-availability databases, optimize performance, ensure security, support complex incidents

Job title

DBA L3

Experience level

5+ years

Industry

software

Location requirements

Lisbon, remote flexibility not specified

Salary

Not specified

Management role

No

Skills & keywords

Required skills

oraclepostgresqlmariadbmongodbperformance tuningbackup recoveryhigh availabilitysecurity

Preferred skills

certificationscloud environmentsCI/CDDevOpsinfrastructure as code

Specializations

oraclepostgresqlmariadbmongodb
Locations

Structured locations inferred from the posting.

Lisbon, Portugal

On-site City
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