DBRE: What Is a Database Reliability Engineer and What Do They Do?

Explore what a DBRE does, the key technologies they master, and why this role has become essential in high-performance, scalable environments.

As technology and work processes continue to evolve, the responsibilities of professionals working with databases have also expanded to include new skills and areas of expertise. The Database Reliability Engineer (DBRE) is a natural evolution of the traditional Database Administrator (DBA)—bringing new capabilities and a broader scope of responsibilities.

More than just managing databases, the DBRE must take a strategic, system-wide perspective, understanding both the technical requirements and the business outcomes the organization aims to achieve.

From automating repetitive tasks and designing reliable architecture, to deploying and integrating cloud services while ensuring high availability, security, and resilience—these are just a few of the key responsibilities of a DBRE.

Core Technologies Every DBRE Should Know

A strong DBRE typically works with a variety of tools and technologies, including:

- Databases: In-depth knowledge of multiple database systems and the ability to choose the right solution for each scenario. Commonly used databases include Oracle, SQL Server, PostgreSQL, MySQL, and MongoDB.

- Cloud Computing: Experience designing and deploying database services across major cloud platforms such as AWS, Azure, Google Cloud, and Oracle Cloud.

- Operating Systems: Ability to install, configure, and manage databases on both Unix-based and Windows servers.

- Automation: Proficiency in automating tasks using Python, Shell Script, or tools like Jenkins, Terraform, and Ansible.

- Monitoring: Implementing monitoring strategies and setting up alerts and reactive workflows using tools like Zabbix or native cloud solutions such as Amazon CloudWatch.

In addition to technical expertise, a successful DBRE demonstrates strong communication skills, planning and documentation abilities, a collaborative mindset, and a willingness to share knowledge—helping both their team and the client succeed.