Database Reliability Engineer

📍 Location: Relocation to Bulgaria, Sofia 🇧🇬 (full support provided)
💬 Language: English B2+ (International team communication).

The team works on large-scale, high-load telecommunications services, building solutions for modern contact centers. Our international team is responsible for maintaining global communication services with 99.999% availability.

Responsibilities:

• Work on the reliability and performance of database clusters and their components

• Take part in the design and other architectural changes of critical databases

• Work on the observability of database load and relevant metrics, and perform capacity planning

• Be a point of expertise for the development teams - review database migrations, SQL queries, and other database changes

• Work with SRE engineers to roll out changes to the production environments and help mitigate database-related production incidents

• Work on database infrastructure automation

• Provide relevant documentation to peers as a source of knowledge and subsequent automation

Technical Stack

• Strong knowledge of SQL

• Strong knowledge of SQL DBMS internals: MySQL experience is a must, AWS Aurora, PostgreSQL, and MongoDB experience is preferred

• AWS

• Experience with Contact Center and VoIP solutions is a HUGE plus

Qualifications:

• 5+ years of experience running cloud-based SQL databases in large production environments

• Strong knowledge of SQL

• Strong knowledge of SQL DBMS internals: MySQL experience is a must, AWS Aurora, PostgreSQL, and MongoDB experience is preferred

• Experience with Liquibase

• Experience with database performance optimizations

• Data modeling and data design skills

• Experience with database migrations, patching, and deployment architecture changes

• Acquaintance with Linux and Unix shells

• Experience with infrastructure automation and configuration management

• Passion for having the best documentation possible

• Good written and verbal communication skills

• Comfortable and proficient in collaborating and communicating asynchronously

• Experience with Contact Center and VoIP solutions is a HUGE plus