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CommIT

Senior Database Administrator (PostgreSQL and MySQL Focus)

CommIT Kyiv, Ukraine

Software Development · 501-1,000 employees

5 h ago
dba Mid (2-5 yrs) Full-time Ukraine
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About the role

The Senior Database Administrator will design, deploy, and maintain highly available PostgreSQL and MySQL database systems in production environments. They will also collaborate with cross-functional teams on schema design, performance tuning, and database migration projects.

What they look for

PostgreSQL MySQL SQL AWS Google Cloud Azure Database Migration High Availability Disaster Recovery Performance Optimization Bash Python Ansible ETL Schema Design Query Tuning

Requirements

Candidates must have at least 3 years of hands-on experience with both PostgreSQL and MySQL in production environments. Proficiency in cloud-native database services, SQL optimization, and automation scripting is required.

Full description

We are seeking a Senior Database Administrator with strong expertise in PostgreSQL and MySQL to join our team. The ideal candidate is a hands-on professional capable of designing, deploying, maintaining, and optimizing highly available and scalable database systems. Experience with additional database technologies such as SQL Server and MongoDB is a strong advantage.

This role also involves working with cloud-native database services across providers such as AWS, Google Cloud, or Azure. Candidates with database migration experience will be given preference.

Key Responsibilities:

  • Design, configure, and maintain PostgreSQL and MySQL databases in production environments
  • Ensure high availability, disaster recovery, and performance optimization of database systems
  • Perform database migrations (on-premises to cloud and cross-cloud environments)
  • Troubleshoot and resolve database issues across development, testing, and production environments
  • Implement database monitoring, backup strategies, and security best practices
  • Collaborate with development, DevOps, and data teams on schema design, query tuning, and ETL pipelines
  • Participate in capacity planning, cost optimization, and automation initiatives
  • Document database systems, configurations, procedures, and runbooks

Requirements

Required Qualifications:

  • 3+ years of hands-on experience with PostgreSQL in production environments
  • 3+ years of experience with MySQL
  • Experience with at least one public cloud platform (AWS, GCP, or Azure), including managed database services (e.g., RDS, Cloud SQL)
  • Strong SQL skills with a solid understanding of indexing, query optimization, and partitioning
  • Proven knowledge of backup & recovery strategies, replication, and high-availability configurations
  • Proficiency in scripting and automation (e.g., Bash, Python, Ansible)
  • Experience supporting database migration projects (e.g., PostgreSQL to cloud, MongoDB to Atlas, SQL Server upgrades)

Advantageous Qualifications:

  • Familiarity with MongoDB, SQL Server, Neo4j, or other NoSQL databases
  • Experience with ETL tools, BigQuery, or data warehousing concepts
  • Relevant certifications (PostgreSQL, MySQL, AWS, GCP, or Azure)
  • Exposure to DevOps practices and infrastructure-as-code tools

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