It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing passion and customer focus to the business. Job Summary Database Administrator (MySQL/MariaDB, Cassandra) _ Work location - Ukraine Role Description : As a Database Administrator, you will be responsible for administration and support of production database systems, primarily MariaDB environments. Main responsibilities: · Administration and support of MariaDB Galera Cluster and Master–Slave replication · Ensuring database availability, stability, and performance · Backup, recovery, upgrades, and routine maintenance · Monitoring databases using Zabbix and working together with L1/NOC engineers · Incident analysis and participation in troubleshooting Additional responsibilities (non-primary): · Observing and assisting with Cassandra and Percona XtraDB Cluster · Supporting colleagues with database-related questions and tasks Requirements Must have: · 3+ years of experience as a Database Administrator · Solid understanding of MySQL/MariaDB · Basic to intermediate SQL knowledge and database internals expected at this level · Experience with Linux and shell scripting · Understanding of replication, backups, and performance basics Nice to have: · Hands-on experience with Galera Cluster in production environments · Experience with database proxies (MaxScale, ProxySQL, HAProxy) · Understanding of high availability and failover mechanisms · Experience with performance tuning (indexes, query optimization, configuration tuning) · Experience working with large databases and high-load systems · Practical knowledge of backup strategies (logical vs physical, PITR) · Experience with monitoring and alert tuning (Zabbix triggers, thresholds, false positives) · Experience interacting with L1/L2 support teams and handling escalations · Basic understanding of NoSQL concepts and Cassandra architecture · Experience with Percona XtraDB Cluster is a plus · Familiarity with Docker for running databases or related tools · Experience with configuration management / automation tools (Ansible preferred) · Understanding of change management and planned maintenance procedures · Ability to participate in incident post-mortems and root cause analysis (RCA) Tech Stack (brief) · Databases: MariaDB, MySQL, Cassandra · Clustering & HA: Galera Cluster, Master–Slave · Monitoring: Zabbix, Kibana/Elastic · OS and HW: Linux, BareMetal, VMware Working Conditions (brief) · Remote work · Standard working schedule · Planned maintenance work paid as overtime · On-call rotation Qvantel, established in 1995, is a leading provider of digital BSS and monetization software for the telecommunications and digital services industry. Qvantel Flex is an AI-driven BSS and monetization suite enabling operators to launch new offers rapidly using low/no-code configuration and automation. In 2025, Qvantel expanded its operations and portfolio with the acquisition of charging and BSS supplier Optiva. Qvantel supports 70+ operators in over 40 countries, powered by 1,200+ specialists across all global regions. www.qvantel.com Help our customers to accelerate digitalization to make a sustainable positive impact for their businesses, their customers and their societies. Telcos around the world are becoming digital service providers and further developing to become technology companies with diversifying portfolios and higher valuations - and Qvantel is at the forefront of powering that change. To be a leader in digital BSS, providing high-quality software and services with market-leading flexibility and openness to enable business innovation for CSPs. We're always looking to grow our talent pool! If interested, please click Get Started to learn more.

Database Administrator.

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