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We're committed to bringing passion and customer focus to the business.
We are seeking an experienced Database Administrator (DBA) to manage, maintain, and optimize MariaDB, PostgreSQL, and Cassandra database platforms. The ideal candidate will ensure high availability, performance, security, and scalability of databases supporting mission-critical applications.
Key Responsibilities
Database Administration:
Install, configure, upgrade, and maintain MariaDB, PostgreSQL, and Apache Cassandra databases
Perform database capacity planning, performance tuning, and optimization
Monitor database health, replication, clustering, and availability
Backup, Recovery & High Availability:
Design and manage backup and recovery strategies (logical & physical backups)
Implement and manage replication, clustering, and failover solutions
Perform disaster recovery planning and regular DR drills
Security & Compliance:
Manage database security: users, roles, privileges, encryption, and auditing
Apply security patches and upgrades in compliance with company policies
Ensure compliance with data protection and regulatory standards
Performance & Troubleshooting:
Diagnose and resolve database performance issues and outages
Analyze slow queries, locks, and resource bottlenecks
Provide root cause analysis (RCA) for incidents
Automation:
Automate routine DBA tasks using scripts (Shell, Python, etc.)
Support containerized and cloud-based database deployments (if applicable)
Documentation & Support:
Maintain database documentation, SOPs, and operational runbooks
Provide on-call support for production database environments
Assist developers with schema design, indexing, and query optimization
Required Skills & Qualifications:
Technical Skills:
Strong hands-on experience with MariaDB / MySQL, PostgreSQL, and Apache Cassandra
Expertise in:
Replication & clustering (Galera, PostgreSQL streaming replication, Cassandra clusters)
Backup & recovery tools (mysqldump, pg_dump, pg_basebackup, nodetool, etc.)
Performance tuning and query optimization
Experience with Linux systems and shell scripting
Knowledge of monitoring tools (Prometheus, Grafana, Zabbix, Nagios, etc.)
Database Concepts:
ACID vs BASE principles
OLTP and distributed database architectures
Data modeling for relational and NoSQL databases
Skills Required
- Hands-on experience with MariaDB / MySQL
- Hands-on experience with PostgreSQL
- Hands-on experience with Apache Cassandra
- Experience with replication and clustering (Galera, PostgreSQL streaming replication, Cassandra clusters)
- Experience with backup and recovery tools (mysqldump, pg_dump, pg_basebackup, nodetool)
- Performance tuning and query optimization
- Experience with Linux systems and shell scripting
- Ability to automate DBA tasks using scripts (Shell, Python)
- Knowledge of monitoring tools (Prometheus, Grafana, Zabbix, Nagios)
- Design and manage backup, replication, clustering, and failover solutions
- Disaster recovery planning and conducting DR drills
- Manage database security: users, roles, privileges, encryption, and auditing
- Provide on-call production database support and perform incident RCA
- Assist developers with schema design, indexing, and query optimization
- Maintain database documentation, SOPs, and operational runbooks
What We Do
Qvantel is leading the evolution of Digital BSS. Qvantel Flex BSS is a no/low code, cloud-native Digital BSS that is enabling communication service providers (CSPs) to quickly transform to digital-first companies. By pioneering the use of no/low code technology in telecoms Qvantel Flex BSS enables CSPs to react quickly to new opportunities and develop new offers, processes and business models. In the digital telecoms and 5G markets CSPs will need a new level of agility in BSS that is unimaginable in legacy systems. New offers and processes need to be developed, tested and in production in hours – not months. Using no/low code technology Qvantel Flex BSS delivers this level of agility to CSPs. Headquartered in Finland, with over 20 offices world-wide, Qvantel is a global, product-based company. Our focus on turning innovation into business value for our customers is built on our roots of Nordic telecoms research and development. Our customers include leading CSPs, telecoms groups, MVNEs / MVNOs and digital-first sub-brands. Qvantel software delivers the best customer experience possible for over 230 million telecoms customers covering mobile, fixed and TV services.
