We are looking for an experienced Senior IT Systems Administrator (Oracle / PostgreSQL) who will be responsible for the administration, maintenance and continuous improvement of database environments and related IT services. The role combines hands-on database administration, troubleshooting, infrastructure monitoring, automation and close collaboration with other IT teams.
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Several years of professional experience in database administration or IT systems administration, preferably in complex enterprise environments.
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Strong hands-on knowledge of Oracle Database and PostgreSQL.
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Experience with database installation, configuration, upgrades, patching, backup and recovery.
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Good understanding of database performance monitoring, troubleshooting and optimization.
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Experience with backup and recovery technologies and concepts, such as Oracle RMAN and PostgreSQL tools like pgBackRest, Barman, pg_dump/pg_basebackup and WAL archiving.
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Knowledge of Oracle technologies such as Oracle Data Guard, Oracle Enterprise Manager and PL/SQL would be an advantage.
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Knowledge of PostgreSQL ecosystem technologies such as streaming/logical replication, Patroni or repmgr, PgBouncer, psql/pgAdmin and PL/pgSQL would be an advantage.
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Experience with Linux environments.
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Experience with monitoring tools such as Grafana, Prometheus (e.g. postgres_exporter), Zabbix or similar solutions would be an advantage.
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Understanding of IT service management processes, including incident, problem and change management.
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Experience with ticketing and documentation platforms such as Jira and Confluence would be an advantage.
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Practical ability to use AI-powered tools, for example Microsoft Copilot or GitHub Copilot, to support technical analysis, scripting, troubleshooting and documentation.
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Strong analytical and problem-solving skills and the ability to independently handle complex technical issues.
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Ability to cooperate effectively across different IT teams and communicate technical topics clearly.
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Willingness to share knowledge and support less experienced team members.
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Very good command of English, both written and spoken (minimum B2 level), enabling effective communication in an international IT environment.
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Install, configure, administer and maintain Oracle and PostgreSQL database environments.
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Ensure stable, secure and reliable operation of database systems supporting business-critical services.
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Provide professional technical support for business applications and IT services.
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Troubleshoot complex technical issues and handle incidents, problems and service requests.
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Monitor database and system performance, availability and capacity, and proactively address potential issues.
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Perform database upgrades, patching, backup and recovery activities (including point-in-time recovery).
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Set up and maintain replication and high-availability solutions, such as Oracle Data Guard and PostgreSQL streaming replication.
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Support and improve monitoring, maintenance and operational processes through automation.
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Create, update and maintain technical documentation, procedures and operational guidelines.
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Collaborate closely with application, infrastructure, security and other IT teams.
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Participate in root cause analysis and resolution of recurring or complex incidents.
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Share technical knowledge, provide guidance and support the development of other team members.
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Use AI-powered tools to support troubleshooting, documentation, scripting, data analysis and the optimization of daily IT operations.
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