Key strengths: Strong interest in new projects and a willingness to learn new technologies. Quick decision-making when resolving critical incidents and system failures. Highly detail-oriented and persistent in troubleshooting — I do not like leaving problems unresolved. I work well in a team environment and have experience leading projects from start to finish. I am strongly committed to the overall success of the project and the organization. Extensive experience administering large-scale billing databases (ASR BIS, BFN, Start, etc.), SAP CRM and PI systems, and databases exceeding 10 TB in size. Experienced in designing and maintaining high-availability architectures using Oracle RAC, ASM, Oracle Active Data Guard, Percona, and PostgreSQL Pro multi-master replication. Strong experience in SQL query optimization and close collaboration with development teams to resolve performance and database design issues. Experienced in the full lifecycle of database administration, including: backup and restore performance tuning monitoring setup upgrades to newer versions platform migrations (for example HP-UX → x86) Hands-on experience with multiple database systems: PostgreSQL, PostgreSQL Pro, MySQL, Percona, MS SQL Server, ClickHouse, Tarantool. Programming experience in PL/SQL, Java, and Shell scripting. Strong knowledge of Linux and HP-UX operating systems. Experience installing and configuring Oracle Enterprise Manager and Zabbix. Managed a team of 7 database and application server administrators. Experience configuring replication between Oracle and Kafka using Oracle GoldenGate. Experience implementing monitoring solutions for different database systems using Prometheus, Grafana, and Oracle Enterprise Manager. After returning from maternity leave, I led the MSSQL, MySQL, SAP, and Cache database direction, and also took on responsibilities as an infrastructure project manager. Recent successful projects include: A project to merge two Oracle databases into a single system, including resolving conflicts between overlapping objects and schemas. Migration of an Oracle database (>50 TB) from AIX to x86, including a version upgrade and deployment at a remote disaster recovery site in Vladivostok, while managing a geographically distributed team. Designing and implementing a geo-distributed high-availability monitoring system using Oracle Enterprise Manager for a large database infrastructure. Databases were located across Russia, and response time testing was conducted to determine optimal monitoring node placement. Resolving Percona cluster lock-up issues during backup operations caused by increased I/O load. Designing a high-availability infrastructure for a broadband billing system, including Oracle RAC, standby databases, and redundant application infrastructure. Currently working as an Oracle Database Administrator at Lancktelecom (Georgian branch) and also providing freelance database administration services. Contact methods: WhatsApp, Telegram, Viber, mobile phone, or email: Irina.yu.artemova@gmail.com