Senior Database Administrator

We are looking for a Senior Database Administrator who will be responsible for on-premises and Cloud database infrastructure administration. We expect the Senior Database Administrator to:  • Ensure database services meet agreed service levels for availability, recoverability, performance, and scalability, • Design and manage database subsystems, including clustering, replication, etc, • Define and execute backup, disaster recovery, and business continuity procedures, • Handle database compliance with industry standards, regulations, and best practices, • Establish monitoring standards, capacity planning practices, and operational metrics to proactively identify risks and trends before they impact the business, • Investigate production incidents, coordinate resolution efforts, perform root cause analysis, and drive remediation initiatives to prevent recurrence, • Work closely with Developers, Quality Assurance, and Support departments on a regular basis, assisting with Database-related requests, • Participate in an on-call rotation and serve as an escalation point for complex production issues affecting critical systems, • Apply cost reduction practices for Cloud database Infrastructure based on the resources usage and databases load profile, • Conduct deep analysis of database performance issues, implementing solutions, • Oversee data migration projects and perform risk analysis, • Drive innovation in database technologies within the project or business unit. Must-have skills: • 5+ years of hands-on experience administering PostgreSQL in production environments within mission-critical systems, • Proven experience designing, implementing, and operating high-availability PostgreSQL architectures using Patroni, • Hands-on experience managing Amazon RDS for PostgreSQL and Amazon Aurora PostgreSQL, • Strong expertise in backup and recovery strategies , including planning and executing Point-in-Time Recovery (PITR) using tools such as pgBackRest and Barman, • Solid understanding of PostgreSQL internals ( MVCC, vacuuming, query planning, replication concepts, etc), • Extensive experience with performance monitoring, SQL workload analysis, and database tuning , with the ability to identify bottlenecks and optimize database performance, • Experience automating database deployment, configuration management, and operational processes using Ansible, • Practical experience implementing and maintaining PostgreSQL partitioning strategies , including both native partitioning and TimescaleDB for time-series workloads, • Strong working knowledge of Linux operating systems , including system performance analysis, process management, networking fundamentals, and storage concepts relevant to database operations, • Familiarity with database monitoring and observability tools such as Zabbix , including metrics collection, alerting, and log analysis, • Exposure to column-oriented database technologies such as ClickHouse , with an understanding of their core concepts, architecture, and performance characteristics, would be a plus. Care for the employees is one of Devexperts' core values. For the suggested position, we offer a benefits package that will guarantee the comfort of our new teammate.   Work Regime Flexibility benefits:  • Possibility of hybrid/remote work mode • Flexible working hours Health and recreation benefits:  • Fully paid additional wellness days (3 unwell days per year) • Medical insurance for the employees and children • Reimbursement of fitness • Meal allowance • Flexpay system • Facility benefits:  • Modern office with new equipment • PlayStation, table football, and musical instruments in the office • Parking spaces/transport reimbursement • Meals in the office • Free drinks and snacks • Com