Senior Database Administrator

Devexperts works with respected financial institutions, delivering products and tailor-made solutions for retail and brokerage houses, exchanges, and buy-side firms. The company focuses on trading platforms and brokerage automation, complex software development projects, market data products, and IT consulting services.  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 hoursHealth 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 - Community benefits:  - Teambuilding activities - Corporate parties - Football club - Music club - Speakers' club - Free admission to corporate external events - Possibility of joining conferences and professional fairs - Personal branding development support - Professional training benefits:  - Local language courses for foreign employees - Unlimited access to self-learning platforms - Certification opportunities - Mentorship Program - Social benefits:  - Parental bonus - Pension plan - Referral bonus - Blood donation paid leave