XTB

XTB

XTB is a leading European brokerage house providing access to financial markets with forex, equities, and commodity CFDs. Backed by advanced technology and superior execution speeds, we offer over 700 global markets for trading, making us one of the fa...

Capital Markets
501-1000
Founded 2002

Description

  • Administer, configure, and maintain production PostgreSQL clusters, including streaming replication, connection pooling, and high-availability configurations.
  • Design, manage, and optimize MongoDB sharded clusters, replica sets, and mongos query routing.
  • Perform database performance tuning and capacity planning, including query, indexing, engine, and storage I/O optimization.
  • Design, maintain, and automate backup and recovery strategies, including Point-in-Time Recovery, for PostgreSQL and MongoDB.
  • Plan and execute business continuity, disaster recovery, failover, and data-restoration drills.
  • Administer database infrastructure on Debian/Ubuntu Linux, including kernel tuning, memory allocation, storage diagnostics, and system hardening.
  • Automate maintenance, monitoring, deployments, and routine DBA work using Ansible, Python, and Bash.
  • Collaborate with development, platform, and security teams on data modeling, schema changes, and compliance.
  • Conduct occasional on-site data-center visits in Poland and Europe for rollouts, recovery testing, and diagnostics.

Requirements

  • 4+ years of hands-on DBA experience managing enterprise-scale production environments.
  • In-depth PostgreSQL expertise, including replication, Patroni-based failover, performance diagnostics, EXPLAIN plans, and pg_stat_statements.
  • Hands-on experience managing distributed MongoDB environments, including sharding, replica sets, elections, aggregation tuning, and WiredTiger optimization.
  • Expertise in enterprise backup and recovery architectures.
  • Strong Linux administration skills, including performance troubleshooting, storage/IOPS analysis, memory management, and networking.
  • Experience with observability platforms such as Prometheus, Grafana, or Zabbix.
  • Experience with DR and BCP frameworks, automated failovers, and recovery exercises.
  • Proficiency with Bash, Python, Ansible, and Git for scripting and automation.
  • Willingness to join paid on-call rotations and travel occasionally to data centers.
  • Fluent Polish and technical English proficiency at B2 level or higher.
  • MS SQL or MySQL experience, Kubernetes database operators, Terraform/Infrastructure-as-Code, database security and compliance knowledge, or relevant PostgreSQL/MongoDB certifications (preferred).

Benefits

  • Training budget for relevant courses and conferences.
  • Clear career paths, regular feedback, and knowledge sharing within an experienced team.
  • Extra day off for your birthday and an additional day off for parents.
  • Equipment tailored to your needs.
  • Private medical care and group insurance.
  • Access to English e-learning, benefits, and wellbeing platforms.
  • Remote work, with options to work from the Warsaw office or a local coworking space.
  • Regular team-building meetings.

Interested in this position?

Apply directly on the company website

Apply Now

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