linux system administrator in fintech

Quadcode is a fintech company focused on financial brokerage activities and advanced financial products. Its flagship internal trading platform is provided to other brokers as a SaaS solution.

• Administer Linux servers across development and production environments;
• Administer PostgreSQL databases and Greenplum clusters, including performance and reliability troubleshooting;
• Administer and support KeyDB, ClickHouse and Kafka;
• Configure and maintain infrastructure services such as Nginx, Jenkins, GitLab CI, DataHub, Allure and Airflow;
• Automate infrastructure and operational tasks using Ansible and scripts;
• Work with Docker and Kubernetes environments, including application deployments using Helm;
• Monitor production systems, troubleshoot incidents and improve system performance and reliability;
• Build and maintain CI/CD pipelines using GitLab CI and Jenkins;
• Work with OpenStack and AWS infrastructure;
• Support development teams with infrastructure-related issues and working environments;
• Troubleshoot issues and coordinate infrastructure changes with the Infrastructure team, including new hardware provisioning;
• Contribute to security practices and PCI DSS requirements.

• 3+ Years of hands-on experience administering Linux servers in production environments;
• Strong practical knowledge of Linux internals, networking, system services and troubleshooting;
• Experience administering PostgreSQL and/or Greenplum;
• Experience with Docker and Kubernetes;
• Hands-on experience with Ansible for infrastructure automation;
• Good scripting skills with Python and/or Bash;
• Hands-on experience with CI/CD, particularly GitLab CI and/or Jenkins;
• Experience with monitoring, logging and system profiling, particularly Prometheus and Grafana;
• Fluent Russian (C2 or higher) for communication with the team;
• English B1+ for technical documentation and written communication;
• Nice to have: DBA experience, Patroni, high-load or distributed production systems, AWS, OpenStack, PCI DSS, PHP/Go, Chef.

• Health insurance and mental health services;
• 13Th salary and 21 vacation days per year;
• Sick leave without medical certificate: 3 days per quarter;
• Catered breakfast and lunch at the office;
• Tuition reimbursement for kindergartens and schools;
• Onsite gym;
• Corporate events and workshops;
• Bonuses for special events, including a child's birth;
• Birthday and anniversary gifts;
• Company-provided laptop;
• Corporate AI subscriptions, including Claude, Gemini and GPT;
• Access to a rewards marketplace with products and language courses.