linux system administrator for trading platforms

Quadcode is a fintech company engaged in financial brokerage activities and providing financial products to global clients. Its internal trading platform is offered to other brokers as a Software-as-a-Service (SaaS) solution.

• Oversee infrastructure components and services, including DNS, GitLab, Artifactory, Vault, Loki, and Prometheus
• Perform day-to-day operations, including upgrades, CVE patching, backup and restore, security scans, and monitoring
• Manage and support private clouds based on OpenStack and Kubernetes
• Design, configure, maintain, and troubleshoot Linux systems across bare-metal, virtual machine, and container environments
• Resolve incidents, provide support coverage, categorize issues, conduct post-mortems, and perform root cause analysis
• Ensure environments remain stable and meet availability SLAs
• Reduce operational effort and automate repetitive tasks to minimize manual work
• Collaborate with development teams to troubleshoot production infrastructure issues
• Keep infrastructure documentation and operational procedures up to date
• Keep up with industry best practices through continuous upskilling

• At least 3 years of professional experience as a Linux System Administrator, DevOps Engineer, or Site Reliability Engineer, focused on infrastructure
• Extensive experience designing, building, configuring, and troubleshooting Linux servers across bare-metal, container, and cloud environments
• Production experience configuring, maintaining, and troubleshooting Linux servers
• Understanding of process control, logging, and Linux service management
• Experience with infrastructure services such as Vault, Artifactory, and DNS
• Proficiency with automation tools such as Chef, Ansible, or Salt
• Experience with Docker, Kubernetes, and containerized environments
• Experience with monitoring and log aggregation tools such as Grafana, ELK, or Graylog
• Experience deploying and maintaining systems on OpenStack, VMware, Proxmox, or public cloud platforms such as AWS, GCP, or Azure
• Scripting skills in Bash and Python
• Familiarity with configuring servers and databases, including Apache Tomcat, Nginx, MySQL DB, PostgreSQL, Kafka, and RabbitMQ
• Experience with DevOps tools and CI/CD workflows
• Russian at least C1 and English at least B1
• Будет плюсом: hands-on Kubernetes experience troubleshooting workloads and cluster-related issues, hands-on OpenStack experience with deployment, configuration, maintenance, or troubleshooting of private cloud environments, hands-on Chef experience, experience with GitLab CI/CD, Jenkins, or GitHub Actions, experience in fintech/trading or other high-load and mission-critical systems

• Service provider contract
• Flexible start time, anytime before 12:00 pm EET/EEST
• Compensation in EUR
• Flexible working hours
• Corporate AI subscriptions, including Claude, Gemini, and GPT
• Access to a rewards marketplace offering products and language courses, redeemable using the company’s internal currency
• Two-week Scrum and Agile sprints