Mariusz L.

Specialties: Systems management and configuration: Professional experience in installation, configuration and maintenance of Elasticsearch databases, management of Linux and Windows Server systems. Development and automation: Programming skills in Java, Python, Bash and PL/SQL, creating scripts to automate processes in Unix and Linux infrastructure. Data monitoring and security: Experience configuring Wazuh, creating Kibana dashboards, working with Logstash, and implementing ETL processes. Database administration: Familiarity with PostgreSQL, Oracle, Elasticsearch and MongoDB, managing data warehouses and optimizing SQL queries. DevOps and CI/CD tools: Hands-on experience with Docker, Ansible, Git, JIRA. Ready for collaboration: As a freelancer, I am open to a variety of projects and challenges. Whether you need support in configuring systems, optimizing IT processes, or developing software, I am ready to deliver value to your business.