Senior Platform Engineer

O projekcie: XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America. At XTB, we focus on the development of our employees, giving them opportunities to gain knowledge and skills in various fields, as well as offering a number of training and development programs. If you are looking for challenges and want to gain valuable experience in an international business environment, XTB is the right place for you. We are a certified Great Place to Work company. Wymagania: - Many years of practical experience with GitLab (administration, CI/CD, runners), - Very good knowledge of GitLab CI/CD: - multi-stage pipelines, - includes, templates, rules, needs, - optimization of build time and costs, - Experience in maintaining and scaling GitLab Runners (Docker / Kubernetes), - Experience in automating infrastructure for GitLab using Terraform,Very good knowledge of Git and working with repositories, - Knowledge of containerization (Docker) and basics of Kubernetes, - Experience with Artifactory or other artifact managers, - Ability to independently design and maintain the entire CI/CD platform end-to-end, - Proactive approach to platform stability, performance and maintenance. Nice to have - Experience with GitLab Self-Managed (upgrades, backups, HA), - Knowledge of Helm and ArgoCD, - Experience with GitOps, - Knowledge of Java / Kotlin / Angular / C++ (reading code, debugging pipelines), - Experience in building self-service CI/CD for development teams. Codzienne zadania: - Design, development and long-term maintenance of the CI/CD platform based on GitLab (Self-Managed / SaaS), - Building, development and optimization of advanced GitLab CI/CD pipelines for multiple teams and technologies, - Management of GitLab Runner infrastructure (Docker, Kubernetes, shell, autoscaling), - Maintenance, optimization and cleaning of runners (cache, images, resources, costs), - Designing CI/CD standards, pipeline templates and shared libraries,Automation of release processes, deployments and promotion of artifacts between environments, - Maintenance and development of infrastructure for GitLab as Infrastructure as Code (Terraform), - Integration of GitLab with artifact repositories (Artifactory), - Monitoring, troubleshooting and ensuring high availability of the CI/CD platform, - Support for development teams (backend / frontend) in the area of CI/CD and DevEx, - Ensuring pipeline security (secrets, permissions, compliance).