Piotr Gaczkowski

Wrote technical articles for various blogs dealing with DevOps topics (Docker, Kubernetes, Ansible, Terraform, Jenkins, and more). Edited other technical writers' articles. Authored technical articles for various blogs dealing with cloud and architectural topics (mainly AWS). Expanded an eBook about Kubernetes for a customer.

Reworked the ad serving system to properly use Docker containers. Orchestrated the Docker Swarm for easy scaling. Prepared deployment description using Ansible. Helped with the deployment of a redundant cluster serving application in Flask utilizing MongoDB. Prepared the migration for the database. Established a Vagrant environment for future development and maintenance. Introduced Jenkins CI in projects using manual development and tests. Automated new deployments and helped with migration of existing ones to employ infrastructure-as-code with Ansible and Vagrant. Created and implemented architecture for ad serving system using Amazon Web Services, Terraform, and Ansible.

Developed a scalable and compartmentalized AWS environment for Rancher deployment. Configured AWS Secret Manager to store sensitive data necessary for deployments. Modularized Terraform code so it can be reused for different customers. Implemented resource tagging which allowed for one-glance customer billing as opposed to previous usage-based estimation. Created deployment script allowing to roll out an entire environment in the desired region with one command. Ensured the use of best practices for security, collaboration, scalability, cost-effectiveness, and high availability.