Krzysztof Zwolenik DevOps engineer
Bilbao, Spain
+34 694 254 557
DevOps Engineer with 7+ years of experience in the field, specializing in Kubernetes, Terraform, and cloud infrastructure automation. Proven track record of enhancing operational efficiency across teams to deliver scalable and reliable solutions.
Certificates
Certified Kubernetes Administrator (CKA) 2022.06.03
AWS Certified SysOps Administrator – Associate 2023.10.30
HashiCorp Certified: Terraform Associate (003) 2024.07.15
Projects
Kubernetes on Digital Ocean

This project was developed to showcase the automated deployment of a Kubernetes cluster on DigitalOcean, employing Terraform for infrastructure provisioning and GitOps practices for configuration management.

  • Automated Kubernetes cluster on DigitalOcean using Terraform and Flux CD, integrating Vault, Kong ingress with TLS and Prometheus stack for monitoring
  • It demonstrates my expertise in deploying a secure, observable Kubernetes cluster using modern DevOps methodologies
  • it integrates various cloud-native technologies and follows best practices to create a high-quality infrastructure solution
Roadmap.sh DevOps Challenges

Roadmap.sh DevOps challenges provide practical projects from basic server setups to advanced deployments, which I often extended by experimenting with my own approaches or tools to further hone my skills

Skills
KubernetesTerraformPython, BashLinuxAWSMonitoringCI/CDNetworkingAnsibleDocker
Work Experience
Cloud Admin L2Aditi – Bogota, Colombia, later Remote from Spain 2023.03 – Present
  • Manage Kubernetes clusters on Amazon EKS as part of a Cluster-as-a-Service team, providing infrastructure for application teams.
  • Operate and troubleshoot Terraform pipelines in GitLab for cluster provisioning and upgrades.
  • Collaborate with the DevOps team to maintain and improve Terraform modules.
  • Handle Kubernetes manifests for internal cluster-specific tools.
  • Coordinate with AWS support to resolve infrastructure-related issues.
  • Monitor cluster health using Datadog, creating alerts and dashboards for visibility.
  • Optimize monitoring coverage while reducing Datadog costs.
  • Enhance team efficiency by developing CLI scripts to streamline routine tasks.
  • Work closely with application teams to address cluster-related needs and ensure reliable Kubernetes environments.
System AdministratorComarch SAS – Bogota, Colombia 2019.06 — 2023.03
  • Ownership of monitoring systems and client communication.
  • Managed on-premise Linux systems, Oracle databases, and Java applications.
  • Supported the transition to Docker-based microservices and early-stage Kubernetes on OpenShift.
  • Automated a complex, error-prone manual process using an internal tool, reducing execution time from one hour to a few minutes.
  • Maintained and troubleshot Jenkins pipelines, contributing to permanent solutions.
  • Configured Prometheus and created advanced Grafana dashboards for monitoring.
  • Improved system observability with Nagios by creating custom bash scripts.
  • Collaborated with international clients (Dominican Republic, Colombia, and Argentina).
  • Provided ad hoc SQL reports for client-specific requests like data integrity checks.
1st line support enginnerComarch SA – Cracow, Poland 2017.07 — 2019.06
  • Provided technical support for on-premise Linux systems, Oracle databases, and Java applications (Apache, Tomcat, and Oracle WebLogic).
  • Automated routine tasks using Bash and Python scripts scheduled with cron, improving efficiency.
  • Extended Nagios monitoring by creating custom scripts for system checks not covered by default.
  • Maintained high SLAs by resolving tickets promptly and collaborating with 2nd line engineers and developers.
  • Documented monitoring procedures and standard operating workflows to facilitate knowledge sharing across the team.
Education
Computer ScienceAGH University of Science and Technology – Cracow, Poland 2014.08 — 2018.03
Languages
Polish: nativeEnglish: fluentSpanish: fluent