AWS Engineer & Cloud Engineer & DevOps Engineer

Zkušený DevOps Engineer s vášní pro cloudová řešení a automatizaci. Zkušenosti se správou cloudové infrastruktury na AWS a GCP, kontejnerizací pomocí er a Kubernetes a infrastrukturou jako kód pomocí Terraform. Zběhlý v CI/CD pipeline, monitorovacích systémech a zabezpečení sítě. Silné dovednosti v oblasti řešení problémů a efektivní komunikace napříč týmy. Zkušenosti zahrnují migrační projekty, nastavení prostředí CI/CD a správu clusterů Kubernetes.

DevOps Engineer

(MAY 2022 - PRESENT)

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• Main project's goal is migration from the outdated Hybris system to the new microservices based solution deployed in the Kubernetes cluster.Responsibilities included:
• Setup, update and develop Cloud and Kubernetes infrastructure using IaC approach (AWS, EKS, RDS, EC2, S3, SES, SNS, SQS, OpenSearch, VPC, Helm, Terraform, Terragrunt, Kafka, Vault, Sonarqube, GCP)
• Develop and support CI/CD environments (GitLab, Jenkins)
• Deployment services (Gitlab, Helm, Kubernetes)
• Configure monitoring and logging systems, manage alerting (ELK,Prometheus, Grafana, ElastAlert, integration with Slack)
• Analysis of failures, identifying and isolating the source of problems
• Automation(development scripts and pipelines) of routine tasks (Python,Bash, GitLab pipelines)
• Manage environments in GCP
• Manage Kubernetes clusters
• Develop backup and restore procedures
• Configure the network connectivity between AWS accounts
• Virtual Machines configuration (Ansible)
• Manage data in Kafka cluster (maintenance during application update,download data to analyze)
• Security administration and access management (VPN, Vault, AWS SG, NACL,WAF, IAM, access to GitLab repos)
• Keep cloud services updating, develop the updating plans
• Provide advice to colleagues during development and support processes
• SonarQube integration
• Migrated Jfrog Artifactory from EC2 to Kubernetes + RDS + S3, upgraded tothe current stable versio
• Moved Keycloak configuration to IaC approach, built terraform module tomanage Keycloak, developed CI/CD pipeline to automate process
• Migrated CI/CD pipelines from Jenkins to Gitlab

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DevOps Engineer

(MAY 2021 - APRIL 2022)

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Responsibilities included:

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• Administration and development infrastructure in AWS to enterprise E-Commerce project (EC2, Route53, VPC, RDS, RedShift, S3, Java, Linux, PHP, SQS, SNS, SES, Terraform, Git, Postfix, Jenkins, Puppet, Spacewalk, Docker, Sentry)
• Transformation existing infrastructure by corporate requirements (migration services to separate AWS accounts)
• Deployment infrastructure and services configuration, fix issues in existing CI/CD pipelines and develop new features(GitHub, Jenkins)
• Puppet server upgrade, code migration, built new classes and manifests
• Monitoring infrastructure state and services, configure alerting (Zabbix, Cloudwatch)
• Logging management and analyze (ELK, Splunk, Syslog-ng)
• Security requirements implementation (Security groups, NACL, VPC)
• Access management (LDAP, SSH keys, VPN)
• Configure the network connectivity between AWS accounts
• Provide advice to development team
• Develop backup and restore procedures
• Automation(development scripts and pipelines) of routine tasks (Bash,Jenkins pipelines)

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DevOps Engineer

(NOVEMBER 2019 - MAY 2021)

Responsibilities included:

• Administration highload Java project. Main stack — Linux, Java, Nginx, HaProxy, PostgreSQL, MS SQLServer, Kafka, Zookeeper, Cassandra, RabbitMQ, ELK, Sentry, Vault, Prometheus. Cloud services(AWS,GCP) and on-prem.
  • Minio service implementation, connect to GCS backend
  • Failures analyzing, troubleshooting and searching of potentialbottlenecks
  • Integrate SSO authorization in Minio with Keycloak and corporate LDAP
  • Migration from Ansible to Puppet, develop classes and
  • Migration Prod environment from on-prem to GCP Compute engine
  • Rundeck implementation
  • Terraform implementation, move cloud resource management to IaC approach,import existing resources to terraform state
  • Investigation of implementing GitOps approach to application CI/CDpipeline(test environment has been migrated to deploy by ArgoCD)
  • DB replication configuration (PostgreSQL logical replication)
  • Access management (Vault, VPN, LDAP, GitLab user management)
  • Automation configuration (Ansible, Puppet, GitLab), develop new playbooks
  • Monitoring servers and applications, alerting and logging (ELK, Grafana,Prometheus)
  • Automation of routine tasks (Bash, Python, Java, Rundeck, Gitlab,Jenkins)
  • Develop automation CI/CD pipelines (GitLab, Jenkins)
  • Administration GitLab and Jira servers
  • Backup data
  • Restore servers after failures
  • Deployment services
  • Migration existing infrastructure from On-Premise to Kubernetes cluster(Kubernetes, Helm, Jenkins, Harbor)