Dmytro Serbeniuk

• Designed and deployed scalable cloud-based systems for improved application performance and reliability.
• Designed and implemented containerization strategies using Docker and Kubernetes, improving resource utilization and management.
• Documented project design for reference and future use cases.
• Automated deployment processes using ArgoCD, enabling continuous delivery and improving deployment efficiency
• Utilized Helm for managing Kubernetes applications, ensuring consistent and repeatable deployments.
• Integrated GitHub Actions to automate CI/CD pipelines, enhancing code quality and accelerating release cycles.
• Managed Kubernetes clusters on AWS EKS/Azure AKS, ensuring high availability and robust security for cloud applications.
• Employed Terraform for infrastructure as code, enabling reproducible and audible infrastructure changes.
• Participated in on-call rotations, providing 24/7 support to ensure system uptime and quickly resolve critical issues.

Responsibilities:

• Designing and implementing highly-available cloud infrastructures in Amazon Web Services (AWS) and Azure;
• Development of the helm charts for application deployment;
• Monitoring with Prometheus, Grafana, AWS CloudWatch;
• Managing Kubernetes clusters on EKS and AKS;
• Develop the monitoring architecture and implement monitoring systems, dashboards, escalations, and alerts;
• Optimizing the time to market through CI/CD pipelines;
• Provisioned resources in AWS using terraform;
• Infrastructure deployment in Azure cloud;
• Built workflows to create immutable infrastructure in AWS;
• Application containerization using Docker;
• Using Initializing terraform state as a backend using GitLab CI/CD, versioning terraform state files, locking and unlocking states;
• Using Checkov in GitLab CI pipelines to provide a simple, automated way to apply policies to terraform;
• Using kaniko to create container images from a Dockerfile inside a Kubernetes container or cluster;

Used technologies:

• Azure/AWS
• Kubernetes, Helm
• Docker
• Terraform
• IAM, making group policy objects, SSO, Setting up Users, rules, Permissions.
• CI/CD, GitLab CI/CD, GitHub Actions
• Azure Active Directory
• Prometheus, Grafana, Loki.

System Administrator And Technical Support with over 2 years of experience in the area of Virtualization with Installation, administration, patches, up-gradation, configuration, security issues, performance tuning, support, and troubleshooting

Responsible for servers, server room, and end-users (~600 users) Responsible for connecting 50 retail locations and resolving any network issues

• Implementation SOC 2 compliance
• Security IT tools such as network and web application firewalls, two factor authentication.
• The availability principle refers to the accessibility of the system, products or services as stipulated by a contract or service level agreement (SLA)
• Implementation NOC teams : Record incidents and correlate them with the events , apply appropriate workarounds. Communicate and coordinate resolution with other support levels including third party partners and vendors.
• Monitoring of infrastructure services and equipment;
• Development, creation and support of virtual infrastructure and other services of the Company;
• Maintenance and configuration of cloud services equipment, equipment selection;
• Maintenance and configuration of the software part of cloud services;
• Migrated GitLab from local servers to AWS and also managed users and granted access rights on the project;
• GitLab version upgrade and vulnerability update;
• Writing documentation in GitLab;
• Used technologies:
  Google admin, Microsoft 365: User Accounts та Groups, Teams, Licenses, Security.
• GitLab CI/CD
• Azure AD
• AD, DNS, DHCP, NAT, VPN, FTP
• Windows/linux Server, AWS
• Grafana, Prometheus
• Cisco, Mikrotik, HP
• ESXi/VMWare
• Atlassian (Jira, Confluence)