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Hello, I'm Yurii Kosyi with over 8 years of experience in IT, focusing on system administration and DevOps. I specialize in creating scalable, secure, and efficient infrastructures, effectively organizing developer workflows, and maintaining secure, reliable environments to support business goals. My primary focus is Google Cloud (GCP): Kubernetes on GKE, Cloud SQL, Cloud Run, and BigQuery — with tight IAM integration and Google Workspace as the central corporate identity and access layer.

• Email: y.kosiy@gmail.com
• LinkedIn: Yurii Kosiy
• Telegram: @dreemix_com
• Phone: +38/096/5563936

• Kubernetes: Deploying and managing scalable clusters, with deep expertise in GKE.
• Terraform & Ansible: Automating infrastructure as code and configuration management.
• Docker & Artifact Registry: Expertise in containerization, image management, and application lifecycle.
• GitOps & CI/CD: Managing deployments with ArgoCD, FluxCD, Cloud Build, GitLab CICD, and GitHub Actions.

• GCP: GKE, Cloud Run, Postgres Cloud SQL, Cloud Build, Artifact Registry, Cloud Storage, BigQuery, IAM (Workload Identity, Service Accounts).
• AWS: EC2, S3, Lambda, EKS, RDS.
• Bare Metal & Providers: Extensive experience managing large fleets of bare metal servers on OVH and Hetzner.

• FreeBSD & Linux Expertise: Daily usage, management, and administration of a vast number of FreeBSD and Ubuntu bare metal servers.
• Scripting: Automating processes with Bash, Python, and Golang.

• GCP Native & Open Source: Extensive experience with monitoring on GCP using Prometheus, Cloud Logging, and Grafana for real-time analysis and system health.
• ELK Stack: Centralized logging and troubleshooting system health.

• LLM Deployment: Deploying and managing Large Language Models on vLLM.
• AI Infrastructure: Building robust infrastructure for multilingual communication, image recognition, and specialized models for content safety and moderation.

• Google Cloud IAM: Organizations/Folders/Projects, roles and policies, service accounts, Workload Identity (GKE/CI).
• Google Workspace Admin: SSO/SAML, groups-based access, OU structure, automated onboarding/offboarding; groups-driven RBAC across GCP and SaaS.

• Managed large fleets of baremetal servers (FreeBSD and Ubuntu) across OVH and Hetzner, utilizing Ansible for configuration management.
• Managed Kubernetes clusters on GKE, automated deployments via ArgoCD and Cloud Build, and improved performance and reliability metrics.
• Built AI infrastructure: deployed LLMs on vLLM for multilingual communication and image recognition, focusing on content safety and moderation models.
• Deployed and monitored containerized workloads on GKE and Cloud Run; managed Postgres Cloud SQL instances and IAM policies.
• Implemented robust monitoring on GCP using Prometheus and Cloud Logging.
• Integrated Google Workspace with Cloud IAM for centralized, least-privilege access to GCP resources (groups-based RBAC, SSO).
• Built data ingestion paths and scheduled jobs for analytics in BigQuery (via Cloud Storage and ETL tooling).

• Administered Linux servers and automated workflows for legacy systems.
• Managed cloud infrastructure and ensured high availability.
• Streamlined deployments using Helm and container technologies; introduced groups-based access via Google Workspace and IAM where applicable.

• UA-WEB (2013-2014) — SEO Specialist, Team Lead, Web Developer (PHP).
• Aweb (2013) — SEO Specialist.
• NOVUS / Leda Company (2011-2013) — SAP Basis Administrator / System Administrator (Linux).
• Chornomorska Perlyna JSC (2008-2010) — System Administrator.
• Odeskyi Korovai JSC (2006-2008) — System Administrator.

• Bachelor’s Degree in Electrical Engineering
  Odesa National Polytechnic University (2006) - specialization in Power Supply for Industrial and Municipal Facilities

• SoftServe Academy Course: Practical DevOps (2024)
• DevOps та Kubernetes. Практичний інтенсив+ by Prometheus (2024)
• FastLane (2011) - Course on IBM AIX (Linux) Administration and Oracle DB

• Clear Communication and Team Collaboration.
• Problem-Solving and Quick Troubleshooting.
• Strong Organizational Skills for Infrastructure Projects.

• AI/ML: Interested in new tools and approaches (LLMs, MLOps), integrating them into workflows.
• General aviation: Not a pilot yet, but working towards it (on hold due to the war).
• Beekeeping: I run a small apiary. Great way to clear my head and a chance to work with my hands outdoors.
• Hiking & Cycling: Enjoy active outdoor recreation.

I’m open to collaboration and discussions. Let’s connect on LinkedIn or explore my work on GitHub.

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