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Oleksandr K.
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Oleksandr K.

Cloud, Platform, DevOps, Security, SRE, Architecture - Engineer

Stable platforms. Lower cloud bills. Working AI in production. Clean security audits. Engineering should move the business forward, not slow it down. When it gets complicated, all stop - I start there, fix it, own it, document it, and hand it over. CORE SERVICES: AI WORKFLOW IMPLEMENTATION • AI adoption for practical business workflows • Agentic AI workflow design and implementation • Internal knowledge search and RAG systems • LLM and AI API integration • Private LLM deployment • AI-assisted document, support, operations, and engineering workflows • Human approval and fallback workflow design AI AND GPU INFRASTRUCTURE • AI-ready server and cloud environments • GPU server and GPU Kubernetes cluster deployment • GPU inference deployment and optimisation • KServe, Seldon, MLServer, and model serving • Ollama and local LLM hosting • Stable Diffusion and ComfyUI deployment • AI model, extension, and custom script setup • RunPod, Modal, Groq, cloud, on-premise, and private AI environments CLOUD, DEVOPS, CI/CD AND PLATFORM RELIABILITY • Cloud cost assessment and improvement • Platform reliability assessment and improvement • Kubernetes operations and troubleshooting • Kubernetes cluster deployment: EKS, GKE, AKS, OpenShift, vanilla K8s, MicroK8s, K3s, and other environments • Private cloud and hybrid infrastructure • Broadcom VMware Cloud Foundation and vSphere Kubernetes Service • Infrastructure as Code: AWS CDK, CDKTF, Pulumi, Terraform, and Ansible • GitOps and CI/CD: Argo CD, GitHub Actions, GitLab CI/CD, Jenkins, and others • Monitoring, logging, alerting, incident investigation, and operational automation MIGRATION AND MODERNISATION • Cloud, private cloud, on-premise, and hybrid migration • Application platform modernisation • Docker and Docker Compose migration to Kubernetes • Virtual machine migration to KubeVirt or Kubernetes-based platforms • VMware, KVM, Proxmox, and VirtualBox migration • Kubernetes and OpenShift adoption • Serverless platform implementation • Operating system and infrastructure upgrade • Application, database, and deployment modernisation SECURITY REMEDIATION AND AUDIT PREPARATION • Security findings remediation • Vulnerability assessment and technical remediation • Access control and secure configuration improvement • Operating system patching and hardening • Web Application Firewall deployment • Logging, monitoring, backup, and recovery controls • Security evidence and technical documentation • ISO 27001, PCI-DSS, and regulated-environment technical preparation APPLICATION AND AUTOMATION DELIVERY • API development and integration • Web and mobile application development • Rust, JavaScript, Go, Java • Python and shell automation • Ansible playbook development • Open-source software deployment and customisation • Open-source product research and development • Application delivery from discovery and design through development, testing, staging, user acceptance, and production release ONGOING ENGINEERING SUPPORT • Monthly engineering capacity • Architecture and platform decisions • Platform improvements and maintenance • Technical reviews and troubleshooting • Infrastructure and application delivery support • Engineering team guidance and knowledge transfer

🇨🇦Toronto, Canada$65/hr100% JSS5.00 (16)Since Feb 2016

Earnings and projects

MRR
$157

Last 6 months ÷ 6

World#121,787 / 412k
🇨🇦Country#1,782 / 7,133
Revenue, last 30 days
$108

Last 6 months: $945

World#90,941 / 412k
🇨🇦Country#1,230 / 7,133
Total earnings
$29k

Billed in all: $29k

World#114,062 / 412k
🇨🇦Country#2,193 / 7,133
Per project
$1.1k

$236 in the last 6 months

World#119,684 / 412k
🇨🇦Country#2,173 / 7,133
Projects, last 6 months
4
100% fixed0% hourly
World#51,813 / 412k
🇨🇦Country#798 / 7,133
Projects in all
27
85% fixed15% hourly
World#106,301 / 412k
🇨🇦Country#1,945 / 7,133

Earnings, last 30 days

$28.8k+$108 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$28.6k$28.7k$28.8kOct 8Oct 23Nov 7

Skill rankings: Top 20% in Docker Swarm Mode

Ranked by MRR among everyone on Upwork with the skill.

  1. #8Docker Swarm Mode40 freelancers · 🇨🇦 #1Top 20%
  2. #16System Hardening34 freelancers · 🇨🇦 #1Top 47%
  3. #19Information Technology Strategy89 freelancers · 🇨🇦 #2Top 21%
  4. #24Network Architecture83 freelancers · 🇨🇦 #1Top 29%
  5. #64Virtualization305 freelancers · 🇨🇦 #2Top 21%
  6. #76Network Design311 freelancers · 🇨🇦 #3Top 24%
  7. #77IT Compliance Audit192 freelancers · 🇨🇦 #3Top 40%
  8. #149Vulnerability Assessment519 freelancers · 🇨🇦 #4Top 29%