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
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $945
Billed in all: $28,751$29k
$236 in the last 6 months
Earnings, last 30 days
Skill rankings: Top 20% in Docker Swarm Mode
Ranked by MRR among everyone on Upwork with the skill.
- #8Docker Swarm Mode40 freelancers · 🇨🇦 #1Top 20%🇨🇦#1 of 1
- #16System Hardening34 freelancers · 🇨🇦 #1Top 47%🇨🇦#1 of 1
- #19Information Technology Strategy89 freelancers · 🇨🇦 #2Top 21%🇨🇦#2 of 3
- #24Network Architecture83 freelancers · 🇨🇦 #1Top 29%🇨🇦#1 of 3
- #64Virtualization305 freelancers · 🇨🇦 #2Top 21%🇨🇦#2 of 7
- #76Network Design311 freelancers · 🇨🇦 #3Top 24%🇨🇦#3 of 6
- #77IT Compliance Audit192 freelancers · 🇨🇦 #3Top 40%🇨🇦#3 of 5
- #149Vulnerability Assessment519 freelancers · 🇨🇦 #4Top 29%🇨🇦#4 of 13