Author Image

Hi, I am Radek

Radosław Śliwicki

(Sys,Dev,Sec)Ops

As a DevOps/SysOps engineer, I focus on designing, deploying, and managing IT infrastructure both on‑prem and in the cloud. I work with an Infrastructure as Code (IaC) approach, building scalable and secure solutions on platforms like VMware, Hyper‑V, KVM, Azure, AWS, and Google Cloud. I automate deployments and infrastructure management using tools such as Terraform, Ansible, GitLab, GitHub, and Azure DevOps.

ITIL 4 Foundation
APMG Lean IT Foundation
HashiCorp Certified Terraform Associate
Microsoft Certified Azure Solutions Architect Expert
Google Professional Cloud Architect
AWS Certified SysOps Administrator Associate
Microsoft 365 Certified Administrator Expert
VMware Certified Professional - Data Center Virtualization
Extreme Networks Extreme Certified Professional in Solutions Design
See more on LinkedIn

Skills

Kubernetes
Kubernetes

I know how to deploy and manage containers on Kubernetes. I’ve got experience troubleshooting issues with pods and the cluster itself.
Microsoft 365
Microsoft 365

I set up and configure Microsoft 365 environments for organizations and teams. I also know how to build solutions based on Power Platform.
Powershell
Powershell

I write scripts for automation and configuration using PowerShell.
Ansible
Ansible

I write code for automating and configuring infrastructure using Ansible.
Terraform
Terraform

I write code to automate and configure infrastructure using Terraform.
Bash
Bash

I write scripts for automation and configuration using Bash.
Cloud
Cloud

I’ve worked with most of the major cloud platforms like GCP, AWS, and Azure.
Docker/Docker Swarm
Docker/Docker Swarm

I set up container environments for organizations and support the transformation process.
Monitoring IT
Monitoring IT

I can set up IT service monitoring environments using Prometheus and Zabbix. I have experience writing metric exporters.
Operating systems
Operating systems

I manage and configure services and operating systems in Linux environments and beyond.
Networks
Networks

I know how to set up and manage network infrastructure across different layers—L3/L2, UTM, and firewalls.
Security
Security

I have the skills to deploy and configure UTM, DLP, AV, XDR, Patch Management, and SIEM solutions. I also have experience creating security policies.
Databases
Databases

I have experience installing, configuring, and administering databases like MSSQL, PostgreSQL, MySQL, and NoSQL systems such as MongoDB. I also create and optimize queries.
Git
Git

I have experience working with Git-based development. I mostly use Azure DevOps and GitHub, but I’ve also worked with GitLab.