Nikola Simić

DevOps engineer

I'm a DevOps engineer coming from a software engineering background, based in Novi Sad, Serbia. I've been building software since secondary school, and these days my work is mostly revolving around designing, optimizing and running cloud infrastructure on AWS, Azure or Hetzner. Outside of work, I enjoy working on my homelab, contributing to open-source software or just learning whatever new (or old) technology I find interesting. This blog is a place for me to share knowledge, reflect on the industry news and document various projects.

Skills & interests

Problem solvingCommunicative and disciplined, I enjoy non-trivial problems that need both infrastructure, application and domain knowledge.
OptimizationRight-sizing infrastructure to what the application actually needs, and cutting cloud costs and deployment times.
Homelab & open sourceI run my own infrastructure at home and prefer open-source tools I can understand, tweak and self-host.

AWS
Azure
Hetzner
Kubernetes
Docker
Terraform
Ansible
GitHub Actions
GitLab
Forgejo
Linux
Proxmox
WireGuard
Grafana
.NET
Python

Certifications

Aws certified cloudops engineer associate

Featured posts

Simple, cheap and automated K8S cluster setup

7 April 2026·9 mins

K8s Ansible Terraform

I am currently learning kubernetes and of course, there is no better way to learn than to practice on a real cluster. In this post I’ll present a simple, cheap and an automated way of building a real Kubernetes cluster with Terraform and Ansible

Podman - daemonless Docker alternative

10 June 2025·5 mins

Containers Docker Podman

I wanted to take a deeper dive into the Podman tool for container management and compare it to well-established Docker platform

Bypassing network restrictions using ICMP tunneling

24 March 2025·10 mins

Networking Cybersecurity Personal Project

When I learned about the concept of ICMP tunneling, I was fascinated. I ended up researching it and creating software that utilizes this method as a part of my Bachelor's thesis

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