Hire the Best Bash Developers
in Serbia

Ever since I was a kid, I've been fascinated by computers. I was introduced to Linux almost 15 years ago, and that was the time I discovered my first true passion.. I worked as a software developer (iOS - Swift) and Linux system administrator, but I wasn't satisfied with neither developing corporate/commercial applications, nor repeating same routines like adding/removing users, setting up VPSs, configuring programs following the same conventions.. I needed something to satisfy my passion for creativity and problem solving/algorithmic/programmatic thinking, but that is still related to Linux.. Enter Bash, an amazing way to interact and utilize full potential of your Unix OS in a totally programmatic manner.. I've been perfecting my Bash skills for over 5 years now, and I have quite a lot of complex projects, successful jobs and happy clients to support that.. I'm also quite proficient with Python as well, but given my stand on mainstream appliances, I'm only interested in jobs utilizing core principles, I DON'T have any "domain-specific" skills, so please DON'T contact me about AI/Machine Learning/Trading/Full stack/bot automation etc, only basic python skills.. That being said, if you're looking for a Linux expert who thinks of Bash as a programming language and vim as an IDE, feel free to reach out and I'd be happy to provide my services! :)

Linux user since 2001, working System Admin experience since 2008. DevOps Engineering since 2014, but used DevOps and SRE practices before I knew the words DevOps and SRE. Used Software Engineering skills in Linux administration (writing repeatable scripts ) since I started using Linux. Some of my skills and tech I have long experience with: - Linux , CentOS and RHEL, Debian, Ubuntu. Fedora. FreeBSD, Solaris, CoreOS, OpenWRT, IBM AIX, Oracle Solaris, Mikrotik, Terraform, Ansible, GitLab, git, Github, Jenkins, Vagrant, Packer, LXC, LXD, CRI-O, Podman. Docker Swarm Docker Compose, Kubernetes kubespray, kops, kubeadm kubeinit, OpenShift, Knative, Nomad, KubeVirt, AWS, Google Cloud Platform, DigitalOcean, Rackspace, IBM Cloud, Linode, ManageIQ (CloudForms), KVM, Xen, VirtualBox, VMware, oVirt, libvirt, bhyve, Proxmox, Solaris Zones, RH Satellite (Foreman + Katello), MaaS, Juju, Kickstart, Ceph, Gluster. Stratis. OwnCloud. Bash, Python, Ruby, Java, C, Go, Rust, Groovy, Graylog, Prometheus, Nagios, Graphite, Kibana, Fluentd, fluentbit, Icinga, Zabbix, Elasticsearch, Logstash, MySQL, PostgreSQL, MariaDB, Cassandra, CouchDB, Etcd, OpenVPN, pptpd, WireGuard, Istio, nginx, apache gttpd, Tomcat, Jboss, Asterisk, WebRTC Worked with AI companies many years.

• Expert linux server administrator and DevOps • Apache2 webserver configuration (vhosts, proxy,load balancing) • NGINX webserver configuration from scratch (load balancer, proxy) • Docker containers, debugging, configuring compose files, docker swarm. • Qemu-KVM, Proxmox virtualization, LXC containers. • SFTP configuration for FTP access. • IPtables for blocking traffic in or out. • Issuing and implementation of SSL certificates in Nginx/Apache2. • HTTPS implementation, redirection from Non-SSL to SSL. • Expert skills in configuring/installing Zabbix monitoring. • Installing Zabbix agents, alerting, triggers, log monitoring, graphs. • Implementation of Maxmind GeoIP2 modules Apache/NGINX. • Configuring GeoIP based country blocks, redirections based of client IP's. • Ansible server orchestration. Configuring playbooks. • AWS, Digitalocean, Linode, Azure. • VPN implementation(OpenVPN,wireguard) • Proxy installation/setup • Cloudflare CDN implementation • MySQL, Redis, MongoDB installation/configuration. • Linux server file backups, mysql backups. • Linux shell scripting

Do you need a reliable System Administrator to configure your server, secure your Linux environment, or automate repetitive tasks? I am a Linux Administrator and DevOps enthusiast specializing in server infrastructure and automation. I help set up secure VPS environments, deploy web applications, and script automated workflows to save time. I can help you with: 1. Linux Server Administration (RHEL, Ubuntu, CentOS) VP/Server Setup: Configuring fresh servers on Hetzner, DigitalOcean, or AWS EC2. Security Hardening: Configuring Firewalls (UFW/Firewalld), SSH key authentication, and Fail2Ban to prevent attacks. User Management: Setting up permissions and groups. 2. Web Server & Deployment Nginx Configuration: Setting up Reverse Proxies, Load Balancing, and subdomains. SSL/HTTPS: Auto-renewing SSL certificates using Certbot (Let’s Encrypt). Deployment: Deploying static sites, Python, or Node.js applications to production. 3. Scripting & Automation Bash Scripting: Writing custom scripts to automate backups, file management, and logs analysis. Cron Jobs: Scheduling recurring tasks. 4. DevOps Practices Docker: Containerizing applications and writing Dockerfiles. CI/CD: Setting up basic deployment pipelines on GitHub Actions. Infrastructure as Code: Basic provisioning with Terraform. Why work with me? Clear Communication: I speak English (B2) and Russian (Native) and prioritize understanding your requirements before starting. Fast Response: available for urgent tasks and troubleshooting. Documentation: I don't just fix it; I document how I fixed it so you can maintain it later. If you possess a task involving Linux, Nginx, or automation, please send me a message. I am happy to discuss your project requirements.

Linux System Administrator with B. Com. Sc degree. I've been working on Fiverr (@lukapaunovic) as a freelancer since 2016. I have completed over 3000 orders on this platform and have over 2000 5+ star reviews. Looking forward to bring my expertise to UpWork as well. With over 13 Years of experience, I have worked with more than 5,000 clients in the Web Hosting Industry. I was the owner of two major Web Hosting companies in Serbia with over 1,500 clients each. I am dedicated, passionate and constantly evolving.