Nikola V.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Experience with SOC2 type 2 and HIPAA certified environments. I have experience with Nginx (as a web server, balancer, proxy, and FastCGI proxy), Apache as a web server, and proxy, setting up PHP (as mod_php and fpm) and a variety of PHP modules and running PHP. I worked at Java projects and with Tomcat and Jetty servers. Node, Python, and Ruby applications configuration and optimization. Postgres, MySQL, Mongo, Elasticsearch, and Redis databases and their backup solutions, replication. OpenVPN, cron jobs, SSL certificates. Mail servers: postfix, dovecot, Exim, DKIM, SPF, DMARC. Securing servers, iptables, optimizing DB, and PHP web servers (varnish, Memcached, caching content, setting expirations, opcache, etc), setting permissions and users, etc. Tunning kernel parameters. Setting up and managing git, svn, and mercurial repositories. Jenkins, setting Symfony, Laravel and Composer environments, Ruby (through rubyenv or system-wide). I also know to manage DNS (clear bind9 or hosted DNS solutions) and CDN services (liquid web, Cloudflare). About hosting solutions I have used since now AWS (EC2, S3, ECS, CloudFormation, Fargate, RDS, ElastiCache, CloudFront, Route53, ELB, ALB, ECR, EFS, IAM, Certificate Manager, VPC, All network stuff), GCP, Digital Ocean, Liquidweb, Hetzner, OVH, online.net, Bluehost, DreamWeb, NameCheap, etc. I am good with different cluster setups, separate DB, app, balancer, and other servers, securing connections between them, etc. Writing Puppet, Ansible, and Terraform code for centralized automated server deployments. Dockerizing the applications and providing solutions for different run environments. Haški Corp Nomad, Consul and Vault. Gitlab CI. I have experience with Debian, Ubuntu, Gentoo, Fedora, Red Hat, Centos, Arch, SUSE, and other Linux distributions. Complete setup and maintenance at any hosting provider. Custom bare metal servers setup. I have experience with Proxmox, KVM, OpenVZ, and VMWare virtualization. Provisioning, backup solutions, system setup, moving machines from one platform to other, etc. About VPN I have experience with OpenVPN (with or without keys, LDAP auth, etc) and with Mikrotik PPTP VPN. Also, I know to work with and to set up dynamic routing, DNS, DHCP, access lists, static, routing, multi wan with failover, BGP, long-distance wireless links, QoS, queues, Hotspot, etc using Mikrotik and Ubiquiti solutions. About premade systems, I can set up WordPress, Joomla, Magento, Redmine, etc, and tune their parameters and suggest environments for best performance. About panel solutions, I have experience with VestaCP, Plesk, WHM, CPanel, etc, but I prefer to use servers without these panels, so I use them only if that is your wish. Thank you for reading, I hope that we will have good cooperation in administrating your servers and projects.