Ameer Hamza

Linux System Administrator

Hoboetech Pvt. Ltd. • Período integral

Jun 2024 - Present • 1 yr 11 mos

• Built and deployed physical and virtual servers from scratch, including OS installation, RAID configuration, and physical networking setup. • Configured network interfaces, routing, firewall rules, and external/internal access for production environments. • Deployed and optimized Apache2, HAProxy, and Nginx as web servers and load balancers with virtual hosts, reverse proxies, modules, logging, and performance tuning. • Installed, configured, and optimized MySQL, MongoDB, Redis, and Dragonfly, including master–slave and master–master replication, clustering, and high availability setups. • Managed MongoDB clusters, Redis clustering/replication, and database performance tuning for production workloads. • Deployed and managed Grafana, Node-RED, and custom exporters for Apache2, Kannel, SMPP, and KSMPP to enable infrastructure-wide monitoring and alerting. • Implemented centralized logging using Graylog, Filebeat, Elasticsearch, and Kibana for system, application, and network logs. • Automated deployments and configuration using Ansible, along with Bash, Python, PHP, and Node.js scripting. • Managed PM2 processes, production cron jobs, and log rotation across multiple services. • Administered and troubleshot Kannel and SMPP (A2P/P2P) messaging platforms, including traffic routing, load balancing, international and domestic messaging flows, and log analysis. • Provided application-level and network-level support; investigated performance bottlenecks, storage issues, and system failures. • Designed and maintained backup servers, disaster recovery plans, and DR documentation to minimize downtime and improve service uptime. • Administered Proxmox infrastructure including cluster setup, HA, VM/container replication, and network design. • Worked with VMware Cloud Director managing VMs, networks, firewalls, VPNs, NAT, rules, replication. • Secured servers via iptables & upgrades. Analyzed traffic with Wireshark/tshark. Managed NFS, LVM, Cloudflare DNS.

Penetration Tester & IT System Support

Fiverr & Upwork, Freelance • Meio período

Oct 2022 - Present • 3 yrs 7 mos

• Level 2 seller with 100+ successful projects on Fiverr. • Specialized in Microsoft Active Directory and website penetration testing. • Secured Linux servers, configured firewalls, and managed network switches and routers. • Proficient in AWS Cloud, OS management (Kali Linux, CentOS, Ubuntu, Redhat Linux, Windows Server, Linux Mint), and virtualization (Virtual Box, VMware). • Delivered remote IT support for seamless operations.

DevOps Internee

THE DEV CORPORATE • Meio período

Jan 2023 - Jun 2023 • 5 mos

• Mastered Linux administration, ensuring smooth operations and peak IT performance. • Leveled up with AWS Cloud, harnessing its power for secure, scalable solutions. • Streamlined deployments with Docker & Kubernetes, automating containerized applications.