Portfolio

Linux Administrator & DevOps Engineer

PROFESSIONAL SUMMARY

  • Strong knowledge in network/security/systems administration and systems support in the Linux network environment.
  • Hands-on experience in supporting, automating, and optimizing mission-critical deployments in AWS, leveraging configuration management, CI/CD, and DevOps processes.
  • Experienced in using different types of Linux distributions and building their own flavours of Linux operating systems.
  • Immense knowledge in installation and configuration of LAN, WAN and wireless networks with active components such as routers, switches, firewalls, modems, access points, repeaters etc.
  • Experienced in hacking wireless networks and using kali Linux tools for pen testing.
  • Actively manage, improve, and monitor cloud infrastructure on AWS, EC2, S3, and RDS, including backups, patches, and scaling
  • Reduced costs by ~$1500/month by eliminating unnecessary servers, consolidating databases and auto scaling servers.
  • Built and deployed Docker containers to break up the monolithic app into microservices, improving developer workflow, increasing scalability, and optimizing speed
  • Wrote Puppet manifests and modules to deploy, configure, and manage servers
  • Automated build and deployment using Jenkins to reduce human error and speed up production processes
  • Reduced deployment time for critical agile project infrastructure from ~1 month to 2 days
  • Installed and configured Nagios to constantly monitor network bandwidth, memory usage, and hard drive status
  • Managed GitHub repositories and permissions, including branching and tagging
  • Implementation of Routing, Switching, Security, Load balancing & Wireless networking solutions
  • Implementation & troubleshooting of VPN tunnels
  • Implementation of Auto scaling in large infrastructure using ansible tower
  • Configuration of routers, switches, firewalls, load balancers, IPS & wireless network devices manufactured by Cisco, Linksys, TPLink, etc.
  • Malware removal (Virus/Worm/Trojan/Spyware/Adware/keylogger/Rootkit)
  • Packet sniffing & traffic analysis
  • Constantly learning new and important networking information.
  • Quick learner with ability to grasp new technologies, both software and hardware. 

TECHNICAL SKILLS

  • Experienced in Linux Bash scripting.
  • Configuration management & Deployment: Ansible, Ansible Tower and Terraform
  • Container Orchestration: Docker, Kubernetes
  • Good knowledge in Python, C, YAML, jinja, html, php, JavaScript
  • Version control systems: Git
  • CI/CD: Jenkins, GitLab, GitHub, Drone
  • Monitoring: Nagios, Grafana, Prometheus, InfluxDB, Telegraf, Elastic search, Graylog, Splunk
  • Vulnerability Assessment: Openvas, Metasploit, Nessus
  • VPN: OpenVPN, Softether
  • Cloud Computing: AWS, GCP, DigitalOcean, Alibaba, Vultr, Linode, OpenStack, VMWare.
  • Experienced in web development using HTML, JS, XML, CSS, PHP.
  • Good knowledge in MySQL programming.
  • Worked with WordPress in designing e-commerce sites.
  • Adobe photoshop and Microsoft Office.
  • Well-known Operating Systems:  Windows XP/Vista/NT, Red Hat, Arch, Ubuntu, Gentoo, Crux, LFS.

HARDWARE SKILLS

  • Installation & configuration of LAN.
  • Troubleshooting the networking related problems.
  • Troubleshooting & maintenance of PCs.
  • Installation of Operating Systems Windows and Linux.
  • Installation of device drivers & hardware components.
  • Configuration of Printer, Modem, Scanner.

NETWORKING SKILLS

  • Setting of small & medium-sized networks with bus & star topology.
  • Cabling & crimping for systems, hubs, switches & routers.
  • Network devices, Repeater, Hub, and Switches.
  • Topologies, Media Access methods.
  • TCP/IP services, IP addressing & subnetting.
  • DHCP, DNS, SSH, VPN, Port forwarding, DMZ, Static routing etc.
  • installation & configuration.

RESEARCH PAPERS

  • International Journal of Scientific & Engineering Research -IJSER

Creating a custom flavor of Linux OS From Scratch with Web Interface – Akhil Jalagam