Arun Kumar Chauhan has over 5 years of experience as a system administrator and technical support engineer. He currently works as a system administrator for Cygnus Equipments & Rental Pvt. Ltd., where his responsibilities include managing servers, backups, firewalls, thin clients, biometric systems, and more. Previously he held technical support roles at Akal Information System Ltd, Foster Placement Services Pvt. Ltd., and Appin Knowledge Solutions Pvt. Ltd., where he performed tasks like remote desktop support, software installation, password resets, and troubleshooting hardware and applications. He has a diploma in computer hardware and networking and certifications in MCSE and CCNA.