ARUN RAJ

[email protected] • +91 98454 26372
LinkedIn: https://www.linkedin.com/in/arun‐raj‐88487930/

PROFESSIONAL SUMMARY

Highly accomplished and results-oriented Senior System Administrator with over 15 years of extensive experience in managing complex IT infrastructures for diverse clients, including Managed Service Providers (MSPs) and enterprises. Proven expertise in Windows/Linux/VMware environments, cloud platforms (M365, Azure, AWS), robust backup solutions, and comprehensive infrastructure management. Adept at leading technical teams, optimising system performance, and ensuring high client satisfaction through effective problem-solving and strategic project execution. Seeking to leverage advanced technical proficiency and leadership skills to drive IT excellence in a challenging Senior System Administrator role.

WORK EXPERIENCE

Freelancing ‐ Helpdesk / System Administrator
02/2022 - Present
Upwork (Multiple Clients)
• Led system administration and helpdesk support for over 50 diverse clients and MSPs, resolving 95% of complex user and server-related issues within SLA targets, enhancing operational uptime
• Developed and managed robust backup and disaster recovery solutions using Veeam and Azure Backup, ensuring 100% data integrity and reducing recovery time objectives by 40%
• Executed critical data migration projects involving over 10TB of data with zero downtime, improving business continuity and client satisfaction
• Administered storage systems including SAN and NAS environments, optimizing capacity utilization by 25% and improving data access speeds
• Directed help desk operations across multiple offices, streamlining ticket management processes that increased resolution efficiency by 30% and improved customer satisfaction scores by 15%
• Implemented proactive monitoring and remote troubleshooting protocols that reduced incident response times by 50%, minimizing business disruption
• Provided expert guidance on data protection compliance and security best practices, reducing client risk exposure and supporting GDPR and HIPAA adherence
• Mentored junior technicians and coordinated cross-functional teams to deliver seamless IT support and infrastructure upgrades, fostering skill development and team productivity
IT Consultant ‐ Sr. System Administrator
06/2019 - 02/2022
Ahana Systems and Solutions Pvt Ltd, Bangalore (Multiple US Clients) , Bangalore
• Led IT operations and support for over 15 US-based clients, resolving 95% of server and user issues within SLA targets using ManageEngine ServiceDesk, enhancing client satisfaction and system reliability
• Developed and optimized monitoring frameworks with Site24x7, Zoho Remote Assist, and ManageEngine tools, improving system uptime by 12% and proactively preventing critical failures
• Administered and secured Windows, Linux, and VMware infrastructures across 100+ servers and workstations, reducing downtime by 20% through proactive maintenance and patch management
• Designed and implemented comprehensive backup and disaster recovery strategies using Acronis and Veeam, achieving 100% data integrity and reducing recovery time objectives by 30%
• Managed Microsoft 365 environments, resolving complex software and cloud service issues, which improved end-user productivity by 15%
• Conducted quarterly strategic IT reviews with clients, aligning technology roadmaps with business goals and identifying opportunities for cost savings and process improvements
• Executed multiple P2V and V2V migrations within Hyper-V, vCenter, and VMware ESXi environments, completing projects 25% faster than planned timelines
• Troubleshot and resolved advanced issues in Azure and AWS virtual machine instances, enhancing cloud infrastructure stability and reducing incident response times by 18%
Sr. System Administrator
07/2010 - 04/2019
Ahana Systems and Solutions Pvt Ltd, Bangalore (Client: OnlyLink Business Solutions Inc., USA) , Bangalore
• Served as Tech-Lead for the offsite team, overseeing technical operations and mentoring junior staff.
• Ensured high client satisfaction through effective use of MS-CRM/ConnectWise and regular online client engagements.
• Managed and resolved user requests and server issues efficiently using the ConnectWise ticketing system.
• Configured and administered monitoring tools such as Zenith and AdventNet Application Manager.
• Gained hands-on expertise in Backup Administration using Windows Backup, ShadowProtect, and DATTO with NAS boxes.
• Managed operational tasks and projects related to Exchange Server (2003/2010) and Office 365.
• Administered and maintained Anti-Virus Server solutions, including Vipre, McAfee, AVG, and Webroot.
• Provided remote server administration using technologies like HP-iLO, Dell DRAC, IBM-RSA, and KVM switches.
• Configured and managed Microsoft CRM systems to support business operations.
• Oversaw comprehensive infrastructure management, including physical servers and network devices such as SonicWALL, CyberOn, and Cisco.
• Ensured physical and virtual servers were built and maintained according to organizational standards and baselines (Dell, HP, IBM).
Desktop Engineer (Field Engineer)
10/2009 - 07/2010
HCL Infosystems, Trivandrum, Kerala, IN. , Trivandrum, Kerala, IN
• Handled onsite and offsite customer requests, providing technical support for hardware, OS, and network-related issues.
• Managed and resolved user application issues efficiently.
• Deployed and troubleshooted network devices and peripherals (switches, routers, printers) for small businesses and home environments.
• Demonstrated strong hardware and OS troubleshooting skills, with a proactive approach to learning new technologies.

EDUCATION

BCA

SKILLS

Technical Skills: Windows Server (2003-2022), Windows Client (7-11), Linux (Ubuntu, CentOS, Red Hat), Active Directory Domain Services, DNS, DHCP, Exchange Server, Group Policy Objects, Remote Desktop Services, Cisco Networking
Soft Skills: Problem Solving, Communication, Team Collaboration, Adaptability, Time Management, Customer Service
Tools: Veeam, Acronis, NinjaRMM, N-able (N-central), ConnectWise Automate, ConnectWise Manage, ManageEngine ServiceDesk, SolarWinds RMM, Microsoft 365, Azure, AWS, VMware ESXi, Hyper-V
Other: Windows and Linux Servers, Backup Solutions, Remote Monitoring and Management, Cybersecurity Basics, ITIL Fundamentals

CERTIFICATIONS

MCSA
MCITP

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