Senior IT Infrastructure Administrator
Resume:
Rahul Dinesh Nimmala
Email: *******************@*****.*** Mobile: 224-***-****
PROFESSIONAL SUMMARY
6+ years of experience as a Systems Administrator specializing in IT infrastructure management, cloud services, and network security in fast-paced MSP environments. Proven ability to deliver reliable and scalable systems across diverse technologies.
Strong expertise in administering Microsoft 365, Windows Server, Active Directory, and Group Policy, ensuring optimal performance and security for client and internal operations.
Proficient in managing Linux servers including Ubuntu, CentOS, and RHEL, with hands-on experience in troubleshooting and resolving complex system and network issues.
Skilled in supporting Azure and AWS cloud infrastructure, contributing to seamless service delivery and operational excellence in cloud environments.
Experienced in deploying and supporting virtualization technologies such as VMware vSphere/ESXi, enhancing resource utilization and system reliability.
Adept at configuring and supporting network infrastructure, including firewalls, switches, and access points, to maintain secure and efficient connectivity.
Strong background in scripting with PowerShell, Bash, and Python, facilitating automation and improving operational efficiency in IT processes.
SKILLS
Microsoft Technologies: Microsoft 365, Windows Server, Active Directory, Group Policy, PowerShell, Microsoft Exchange, Microsoft Teams, SharePoint
Linux Administration: Ubuntu, CentOS, RHEL, Shell Scripting, Bash, Linux Security, System Monitoring, Package Management
Cloud Platforms: Azure, AWS, Azure Functions, EC2, S3, Lambda, CloudFormation, Cloud Security
Networking: Firewalls, Switches, Access Points, VLANs, TCP/IP, DNS, DHCP, Network Security
Virtualization: VMware vSphere, VMware ESXi, Hyper-V, Virtual Machine Management, Snapshot Management, Resource Allocation, vCenter, vMotion
Troubleshooting: Level 2 Support, Level 3 Support, Incident Resolution, Root Cause Analysis, Performance Tuning, System Diagnostics, Log Analysis, Service Monitoring
Automation: Scripting, Automation Tools, Configuration Management, CI/CD Pipelines, Ansible, Terraform, System Integration, Process Improvement
Security: IT Security Principles, Risk Management, Compliance Standards, Security Audits, Vulnerability Assessment, Incident Response, Data Protection, Firewall Configuration
Professional Skills: Team Collaboration, Client Relations, Stakeholder Management, Time Management, Adaptability, Conflict Resolution, Mentoring, Presentation Skills
Soft Skills: Problem-Solving, Critical Thinking, Communication, Leadership, Analytical Skills, Attention to Detail, Initiative, Continuous Learning
WORK EXPERIENCE
Wells Fargo - Charlotte, NC
Senior IT System Administrator - Oct 2023 to Present
Administer Microsoft 365 and Windows Server environments, ensuring optimal performance and security across client infrastructures and internal operations.
Manage Linux servers, including Ubuntu and CentOS, enhancing system reliability and scalability for diverse applications.
Support Azure and Amazon Web Services (AWS) cloud infrastructure, implementing best practices for cloud security and resource management.
Troubleshoot and resolve escalated Level 2-3 system and network issues, utilizing analytical skills to minimize downtime and improve service delivery.
Monitor RMM/NMS alerts, consistently meeting Service Level Agreement (SLA) requirements to ensure high availability of services.
Deploy and support virtualization technologies using VMware vSphere/ESXi, optimizing resource allocation and system performance.
Configure and support network infrastructure, including firewalls, switches, and access points (APs), to maintain robust security protocols.
Assist with IT projects, automation, and documentation, contributing to continuous improvement initiatives and enhancing operational efficiency.
Collaborate with cross-functional teams to drive infrastructure projects, leveraging strong communication and teamwork skills.
Mentor junior staff, fostering a culture of knowledge sharing and professional growth within the IT department.
Technologies Used: Microsoft 365, Windows Server, Active Directory, Group Policy, Linux, Azure, AWS, VMware vSphere, RMM, NMS, networking, firewalls, switches, APs, PowerShell, Bash, Python
Target - Minneapolis, MN
System Administrator - Dec 2021 to Jul 2023
Administered Microsoft 365 and Windows Server environments, enhancing system performance and security for over 10,000 users.
Managed Linux servers, including RHEL, ensuring high availability and reliability for critical applications and services.
Supported Azure cloud infrastructure, implementing security measures and optimizing resource utilization for cost efficiency.
Troubleshot and resolved Level 2-3 system and network issues, applying critical thinking to enhance service delivery and client satisfaction.
Monitored RMM/NMS alerts, achieving a 99% SLA compliance rate through proactive issue resolution and system maintenance.
Deployed and supported virtualization solutions using VMware vSphere, improving operational efficiency and reducing hardware costs.
Configured and supported network infrastructure, including firewalls and switches, to maintain secure and efficient communication channels.
Assisted with IT projects and automation initiatives, contributing to process improvements and documentation efforts.
Collaborated with IT teams to enhance security initiatives, leveraging strong problem-solving skills to address vulnerabilities.
Provided training and support to end-users, promoting effective use of technology and enhancing overall productivity.
Technologies Used: Microsoft 365, Windows Server, Linux, Azure, VMware vSphere, RMM, NMS, networking, firewalls, switches, PowerShell, Bash, Python
Dell Technologies - RoundRock, TX
IT Support Technician - Jan 2020 to Nov 2021
Provided technical support for Microsoft 365 and Windows environments, resolving issues for over 500 users and ensuring high customer satisfaction.
Assisted in managing Linux servers, including Ubuntu, contributing to system stability and performance enhancements.
Supported cloud infrastructure initiatives, gaining experience with Azure and AWS, and implementing best practices for security and efficiency.
Troubleshot and resolved Level 1-2 system and network issues, utilizing strong analytical skills to identify root causes and implement solutions.
Monitored system alerts and performance metrics, ensuring compliance with established SLAs and improving service delivery.
Assisted with virtualization projects using VMware, contributing to resource optimization and system performance improvements.
Configured network infrastructure components, including switches and firewalls, to maintain secure and efficient operations.
Collaborated with IT teams on documentation and automation efforts, enhancing operational workflows and efficiency.
Participated in training sessions to improve technical skills and knowledge of emerging technologies, fostering a culture of continuous learning.
Engaged with clients to provide exceptional support, demonstrating strong communication and interpersonal skills.
Technologies Used: Microsoft 365, Windows, Linux, Azure, AWS, VMware, networking, firewalls, switches, PowerShell, Bash, Python
CERTIFICATIONS
Azure Administrator Associate (AZ-104)
CompTIA Security+, Network+, and A+
VMware Certified Professional (VCP-DCV)
ITIL v4 Foundation
EDUCATION
Masters in Computer Science Concordia University Wisconsin 4.0 GPA
Bachelors in Electronics and Communication Engineering JNTUH 85%
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