Shawn Castillo

IT/OT System Administrator

Swisher Electric Cooperative

Tulia

09.2018 - Current

Monitor and maintain network connectivity to various endpoints, including employee PCs, company phones, servers, and peripheral office equipment.
Assist third-party software companies with the implementation and operation of various programs, e.g., anti-virus software, website extensions, and program add-ons.
Acknowledge and inspect notifications from various programs, including anti-virus alerts, network issues, Windows updates, etc.
Installation of new PCs, PC peripheral equipment, new software, and server programs needed to maintain/update the network at headquarters.
Analyzed system logs to identify suspicious activities or anomalies.
Collaborated with other teams to develop solutions for various projects.
Conducted research on emerging technologies in order to identify opportunities for improvement.
Created user accounts and managed access rights for users.
Troubleshot application errors and provided technical support to end-users.
Monitored system performance to ensure optimal operations and identified potential issues.
Provided guidance on best practices related to system administration procedures.
Maintained inventory of hardware assets including servers, laptops, desktops.
Performed regular backups of critical data and documents.
Installed, tested and evaluated new systems, applications and patches.
Configured and maintained system hardware, software and network components.
Coordinated with third-party vendors for resolution of incidents or provisioning services.
Deployed operating systems upgrades and security patching in accordance with IT policies.
Installed, configured, and updated software and hardware components, ensuring system integrity and compatibility.
Provided technical support and training to users, improving system understanding and reducing support requests.
Coordinated with vendors and support teams to resolve technical issues and procure necessary equipment.
Set up, optimized, and managed network equipment.
Stayed current with emerging technologies and trends, regularly upgrading systems to maintain competitive advantage.
Participated in the planning and execution of IT infrastructure projects, meeting deadlines and budget requirements.
Monitored system performance, identifying and resolving bottlenecks to maintain optimal functionality.
Set up user accounts, permissions and passwords and defined network policies and procedures.
Configured and supported virtual environments using VMware and Hyper-V, optimizing resource utilization.
Oversaw storage management, data migration, backups and drive replacements.
Facilitated the migration of servers and applications to cloud platforms, improving scalability and cost-effectiveness.
Administered user accounts, permissions, and access controls, enhancing security and compliance.
Managed email routing and internal message protocols to support reliable delivery of communications.
Ensured compliance with IT policies and regulatory requirements, conducting regular audits and assessments.
Created configuration guides for deploying new desktops, laptops and mobile devices.
Provided effective resolutions to issues and escalated problems with knowledgeable support and quality service.
Implemented and managed VPNs, enabling secure remote access for employees.
Increased system security and performance with proactive changes.
Submitted recommendations regarding infrastructure overhauls.
Analyzed equipment performance records to determine need for repair or replacement.
Designed, configured and tested computer hardware and operating system software.
Planned, tested and supported high-availability infrastructures.
Installed security software to protect networks.
Diagnosed, troubleshot and resolved hardware and system problems.
Promoted continuous improvement for IT governance processes.
Kept flexible schedule and resolved after-hours and weekend emergencies quickly and accurately.
Coordinated with vendors and company personnel to facilitate purchases.