Network Engineer with 4 years of experience in network and system administration. Expertise in optimizing network performance,

managing firewall configurations, and providing top-tier technical support. Proven ability to enhance security and streamline operations in

diverse environment

Network/Cloud Support Engineer with 4+ years of experience in 24/7 NOC operations, SD-WAN troubleshooting, and incident response. Experienced with VeloCloud, FortiGate, PRTG, LogicMonitor, and IPsec VPN. Cisco CCNA certified, CCNP in progress. I help businesses maintain network uptime, respond to outages fast, and keep SLA commitments. Available for remote or hybrid full-time roles.

Versatile IT Infrastructure Engineer with 5+ years of experience in both enterprise L2/L3 support and MSP client environments. Skilled in incident resolution, SLA compliance, and escalation handling. Proven ability to reduce escalations by 30%, maintain 95% SLA adherence, and deliver seamless support across diverse infrastructures. Strong background in virtualization, networking, ITSM tools, and client communication.

IT Support and Systems Administration professional with 10+ years of experience supporting users, infrastructure, networks, servers, and business applications.

My background spans IT support, network administration, systems administration, and IT leadership, including responsibility for 200+ users across multiple locations and coordination of a 5-person IT team.

My hands-on experience includes Windows Server, Active Directory, DNS, DHCP, TCP/IP networking, LAN/WAN, VPN, virtualization, Linux/CentOS, Apache, MySQL, GCP-based systems, ERP environments, remote support, file services, backup, and IT security controls.

I approach technical problems through structured troubleshooting: identifying the failure boundary, gathering evidence, isolating the likely cause, and validating the fix. I am comfortable supporting both end users and the underlying infrastructure they depend on.

I am currently continuing my hands-on technical development through a virtualized small-business infrastructure lab covering Windows Server, Active Directory, DNS, DHCP, Group Policy, networking, security, file services, backup, Hyper-V, and real-world troubleshooting scenarios.

Currently open to IT Support, Technical Support, Systems Administration, Network Support, Help Desk, and related IT roles — including remote and US night-shift opportunities.

IT professional with 6 years of experience in technical support, system administration, and network troubleshooting. Skilled in Active Directory, Microsoft 365, networking, monitoring tools, and remote support. Reliable, detail-oriented, and focused on keeping systems secure, stable, and running smoothly.

Software Installation<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Quality Assurance<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Remote Assistant<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Reimage / Reformat<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Workspace One Intelligent Hub Remote System<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Manage Engine Desktop Central Remote System<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Service Now Ticketing System<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Service Desk Plus Ticketing System<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Technical support<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Communication skills<svg role="img" class="icl-Icon icl-Icon--blue icl-Icon--md" aria-label="Edit" focusable="false" viewBox="0 0 24 24"></svg><svg viewBox="0 0 24 24" fill="none" aria-label="Delete"></svg>Active Directory

I am a detail-oriented Lead Generation Specialist with 10 years of experience in

delivering high-quality companies and leads by utilizing advanced tools like Sales

Navigator and multiple chrome extensions for email discovery. Scraping Companies / data's from Google.

Proficient in data cleansing and enrichment, with a keen eye for aligning leads with the Ideal

Customer Profile. Seeking to leverage my expertise in data-driven lead generation

and customer profiling to drive targeted sales growth and contribute to the success

of the company.

IT Support and Systems Operations professional with 8+ years of experience supporting enterprise and remote users across international organizations.

My technical background includes Microsoft 365, Active Directory/Microsoft Entra ID, Windows and macOS support, Microsoft Intune/MDM, PowerShell, networking, VPN troubleshooting, Citrix, VMware support, identity and access management, and IT service management.

I have worked with ServiceNow, Freshservice, FreshDesk, Atera, Google Workspace, Okta, SentinelOne, Cisco AnyConnect, Cisco Meraki, CUCM, Jabber, and Webex.

I also work with AI and business automation through VIEQAN, where I build and troubleshoot AI-assisted workflows, Make automations, APIs, webhooks, Google Workspace integrations, CRM workflows, and connected business systems.

I am comfortable owning technical incidents from initial investigation through resolution or escalation, documenting troubleshooting clearly, communicating with users, and working independently in a remote environment.

I am particularly interested in IT Support Engineer, L2/L3 Support, Systems Support, Microsoft 365, Application Support, SaaS Support, IT Operations, and AI/Automation Support roles.

Hi, I’m David Adrian Rivera, an experienced IT Specialist with over 12 years in technical support, system administration, and network setup. I’m skilled in managing Linux servers, setting up VPNs and LAN/WAN, and supporting devices like Mikrotik, Ubiquiti, Fortigate, and Cisco. I also have experience with Elastix VoIP systems, CCTV installation, and basic web development using HTML, CSS, and JavaScript.

I work well both remotely and onsite, and I’m passionate about providing fast, reliable, and secure IT solutions. I’m looking for a remote job where I can use my skills to help businesses run smoothly and efficiently.

I am easy to worked with and can work under pressure