System Administrator

Dexcomm is hiring for an experienced, highly skilled System Administrator to work directly with our CTO managing cutting-edge hybrid infrastructure and enterprise-level Azure cloud services. With our established help desk team handling routine user support, you'll own network and system administration responsibilities, focusing on infrastructure management and strategic technology initiatives.Position Overview Ensure continuous operation of our mission-critical 24/7 contact center infrastructure, growing to achieve industry-leading uptime standards (>99.999%) while supporting client communications across North America. You'll manage hybrid infrastructure combining on-premises resources with extensive Azure cloud services.Location: In-office position at Dexcomm Headquarters— Carencro , Louisiana Key Responsibilities: Network & Infrastructure Management Maintain and optimize Fortinet platform configurations, infrastructure, and deployments Monitor and maintain network performance with exceptional reliability standards Implement and manage redundancy strategies for continuous service availability Azure Cloud Administration Manage Azure infrastructure: VMs, storage solutions, Express Route connectivity, Virtual Network/Local Network Gateways, load balancers, and Entra (Azure AD) Ensure seamless integration between on-premises and Azure cloud resources Database Administration Administer Microsoft SQL Server databases with Always On Availability Groups Ensure database high availability, disaster recovery, and performance optimization Perform maintenance with minimal-downtime strategies Voice Infrastructure & Systems Support Manage and troubleshoot SIP trunk configurations with Twilio and Telnyx Ensure voice quality and reliability for call center operations Handle escalated technical issues and provide advanced troubleshooting support to help desk team Collaborate with software vendors, plan software upgrades, and oversee Microsoft 365 administration Develop comprehensive documentation and implement monitoring/alerting systems Required Qualifications Technical Skills Minimum 3-5 years system/network administration in high-availability environments Strong expertise in FortiGate firewall management and Fortinet ecosystem Proven experience with Microsoft Azure cloud services (VMs, networking, Express Route, load balancing, high availability) Solid experience with Microsoft SQL Server administration, specifically Always On Availability Groups Working knowledge of SIP protocols and VoIP technologies (Twilio, Telnyx) Proficiency in Microsoft 365 administration and Windows Server environments including Failover Cluster Experience in 24/7 operational environments with critical uptime requirements Professional Skills Exceptional problem-solving abilities with rapid resolution focus Ability to work under pressure and manage critical incidents effectively Strong communication skills for vendor management and cross-team collaboration Self-motivated with ability to work independently Detail-oriented with excellent documentation practices Preferred Qualifications Asterisk server configuration and management WCTP (Wireless Communications Transfer Protocol) knowledge SMS gateway integration experience 3CX phone system administration Wireshark proficiency for SIP troubleshooting and network analysis Critical Requirements On-call availability: Participate in on-call rotation for 24/7 support Rapid response capability: 15-minute target response time for critical incidents Flexible scheduling: Occasional off-hours maintenance work required Reliability mindset: Understanding that maintaining >99.999% uptime requires exceptional attention to detail and proactive monitoring