Jr. Systems Administrator/Voice Engineer

**About GrayMatter Networks** GrayMatter Networks is a leading innovator in hospitality communication systems, specializing in advanced VoIP and hotel technology solutions. Our flagship platform, BrainBox, delivers powerful, reliable, and flexible communication systems designed specifically for the hospitality industry. We are passionate about providing technology that exceeds expectations while upholding our core values of ownership, integrity, loyalty, and exceptional customer service. We are seeking motivated, tech-savvy individuals who thrive in fast-paced environments and enjoy solving problems while helping customers succeed. **Position Overview** As a Jr. Systems Administrator / Voice Engineer, you will be responsible for supporting, monitoring, maintaining, and troubleshooting hospitality VoIP and infrastructure systems across customer environments. This role focuses on supporting VoIP, SIP, Linux, networking, and FreePBX-based systems while assisting internal teams and customers with technical issues, escalations, deployments, and system maintenance. Daily responsibilities include troubleshooting voice and network-related issues, monitoring infrastructure health, performing updates and maintenance, and maintaining accurate technical documentation. The ideal candidate is technically driven, detail-oriented, and comfortable working in a fast-paced remote support environment while collaborating with both internal teams and customer IT staff. **Key Responsibilities** **Voice & Infrastructure Management** - Configure, maintain, and support VoIP and PBX systems in hospitality environments - Assist with deployment, provisioning, and ongoing maintenance of customer systems - Monitor voice services, infrastructure alarms, system health, and network performance - Perform routine maintenance, OS updates, patches, and system checks on deployed systems **Support & Troubleshooting** - Troubleshoot SIP, VoIP, networking, and infrastructure-related issues - Support internal Tier 1 and Tier 2 teams with escalated technical issues - Analyze logs, packet captures, and monitoring tools to identify and resolve issues - Utilize tools such as Wireshark, VoIP Monitor, and Linux utilities for troubleshooting **Collaboration & Customer Engagement** - Work closely with hotel IT teams, vendors, and internal staff to implement and support solutions - Communicate technical information clearly to both technical and non-technical stakeholders - Participate in remote troubleshooting sessions and technical meetings - Maintain professionalism during customer interactions and support escalations **Documentation & Process Development** - Create and maintain technical documentation related to deployments, configurations, and troubleshooting procedures - Develop Wiki-based knowledge base articles and technical standards - Assist with improving operational procedures and technical workflows **Required Qualifications** - Strong English communication skills — both written and verbal Ability to clearly explain technical concepts in a concise and professional manner - Prior experience working with VoIP, SIP, or PBX technologies - Strong understanding of SIP and telephony systems including PBXs, call routing, and voice infrastructure - Experience troubleshooting voice and networking issues using tools such as Wireshark and VoIP Monitor - Strong technical aptitude in Linux systems and command-line environments - Familiarity with FreePBX environments and VoIP system administration - Understanding of networking fundamentals including TCP/IP, VLANs, routing, switching, NAT, and firewall concepts - Strong understanding of the OSI (Open Systems Interconnection) model and its practical application in troubleshooting and network design - Strong analytical and problem-solving skills with excellent attention to detail - Ability to work independently while remaining highly collaborative within a remote team environment - Ability to manage priorities and adapt in a fast-pa…