Junior Systems Administrator – Voice Engineer

FGC+

Jr. Systems Administrator/Voice Engineer at GrayMatter Networks supporting hospitality communication systems.

Posted 7/7/2026full-timeRemote • 🇺🇸 United StatesJuniorWebsite

Tech Stack

Tools & technologies

LinuxPythonSwitchingTCP/IPVoIP

About the role

Key responsibilities & impact

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
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
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
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

Requirements

What you’ll need

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-paced operational environment
Professionalism, accountability, integrity, and strong ownership mentality
A Plus to Have Degree in Computer Science, Information Technology, Telecommunications, or a related field is desirable but not mandatory
Experience with hospitality technology environments or hotel IT systems
Familiarity with scripting or automation tools such as Bash or Python
Experience with virtualization platforms, VPN technologies, and monitoring systems
Familiarity with Linux server administration and system hardening
Experience working with ticketing systems and remote support platforms
Network+ and/or Cisco Systems CCNA certifications are highly desirable
Experience with FreePBX software applications and Sangoma-based solutions.

Benefits

Comp & perks

Candidates are expected to maintain a professional remote working environment and workstation suitable for customer-facing technical support operations.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

VoIP TechnologiesPBX SystemsSIP ProtocolLinux SystemsNetworking ConceptsTroubleshootingPacket AnalysisSystem MaintenanceVirtualization PlatformsAutomation Scripting

Soft Skills

Strong Communication SkillsAnalytical Problem-SolvingCollaborationProfessionalismAdaptability

Certifications

Network+Cisco Systems CCNA