Senior Telephony Analyst

Maximus • Annapolis Junction, MD

173d • $90,000 - $130,000

About The Position

Maximus is seeking a Senior Telephony Analyst to manage and support internal-use telephony systems for our Homeland Security customer. This role will provide technical leadership for the design, configuration, maintenance, and troubleshooting of enterprise VoIP and telephony infrastructure, with responsibilities that span operating systems, networking, security, and application support. This position is on-site five days a week and requires an active secret security clearance.

Requirements

• Active Secret security clearance required.
• Candidates must be U.S. citizens with no dual citizenship.
• 12+ years of experience supporting VoIP or telephony systems in a systems administrator or engineer role.
• Experience with VoIP protocols and technologies, including SIP, RTP, SRTP, and Avaya platforms (e.g., Communication Manager, CMS, ACR, WFO, IX Messaging, System Manager).
• Experience in Unix/Linux environments including patching, volume management, LDAP integration, and log analysis.
• Experience with Windows Server environments, including Active Directory, Group Policy, DNS, DFS, and DHCP.
• Networking experience includes IPv4, ports/protocols, IP routing fundamentals, and monitoring.
• Familiarity with remediation and validation of security vulnerabilities.
• Proficiency with managing and monitoring infrastructure, including telephony peripherals and server systems.
• Knowledge of client/server certificates and authentication mechanisms.

Nice To Haves

• Scripting experience (PowerShell, Shell)
• VMWare technologies (vCenter, ESXi)
• Experience with Microsoft SQL Server and PostgreSQL databases
• Exposure to call center solutions such as workforce/schedule management tools and contact recording systems.

Responsibilities

• Manage and support enterprise VoIP and telephony systems across these programs, including hardware, software, peripherals, and call applications such as WFO/WFM, CMS, and call recording platforms.
• Operate, monitor, and maintain enterprise infrastructure, including web servers (e.g., IIS, Apache Tomcat), application servers, and telecom hardware (e.g., Dell PowerEdge servers, Avaya J Series phones).
• Install, configure, troubleshoot, and resolve issues related to VoIP systems, Unix/Linux/Windows servers, network connectivity, and system integrations with Active Directory, DNS, DHCP, and LDAP.
• Collaborate with cross-functional teams to implement telephony solutions that ensure high availability, call quality, and compliance with security and performance standards.
• Other tasks as assigned.

Benefits

• Health insurance coverage
• Life and disability insurance
• Retirement savings plan
• Paid holidays
• Paid time off

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Industry: Professional, Scientific, and Technical Services