Telephony Analyst

RELI GROUP INC•Annapolis Junction, MD

52d•$65,000 - $95,000•Onsite

About The Position

RELI Group is seeking a 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.

Requirements

Active Secret security clearance.
U.S. Citizenship (no dual citizenship permitted).
Minimum of 7 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 including 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.
Willingness and ability to work onsite and participate in a rotational on-call schedule to support 24x7x365 operations.

Nice To Haves

Scripting experience (PowerShell, Shell)
VMWare technologies (vCenter, ESXi)
Experience with Microsoft SQL Server and PostgreSQL database

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.

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