Job Description

ManTech seeks a motivated, career- and customer-oriented Voice Over Internet Protocol (VOIP) Technician to join our team in Annapolis Junction, MD.In this role, you will serve as the VOIP SME, supporting Cisco Unified Call Managers across a global footprint and managing POTS lines, including e911 services in support of the Government customer.Responsibilities include, but are not limited to:Provide broad telephony support, including administrator-level configurations and in-depth technical solutions over secure and nonsecure networksServe as the SME for engineers, surveyors, installers, and project managers to develop and implement end-to-end solutions across various vendor productsManage multiple communication projects to support critical response efforts and streamline services for analog, digital, and video requirementsAdminister voicemail servers, call managers, and emergency responders involving T1, fiber, Ethernet, multiplexing, copper wrap, and cellular servicingConfigure and troubleshoot multi-vendor hardware and software systems to support complex defense operationsEngage in the escalation process and provide timely status updates to agency management and internal stakeholdersSupport clients across multi-level service platforms by executing in-depth resolutions for real-time incidents and service requestsProvide support for TCP/IP network protocols, including TCP, Session Initiation Protocol (SIP), Session Description Protocol (SDP), and VoIP codecsIntegrate VOIP systems through planning, design, installation, maintenance, and lifecycle coordinationMonitor, tune, and support telephone systems and network infrastructure to ensure stability, reliability, and efficiencyIdentify and assess technical requirements, including re-architecting network segments to support growth and new technologiesSupport lien mitigation efforts to maintain a compliant System Security Plan and network security postureCommunicate effectively with diverse technical and non-technical audiences, including customers, partners, and staffTravel approximately 10-20% in support of service requirements; opportunities may include CONUS and OCONUS travel for AVMM support (non-hostile areas only)Minimum Qualifications:Bachelor's degree and 6 years of relevant experience, or 10 years total experience in lieu of a degreeExperience in IT service management, including incident, problem, change, service level, and knowledge managementIATT Level 2 certification (e.g., Security+ CE) required; candidates with Level 1 (Net+, A+) may start with expectation to attain Level 2 within 4 monthsTechnical management experience, including planning and implementing IT equipment replacementStrong presentation skills with the ability to convey technical and business concepts to diverse audiencesExperience resolving complex customer issues and interacting across personnel levelsDemonstrated success managing technical projects and satisfying customer needsPreferred Qualifications:Experience with customer ticketing systems such as ServiceNowExperience supporting network devices (including servers) for AVMM/IPTV/Streaming servicesIATT Level 2 certification, such as Security+ CEPMP and ITIL Foundations V3 certificationsExperience supporting large-scale enterprise IT contractsClearance Requirements:Must have a current/active TS/SCI with PolygraphPhysical Requirements:Must be able to handle IT equipment of a reasonable nature without assistanceMove about inside the office to collaborate with team members and use standard office equipmentFrequently communicates virtually and in person, including delivering presentations. Must be able to exchange accurate information in these situations.

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