{"id":2566061,"url":"https://alion.io/job/i2xisys-sr-voip-engineer","title":"Sr. VoIP Engineer","company":{"id":4423426,"name":"I2Xisys","domain":"i2xisys.com","url":"https://alion.io/company/i2xisys","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"iCIMS","truth_index":null},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Littleton, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":105000,"max_usd":203000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1602},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"IAM","optional":false}],"status":"live","first_seen_at":"2026-10-14T21:57:30Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-15T21:10:33Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Minimum Clearance Required\nTS/SCIResponsibilities\nWe are seeking aSr. VoIP Engineer to support ongoing activities for a customer in Quantico, Virginia. This position will be onsite and will require an active *Top Secret Clearance with SCI eligibility.\nPerforms tests, provisions, operations and emergency responses for voice network operations\nDesigns, configures, and installs VoIP hardware/software replacements and upgrades\nDevelops and maintains all VoIP documentation (drawings, cut sheets, configurations, and deployment plans)\nIdentifies and diagnoses problems and factors affecting voice services\nProvides day-to-day subject matter expert support for RKB tenant agencies\nTroubleshoots voice related issues and outages, which may occur during non-core hours\nWorks with vendors in support of the ITCSU\nPerforms preventative maintenance services on all devices within the VoIP area of responsibility\nMaintains a current understanding of emerging technologies and trends in voice and video services\nPerforms other tasks as required by OSC and the Government contracting office\nQualifications\nMust have and maintain a TOP SECRET clearance and must be eligible for a TS/SCI\nHigh School diploma or equivalent\nFive (5) or more years of experience designing, building, and/or maintaining communications systems with a minimum of three (3) years of experience with CISCO Unified Communications Manager (CUCM) Version 12+ or newer\nCisco Certified Network Professional (CCNP) Collaboration or successful completion of the CLCOR exam\nPrior experience with Cisco Unity, Cisco Presences, Cisco Emergency Responder\nKnowledge of Cisco UCCX\nPrior experience with dynamic and static IPv4 routing and integrating with an external SIP provider\nProficient with SIP, SCCP, MGCP, DSN, PSTN, and H.323 systems and devices\nMust be DoD 8570 certified at the IAT-II / IAM-II level. Please refer to the website: https://public.cyber.mil/cw/cwmp/dod-approved-8570-baseline-certifications/\nDesired Experience and Skills\nBachelor’s degree\nEssential Requirements:\nUS Citizenship is required.\nPlease note that this role represents a direct-hire placement for a privately held company within our group of businesses.\nPhysical Demands:\nThe physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodation.\nWhile performing the duties of this job, the employee will regularly sit, walk, stand and climb stairs and steps. May require walking long distance from parking to work station. Occasionally, movement that requires twisting at the neck and/or trunk more than the average person, squatting/ stooping/kneeling, reaching above the head, and forward motion will be required. The employee will continuously be required to repeat the same hand, arm, or finger motion many times. Manual and finger dexterity are essential to this position. Specific vision abilities required by this job include close, distance, depth perception and telling differences among colors. The employee must be able to communicate through speech with clients and public. Hearing requirements include conversation in both quiet and noisy environments. Lifting may require floor to waist, waist to shoulder, or shoulder to overhead movement of up to 20 pounds. 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