{"id":2073063,"url":"https://alion.io/job/gtt-tier-2-voice-engineer","title":"Tier 2 Voice engineer","company":{"id":4434,"name":"GTT","domain":"gtt.net","url":"https://alion.io/company/gtt","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":33,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Incident Management","optional":false},{"name":"ITIL","optional":false},{"name":"Linux","optional":false},{"name":"Service Desk","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Unix","optional":false},{"name":"Wireshark","optional":false}],"status":"live","first_seen_at":"2026-10-08T07:45:49Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-12T04:57:18Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"JOB Designation: Tier 2 Voice engineer/ Network Technician\nShift time Two day's day shift 8 AM to 8 PM , Two day's Night shift 8 PM to 8 AM Followed by Four days leave (Shift hours -12 hours)\nSkills: SIP protocol, VOIP, Broadsoft, Hosted service, Linux/Unix\nExcellent understanding of ISUP, Q.931 signalling protocols and call flows.\nDeep knowledge of SIP and H.323 (up to single message level)\nIP knowledge to at least CCN level, good Transmission layer understanding\nGeneral knowledge of telecom industry and standards.\nStrong background of working within Voice Operations environment of a Telco or large ISP.\nExcellent understanding of VOIP principles and of the components of a VOIP network must.\nFluent English language skills are essential .\nKnowledge on Broadsoft, Sonus/Ribbon, Genbands, Polycom IP Phones and Cisco IP phones. Job Description Summary Take part in a rotating 24*7*365 shift rotational to provide operational coverage\nTrouble ticket incident management\nProactive Network Monitoring and troubleshooting\nHandling customer escalations ensuring customers are updated on technical queries via email, incident management systems and phones\nLiaising with other NOC Engineers and Network Operations Centers in other countries\nMaintain Operational standards in line with customer SLA’s. i.e. fast response times to customers from incident start time up to incident restoration Internal Job Description Role Summary: The Network Management Centre (NMC) manages and maintains GTT’s pan-European , US and Canada network 24x7. As a highly intelligent and efficient break/fix organisation, with a strong focus on consistency and process, it works with other parts of GTT to deliver a world-class customer experience. Internal Departments they will interact with: Service Desk, TSS, Incident and Problem Management Main Responsibilities: Provide proactive fault resolution support for Voice/ VoIP cases or when the Service Desk/ NOC front line team is unable to resolve a customer and/or network fault or where a fault has been escalated according to SLA requirements.\nUse network tools to monitor core network and customer services.\nProactively initiate incident management process.\nPerform diagnostics on all Voice network and customer faults.\nGenerate action plans to troubleshoot all Voice network and customer faults.\nTrack the incident management of proactive and reactive issues through the Trouble Ticket system.\nManagement and Technical escalation of Trouble Tickets in line with process.\nCoordinate NOC activities with local Field Operations and Vendor/Supplier representatives to diagnose and fix faults across a pan-European US/Canada network\nLiaise with customer representatives to progress fault resolution.\nSupport local Field operations with maintenance activities.\nWorks in the NOC on a 24x7 shift rota.\nReporting security incidents to the appropriate operations functions on detection.\nComply to GTT Security Management controls, security policies and report security incidents to line manager\nMonitoring fraudulent activity and alerts. Ideal Candidate Profile:\nProfessional, structured and proactive approach.\nSelf-motivated with excellent interpersonal and communication skills\nPositive and approachable team player\nCalm and productive under pressure\nDetail-oriented and organized approach to work\nEfficient and productive with good time management skills\nAble to resolve problems quickly and effectively\nSupporting carrier level voice service such as trunking and hosted phone services\nSupporting routers, switches and phone platforms\nSupporting Netsapiens hosted platform, Broadsoft or similar platforms\nGood Knowledge with call routing\nGood Knowledge with SIP call flows and troubleshooting\nFamiliarity with packet capture analysis tools such Wireshark Qualification and Certification: B. 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