Kostas Alexopoulos Email and Phone Number
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Kostas Alexopoulos personal email
More than 10 years experience at telecom industry as a Verification Engineer & trouble shooter in software development projects for Mobile telephony applications of Ericsson.Specialties: - Ericsson nodes: MSC-S, (G)MSC/VLR, MSC-S Blade Cluster, HLR, MGW, OSS- RC, APG43- Protocols:BSSAP, RANAP, MAP, ISUP, BICC, INAP, SCCP, ATM, SS7, TCP\IP ,SIP ,SIP-I- Tools: SEA environment, STN tools, WINFIOL, MGTS, MHWEB, TITANSIM (load testing),WIRESHARK.- Integration and Verification Testing,Acceptance testing, - Data Transcript in AXE nodes( B number,RC analysis).
Aspire Technology
View- Website:
- aspiretechnology.com
- Employees:
- 113
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Volte/Ims Core Network EngineerAspire Technology Jun 2021 - Present• Support engineer for the implementation of Next Generation Voice (NGV) services such as Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi) in Three Ireland network.• Deployment and operation of Ericsson vIMS nodes (MTAS,CSCF,IPWORKS,SBG,BGF,MRF).• Acceptance testing and E2E service testing for the new NGV solution.• VoLTE S8HR roaming testing execution in the Test Lab.• Tracing and Troubleshooting of complex signalling issues.• Analysis and evaluation of performance indicators.• Provide network configuration modifications (design,execution) for the optimization of the network.
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Professional Services Core Network EngineerAspire Technology Limited Apr 2018 - May 2021County Dublin, Ireland• Working as a support engineer to Caribbean mobile network operator Digicel covering several markets across the Caribbean and Central America for the stabilization and optimization of their networks. Resolving incidents in the CS Core network (MSC, MGW, HLR, HSS) based primarily in Ericsson equipment including O&M, KPI analysis, detailed call tracing and troubleshooting, deployment of new features and implementation of operator’s requirements.
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Cs Core Network Engineer - Pids Trouble ShooterIntracom Telecom Sep 2015 - Mar 2018• Working as PIDS troubleshooter for the Ericsson MSC (Resolving network operators issues/defects, Handling CSRs, Support on SW upgrades). • 2 months working in Ericsson China (Shanghai) for the virtualized MSC-S 17A solution (VNF). Release System Test, Robustness Test in the virtualized APZ 212 70.• 3 months working on-site in O2 (Telefónica UK) for the acceptance testing of MSS16A (MSC and MGW). -
Mss Integration And Verification EngineerIntracom Telecom Jul 2013 - Aug 2015Integration & Verification Testing for MSC R14B and R15A LSV Hardening network.
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Verificaton And Deployment EngineerIntracom Telecom Nov 2014 - Feb 2015• Verification engineer in 2G Call Re-establishment feature for Vodafone Egypt.• E2E verification activities for Call Re-establishment at real network (lab) in Ericsson Aachen.• On-site support for deployment of the feature in Vodafone Egypt on behalf of Ericsson Egypt. Troubleshooting on SW faults during and after the deployment.
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System Test EngineerEricsson Aug 2014 - Oct 2014Jorvas,FinlandIntegration and verification testing for MSS 15A in RVC LMF through Intracom telecom. -
Mss Integration And Verification EngineerEricsson Sep 2012 - Jun 2013Paggani Area,Italy• Integration & Verification Testing for MSC R14A LSV Hardening network.• Data Transcript preparation, System Test, Robustness Test, Acceptance Test.
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Mss Integration And Verification EngineerEricsson Jun 2012 - Aug 2012Split,CroatiaIntegration & Verification Testing for MSC R13A LSV Hardening network.
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Fault Handling EngineerIntracom Telecom Jul 2011 - May 2012Patras,GreeceTroubleshooting/debugging on Trouble Reports from Ericsson customers (network operators) and I&V.
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Verification EngineerIntracom Telecom Sep 2008 - Jun 2011Patras• Verification Engineer at Intracom Telecom.• Working in Ericsson Croatia (Zagreb) for 2 months as Troubleshooter and Integration Tester for MSC Blade Cluster phase 2 (MSC R14.1).
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Integration & Verification EngineerEricsson Mar 2008 - Aug 2008Madrid Area, SpainIntegration & Verification Testing for HLR R13.0.
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Verification Unit Function TesterIntracom Telecom Mar 2005 - Feb 2008PatrasTest cases preparation and execution,test design,test documents,test environment setup.
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Maintenance EngineerIntracom Telecom Apr 2004 - Feb 2005• Handling of Trouble Reportrs coming from Ericsson customers.• Providing Approved Corrections (ASA) and emergency corrections.• Fault reproduction and verification on simulated environment (SEA).
Kostas Alexopoulos Skills
Kostas Alexopoulos Education Details
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Electrical And Computer Engineering -
Master Of Business Administration - Mba
Frequently Asked Questions about Kostas Alexopoulos
What company does Kostas Alexopoulos work for?
Kostas Alexopoulos works for Aspire Technology
What is Kostas Alexopoulos's role at the current company?
Kostas Alexopoulos's current role is VoLTE/IMS Core Network Engineer.
What is Kostas Alexopoulos's email address?
Kostas Alexopoulos's email address is ko****@****ogy.com
What schools did Kostas Alexopoulos attend?
Kostas Alexopoulos attended Aristotle University Of Thessaloniki (Auth), Hellenic Open University.
What skills is Kostas Alexopoulos known for?
Kostas Alexopoulos has skills like Ss7, Gsm, Telecommunications, Hlr, Umts, 3g, Mss, Isup, Axe, Sip, System Testing, Tcp/ip.
Who are Kostas Alexopoulos's colleagues?
Kostas Alexopoulos's colleagues are Djurdjica Despotovic, Brian Mccormack, 黄相全, Kristina Djuric, Djordje Tesic, Ding Jianhua, Nenad Kovacevic.
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