Senior Service Engineer with extensive experience in troubleshooting complex telecom issues and enhancing customer satisfaction.
Overview
12
12
years of professional experience
Work History
Senior Service Engineer
BICS (over Infopulse Ukraine)
06.2018 - Current
Providing first-line support for voice transit, value-added voice services, messaging, GRX/IPX, LTE signaling, SS7 signaling, IoT and roaming hub services.
Investigating and resolving customer complaints, managing internal and external escalations to ensure service quality, and customer satisfaction.
Conducting troubleshooting for freephone and inbound number services, addressing issues such as incorrect routing, voice quality concerns, and service disruptions.
Diagnoses and resolution of complex technical issues related to SIP/ISUP, RTP, SDP, SS7, DIAMETER, and GTP protocols, as well as roaming flow operations.
Delivering training sessions and knowledge transfer for new team members in different offices and locations.
Service Platforms Planning and Development Special
Vodafone Ukraine MNO
06.2015 - 06.2018
Implementation and development of VAS platforms, mainly the Location-Based Services (LBS).
Drafting RFPs, RFIs, and technical tasks in alignment with business requirements.
Network Operations Center Engineer
ESU Ltd.
01.2014 - 06.2015
24/7 BSS/RAN monitoring.
Education
Specialist Degree With Honours - Telecommunications & Computer Networking
National Aviation University
Kyiv, Ukraine
06-2015
Skills
Technical Skills
Telecom Network Support – Troubleshooting and resolving issues related to voice transit, messaging (SMS, A2P, P2P), mobile data (GRX/IPX), LTE, and SS7 signaling, roaming hubs, and VoIP/SIP services;
Protocol Analysis – Proficient in SIP, RTP, SDP, SS7 (MAP, INAP, CAP), Diameter, GTP (GTPv1/v2), ISUP, and SIGTRAN for troubleshooting and network optimization;
Network Monitoring and Incident Management – Experience with network monitoring tools, proactive issue detection, and resolution; Voice & Data Quality Assurance – Investigating and resolving call failures, voice quality issues, incorrect routing, and service disruptions;
Escalation Handling – Managing critical incidents, vendor escalations, and cross-functional coordination to ensure timely resolution; VAS & Cloud Communication Services – Support and troubleshooting for Value-Added Services (VAS), Location-Based Services (LBS), freephone, and inbound number services; Customer & Service
Customer & Service Management Skills
Customer Complaint Resolution – Handling customer issues, providing technical support, and ensuring high service quality and customer satisfaction;
Stakeholder Communication – Coordinating with internal teams, vendors, and operators to resolve network and service-related issues;
Process Improvement – Identifying and implementing improvements in troubleshooting procedures and service delivery;
Training and Knowledge Sharing – Providing training, documentation, and knowledge transfer to junior engineers and new hires
Languages
Ukrainian
First Language
English
Advanced (C1)
C1
Affiliations
Traveling, photography
Timeline
Senior Service Engineer
BICS (over Infopulse Ukraine)
06.2018 - Current
Service Platforms Planning and Development Special
Vodafone Ukraine MNO
06.2015 - 06.2018
Network Operations Center Engineer
ESU Ltd.
01.2014 - 06.2015
Specialist Degree With Honours - Telecommunications & Computer Networking