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Work experience

NOC Coordinator (Team Lead / NOC Manager)

from 08.2021 to now (5 years)
AfinnaOne, Дистанційно (IT)

Final escalation point (L2/L3) for complex cases: SIP signalling analysis, one-way audio
and voice-quality issues, routing faults, interop problems between customer and vendor
equipment
•Lead a 24/7 NOC team of 4–6 engineers: shift planning and coverage, workload
distribution, performance reviews
•Own incident management end to end for a network carrying up to 3M minutes/month
across EU, Africa and Asia — detection, classification, escalation, customer and vendor
communication, post-incident follow-up
•Manage a queue of ~250 tickets/month in OTRS, controlling response and resolution
times and holding SLA commitments to wholesale partners
•Run traffic-anomaly and fraud monitoring (FAS, CLI manipulation, spikes to high-risk
destinations); drive blocking decisions and technical escalations to vendors
•Investigate quality degradations using SIP traces, CDR analysis and monitoring
dashboards; adjust routing and escalate to carriers with evidence-based reports
•Hired, onboarded and mentored 6 engineers into NOC, support and routing roles; built
runbooks and internal documentation that shortened ramp-up to independent shifts
•Coordinate with routing, billing and vendor management teams during outages and quality incidents

Routing Manager (L2 VoIP Engineer)

from 08.2019 to 07.2021 (2 years)
AfinnaOne, Дистанційно (IT)

Managed call routing and LCR configuration in MediaCore softswitch and AccuCore
across EU, Africa and Asia destinations
•Monitored route performance and traffic quality daily (ASR, ACD, PDD); rerouted traffic in
real time when vendor quality degraded
•Sourced, tested and onboarded new carriers: test calls, quality validation, fraud/FAS
screening, technical negotiation, rate sheet handling
•Resolved L2 escalations: SIP signalling and call-flow analysis, CDR investigation, isolation
of faults between customer, softswitch and vendor
•Handled vendor disputes with trace-backed evidence; maintained routing

NOC Engineer (L1 Support)

from 01.2019 to 07.2019 (7 months)
AfinnaOne, Дистанційно (IT)

First point of contact for customer and vendor technical requests
•Investigated issues using logs, monitoring dashboards and CDR data; performed first-line
troubleshooting and fault isolation
•Escalated to L2/L3 with structured, reproducible problem descriptions

Education

ONU Mechnikov

Computer engineering (MOKS), Одеса
Unfinished higher, from 2014 to 2019 (5 years)

Компьютерный инженер — это специалист по компьютерным сетям и технологиям. Компьютерные инженеры, имеют профессиональную подготовку в области электротехники, программного обеспечения и интеграции аппаратно-программного обеспечения.

Knowledge and skills

• Підтримка VoIP-мережі
• SIP
• SDP
• RTP
• Call routing
• Call forwarding
• LCR
• Codecs and transcoding
• Fraud and FAS detection
• TCP/IP
• UDP
• NAT
• DNS
• MediaCore
• AccuCore
• Wireshark
• Log analysis
• CDR analysis
• SQL

Language proficiencies

• English — above average
• Ukrainian — fluent

Disability

3rd degree.