Ilie Carmen-Elena

Fixed Access Performance Expert at VOIS

Develop new KPIs for the WiFi network to understand user experience; implement KPIs using raw data stored in Google Cloud Platform; perform ad-hoc analyses with SQL queries on Big Data; build dashboards in Qlik Sense and Power BI; track KPI trends weekly and perform deep-dives for proactive improvements; create a scoring model to compare CPE models and markets and maintain fully automated dashboards.

NW Performance and Optimization Engineer at Deltatel for Nokia

Analyze RAN KPIs for 2G, 3G and 4G across PLMN, region, cluster, site and cell; create WCR and investigate degradations from worst cell reports; perform root-cause analysis to improve user experience; handle customer complaint tickets; correlate incidents and planned works in NetAct; generate weekly customer reports and daily degradation reports; take actions to increase coverage (e.g., tilt modifications); monitor external interferences.

RAN Optimization Engineer at Huawei Romania

Analyze RAN KPIs for 2G/3G/4G (cell level, BSC/RNC level, network level) for T-Mobile Netherlands; monitor degradations and perform root-cause analysis; manage customer complaints; correlate changes with KPI deviations and coordinate with Network Performance and Network Integration teams; create RIS files for new cells; contribute to interference detection and optimization actions.

Network Performance Engineer at Vodafone Romania

Analyze Vodafone Germany network performance across 2G/3G/4G and transmission using SQL-based reports, Business Objects, and vendor tools; initiate problem resolution; evaluate network changes and their impact on KPIs; perform root-cause traces; contribute to GSM/UMTS/LTE KPI maintenance; participate in vendor and operator training.