MU

Marian Ungureanu

Available to hire

I'm Marian Ungureanu, a telecommunications engineer with over 10 years of RAN experience, specializing in troubleshooting and root cause analysis across SRAN/4G/5G networks.

About

I’m Marian Ungureanu, a telecommunications engineer with over 10 years of RAN experience, specializing in troubleshooting and root cause analysis across SRAN/4G/5G networks. I enjoy turning complex network issues into actionable fixes and I’m driven by a passion for reliable, KPI-driven performance optimization.

In my current role, I lead feature testing and ownership, mentor colleagues through knowledge-transfer sessions, and collaborate with vendors to ensure SLA compliance and operational excellence. I value clear communication, thorough regression testing, and reproducible lab fault reproduction to sustain robust network performance.

  • 23 years' experience
  • Joined January 2026

Languages

  • EnglishFluent
  • FrenchAdvanced

Industry experience

  • Telecommunications
  • Software & Internet
  • Professional Services

More experts in Lugoj, Romania

Work experience· 5 roles

RAN Test Engineer · Nokia NetworksSep 2015 – Present · 11 yrs 3 mos

Acted as Feature Test Lead / Feature Owner, managing new feature implementation, test case specification, execution, and regression testing. Logged defects, track status, and technical report details to program management. Tier-3 RAN Support and RCA for 4G/5G networks, troubleshooting escalated incidents and implementing permanent fixes for NPI projects. Conducted KPI analysis and performance optimizations, reproduced faults in lab environments. Mentored engineers through knowledge transfer sessions and standardized troubleshooting methodologies.

LTE System Test Engineer · Nokia NetworksJul 2012 – Sep 2015 · 3 yrs 3 mos

Executed system tests for LTE Macro & Metro Cells, validating new features and improving network stability. Used diagnostic tools to analyze signaling, debug faults, and raise defects with detailed reporting.

Telecommunication Engineer · Deltatel RomaniaJan 2008 – Jan 2012 · 4 yrs 1 mo

Site survey, installation, and troubleshooting coordination.

Test Support Engineer · Flextronics RomaniaJan 2006 – Jan 2008 · 2 yrs 1 mo
Test Technician · Solectron RomaniaJan 2003 – Jan 2006 · 3 yrs 1 mo

Education

Engineer · Politehnica University Timisoara2000 – 2005
Engineer · Politehnica University Timisoara2000 – 2005

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