cherif achref
@cherifachref
Telecom data validation expert with a focus on network optimization.
What I'm looking for
I am a telecom data validation expert with over 3 years of experience in optimizing telecom networks. My specialization lies in auditing, cleaning, and certifying 4G/5G datasets, ensuring data accuracy exceeds 98% through automated audits using Python and SQL. I have successfully led end-to-end data compliance for VoLTE and 5G launches, transforming raw KPIs into actionable insights that optimize key performance indicators such as MOS scores and throughput.
In my current role as VoLTE Owner and RNO Lead Engineer at Tunisia Telecom, I have implemented automated validation checks that reduced MOS score discrepancies by 18%. My analytical skills have enabled me to identify performance gaps across 1000+ sites, presenting actionable insights that significantly enhance network quality. I am adept at cross-functional collaboration, coordinating with international teams to integrate scripts into live networks, ensuring compliance with NSA standards.
My technical skills encompass a wide range of telecom analytics, including KPI benchmarking, statistical modeling, and data visualization tools like Power BI and Excel. I am passionate about leveraging my expertise to drive data integrity and optimize network performance in the telecom sector.
Experience
Work history, roles, and key accomplishments
VoLTE Owner & RNO lead Engineer
Tunisia Telecom
Mar 2025 - Present (2 months)
Implemented automated validation checks for VoLTE call traces, reducing MOS score discrepancies by 18%. Analyzed VoLTE coverage and UE capability data for over 1000 sites, identifying key performance gaps and optimizing network quality.
VoLTE Owner & RNO lead Engineer
Orange
May 2024 - Present (1 year)
Audited 5G EN-DC datasets for over 50 sites, achieving 1G+ throughput with less than 1% packet loss. Developed Python tools to identify voice quality KPIs and implement optimization parameters, improving VoLTE MOS to 4.1.
Network Planning & Optimization Engineer
Ooredoo
Jun 2023 - Present (1 year 11 months)
Cleaned multi-RAT neighbor lists, reducing handover failures by 22%. Automated daily validation of OSS KPI datasets using Pandas, cutting manual review time by 35%.
Optimization Engineer
Orange
Jan 2023 - Present (2 years 4 months)
Flagged 15% irregular KPIs in drive-test datasets, resolving capacity bottlenecks. Validated A3/A5 threshold datasets, improving handover success by 25%.
SSV Handler
Tunisia Telecom
Jul 2022 - Present (2 years 10 months)
Certified RF parameter datasets for over 80 sites, achieving 97% first-pass acceptance. Maintained audit trails for all configuration changes, including PCI, tilt, and azimuth.
Education
Degrees, certifications, and relevant coursework
Higher School of Communication of Tunis
National Diploma, Telecommunications Engineering
Completed a comprehensive program focused on telecommunications engineering principles. Gained expertise in network design, data transmission, and communication systems.
Availability
Location
Authorized to work in
Job categories
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