Latif F.

About Latif F.

Result-oriented professional with over 10+ years of experience in cellular networks, including RF optimization, wireless modem log analysis, performance data analytics, and improvement projects in 5G/4G/3G/2G. Hands-on experience in NR 5G EPSFB/VoNR,NRCA, 4G/VoLTE, IMS, WCDMA, GSM, and EDGE in multi-RAN vendor environments at multinational workplaces.Started my career as an RF Optimization Engineer, working with counters, KPIs, and RAN parameters tuning from a 2G GSM/EDGE system back in 2008. Since then, I have continued to work on 3G WCDMA, LTE, and 5G SA with a detailed understanding of 3GPP and ETSI standards related to PDCP/PHY/MAC/RRC.I have hands-on experience on the network side as RAN RF optimization and on the device side in modem performance and log analysis, utilizing various tools from chipset vendors and network tools such as QXDM/QCAT, Netscout, and Trucall.In-depth knowledge of end-to-end 5G network architecture, including NG-RAN, 5G Core, IMS, NFV, and SDN. Hands-on experience in 5G device chipset logfile analysis for Qualcomm, MediaTek, and Samsung to identify issues with PHY Layer, MAC, RRC, and IMS.Proficient in Microsoft Excel/Access, SQL, and Java, reducing daily manual work by 40%.Experienced in multi-vendor specific software applications to check PM counters, KPIs, customize KPI formulas, and monitor alarms in QXDM, QCAT, NetScout, SPIRENT, UMETRIX, NOMAD, R&S, Netact, LMT, OMC, PRS, and learner, open to new challenges and ideas.

Experience

1. 5g Lte Lab Technical Support Engineer

   T-Mobile

   Mar 2021 — Present · Bellevue, WA, US

   Focusing on 5G/LTE post-launch device performance metrics to identify underperforming devices in terms of DCR, AFR, latency, NRCA, and advanced UE feature testing. Discover failure scenarios from field networks, set up the automation lab to replicate failures with UE logs, and create Jira tickets for OEMs to address potential fixes in regular software MRs.Analyze VoNR, VoLTE, EPSFB, and VoWiFi modem logs using tools like QCAT, WireShark, ELT, and DM Shannan for major OEM devices (Samsung, Google, Motorola).Utilize network tools like NETSCOUT, OneData, and TrueCall to identify RAN, Core, and IMS issues in LTE/5G networks. Collaborate with network teams, developers, and OEMs to troubleshoot device and network challenges.Document and track issues effectively using Jira.

Education

• Kabul University

  Bachelor in engineering, Electrical and Electronics

  2003 — 2007