Wondimu Muta

Results-driven Telecom Engineer Specialist with 11+ years of experience architecting, deploying, and optimizing 2G/3G/4G/5G Radio Access Networks (RAN), Microwave Transport, and Fixed Access Networks (PSTN/MSAN/DSLAM). Proven track record of improving network KPIs by 15-20% across 800+ sites through strategic integration and RF optimization. Huawei/ZTE certified expert in Packet Core (SGSN/GGSN/MME), IMS call flows, and 5G NR deployment.

Led cross-functional teams across Ethiopia, consistently delivering projects ahead of schedule while maintaining 99.9% network availability.

RAN, MW and Core Network Operation Specialist at Ethio Telecom (2020-01 – Present)

• Engineered end-to-end 4G/5G call flows across Packet Core and IMS, reducing call drop rates by 12% over 18 months
• Spearheaded RF optimization initiatives resulting in 15% improvement in RRC setup success rate and 20% reduction in call drop rate
• Led 50+ drive test campaigns across 6 regions, analyzing post-processing data to optimize handover parameters, increasing LTE throughput by 22%
• Managed end-to-end site integration for 800+ BTS locations, reducing average commissioning time from 3 days to 1.5 days through process standardization
• Monitored and analyzed performance metrics for 45+ core nodes (SGSN/GGSN/MME), maintaining 98.7% network availability across 2G/3G networks
• Resolved 95% of 2G/3G/4G/5G connectivity issues within SLA, implementing root cause analysis processes that reduced repeat incidents by 40%
• Collaborated with Huawei and ZTE vendor teams to deploy 5G NR sites, achieving first call completion within 48 hours of site acceptance
• Architected microwave transport network using RTN 905/950/980, ensuring 99.95% backhaul uptime across 200+ remote sites

Fixed Access Network Engineer at Ethio Telecom (2018-01 – 2020-12)

• Deployed and maintained 150+ MSAN/MSAG/DSLAM nodes (Huawei MA5600T, ZTE ZXDSL 9806H), expanding broadband coverage to 25,000+ residential and business customers
• Architected last-mile connectivity solutions for 100+ Kebeles, reducing average service activation time from 14 days to 3 days
• Engineered PSTN/MSAN call flows and interconnection protocols, achieving 99.5% voice service availability
• Led troubleshooting for fixed access network issues, achieving 97% first-call resolution rate and reducing mean time to repair (MTTR) by 45%

Technical Support Engineer at Ethio Telecom (2015-01 – 2018-12)

• Resolved 280+ daily technical inquiries for mobile and fixed network services, maintaining 92% first-call resolution rate and 4.7/5 customer satisfaction score
• Identified and documented network issue patterns, collaborating with engineering teams to reduce recurring complaints by 30% within 6 months
• Trained 15 new hires on CRM systems (Salesforce) and troubleshooting protocols, improving team efficiency by 20%
• Escalated complex RF and core network issues, ensuring 100% of critical tickets resolved within SLA

Master of Science in Computer Science – University of Wolaita Sodo (2023-01)

Bachelor of Science in Computer Science – University of Wollo (2011-01 – 2014-12)