Zied Smida

• • Designed and delivered monitoring and probing solutions for IMS, VoLTE, EPC, and 5G NSA networks

• • Led solution architecture for large-scale orange projects, ensuring scalability and operational readiness

• • Defined test plans, validation strategies, and VABF/VSR processes to guarantee service quality

• • Coordinated with engineering teams and suppliers (Mobileum, Anritsu, Syniverse, Evolved Intelligence) to finalize end-to-end designs and deliverables (HLD, LLD, ATP )

• • Identified architectural risks, proposed mitigation strategies, and ensured alignment with operational constraints

• • Produced detailed solution documentation and test books for knowledge transfer

• • Managed stakeholder relations with customers, suppliers, and internal teams, providing regular updates to management

• • Supported deployment, integration, and post-delivery validation, ensuring compliance with project timelines and quality standards

• • Led solution architecture for large-scale orange projects

• • Integrated and supported Ericsson core nodes (SGSN, MME, SGW, PGW, EPG-M/S, GSS, iDNS) and PCRF/PCEF platforms.

• • Provided EPC, IMS, and VoLTE integration and troubleshooting, including 1st/2nd level support for live networks.

• • Conducted Gn/Gi/Gx/ESy/Gy/Gr/Iu traffic capture and analysis using Wireshark; performed LTE interface trace analysis for problem resolution and optimization.

• • Managed emergency cases, software/hardware upgrades, and node lifecycle management.

• • Contributed to Mobile Broadband Charging projects, including OCS, PCRF, SACC/DPI configuration, and EPG integration with Charging System via Gx/Gy.

• • Monitored network KPIs and performed detailed reporting for PS 2G/3G/4G networks.

• • Validated HLD and LLD design documents for EPC and packet core evolution projects.

• • Configured HLR (ALU SDM 8650 3.1) and handled signaling/traffic routing.

• • Optimized network performance through proactive analysis of attach, bearer activation, RAU, handover, and CSFB procedures.

• • Collaborated with vendors and internal teams to plan network expansion, implement new features, and resolve complex signaling and QoS issues.

• • Participated in EPC upgrade planning, software patching, and end-to-end network testing.